QUDT VOCAB Physical Constants Release 3.3.0
type: Ontology
imports: qudt
imports: unit
has graph metadata: QUDT Constants Version 3.3Vocabulary

Alpha particle-electron mass ratio
type: PhysicalConstant
has quantity kind: DimensionlessRatio
informative reference: http://physics.nist.gov/cuu/Constants/bibliography.html
quantity value: Value for alpha particle-electron mass ratio

Alpha particle mass
type: PhysicalConstant
has quantity kind: Mass
informative reference: http://physics.nist.gov/cuu/Constants/bibliography.html
quantity value: Value for alpha particle mass

alpha particle mass energy equivalent
type: PhysicalConstant
has quantity kind: Energy
informative reference: http://physics.nist.gov/cuu/Constants/bibliography.html
quantity value: Value for alpha particle mass energy equivalent

Alpha particle mass energy equivalent in Me V
type: PhysicalConstant
has quantity kind: Energy
informative reference: http://physics.nist.gov/cuu/Constants/bibliography.html
quantity value: Value for alpha particle mass energy equivalent in MeV

alpha particle mass in atomic mass unit
type: PhysicalConstant
has quantity kind: Mass
informative reference: http://physics.nist.gov/cuu/Constants/bibliography.html
quantity value: Value for alpha particle mass in atomic mass unit

alpha particle molar mass
type: PhysicalConstant
has quantity kind: MolarMass
informative reference: http://physics.nist.gov/cuu/Constants/bibliography.html
quantity value: Value for alpha particle molar mass

alpha particle-proton mass ratio
type: PhysicalConstant
has quantity kind: DimensionlessRatio
informative reference: http://physics.nist.gov/cuu/Constants/bibliography.html
quantity value: Value for alpha particle-proton mass ratio

Angstrom star
type: PhysicalConstant
has quantity kind: Length
informative reference: http://physics.nist.gov/cuu/Constants/bibliography.html
quantity value: Value for Angstrom star

atomic mass constant
type: PhysicalConstant
description: The $\textit{Atomic Mass Constant}$ is one twelfth of the mass of an unbound atom of carbon-12 at rest and in its ground state.
applicable unit: KiloGM
dbpedia match: http://dbpedia.org/resource/Atomic_mass_constant
has dimension vector: A0E0L0I0M1H0T0D0
has quantity kind: Mass
informative reference: http://physics.nist.gov/cuu/Constants/bibliography.html
informative reference: https://en.wikipedia.org/wiki/Atomic_mass_constant
latex symbol: $m_u$
normative reference: http://www.iso.org/iso/catalogue_detail
quantity value: Value for atomic mass constant

atomic mass constant energy equivalent
type: PhysicalConstant
has quantity kind: Energy
informative reference: http://physics.nist.gov/cuu/Constants/bibliography.html
quantity value: Value for atomic mass constant energy equivalent

atomic mass constant energy equivalent in MeV
type: PhysicalConstant
has quantity kind: Energy
informative reference: http://physics.nist.gov/cuu/Constants/bibliography.html
quantity value: Value for atomic mass constant energy equivalent in MeV

atomic mass unit-electron volt relationship
type: PhysicalConstant
has quantity kind: Energy
informative reference: http://physics.nist.gov/cuu/Constants/bibliography.html
quantity value: Value for atomic mass unit-electron volt relationship

atomic mass unit-hartree relationship
type: PhysicalConstant
has quantity kind: Energy
informative reference: http://physics.nist.gov/cuu/Constants/bibliography.html
quantity value: Value for atomic mass unit-hartree relationship

atomic mass unit-hertz relationship
type: PhysicalConstant
has quantity kind: Frequency
informative reference: http://physics.nist.gov/cuu/Constants/bibliography.html
quantity value: Value for atomic mass unit-hertz relationship

atomic mass unit-inverse meter relationship
type: PhysicalConstant
has quantity kind: InverseLength
informative reference: http://physics.nist.gov/cuu/Constants/bibliography.html
quantity value: Value for atomic mass unit-inverse meter relationship
label: atomic mass unit-inverse metre relationship

atomic mass unit-joule relationship
type: PhysicalConstant
has quantity kind: Energy
informative reference: http://physics.nist.gov/cuu/Constants/bibliography.html
quantity value: Value for atomic mass unit-joule relationship

atomic mass unit-kelvin relationship
type: PhysicalConstant
has quantity kind: ThermodynamicTemperature
informative reference: http://physics.nist.gov/cuu/Constants/bibliography.html
quantity value: Value for atomic mass unit-kelvin relationship

atomic mass unit-kilogram relationship
type: PhysicalConstant
has quantity kind: Mass
informative reference: http://physics.nist.gov/cuu/Constants/bibliography.html
quantity value: Value for atomic mass unit-kilogram relationship

atomic unit of 1st hyperpolarizablity
type: PhysicalConstant
has quantity kind: CubicElectricDipoleMomentPerSquareEnergy
informative reference: http://physics.nist.gov/cuu/Constants/bibliography.html

atomic unit of 2nd hyperpolarizablity
type: PhysicalConstant
has quantity kind: QuarticElectricDipoleMomentPerCubicEnergy
informative reference: http://physics.nist.gov/cuu/Constants/bibliography.html

atomic unit of action
type: PhysicalConstant
has quantity kind: Action
informative reference: http://physics.nist.gov/cuu/Constants/bibliography.html
quantity value: Value for atomic unit of action

atomic unit of charge
type: PhysicalConstant
exact match: Elementary Charge
has quantity kind: ElectricCharge
informative reference: http://physics.nist.gov/cuu/Constants/bibliography.html
quantity value: Value for atomic unit of charge

atomic unit of charge density
type: PhysicalConstant
has quantity kind: ElectricChargeVolumeDensity
informative reference: http://physics.nist.gov/cuu/Constants/bibliography.html
quantity value: Value for atomic unit of charge density

atomic unit of current
type: PhysicalConstant
has quantity kind: ElectricCurrent
informative reference: http://physics.nist.gov/cuu/Constants/bibliography.html
quantity value: Value for atomic unit of current

atomic unit of electric dipole mom.
type: PhysicalConstant
has quantity kind: ElectricDipoleMoment
informative reference: http://physics.nist.gov/cuu/Constants/bibliography.html
quantity value: Value for atomic unit of electric dipole mom.

atomic unit of electric field
type: PhysicalConstant
has quantity kind: ElectricFieldStrength
informative reference: http://physics.nist.gov/cuu/Constants/bibliography.html
quantity value: Value for atomic unit of electric field

atomic unit of electric field gradient
type: PhysicalConstant
has quantity kind: EnergyPerAreaElectricCharge
informative reference: http://physics.nist.gov/cuu/Constants/bibliography.html
quantity value: Value for atomic unit of electric field gradient

atomic unit of electric polarizablity
type: PhysicalConstant
has quantity kind: Polarizability
informative reference: http://physics.nist.gov/cuu/Constants/bibliography.html
quantity value: Value for atomic unit of electric polarizability

atomic unit of electric potential
type: PhysicalConstant
has quantity kind: EnergyPerElectricCharge
informative reference: http://physics.nist.gov/cuu/Constants/bibliography.html
quantity value: Value for atomic unit of electric potential

atomic unit of electric quadrupole moment
type: PhysicalConstant
has quantity kind: ElectricQuadrupoleMoment
informative reference: http://physics.nist.gov/cuu/Constants/bibliography.html
quantity value: Value for atomic unit of electric quadrupole moment

atomic unit of energy
type: PhysicalConstant
has quantity kind: Energy
informative reference: http://physics.nist.gov/cuu/Constants/bibliography.html
quantity value: Value for atomic unit of energy

atomic unit of force
type: PhysicalConstant
has quantity kind: Force
informative reference: http://physics.nist.gov/cuu/Constants/bibliography.html
quantity value: Value for atomic unit of force

atomic unit of length
type: PhysicalConstant
has quantity kind: Length
informative reference: http://physics.nist.gov/cuu/Constants/bibliography.html
quantity value: Value for atomic unit of length

atomic unit of magnetic dipole moment
type: PhysicalConstant
has quantity kind: MagneticDipoleMoment
informative reference: http://physics.nist.gov/cuu/Constants/bibliography.html
quantity value: Value for atomic unit of magnetic dipole moment

atomic unit of magnetic flux density
type: PhysicalConstant
has quantity kind: MagneticFluxDensity
informative reference: http://physics.nist.gov/cuu/Constants/bibliography.html
quantity value: Value for atomic unit of magnetic flux density

atomic unit of magnetizability
type: PhysicalConstant
has quantity kind: EnergyPerSquareMagneticFluxDensity
informative reference: http://physics.nist.gov/cuu/Constants/bibliography.html
quantity value: Value for atomic unit of magnetizability

atomic unit of mass
type: PhysicalConstant
has quantity kind: Mass
informative reference: http://physics.nist.gov/cuu/Constants/bibliography.html
quantity value: Value for atomic unit of mass

atomic unit of momentum
type: PhysicalConstant
has quantity kind: LinearMomentum
informative reference: http://physics.nist.gov/cuu/Constants/bibliography.html
quantity value: Value for atomic unit of momentum

atomic unit of permittivity
type: PhysicalConstant
exact constant: true
has quantity kind: Permittivity
informative reference: http://physics.nist.gov/cuu/Constants/bibliography.html
quantity value: Value for atomic unit of permittivity

atomic unit of time
type: PhysicalConstant
has quantity kind: Time
informative reference: http://physics.nist.gov/cuu/Constants/bibliography.html
quantity value: Value for atomic unit of time

atomic unit of velocity
type: PhysicalConstant
has quantity kind: LinearVelocity
informative reference: http://physics.nist.gov/cuu/Constants/bibliography.html
quantity value: Value for atomic unit of velocity

Avogadro constant
type: PhysicalConstant
description: The $\textit{Avogadro Constant}$ is defined as the ratio of the number of constituent particles N in a sample to the amount of substance $n$ through the relationship $NA = N/n$. Thus, it is the proportionality factor that relates the molar mass of an entity, that is, the mass per amount of substance, to the mass of said entity.
abbreviation: mole^{-1}
applicable unit: PER-MOL
dbpedia match: http://dbpedia.org/resource/Avogadro_constant
has dimension vector: A-1E0L0I0M0H0T0D0
has quantity kind: InverseAmountOfSubstance
iec61360 code: 0112/2///62720#UAD015
informative reference: http://physics.nist.gov/cuu/Constants/bibliography.html
informative reference: https://cdd.iec.ch/cdd/iec62720/iec62720.nsf/ListsOfUnitsAllVersions/0112-2---62720%23UAD015
informative reference: https://en.wikipedia.org/wiki/Avogadro_constant
latex definition: $L = \frac{N}{n}$, where $N$ is the number of particles and $n$ is amount of substance.
latex symbol: $L, N_A$
normative reference: http://www.iso.org/iso/catalogue_detail
quantity value: Value for Avogadro constant
si exact match: AvogadroConstant

Bohr Magneton
type: PhysicalConstant
description: The $\textit{Bohr Magneton}$ is a physical constant and the natural unit for expressing an electron magnetic dipole moment.
applicable unit: J-PER-T
dbpedia match: http://dbpedia.org/resource/Bohr_magneton
has quantity kind: MagneticDipoleMoment
informative reference: http://physics.nist.gov/cuu/Constants/bibliography.html
informative reference: https://en.wikipedia.org/wiki/Bohr_magneton
iso normative reference: http://www.iso.org/iso/catalogue_detail
latex definition: $\mu_B = \frac{e\hbar}{2m_e}$, where $e$ is the elementary charge, $\hbar$ is the Planck constant, and $m_e$ is the rest mass of electron.
latex symbol: $\mu_B$
normative reference: http://www.iso.org/iso/catalogue_detail
quantity value: Value for Bohr magneton

Bohr magneton in eV per T
type: PhysicalConstant
has quantity kind: MagneticDipoleMoment
informative reference: http://physics.nist.gov/cuu/Constants/bibliography.html
quantity value: Value for Bohr magneton in eV per T

Bohr magneton in Hz perT
type: PhysicalConstant
has quantity kind: ElectricChargePerMass
informative reference: http://physics.nist.gov/cuu/Constants/bibliography.html
quantity value: Value for Bohr magneton in Hz perT

Bohr magneton in inverse meters per tesla
type: PhysicalConstant
has quantity kind: MagneticReluctivity
informative reference: http://physics.nist.gov/cuu/Constants/bibliography.html
quantity value: Value for Bohr magneton in inverse meters per tesla
label: Bohr magneton in inverse metres per tesla

Bohr magneton in K per T
type: PhysicalConstant
has quantity kind: TemperaturePerMagneticFluxDensity
informative reference: http://physics.nist.gov/cuu/Constants/bibliography.html
quantity value: Value for Bohr magneton in K per T

Bohr Radius
type: PhysicalConstant
description: The $\textit{Bohr Radius}$ is a physical constant, approximately equal to the most probable distance between the proton and electron in a hydrogen atom in its ground state. It is named after Niels Bohr, due to its role in the Bohr model of an atom. The precise definition of the Bohr radius is: $$a_0 = \frac{4\pi \epsilon_0 \hbar^2}{me^2}$$ Where, $a_0$ is the Bohr radius, $\epsilon_0$ is the permittivity of a vacuum, $m_e$ is the mass of an electron, $\hbar$ is the reduced Planck's constant, $e$ is the elementary charge. When rearranged to highlight the role of the Coulomb constant and the elementary charge, the formula can be shown as: $$a_0 \equiv \frac{{\hbar ^2 }}{{m_e ke^2 }}$$ Where, $a_0$ is the Bohr radius, $m_e$ is the mass of an electron, $\hbar$ is the reduced Planck's constant, $k$ is the Coulomb Constant, $e$ is the elementary charge.
applicable system: SI
applicable unit: http://qudt.org/vocab/unit/M
dbpedia match: http://dbpedia.org/resource/Bohr_radius
has quantity kind: Length
informative reference: http://physics.nist.gov/cuu/Constants/bibliography.html
informative reference: http://www.deepnlp.org/blog/atomic-electro-chemical-equations
informative reference: http://www.iso.org/iso/home/store/catalogue_tc/catalogue_detail.htm
informative reference: https://byjus.com/physics/bohr-radius/
informative reference: https://en.wikipedia.org/wiki/Bohr_radius
latex definition: $a_0 = \frac{4\pi \varepsilon_0 \hbar^2}{m_ee^2}$, where $\varepsilon_0$ is the electric constant, $\hbar$ is the reduced Planck constant, $m_e$ is the rest mass of electron, and $e$ is the elementary charge.
latex symbol: $a_0$
normative reference: http://www.iso.org/iso/catalogue_detail
quantity value: Value for Bohr radius

Boltzmann Constant
type: PhysicalConstant
description: The $\textit{Boltzmann Constant}$, symbol $k$ or $kB$, is the physical constant relating energy at the individual particle level with temperature, which must necessarily be observed at the collective or bulk level. It is the gas constant $R$ divided by the Avogadro constant $N_A$, having the same dimension as entropy. It is named after the Austrian physicist Ludwig Boltzmann.
applicable unit: J-PER-K
dbpedia match: http://dbpedia.org/resource/Boltzmann_constant
has quantity kind: HeatCapacity
informative reference: https://en.wikipedia.org/wiki/Boltzmann_constant
iso normative reference: http://www.iso.org/iso/catalogue_detail
latex symbol: $k$
quantity value: Value for Boltzmann constant
si exact match: BoltzmannConstant
ucum code: [k]

Boltzmann constant in eV per K
type: PhysicalConstant
has quantity kind: HeatCapacity
informative reference: http://physics.nist.gov/cuu/Constants/bibliography.html
quantity value: Value for Boltzmann constant in eV per K

Boltzmann constant in Hz per K
type: PhysicalConstant
has quantity kind: InverseTimeTemperature
informative reference: http://physics.nist.gov/cuu/Constants/bibliography.html
quantity value: Value for Boltzmann constant in Hz per K

Boltzmann constant in inverse meters per kelvin
type: PhysicalConstant
has quantity kind: InverseLengthTemperature
informative reference: http://physics.nist.gov/cuu/Constants/bibliography.html
quantity value: Value for Boltzmann constant in inverse meters per kelvin
label: Boltzmann constant in inverse metres per kelvin

characteristic impedance of vacuum
type: PhysicalConstant
description: The constant $\textit{Characteristic Impedance of Vacuum}$, symbol $Z0$ is the impedance of free space. This is a physical constant relating the magnitudes of the electric and magnetic fields of electromagnetic radiation travelling through free space. That is, $Z0 = |E|/|H|$, where $|E|$ is the electric field strength and $|H|$ magnetic field strength. It has an exact value, given approximately as 376.73031 ohms. The impedance of free space equals the product of the vacuum permeability or magnetic constant $μ0$ and the speed of light in vacuum $c0$. Since the numerical values of the magnetic constant and of the speed of light are fixed by the definitions of the ampere and the metre respectively, the exact value of the impedance of free space is likewise fixed by definition and is not subject to experimental error.
dbpedia match: http://dbpedia.org/resource/Impedance_of_free_space
exact constant: true
has quantity kind: Resistance
informative reference: http://physics.nist.gov/cuu/Constants/bibliography.html
quantity value: Value for characteristic impedance of vacuum

classical electron radius
type: PhysicalConstant
dbpedia match: http://dbpedia.org/resource/Classical_electron_radius
has quantity kind: Length
informative reference: http://physics.nist.gov/cuu/Constants/bibliography.html
quantity value: Value for classical electron radius

Compton Wavelength
type: PhysicalConstant
description: The constant $\textit{Compton Wavelength}$ is a quantum mechanical property of a particle. It was introduced by Arthur Compton in his explanation of the scattering of photons by electrons. The process is known as Compton scattering. The Compton Wavelength of a particle is equivalent to the wavelength of a photon whose energy is the same as the rest-mass energy of the particle.
applicable unit: http://qudt.org/vocab/unit/M
dbpedia match: http://dbpedia.org/resource/Compton_wavelength
has quantity kind: Length
informative reference: http://physics.nist.gov/cuu/Constants/bibliography.html
informative reference: https://en.wikipedia.org/wiki/Compton_wavelength
latex definition: $\lambda_C = \frac{h}{mc_0}$, where $h$ is the Planck constant, $m$ is the rest mass of a particle, and $c_0$ is the speed of light in vacuum.
latex symbol: $\lambda_C$
normative reference: http://www.iso.org/iso/catalogue_detail
quantity value: Value for Compton wavelength

Compton wavelength over 2 pi
type: PhysicalConstant
has quantity kind: Length
informative reference: http://physics.nist.gov/cuu/Constants/bibliography.html
quantity value: Value for Compton wavelength over 2 pi

conductance quantum
type: PhysicalConstant
dbpedia match: http://dbpedia.org/resource/Conductance_quantum
has quantity kind: ElectricConductivity
informative reference: http://physics.nist.gov/cuu/Constants/bibliography.html
quantity value: Value for conductance quantum

conventional value of Josephson constant
type: PhysicalConstant
exact constant: true
has quantity kind: InverseMagneticFlux
informative reference: http://physics.nist.gov/cuu/Constants/bibliography.html
quantity value: Value for conventional value of Josephson constant

conventional value of von Klitzing constant
type: PhysicalConstant
exact constant: true
has quantity kind: Resistance
informative reference: http://physics.nist.gov/cuu/Constants/bibliography.html
quantity value: Value for conventional value of von Klitzing constant

Cu x unit
type: PhysicalConstant
has quantity kind: Length
informative reference: http://physics.nist.gov/cuu/Constants/bibliography.html
quantity value: Value for Cu x unit

deuteron-electron magnetic moment ratio
type: PhysicalConstant
has quantity kind: DimensionlessRatio
informative reference: http://physics.nist.gov/cuu/Constants/bibliography.html
quantity value: Value for deuteron-electron magnetic moment ratio

deuteron-electron mass ratio
type: PhysicalConstant
has quantity kind: DimensionlessRatio
informative reference: http://physics.nist.gov/cuu/Constants/bibliography.html
quantity value: Value for deuteron-electron mass ratio

deuteron g factor
type: PhysicalConstant
has quantity kind: DimensionlessRatio
informative reference: http://physics.nist.gov/cuu/Constants/bibliography.html
quantity value: Value for deuteron g factor

deuteron magnetic moment
type: PhysicalConstant
has quantity kind: MagneticDipoleMoment
informative reference: http://physics.nist.gov/cuu/Constants/bibliography.html
quantity value: Value for deuteron magnetic moment

deuteron magnetic moment to Bohr magneton ratio
type: PhysicalConstant
has quantity kind: DimensionlessRatio
informative reference: http://physics.nist.gov/cuu/Constants/bibliography.html
quantity value: Value for deuteron magnetic moment to Bohr magneton ratio

deuteron magnetic moment to nuclear magneton ratio
type: PhysicalConstant
has quantity kind: DimensionlessRatio
informative reference: http://physics.nist.gov/cuu/Constants/bibliography.html
quantity value: Value for deuteron magnetic moment to nuclear magneton ratio

deuteron mass
type: PhysicalConstant
has quantity kind: Mass
informative reference: http://physics.nist.gov/cuu/Constants/bibliography.html
quantity value: Value for deuteron mass

deuteron mass energy equivalent
type: PhysicalConstant
has quantity kind: Energy
informative reference: http://physics.nist.gov/cuu/Constants/bibliography.html
quantity value: Value for deuteron mass energy equivalent

deuteron mass energy equivalent in MeV
type: PhysicalConstant
has quantity kind: Energy
informative reference: http://physics.nist.gov/cuu/Constants/bibliography.html
quantity value: Value for deuteron mass energy equivalent in MeV

deuteron mass in atomic mass unit
type: PhysicalConstant
has quantity kind: Mass
informative reference: http://physics.nist.gov/cuu/Constants/bibliography.html
quantity value: Deuteron Mass (amu)

deuteron molar mass
type: PhysicalConstant
has quantity kind: MolarMass
informative reference: http://physics.nist.gov/cuu/Constants/bibliography.html
quantity value: Value for deuteron molar mass

deuteron-neutron magnetic moment ratio
type: PhysicalConstant
has quantity kind: DimensionlessRatio
informative reference: http://physics.nist.gov/cuu/Constants/bibliography.html
quantity value: Value for deuteron-neutron magnetic moment ratio

deuteron-proton magnetic moment ratio
type: PhysicalConstant
has quantity kind: DimensionlessRatio
informative reference: http://physics.nist.gov/cuu/Constants/bibliography.html
quantity value: Value for deuteron-proton magnetic moment ratio

deuteron-proton mass ratio
type: PhysicalConstant
has quantity kind: DimensionlessRatio
informative reference: http://physics.nist.gov/cuu/Constants/bibliography.html
quantity value: Value for deuteron-proton mass ratio

deuteron rms charge radius
type: PhysicalConstant
has quantity kind: Length
informative reference: http://physics.nist.gov/cuu/Constants/bibliography.html
quantity value: Value for deuteron rms charge radius

electric constant
type: PhysicalConstant
dbpedia match: http://dbpedia.org/resource/Vacuum_permittivity
exact constant: true
has quantity kind: Permittivity
informative reference: http://physics.nist.gov/cuu/Constants/bibliography.html
quantity value: Value for electric constant

Permeability of Vacuum
type: PhysicalConstant
description: The $\textit{Permeability of Vacuum}$, also known as $\textit{Magnetic Constant}$, is a scalar constant $\mu_0$ such that, in a vacuum the product with the magnetic field vector, $\overrightarrow{H}$ is equal to the magnetic flux density vector, $\overrightarrow{B}$.
applicable unit: H-PER-M
dbpedia match: http://dbpedia.org/resource/Vacuum_permeability
exact constant: true
exact match: Magnetic Constant
has quantity kind: Permittivity
informative reference: http://www.electropedia.org/iev/iev.nsf/display
informative reference: http://www.iso.org/iso/home/store/catalogue_tc/catalogue_detail.htm
latex definition: $\mu_0 = \frac{\overrightarrow{B}}{\overrightarrow{H}}$, where $\overrightarrow{B}$ is the B-Filed magnetic vector, and $\overrightarrow{H}$ is the H-Field magnetic vector. The value of $\mu_0$ is $\approx 1.256637e-6\,henry\,per\,metre$.
latex symbol: $\mu_0$
quantity value: Value for magnetic constant
ucum code: [mu_0]

electron charge to mass quotient
type: PhysicalConstant
has quantity kind: ElectricChargePerMass
informative reference: http://physics.nist.gov/cuu/Constants/bibliography.html
quantity value: Value for electron charge to mass quotient

electron-deuteron magnetic moment ratio
type: PhysicalConstant
has quantity kind: DimensionlessRatio
informative reference: http://physics.nist.gov/cuu/Constants/bibliography.html
quantity value: Value for electron-deuteron magnetic moment ratio

electron-deuteron mass ratio
type: PhysicalConstant
has quantity kind: DimensionlessRatio
informative reference: http://physics.nist.gov/cuu/Constants/bibliography.html
quantity value: Value for electron-deuteron mass ratio

electron g factor
type: PhysicalConstant
has quantity kind: DimensionlessRatio
informative reference: http://physics.nist.gov/cuu/Constants/bibliography.html
quantity value: Value for electron g factor

Electron Gyromagnetic Ratio
type: PhysicalConstant
description: The $\textit{Electron Gyromagnetic Ratio}$ is a property that an isolated electron has for its angular momentum and magnetic moment resulting from its spin. While an electron's spin is sometimes visualized as a literal rotation about an axis, it is in fact a fundamentally different, quantum-mechanical phenomenon with no true analogue in classical physics. As a consequence there is no reason to expect the above classical relation to hold.
applicable unit: A-M2-PER-J-SEC
has quantity kind: GyromagneticRatio
informative reference: http://physics.nist.gov/cuu/Constants/bibliography.html
informative reference: https://en.wikipedia.org/wiki/Gyromagnetic_ratio#Gyromagnetic_ratio_for_an_isolated_electron
iso normative reference: http://www.iso.org/iso/catalogue_detail
latex definition: $\mu = \gamma_e J$, where $\mu$ is the magnetic dipole moment, and $J$ is the total angular momentum.
latex symbol: $\gamma_e$
normative reference: http://www.iso.org/iso/catalogue_detail
quantity value: Value for electron gyromagnetic ratio

electron gyromagnetic ratio over 2 pi
type: PhysicalConstant
has quantity kind: GyromagneticRatio
informative reference: http://physics.nist.gov/cuu/Constants/bibliography.html
quantity value: Value for electron gyromagnetic ratio over 2 pi

electron magnetic moment
type: PhysicalConstant
dbpedia match: http://dbpedia.org/resource/Electron_magnetic_dipole_moment
has quantity kind: MagneticDipoleMoment
informative reference: http://physics.nist.gov/cuu/Constants/bibliography.html
quantity value: Value for electron magnetic moment

electron magnetic moment anomaly
type: PhysicalConstant
has quantity kind: DimensionlessRatio
informative reference: http://physics.nist.gov/cuu/Constants/bibliography.html
quantity value: Value for electron magnetic moment anomaly

electron magnetic moment to Bohr magneton ratio
type: PhysicalConstant
has quantity kind: DimensionlessRatio
informative reference: http://physics.nist.gov/cuu/Constants/bibliography.html
quantity value: Value for electron magnetic moment to Bohr magneton ratio

electron magnetic moment to nuclear magneton ratio
type: PhysicalConstant
has quantity kind: DimensionlessRatio
informative reference: http://physics.nist.gov/cuu/Constants/bibliography.html
quantity value: Value for electron magnetic moment to nuclear magneton ratio

Electron Mass
type: PhysicalConstant
has quantity kind: Mass
latex symbol: $m_e$
quantity value: Value for electron mass
ucum code: [m_e]

electron mass energy equivalent
type: PhysicalConstant
has quantity kind: Energy
informative reference: http://physics.nist.gov/cuu/Constants/bibliography.html
quantity value: Value for electron mass energy equivalent

electron mass energy equivalent in MeV
type: PhysicalConstant
has quantity kind: Energy
informative reference: http://physics.nist.gov/cuu/Constants/bibliography.html
quantity value: Value for electron mass energy equivalent in MeV

electron mass in atomic mass unit
type: PhysicalConstant
has quantity kind: Mass
informative reference: http://physics.nist.gov/cuu/Constants/bibliography.html
quantity value: Electron Mass (amu)

electron molar mass
type: PhysicalConstant
has quantity kind: MolarMass
informative reference: http://physics.nist.gov/cuu/Constants/bibliography.html
quantity value: Value for electron molar mass

electron-muon magnetic moment ratio
type: PhysicalConstant
has quantity kind: DimensionlessRatio
informative reference: http://physics.nist.gov/cuu/Constants/bibliography.html
quantity value: Value for electron-muon magnetic moment ratio

electron-muon mass ratio
type: PhysicalConstant
has quantity kind: DimensionlessRatio
informative reference: http://physics.nist.gov/cuu/Constants/bibliography.html
quantity value: Value for electron-muon mass ratio

electron-neutron magnetic moment ratio
type: PhysicalConstant
has quantity kind: DimensionlessRatio
informative reference: http://physics.nist.gov/cuu/Constants/bibliography.html
quantity value: Value for electron-neutron magnetic moment ratio

electron-neutron mass ratio
type: PhysicalConstant
has quantity kind: DimensionlessRatio
informative reference: http://physics.nist.gov/cuu/Constants/bibliography.html
quantity value: Value for electron-neutron mass ratio

electron-proton magnetic moment ratio
type: PhysicalConstant
has quantity kind: DimensionlessRatio
informative reference: http://physics.nist.gov/cuu/Constants/bibliography.html
quantity value: Value for electron-proton magnetic moment ratio

electron-proton mass ratio
type: PhysicalConstant
has quantity kind: DimensionlessRatio
informative reference: http://physics.nist.gov/cuu/Constants/bibliography.html
quantity value: Value for electron-proton mass ratio

electron-tau mass ratio
type: PhysicalConstant
has quantity kind: DimensionlessRatio
informative reference: http://physics.nist.gov/cuu/Constants/bibliography.html
quantity value: Value for electron-tau mass ratio

electron to alpha particle mass ratio
type: PhysicalConstant
has quantity kind: DimensionlessRatio
informative reference: http://physics.nist.gov/cuu/Constants/bibliography.html
quantity value: Value for electron to alpha particle mass ratio

electron to shielded helion magnetic moment ratio
type: PhysicalConstant
has quantity kind: DimensionlessRatio
informative reference: http://physics.nist.gov/cuu/Constants/bibliography.html
quantity value: Value for electron to shielded helion magnetic moment ratio

electron to shielded proton magnetic moment ratio
type: PhysicalConstant
has quantity kind: DimensionlessRatio
informative reference: http://physics.nist.gov/cuu/Constants/bibliography.html
quantity value: Value for electron to shielded proton magnetic moment ratio

electron volt-atomic mass unit relationship
type: PhysicalConstant
has quantity kind: Mass
informative reference: http://physics.nist.gov/cuu/Constants/bibliography.html
quantity value: Value for electron volt-atomic mass unit relationship

electron volt-hartree relationship
type: PhysicalConstant
has quantity kind: Energy
informative reference: http://physics.nist.gov/cuu/Constants/bibliography.html
quantity value: Value for electron volt-hartree relationship

electron volt-hertz relationship
type: PhysicalConstant
has quantity kind: Frequency
informative reference: http://physics.nist.gov/cuu/Constants/bibliography.html
quantity value: Value for electron volt-hertz relationship

electron volt-inverse meter relationship
type: PhysicalConstant
has quantity kind: InverseLength
informative reference: http://physics.nist.gov/cuu/Constants/bibliography.html
quantity value: Value for electron volt-inverse meter relationship
label: electron volt-inverse metre relationship

electron volt-joule relationship
type: PhysicalConstant
has quantity kind: Energy
informative reference: http://physics.nist.gov/cuu/Constants/bibliography.html
quantity value: Value for electron volt-joule relationship

electron volt-kelvin relationship
type: PhysicalConstant
has quantity kind: ThermodynamicTemperature
informative reference: http://physics.nist.gov/cuu/Constants/bibliography.html
quantity value: Value for electron volt-kelvin relationship

electron volt-kilogram relationship
type: PhysicalConstant
has quantity kind: Mass
informative reference: http://physics.nist.gov/cuu/Constants/bibliography.html
quantity value: Value for electron volt-kilogram relationship

Elementary Charge
type: PhysicalConstant
dbpedia match: http://dbpedia.org/resource/Elementary_charge
exact match: atomic unit of charge
has quantity kind: ElectricCharge
informative reference: http://physics.nist.gov/cuu/Constants/bibliography.html
informative reference: https://en.wikipedia.org/wiki/Elementary_charge
iso normative reference: http://www.iso.org/iso/catalogue_detail
plain text description: The "Elementary Charge" is the electric charge carried by a single proton, or equivalently, the negation (opposite) of the electric charge carried by a single electron.
quantity value: Value for elementary charge
si exact match: ElementaryCharge
symbol: e
ucum code: [e]

elementary charge over h
type: PhysicalConstant
has quantity kind: ElectricCurrentPerEnergy
informative reference: http://physics.nist.gov/cuu/Constants/bibliography.html
quantity value: Value for elementary charge over h

Faraday constant
type: PhysicalConstant
description: The $\textit{Faraday Constant}$ is a constant equal to the product of electrical elementary charge and Avogadro constant; this is approximately $9.64853321233100184 \times 10^{4}\ C/mol$.
abbreviation: c mol^{-1}
applicable unit: C-PER-MOL
dbpedia match: http://dbpedia.org/resource/Faraday_constant
has dimension vector: A-1E1L0I0M0H0T1D0
has quantity kind: ElectricChargePerAmountOfSubstance
iec61360 code: 0112/2///62720#UAD052
informative reference: http://physics.nist.gov/cuu/Constants/bibliography.html
informative reference: https://cdd.iec.ch/cdd/iec62720/iec62720.nsf/ListsOfUnitsAllVersions/0112-2---62720%23UAD052
informative reference: https://en.wikipedia.org/wiki/Faraday_constant
iso normative reference: http://www.iso.org/iso/catalogue_detail
latex definition: $F = N_A e$, where $N_A$ is the Avogadro constant and $e$ is the elementary charge.
latex symbol: $F$
normative reference: http://www.iso.org/iso/catalogue_detail
plain text description: Physikalische Konstante, gleich dem Produkt aus elektrischer Elementarladung und Avogadro-Konstante; sie beträgt annähernd 96 485,3 C/mol @de
quantity value: Value for Faraday constant
symbol: 0173-1#Z4-BAJ422#001

Fermi coupling constant
type: PhysicalConstant
has quantity kind: InverseSquareEnergy
informative reference: http://physics.nist.gov/cuu/Constants/bibliography.html
quantity value: Value for Fermi coupling constant

Fine-Structure Constant
type: PhysicalConstant
description: The $\textit{Fine-structure Constant}$ is a fundamental physical constant, namely the coupling constant characterizing the strength of the electromagnetic interaction.
applicable unit: UNITLESS
dbpedia match: http://dbpedia.org/resource/Fine-structure_constant
has quantity kind: DimensionlessRatio
informative reference: http://physics.nist.gov/cuu/Constants/bibliography.html
informative reference: https://en.wikipedia.org/wiki/Fine-structure_constant
iso normative reference: http://www.iso.org/iso/catalogue_detail
latex definition: $a = \frac{e^2}{4\pi\varepsilon_0\hbar c_0}$, where $e$ is the elementary charge, $\varepsilon_0$ is the electric constant, item $\hbar$ is the reduced Planck constant, and $c_0$ is the speed of light in vacuum.
latex symbol: $a$
normative reference: http://www.iso.org/iso/catalogue_detail
quantity value: Value for fine-structure constant

first radiation constant
type: PhysicalConstant
description: The constant $\textit{First Radiation Constant}$ is defined in Planck's radiation law about the dependence of the spectral density of various radiation variables on the wavelength of the electromagnetic radiation and the absolute temperature of the black emitter. This is composed of the product of twice $Pi$ times Planck's quantum of action multiplied by the square of the velocity of light.
has dimension vector: A0E0L4I0M1H0T-3D0
has quantity kind: PowerArea
iec61360 code: 0112/2///62720#UAD053
informative reference: http://physics.nist.gov/cuu/Constants/bibliography.html
informative reference: https://cdd.iec.ch/cdd/iec62720/iec62720.nsf/ListsOfUnitsAllVersions/0112-2---62720%23UAD053
plain text description: Konstante im Planckschen Strahlungsgesetz über die Abhängigkeit der spektralen Dichte verschiedener Strahlungsgrößen von der Wellenlänge der elektromagnetischen Strahlung und der absoluten Temperatur beim schwarzen Strahler, welche sich zusammensetzt aus dem Produkt zwei Pi mal Plancksches Wirkungsquantum mal dem Quadrat der Lichtgeschwindigkeit @de
quantity value: Value for first radiation constant
symbol: 0173-1#Z4-BAJ455#001

first radiation constant for spectral radiance
type: PhysicalConstant
has quantity kind: PowerAreaPerSolidAngle
informative reference: http://physics.nist.gov/cuu/Constants/bibliography.html
quantity value: Value for first radiation constant for spectral radiance

Gravitational constant
type: PhysicalConstant
description: The $\textit{Gravitational Constant}$ (also known as the universal gravitational constant, is the Newtonian constant of gravitation, or the Cavendish gravitational constant). Denoted by the letter $G$, it is an empirical physical constant involved in the calculation of gravitational effects in Sir Isaac Newton's law of universal gravitation and in Albert Einstein's general theory of relativity.
applicable unit: N-M2-PER-KiloGM2
has dimension vector: A0E0L3I0M1H0T-2D0
has quantity kind: GravitationalAttraction
iec61360 code: 0112/2///62720#UAD059
informative reference: https://cdd.iec.ch/cdd/iec62720/iec62720.nsf/ListsOfUnitsAllVersions/0112-2---62720%23UAD059
informative reference: https://en.wikipedia.org/wiki/Gravitational_constant
plain text description: Empirisch ermittelte Naturkonstante, die bei bekanntem Mittelpunktsabstand zweier kugelsymmetrischer Körper deren gegenseitige Massenanziehungskraft bestimmt @de
quantity value: Value for gravitational constant
symbol: 0173-1#Z4-BAJ474#002
ucum code: [G]

hartree-atomic mass unit relationship
type: PhysicalConstant
has quantity kind: Mass
informative reference: http://physics.nist.gov/cuu/Constants/bibliography.html
quantity value: Value for hartree-atomic mass unit relationship

hartree-electron volt relationship
type: PhysicalConstant
has quantity kind: Energy
informative reference: http://physics.nist.gov/cuu/Constants/bibliography.html
quantity value: Value for hartree-electron volt relationship

Hartree Energy
type: PhysicalConstant
description: The constant $\textit{Hartree Energy}$ (symbol: $E_h$ or $Ha$), also known as the $\textit{Hartree}$, is the atomic unit of energy. The hartree energy is equal to the absolute value of the electric potential energy of the hydrogen atom in its ground state. The energy of the electron in an H-atom in its ground state is $-E_H$, where $E_H= 2 R_\infty \cdot hc_0$. The 2006 CODATA recommended value was $E_H = 4.35974394(22)\ \times 10^{-18}\ J = 27.21138386(68)\ eV$.
dbpedia match: http://dbpedia.org/resource/Hartree
has quantity kind: Energy
informative reference: http://physics.nist.gov/cuu/Constants/bibliography.html
iso normative reference: http://www.iso.org/iso/catalogue_detail
latex definition: $E_H= \frac{e^2}{4\pi \varepsilon_0 a_0 }$, where $e$ is the elementary charge, $\varepsilon_0$ is the electric constant, and $a_0$ is the Bohr radius.
latex symbol: $E_h$
quantity value: Value for Hartree energy

Hartree energy in eV
type: PhysicalConstant
has quantity kind: Energy
informative reference: http://physics.nist.gov/cuu/Constants/bibliography.html
quantity value: Value for Hartree energy in eV

hartree-hertz relationship
type: PhysicalConstant
has quantity kind: Frequency
informative reference: http://physics.nist.gov/cuu/Constants/bibliography.html
quantity value: Value for hartree-hertz relationship

hartree-inverse meter relationship
type: PhysicalConstant
has quantity kind: InverseLength
informative reference: http://physics.nist.gov/cuu/Constants/bibliography.html
quantity value: Value for hartree-inverse meter relationship
label: hartree-inverse metre relationship

hartree-joule relationship
type: PhysicalConstant
has quantity kind: Energy
informative reference: http://physics.nist.gov/cuu/Constants/bibliography.html
quantity value: Value for hartree-joule relationship

hartree-kelvin relationship
type: PhysicalConstant
has quantity kind: ThermodynamicTemperature
informative reference: http://physics.nist.gov/cuu/Constants/bibliography.html
quantity value: Value for hartree-kelvin relationship

hartree-kilogram relationship
type: PhysicalConstant
has quantity kind: Mass
informative reference: http://physics.nist.gov/cuu/Constants/bibliography.html
quantity value: Value for hartree-kilogram relationship

helion-electron mass ratio
type: PhysicalConstant
has quantity kind: DimensionlessRatio
informative reference: http://physics.nist.gov/cuu/Constants/bibliography.html
quantity value: Value for helion-electron mass ratio

helion mass
type: PhysicalConstant
has quantity kind: Mass
informative reference: http://physics.nist.gov/cuu/Constants/bibliography.html
quantity value: Value for helion mass

helion mass energy equivalent
type: PhysicalConstant
has quantity kind: Energy
informative reference: http://physics.nist.gov/cuu/Constants/bibliography.html
quantity value: Value for helion mass energy equivalent

helion mass energy equivalent in MeV
type: PhysicalConstant
has quantity kind: Energy
informative reference: http://physics.nist.gov/cuu/Constants/bibliography.html
quantity value: Value for helion mass energy equivalent in MeV

helion mass in atomic mass unit
type: PhysicalConstant
has quantity kind: Mass
informative reference: http://physics.nist.gov/cuu/Constants/bibliography.html
quantity value: Helion Mass (amu)

helion molar mass
type: PhysicalConstant
has quantity kind: MolarMass
informative reference: http://physics.nist.gov/cuu/Constants/bibliography.html
quantity value: Value for helion molar mass

helion-proton mass ratio
type: PhysicalConstant
has quantity kind: DimensionlessRatio
informative reference: http://physics.nist.gov/cuu/Constants/bibliography.html
quantity value: Value for helion-proton mass ratio

hertz-atomic mass unit relationship
type: PhysicalConstant
has quantity kind: Mass
informative reference: http://physics.nist.gov/cuu/Constants/bibliography.html
quantity value: Value for hertz-atomic mass unit relationship

hertz-electron volt relationship
type: PhysicalConstant
has quantity kind: Energy
informative reference: http://physics.nist.gov/cuu/Constants/bibliography.html
quantity value: Value for hertz-electron volt relationship

hertz-hartree relationship
type: PhysicalConstant
has quantity kind: Energy
informative reference: http://physics.nist.gov/cuu/Constants/bibliography.html
quantity value: Value for hertz-hartree relationship

hertz-inverse meter relationship
type: PhysicalConstant
exact constant: true
has quantity kind: InverseLength
informative reference: http://physics.nist.gov/cuu/Constants/bibliography.html
quantity value: Value for hertz-inverse meter relationship
label: hertz-inverse metre relationship

hertz-joule relationship
type: PhysicalConstant
has quantity kind: Energy
informative reference: http://physics.nist.gov/cuu/Constants/bibliography.html
quantity value: Value for hertz-joule relationship

hertz-kelvin relationship
type: PhysicalConstant
has quantity kind: ThermodynamicTemperature
informative reference: http://physics.nist.gov/cuu/Constants/bibliography.html
quantity value: Value for hertz-kelvin relationship

hertz-kilogram relationship
type: PhysicalConstant
has quantity kind: Mass
informative reference: http://physics.nist.gov/cuu/Constants/bibliography.html
quantity value: Value for hertz-kilogram relationship

inverse fine-structure constant
type: PhysicalConstant
has quantity kind: DimensionlessRatio
informative reference: http://physics.nist.gov/cuu/Constants/bibliography.html
quantity value: Value for inverse fine-structure constant

inverse meter-atomic mass unit relationship
type: PhysicalConstant
has quantity kind: Mass
informative reference: http://physics.nist.gov/cuu/Constants/bibliography.html
quantity value: Value for inverse meter-atomic mass unit relationship
label: inverse metre-atomic mass unit relationship

inverse meter-electron volt relationship
type: PhysicalConstant
has quantity kind: Energy
informative reference: http://physics.nist.gov/cuu/Constants/bibliography.html
quantity value: Value for inverse meter-electron volt relationship
label: inverse metre-electron volt relationship

inverse meter-hartree relationship
type: PhysicalConstant
has quantity kind: Energy
informative reference: http://physics.nist.gov/cuu/Constants/bibliography.html
quantity value: Value for inverse meter-hartree relationship
label: inverse metre-hartree relationship

inverse meter-hertz relationship
type: PhysicalConstant
exact constant: true
has quantity kind: Frequency
informative reference: http://physics.nist.gov/cuu/Constants/bibliography.html
quantity value: Value for inverse meter-hertz relationship
label: inverse metre-hertz relationship

inverse meter-joule relationship
type: PhysicalConstant
has quantity kind: Energy
informative reference: http://physics.nist.gov/cuu/Constants/bibliography.html
quantity value: Value for inverse meter-joule relationship
label: inverse metre-joule relationship

inverse meter-kelvin relationship
type: PhysicalConstant
has quantity kind: ThermodynamicTemperature
informative reference: http://physics.nist.gov/cuu/Constants/bibliography.html
quantity value: Value for inverse meter-kelvin relationship
label: inverse metre-kelvin relationship

inverse meter-kilogram relationship
type: PhysicalConstant
has quantity kind: Mass
informative reference: http://physics.nist.gov/cuu/Constants/bibliography.html
quantity value: Value for inverse meter-kilogram relationship
label: inverse metre-kilogram relationship

inverse of conductance quantum
type: PhysicalConstant
has quantity kind: Resistance
informative reference: http://physics.nist.gov/cuu/Constants/bibliography.html
quantity value: Value for inverse of conductance quantum

Josephson Constant
type: PhysicalConstant
description: The constant $\textit{Josephson Constant}$ is a proportionality factor between voltage and frequency of an alternating current corresponding to the product of two elementary charges $e$ and Planck's action quantum $h$.
applicable unit: PER-WB
dbpedia match: http://dbpedia.org/resource/Magnetic_flux_quantum
has dimension vector: A0E1L-2I0M-1H0T2D0
has quantity kind: InverseMagneticFlux
iec61360 code: 0112/2///62720#UAD069
informative reference: http://physics.nist.gov/cuu/Constants/bibliography.html
informative reference: https://cdd.iec.ch/cdd/iec62720/iec62720.nsf/ListsOfUnitsAllVersions/0112-2---62720%23UAD069
informative reference: https://en.wikipedia.org/wiki/Magnetic_flux_quantum
iso normative reference: http://www.iso.org/iso/catalogue_detail
latex definition: $K_J = \frac{1}{\Phi_0}$, where $\Phi_0$ is the magnetic flux quantum.
latex symbol: $K_J$
normative reference: http://www.iso.org/iso/catalogue_detail
plain text description: Proportionalitätsfaktor zwischen elektrischer Spannung und Frequenz beim Wechselstrom entsprechend dem Produkt aus zwei Elementarladungen e und Planckschen Wirkungsquantum h @de
quantity value: Value for Josephson constant
symbol: 0173-1#Z4-BAJ452#001

joule-atomic mass unit relationship
type: PhysicalConstant
has quantity kind: Mass
informative reference: http://physics.nist.gov/cuu/Constants/bibliography.html
quantity value: Value for joule-atomic mass unit relationship

joule-electron volt relationship
type: PhysicalConstant
has quantity kind: Energy
informative reference: http://physics.nist.gov/cuu/Constants/bibliography.html
quantity value: Value for joule-electron volt relationship

joule-hartree relationship
type: PhysicalConstant
has quantity kind: Energy
informative reference: http://physics.nist.gov/cuu/Constants/bibliography.html
quantity value: Value for joule-hartree relationship

joule-hertz relationship
type: PhysicalConstant
has quantity kind: Frequency
informative reference: http://physics.nist.gov/cuu/Constants/bibliography.html
quantity value: Value for joule-hertz relationship

joule-inverse meter relationship
type: PhysicalConstant
has quantity kind: InverseLength
informative reference: http://physics.nist.gov/cuu/Constants/bibliography.html
quantity value: Value for joule-inverse meter relationship
label: joule-inverse metre relationship

joule-kelvin relationship
type: PhysicalConstant
has quantity kind: ThermodynamicTemperature
informative reference: http://physics.nist.gov/cuu/Constants/bibliography.html
quantity value: Value for joule-kelvin relationship

joule-kilogram relationship
type: PhysicalConstant
exact constant: true
has quantity kind: Mass
informative reference: http://physics.nist.gov/cuu/Constants/bibliography.html
quantity value: Value for joule-kilogram relationship

kelvin-atomic mass unit relationship
type: PhysicalConstant
has quantity kind: Mass
informative reference: http://physics.nist.gov/cuu/Constants/bibliography.html
quantity value: Value for kelvin-atomic mass unit relationship

kelvin-electron volt relationship
type: PhysicalConstant
has quantity kind: Energy
informative reference: http://physics.nist.gov/cuu/Constants/bibliography.html
quantity value: Value for kelvin-electron volt relationship

kelvin-hartree relationship
type: PhysicalConstant
has quantity kind: Energy
informative reference: http://physics.nist.gov/cuu/Constants/bibliography.html
quantity value: Value for kelvin-hartree relationship

kelvin-hertz relationship
type: PhysicalConstant
has quantity kind: Frequency
informative reference: http://physics.nist.gov/cuu/Constants/bibliography.html
quantity value: Value for kelvin-hertz relationship

kelvin-inverse meter relationship
type: PhysicalConstant
has quantity kind: InverseLength
informative reference: http://physics.nist.gov/cuu/Constants/bibliography.html
quantity value: Value for kelvin-inverse meter relationship
label: kelvin-inverse metre relationship

kelvin-joule relationship
type: PhysicalConstant
has quantity kind: Energy
informative reference: http://physics.nist.gov/cuu/Constants/bibliography.html
quantity value: Value for kelvin-joule relationship

kelvin-kilogram relationship
type: PhysicalConstant
has quantity kind: Mass
informative reference: http://physics.nist.gov/cuu/Constants/bibliography.html
quantity value: Value for kelvin-kilogram relationship

kilogram-atomic mass unit relationship
type: PhysicalConstant
has quantity kind: Mass
informative reference: http://physics.nist.gov/cuu/Constants/bibliography.html
quantity value: Value for kilogram-atomic mass unit relationship

kilogram-electron volt relationship
type: PhysicalConstant
has quantity kind: Energy
informative reference: http://physics.nist.gov/cuu/Constants/bibliography.html
quantity value: Value for kilogram-electron volt relationship

kilogram-hartree relationship
type: PhysicalConstant
has quantity kind: Energy
informative reference: http://physics.nist.gov/cuu/Constants/bibliography.html
quantity value: Value for kilogram-hartree relationship

kilogram-hertz relationship
type: PhysicalConstant
has quantity kind: Frequency
informative reference: http://physics.nist.gov/cuu/Constants/bibliography.html
quantity value: Value for kilogram-hertz relationship

kilogram-inverse meter relationship
type: PhysicalConstant
has quantity kind: InverseLength
informative reference: http://physics.nist.gov/cuu/Constants/bibliography.html
quantity value: Value for kilogram-inverse meter relationship
label: kilogram-inverse metre relationship

Kilogram-Joule Relationship
type: PhysicalConstant
exact constant: true
has quantity kind: Energy
informative reference: http://physics.nist.gov/cuu/Constants/bibliography.html
quantity value: Value for kilogram-joule relationship

kilogram-kelvin relationship
type: PhysicalConstant
has quantity kind: ThermodynamicTemperature
informative reference: http://physics.nist.gov/cuu/Constants/bibliography.html
quantity value: Value for kilogram-kelvin relationship

lattice parameter of silicon
type: PhysicalConstant
has quantity kind: Length
informative reference: http://physics.nist.gov/cuu/Constants/bibliography.html
quantity value: Value for lattice parameter of silicon
label: lattice parametre of silicon

lattice spacing of silicon
type: PhysicalConstant
has quantity kind: Length
informative reference: http://physics.nist.gov/cuu/Constants/bibliography.html
quantity value: Value for lattice spacing of silicon

Loschmidt constant 273.15 K 101.325 kPa
type: PhysicalConstant
has quantity kind: NumberDensity
informative reference: http://physics.nist.gov/cuu/Constants/bibliography.html
quantity value: Value for Loschmidt constant 273.15 K 101.325 kPa

Magnetic Constant
type: PhysicalConstant
description: The constant $\textit{Magentic Constant}$, also known as $\textit{Permeability of Vacuum}$, is a scalar constant $\mu_0$ such that, in a vacuum the product with the magnetic field vector, $\overrightarrow{H}$ is equal to the magnetic flux density vector, $\overrightarrow{B}$.
abbreviation: magnetic-constant
applicable unit: H-PER-M
dbpedia match: http://dbpedia.org/resource/Vacuum_permeability
exact constant: true
exact match: Permeability of Vacuum
has quantity kind: Permittivity
informative reference: http://physics.nist.gov/cuu/Constants/bibliography.html
informative reference: http://www.electropedia.org/iev/iev.nsf/display
informative reference: http://www.iso.org/iso/home/store/catalogue_tc/catalogue_detail.htm
latex definition: $\mu_0 = \frac{\overrightarrow{B}}{\overrightarrow{H}}$, where $\overrightarrow{B}$ is the B-Filed magnetic vector, and $\overrightarrow{H}$ is the H-Filed magnetic vector. The value of $\mu_0$ is $\approx 1.256637e-6\,H/M$.
latex symbol: $\mu_0$
quantity value: Value for magnetic constant

magnetic flux quantum
type: PhysicalConstant
description: The constant $\textit{Magnetic Flux Quantum}$ is the quantum of magnetic flux passing through a superconductor.
dbpedia match: http://dbpedia.org/resource/Magnetic_flux_quantum
has quantity kind: MagneticFlux
informative reference: http://physics.nist.gov/cuu/Constants/bibliography.html
informative reference: https://en.wikipedia.org/wiki/Magnetic_flux_quantum
iso normative reference: http://www.iso.org/iso/catalogue_detail
latex definition: $\Phi_0 = \frac{h}{2e}$, where $h$ is the Planck constant and $e$ is the elementary charge.
latex symbol: $\Phi_0$
normative reference: http://www.iso.org/iso/catalogue_detail
quantity value: Value for magnetic flux quantum

Mo x unit
type: PhysicalConstant
has quantity kind: Length
informative reference: http://physics.nist.gov/cuu/Constants/bibliography.html
quantity value: Value for Mo x unit

molar gas constant
type: PhysicalConstant
description: The constant $\textit{Molar Gas Constant}$, also known as the gas constant, universal, or ideal gas constant, denoted by the symbol $R$, is a physical constant which is featured in many fundamental equations in the physical sciences, such as the ideal gas law and the Nernst equation. It is equivalent to the Boltzmann constant, but expressed in units of energy (i.e. the pressure-volume product) per temperature increment per mole (rather than energy per temperature increment per particle).
abbreviation: j-mol^{-1}-k^{-1}
applicable unit: J-PER-MOL-K
dbpedia match: http://dbpedia.org/resource/Gas_constant
exact match: Universal Gas Constant
has dimension vector: A-1E0L2I0M1H-1T-2D0
has quantity kind: MolarHeatCapacity
informative reference: http://physics.nist.gov/cuu/Constants/bibliography.html
informative reference: https://en.wikipedia.org/wiki/Gas_constant
iso normative reference: http://www.iso.org/iso/catalogue_detail
latex definition: $pV_m = RT$, where $p$ is pressure, $V_m$ is molar volume, and $T$ is thermodynamic temperature.
latex symbol: $R$
normative reference: http://www.iso.org/iso/catalogue_detail
quantity value: Value for molar gas constant

molar mass constant
type: PhysicalConstant
dbpedia match: http://dbpedia.org/resource/Molar_mass_constant
exact constant: true
has quantity kind: MolarMass
informative reference: http://physics.nist.gov/cuu/Constants/bibliography.html
quantity value: Value for molar mass constant

molar mass of carbon-12
type: PhysicalConstant
exact constant: true
has quantity kind: MolarMass
informative reference: http://physics.nist.gov/cuu/Constants/bibliography.html
quantity value: Value for molar mass of carbon-12

molar Planck constant
type: PhysicalConstant
has quantity kind: MolarAngularMomentum
informative reference: http://physics.nist.gov/cuu/Constants/bibliography.html
quantity value: Value for molar Planck constant

molar Planck constant times c
type: PhysicalConstant
has quantity kind: LengthMolarEnergy
informative reference: http://physics.nist.gov/cuu/Constants/bibliography.html
quantity value: Value for molar Planck constant times c

molar volume of ideal gas 273.15 K 100 kPa
type: PhysicalConstant
is replaced by: molar volume of ideal gas 273.15 K 100 kPa
deprecated: true
has quantity kind: MolarVolume
informative reference: http://physics.nist.gov/cuu/Constants/bibliography.html

molar volume of ideal gas 273.15 K 100 kPa
type: PhysicalConstant
has quantity kind: MolarVolume
informative reference: http://physics.nist.gov/cuu/Constants/bibliography.html

molar volume of ideal gas 273.15 K 101.325 kPa
type: PhysicalConstant
deprecated: true
has quantity kind: MolarVolume
informative reference: http://physics.nist.gov/cuu/Constants/bibliography.html

molar volume of ideal gas 273.15 K 101.325 kPa
type: PhysicalConstant
has quantity kind: MolarVolume
informative reference: http://physics.nist.gov/cuu/Constants/bibliography.html

molar volume of silicon
type: PhysicalConstant
has quantity kind: MolarVolume
informative reference: http://physics.nist.gov/cuu/Constants/bibliography.html
quantity value: Value for molar volume of silicon

muon Compton wavelength
type: PhysicalConstant
has quantity kind: Length
informative reference: http://physics.nist.gov/cuu/Constants/bibliography.html
quantity value: Value for muon Compton wavelength

muon Compton wavelength over 2 pi
type: PhysicalConstant
has quantity kind: Length
informative reference: http://physics.nist.gov/cuu/Constants/bibliography.html
quantity value: Value for muon Compton wavelength over 2 pi

muon-electron mass ratio
type: PhysicalConstant
has quantity kind: DimensionlessRatio
informative reference: http://physics.nist.gov/cuu/Constants/bibliography.html
quantity value: Value for muon-electron mass ratio

muon g factor
type: PhysicalConstant
has quantity kind: DimensionlessRatio
informative reference: http://physics.nist.gov/cuu/Constants/bibliography.html
quantity value: Value for muon g factor

muon magnetic moment
type: PhysicalConstant
has quantity kind: MagneticDipoleMoment
informative reference: http://physics.nist.gov/cuu/Constants/bibliography.html
quantity value: Value for muon magnetic moment

muon magnetic moment anomaly
type: PhysicalConstant
has quantity kind: DimensionlessRatio
informative reference: http://physics.nist.gov/cuu/Constants/bibliography.html
quantity value: Value for muon magnetic moment anomaly

muon magnetic moment to Bohr magneton ratio
type: PhysicalConstant
has quantity kind: DimensionlessRatio
informative reference: http://physics.nist.gov/cuu/Constants/bibliography.html
quantity value: Value for muon magnetic moment to Bohr magneton ratio

muon magnetic moment to nuclear magneton ratio
type: PhysicalConstant
has quantity kind: DimensionlessRatio
informative reference: http://physics.nist.gov/cuu/Constants/bibliography.html
quantity value: Value for muon magnetic moment to nuclear magneton ratio

muon mass
type: PhysicalConstant
has quantity kind: Mass
informative reference: http://physics.nist.gov/cuu/Constants/bibliography.html
quantity value: Value for muon mass

muon mass energy equivalent
type: PhysicalConstant
has quantity kind: Energy
informative reference: http://physics.nist.gov/cuu/Constants/bibliography.html
quantity value: Value for muon mass energy equivalent

muon mass energy equivalent in MeV
type: PhysicalConstant
has quantity kind: Energy
informative reference: http://physics.nist.gov/cuu/Constants/bibliography.html
quantity value: Value for muon mass energy equivalent in MeV

muon mass in atomic mass unit
type: PhysicalConstant
has quantity kind: Mass
informative reference: http://physics.nist.gov/cuu/Constants/bibliography.html
quantity value: Muon Mass (amu)

muon molar mass
type: PhysicalConstant
has quantity kind: MolarMass
informative reference: http://physics.nist.gov/cuu/Constants/bibliography.html
quantity value: Value for muon molar mass

muon-neutron mass ratio
type: PhysicalConstant
has quantity kind: DimensionlessRatio
informative reference: http://physics.nist.gov/cuu/Constants/bibliography.html
quantity value: Value for muon-neutron mass ratio

muon-proton magnetic moment ratio
type: PhysicalConstant
has quantity kind: DimensionlessRatio
informative reference: http://physics.nist.gov/cuu/Constants/bibliography.html
quantity value: Value for muon-proton magnetic moment ratio

muon-proton mass ratio
type: PhysicalConstant
has quantity kind: DimensionlessRatio
informative reference: http://physics.nist.gov/cuu/Constants/bibliography.html
quantity value: Value for muon-proton mass ratio

muon-tau mass ratio
type: PhysicalConstant
has quantity kind: DimensionlessRatio
informative reference: http://physics.nist.gov/cuu/Constants/bibliography.html
quantity value: Value for muon-tau mass ratio

natural unit of action
type: PhysicalConstant
has quantity kind: Action
informative reference: http://physics.nist.gov/cuu/Constants/bibliography.html
quantity value: Value for natural unit of action

natural unit of action in eV s
type: PhysicalConstant
has quantity kind: Action
informative reference: http://physics.nist.gov/cuu/Constants/bibliography.html
quantity value: Value for natural unit of action in eV s

natural unit of energy
type: PhysicalConstant
has quantity kind: Energy
informative reference: http://physics.nist.gov/cuu/Constants/bibliography.html
quantity value: Value for natural unit of energy

natural unit of energy in MeV
type: PhysicalConstant
has quantity kind: Energy
informative reference: http://physics.nist.gov/cuu/Constants/bibliography.html
quantity value: Value for natural unit of energy in MeV

natural unit of length
type: PhysicalConstant
has quantity kind: Length
informative reference: http://physics.nist.gov/cuu/Constants/bibliography.html
quantity value: Value for natural unit of length

natural unit of mass
type: PhysicalConstant
has quantity kind: Mass
informative reference: http://physics.nist.gov/cuu/Constants/bibliography.html
quantity value: Value for natural unit of mass

natural unit of momentum
type: PhysicalConstant
has quantity kind: LinearMomentum
informative reference: http://physics.nist.gov/cuu/Constants/bibliography.html
quantity value: Value for natural unit of momentum

natural unit of momentum in MeV PER c
type: PhysicalConstant
has quantity kind: LinearMomentum
informative reference: http://physics.nist.gov/cuu/Constants/bibliography.html
quantity value: Value for natural unit of momentum in MeV c^-1

natural unit of time
type: PhysicalConstant
has quantity kind: Time
informative reference: http://physics.nist.gov/cuu/Constants/bibliography.html
quantity value: Value for natural unit of time

natural unit of velocity
type: PhysicalConstant
exact constant: true
has quantity kind: LinearVelocity
informative reference: http://physics.nist.gov/cuu/Constants/bibliography.html
quantity value: Value for natural unit of velocity

neutron Compton wavelength
type: PhysicalConstant
has quantity kind: Length
informative reference: http://physics.nist.gov/cuu/Constants/bibliography.html
quantity value: Value for neutron Compton wavelength

neutron Compton wavelength over 2 pi
type: PhysicalConstant
has quantity kind: Length
informative reference: http://physics.nist.gov/cuu/Constants/bibliography.html
quantity value: Value for neutron Compton wavelength over 2 pi

neutron-electron magnetic moment ratio
type: PhysicalConstant
has quantity kind: DimensionlessRatio
informative reference: http://physics.nist.gov/cuu/Constants/bibliography.html
quantity value: Value for neutron-electron magnetic moment ratio

neutron-electron mass ratio
type: PhysicalConstant
has quantity kind: DimensionlessRatio
informative reference: http://physics.nist.gov/cuu/Constants/bibliography.html
quantity value: Value for neutron-electron mass ratio

neutron g factor
type: PhysicalConstant
has quantity kind: DimensionlessRatio
informative reference: http://physics.nist.gov/cuu/Constants/bibliography.html
quantity value: Value for neutron g factor

neutron gyromagnetic ratio
type: PhysicalConstant
has quantity kind: GyromagneticRatio
informative reference: http://physics.nist.gov/cuu/Constants/bibliography.html
quantity value: Value for neutron gyromagnetic ratio

neutron gyromagnetic ratio over 2 pi
type: PhysicalConstant
has quantity kind: GyromagneticRatio
informative reference: http://physics.nist.gov/cuu/Constants/bibliography.html
quantity value: Value for neutron gyromagnetic ratio over 2 pi

neutron magnetic moment
type: PhysicalConstant
dbpedia match: http://dbpedia.org/resource/Neutron_magnetic_moment
has quantity kind: MagneticDipoleMoment
informative reference: http://physics.nist.gov/cuu/Constants/bibliography.html
quantity value: Value for neutron magnetic moment

neutron magnetic moment to Bohr magneton ratio
type: PhysicalConstant
has quantity kind: DimensionlessRatio
informative reference: http://physics.nist.gov/cuu/Constants/bibliography.html
quantity value: Value for neutron magnetic moment to Bohr magneton ratio

neutron magnetic moment to nuclear magneton ratio
type: PhysicalConstant
has quantity kind: DimensionlessRatio
informative reference: http://physics.nist.gov/cuu/Constants/bibliography.html
quantity value: Value for neutron magnetic moment to nuclear magneton ratio

neutron mass
type: PhysicalConstant
has quantity kind: Mass
informative reference: http://physics.nist.gov/cuu/Constants/bibliography.html
quantity value: Value for neutron mass

neutron mass energy equivalent
type: PhysicalConstant
has quantity kind: Energy
informative reference: http://physics.nist.gov/cuu/Constants/bibliography.html
quantity value: Value for neutron mass energy equivalent

neutron mass energy equivalent in MeV
type: PhysicalConstant
has quantity kind: Energy
informative reference: http://physics.nist.gov/cuu/Constants/bibliography.html
quantity value: Value for neutron mass energy equivalent in MeV

neutron mass in atomic mass unit
type: PhysicalConstant
has quantity kind: Mass
informative reference: http://physics.nist.gov/cuu/Constants/bibliography.html
quantity value: Neutron Mass (amu)

neutron molar mass
type: PhysicalConstant
has quantity kind: MolarMass
informative reference: http://physics.nist.gov/cuu/Constants/bibliography.html
quantity value: Value for neutron molar mass

neutron-muon mass ratio
type: PhysicalConstant
has quantity kind: DimensionlessRatio
informative reference: http://physics.nist.gov/cuu/Constants/bibliography.html
quantity value: Value for neutron-muon mass ratio

neutron-proton magnetic moment ratio
type: PhysicalConstant
has quantity kind: DimensionlessRatio
informative reference: http://physics.nist.gov/cuu/Constants/bibliography.html
quantity value: Value for neutron-proton magnetic moment ratio

neutron-proton mass ratio
type: PhysicalConstant
has quantity kind: DimensionlessRatio
informative reference: http://physics.nist.gov/cuu/Constants/bibliography.html
quantity value: Value for neutron-proton mass ratio

neutron-tau mass ratio
type: PhysicalConstant
has quantity kind: DimensionlessRatio
informative reference: http://physics.nist.gov/cuu/Constants/bibliography.html
quantity value: Value for neutron-tau mass ratio

neutron to shielded proton magnetic moment ratio
type: PhysicalConstant
has quantity kind: DimensionlessRatio
informative reference: http://physics.nist.gov/cuu/Constants/bibliography.html
quantity value: Value for neutron to shielded proton magnetic moment ratio

Newtonian constant of gravitation
type: PhysicalConstant
dbpedia match: http://dbpedia.org/resource/Gravitational_constant
has quantity kind: GravitationalAttraction
informative reference: http://physics.nist.gov/cuu/Constants/bibliography.html
quantity value: Value for Newtonian constant of gravitation

Nuclear Magneton
type: PhysicalConstant
description: The constant $\textit{Nuclear Magneton}$ is the natural unit for expressing magnetic dipole moments of heavy particles such as nucleons and atomic nuclei.
applicable unit: J-PER-T
dbpedia match: http://dbpedia.org/resource/Nuclear_magneton
has quantity kind: MagneticDipoleMoment
informative reference: http://physics.nist.gov/cuu/Constants/bibliography.html
informative reference: https://en.wikipedia.org/wiki/Nuclear_magneton
iso normative reference: http://www.iso.org/iso/catalogue_detail
latex definition: $\mu_N = \frac{e\hbar}{2m_p}$, where $e$ is the elementary charge, $\hbar$ is the Planck constant, and $m_p$ is the rest mass of proton.
latex symbol: $\mu_N$
normative reference: http://www.iso.org/iso/catalogue_detail
quantity value: Value for nuclear magneton
related: Bohr Magneton

nuclear magneton in eV per T
type: PhysicalConstant
has quantity kind: MagneticDipoleMoment
informative reference: http://physics.nist.gov/cuu/Constants/bibliography.html
quantity value: Value for nuclear magneton in eV per T

nuclear magneton in inverse meters per tesla
type: PhysicalConstant
has quantity kind: MagneticReluctivity
informative reference: http://physics.nist.gov/cuu/Constants/bibliography.html
quantity value: Value for nuclear magneton in inverse meters per tesla
label: nuclear magneton in inverse metres per tesla

nuclear magneton in K per T
type: PhysicalConstant
has quantity kind: TemperaturePerMagneticFluxDensity
informative reference: http://physics.nist.gov/cuu/Constants/bibliography.html
quantity value: Value for nuclear magneton in K per T

nuclear magneton in MHz per T
type: PhysicalConstant
has quantity kind: ElectricChargePerMass
informative reference: http://physics.nist.gov/cuu/Constants/bibliography.html
quantity value: Value for nuclear magneton in MHz per T

Permittivity of Vacuum
type: PhysicalConstant
description: The constant $\textit{Permittivity of Vacuum}$, also known as the $\textit{electric constant}$ is a constant whose value is $\approx\,6.854188e-12\, farad\,per\,metre$. Sometimes also referred to as the $\textit{Permittivity of Free Space}$.
applicable unit: FARAD-PER-M
dbpedia match: http://dbpedia.org/resource/Permittivity
has quantity kind: Permittivity
informative reference: http://www.iso.org/iso/home/store/catalogue_tc/catalogue_detail.htm
latex definition: $\epsilon = \frac{\mathbf{D}}{\mathbf{E}}$, where $\mathbf{D}$ is electric flux density and $\mathbf{E}$ is electric field strength.
latex symbol: $\epsilon_0$
quantity value: Value for permittivity of vacuum
ucum code: [eps_0]

Pi
type: PhysicalConstant
description: The constant $\pi$ is the ratio of a circle's circumference to its diameter, commonly approximated as 3.14159.
applicable unit: UNITLESS
dbpedia match: http://dbpedia.org/resource/Pi
has quantity kind: Angle
informative reference: https://en.wikipedia.org/wiki/Pi
latex definition: $\pi = \frac{C}{d}$, where $C$ is the circumference of a circle and $d$ is the diameter of a circle.
latex symbol: $\pi$
quantity value: Value for Pi

Planck Constant
type: PhysicalConstant
description: The constant $\textit{Planck Constant}$ is a physical constant that is the quantum of action in quantum mechanics. The Planck constant was first described as the proportionality constant between the energy ($E$) of a photon and the frequency ($\nu$) of its associated electromagnetic wave.
applicable unit: J-SEC
dbpedia match: http://dbpedia.org/resource/Planck_constant
has dimension vector: A0E0L2I0M1H0T-1D0
has quantity kind: Action
informative reference: http://physics.nist.gov/cuu/Constants/bibliography.html
informative reference: https://en.wikipedia.org/wiki/Planck_constant
iso normative reference: http://www.iso.org/iso/catalogue_detail
latex definition: $E = h\nu = \frac{hc}{\lambda}$, where $E$ is energy, $\nu$ is frequency, $\lambda$ is wavelength, and $c$ is the speed of light.
latex symbol: $h$
quantity value: Value for Planck constant
si exact match: PlanckConstant
ucum code: [h]

Planck constant in eV s
type: PhysicalConstant
has quantity kind: Action
informative reference: http://physics.nist.gov/cuu/Constants/bibliography.html
quantity value: Value for Planck constant in eV s

Planck constant over 2 pi
type: PhysicalConstant
has quantity kind: Action
informative reference: http://physics.nist.gov/cuu/Constants/bibliography.html
quantity value: Value for Planck constant over 2 pi

Planck constant over 2 pi in eV s
type: PhysicalConstant
has quantity kind: Action
informative reference: http://physics.nist.gov/cuu/Constants/bibliography.html
quantity value: Value for Planck constant over 2 pi in eV s

Planck constant over 2 pi times c in MeV fm
type: PhysicalConstant
has quantity kind: LengthEnergy
informative reference: http://physics.nist.gov/cuu/Constants/bibliography.html

Planck length
type: PhysicalConstant
dbpedia match: http://dbpedia.org/resource/Planck_length
has quantity kind: Length
informative reference: http://physics.nist.gov/cuu/Constants/bibliography.html
quantity value: Value for Planck length

Planck mass
type: PhysicalConstant
dbpedia match: http://dbpedia.org/resource/Planck_mass
has quantity kind: Mass
informative reference: http://physics.nist.gov/cuu/Constants/bibliography.html
quantity value: Value for Planck mass

Planck mass energy equivalent in GeV
type: PhysicalConstant
has quantity kind: Energy
informative reference: http://physics.nist.gov/cuu/Constants/bibliography.html
quantity value: Value for Planck mass energy equivalent in GeV

Planck temperature
type: PhysicalConstant
dbpedia match: http://dbpedia.org/resource/Planck_temperature
has quantity kind: ThermodynamicTemperature
informative reference: http://physics.nist.gov/cuu/Constants/bibliography.html
quantity value: Value for Planck temperature

Planck time
type: PhysicalConstant
dbpedia match: http://dbpedia.org/resource/Planck_time
has quantity kind: Time
informative reference: http://physics.nist.gov/cuu/Constants/bibliography.html
quantity value: Value for Planck time

proton charge to mass quotient
type: PhysicalConstant
has quantity kind: ElectricChargePerMass
informative reference: http://physics.nist.gov/cuu/Constants/bibliography.html
quantity value: Value for proton charge to mass quotient

proton Compton wavelength
type: PhysicalConstant
has quantity kind: Length
informative reference: http://physics.nist.gov/cuu/Constants/bibliography.html
quantity value: Value for proton Compton wavelength

proton Compton wavelength over 2 pi
type: PhysicalConstant
has quantity kind: Length
informative reference: http://physics.nist.gov/cuu/Constants/bibliography.html
quantity value: Value for proton Compton wavelength over 2 pi

proton-electron mass ratio
type: PhysicalConstant
has quantity kind: DimensionlessRatio
informative reference: http://physics.nist.gov/cuu/Constants/bibliography.html
quantity value: Value for proton-electron mass ratio

proton g factor
type: PhysicalConstant
has quantity kind: DimensionlessRatio
informative reference: http://physics.nist.gov/cuu/Constants/bibliography.html
quantity value: Value for proton g factor

proton gyromagnetic ratio
type: PhysicalConstant
has quantity kind: GyromagneticRatio
informative reference: http://physics.nist.gov/cuu/Constants/bibliography.html
quantity value: Value for proton gyromagnetic ratio

proton gyromagnetic ratio over 2 pi
type: PhysicalConstant
has quantity kind: GyromagneticRatio
informative reference: http://physics.nist.gov/cuu/Constants/bibliography.html
quantity value: Value for proton gyromagnetic ratio over 2 pi

proton magnetic moment
type: PhysicalConstant
has quantity kind: MagneticDipoleMoment
informative reference: http://physics.nist.gov/cuu/Constants/bibliography.html
quantity value: Value for proton magnetic moment

proton magnetic moment to Bohr magneton ratio
type: PhysicalConstant
has quantity kind: DimensionlessRatio
informative reference: http://physics.nist.gov/cuu/Constants/bibliography.html
quantity value: Value for proton magnetic moment to Bohr magneton ratio

proton magnetic moment to nuclear magneton ratio
type: PhysicalConstant
has quantity kind: DimensionlessRatio
informative reference: http://physics.nist.gov/cuu/Constants/bibliography.html
quantity value: Value for proton magnetic moment to nuclear magneton ratio

proton mag. shielding correction
type: PhysicalConstant
has quantity kind: DimensionlessRatio
informative reference: http://physics.nist.gov/cuu/Constants/bibliography.html
quantity value: Value for proton magnetic shielding correction

proton mass
type: PhysicalConstant
has quantity kind: Mass
informative reference: http://physics.nist.gov/cuu/Constants/bibliography.html
quantity value: Value for proton mass
ucum code: [m_p]

proton mass energy equivalent
type: PhysicalConstant
has quantity kind: Energy
informative reference: http://physics.nist.gov/cuu/Constants/bibliography.html
quantity value: Value for proton mass energy equivalent

proton mass energy equivalent in MeV
type: PhysicalConstant
has quantity kind: Energy
informative reference: http://physics.nist.gov/cuu/Constants/bibliography.html
quantity value: Value for proton mass energy equivalent in MeV

proton mass in atomic mass unit
type: PhysicalConstant
has quantity kind: Mass
informative reference: http://physics.nist.gov/cuu/Constants/bibliography.html
quantity value: Proton Mass (amu)

proton molar mass
type: PhysicalConstant
has quantity kind: MolarMass
informative reference: http://physics.nist.gov/cuu/Constants/bibliography.html
quantity value: Value for proton molar mass

proton-muon mass ratio
type: PhysicalConstant
has quantity kind: DimensionlessRatio
informative reference: http://physics.nist.gov/cuu/Constants/bibliography.html
quantity value: Value for proton-muon mass ratio

proton-neutron magnetic moment ratio
type: PhysicalConstant
has quantity kind: DimensionlessRatio
informative reference: http://physics.nist.gov/cuu/Constants/bibliography.html
quantity value: Value for proton-neutron magnetic moment ratio

proton-neutron mass ratio
type: PhysicalConstant
has quantity kind: DimensionlessRatio
informative reference: http://physics.nist.gov/cuu/Constants/bibliography.html
quantity value: Value for proton-neutron mass ratio

proton rms charge radius
type: PhysicalConstant
has quantity kind: Length
informative reference: http://physics.nist.gov/cuu/Constants/bibliography.html
quantity value: Value for proton rms charge radius

proton-tau mass ratio
type: PhysicalConstant
has quantity kind: DimensionlessRatio
informative reference: http://physics.nist.gov/cuu/Constants/bibliography.html
quantity value: Value for proton-tau mass ratio

quantum of circulation
type: PhysicalConstant
has quantity kind: Circulation
informative reference: http://physics.nist.gov/cuu/Constants/bibliography.html
quantity value: Value for quantum of circulation

quantum of circulation times 2
type: PhysicalConstant
has quantity kind: Circulation
informative reference: http://physics.nist.gov/cuu/Constants/bibliography.html
quantity value: Value for quantum of circulation times 2

Reduced Planck Constant
type: PhysicalConstant
description: The $\textit{Reduced Planck Constant}$, or $\textit{Dirac Constant}$, is used in applications where frequency is expressed in terms of radians per second ($\textit{angular frequency}$) instead of cycles per second. In such cases a factor of $\pi$ is absorbed into the constant.
applicable unit: J-SEC
has quantity kind: Action
informative reference: https://en.wikipedia.org/wiki/Planck_constant
iso normative reference: http://www.iso.org/iso/catalogue_detail
latex definition: $\hbar = \frac{h}{2\pi}$, where $h$ is the Planck constant.
latex symbol: $\hbar$
quantity value: Value for Planck constant over 2 pi
broader: Planck Constant

Rydberg Constant
type: PhysicalConstant
description: The $\textit{Rydberg constant}$, named after the Swedish physicist Johannes Rydberg, is a physical constant relating to atomic spectra, in the science of spectroscopy.
applicable unit: PER-M
dbpedia match: http://dbpedia.org/resource/Rydberg_constant
has quantity kind: InverseLength
informative reference: http://physics.nist.gov/cuu/Constants/bibliography.html
informative reference: http://www.iso.org/iso/home/store/catalogue_tc/catalogue_detail.htm
informative reference: https://en.wikipedia.org/wiki/Rydberg_constant
iso normative reference: http://www.iso.org/iso/catalogue_detail
latex definition: $R_\infty = \frac{e^2}{8\pi \varepsilon_0 a_0 h c_0 }$, where $e$ is the elementary charge, $\varepsilon_0$ is the electric constant, $a_0$ is the Bohr radius, $h$ is the Planck constant, and $c_0$ is the speed of light in vacuum.
latex symbol: $R_\infty$
normative reference: http://www.iso.org/iso/catalogue_detail
quantity value: Value for Rydberg constant

Rydberg constant times c in Hz
type: PhysicalConstant
has quantity kind: Frequency
informative reference: http://physics.nist.gov/cuu/Constants/bibliography.html
quantity value: Value for Rydberg constant times c in Hz

Rydberg constant times hc in eV
type: PhysicalConstant
has quantity kind: Energy
informative reference: http://physics.nist.gov/cuu/Constants/bibliography.html
quantity value: Value for Rydberg constant times hc in eV

Rydberg constant times hc in J
type: PhysicalConstant
has quantity kind: Energy
informative reference: http://physics.nist.gov/cuu/Constants/bibliography.html
quantity value: Value for Rydberg constant times hc in J

Sackur-Tetrode constant 1 K 100 kPa
type: PhysicalConstant
has quantity kind: DimensionlessRatio
informative reference: http://physics.nist.gov/cuu/Constants/bibliography.html
quantity value: Value for Sackur-Tetrode constant 1 K 100 kPa

Sackur-Tetrode constant 1 K 101.325 kPa
type: PhysicalConstant
has quantity kind: DimensionlessRatio
informative reference: http://physics.nist.gov/cuu/Constants/bibliography.html

second radiation constant
type: PhysicalConstant
has quantity kind: LengthTemperature
informative reference: http://physics.nist.gov/cuu/Constants/bibliography.html
quantity value: Value for second radiation constant

shielded helion gyromagnetic ratio
type: PhysicalConstant
has quantity kind: GyromagneticRatio
informative reference: http://physics.nist.gov/cuu/Constants/bibliography.html
quantity value: Value for shielded helion gyromagnetic ratio

shielded helion gyromagnetic ratio over 2 pi
type: PhysicalConstant
has quantity kind: GyromagneticRatio
informative reference: http://physics.nist.gov/cuu/Constants/bibliography.html

shielded helion magnetic moment
type: PhysicalConstant
has quantity kind: MagneticDipoleMoment
informative reference: http://physics.nist.gov/cuu/Constants/bibliography.html
quantity value: Value for shielded helion magnetic moment

shielded helion magnetic moment to Bohr magneton ratio
type: PhysicalConstant
has quantity kind: DimensionlessRatio
informative reference: http://physics.nist.gov/cuu/Constants/bibliography.html
quantity value: Value for shielded helion magnetic moment to Bohr magneton ratio

shielded helion magnetic moment to nuclear magneton ratio
type: PhysicalConstant
has quantity kind: DimensionlessRatio
informative reference: http://physics.nist.gov/cuu/Constants/bibliography.html
quantity value: Value for shielded helion magnetic moment to nuclear magneton ratio

shielded helion to proton magnetic moment ratio
type: PhysicalConstant
has quantity kind: DimensionlessRatio
informative reference: http://physics.nist.gov/cuu/Constants/bibliography.html
quantity value: Value for shielded helion to proton magnetic moment ratio

shielded helion to shielded proton magnetic moment ratio
type: PhysicalConstant
has quantity kind: DimensionlessRatio
informative reference: http://physics.nist.gov/cuu/Constants/bibliography.html
quantity value: Value for shielded helion to shielded proton magnetic moment ratio

shielded proton gyromagnetic ratio
type: PhysicalConstant
has quantity kind: GyromagneticRatio
informative reference: http://physics.nist.gov/cuu/Constants/bibliography.html
quantity value: Value for shielded proton gyromagnetic ratio

shielded proton gyromagnetic ratio over 2 pi
type: PhysicalConstant
has quantity kind: GyromagneticRatio
informative reference: http://physics.nist.gov/cuu/Constants/bibliography.html

shielded proton magnetic moment
type: PhysicalConstant
has quantity kind: MagneticDipoleMoment
informative reference: http://physics.nist.gov/cuu/Constants/bibliography.html
quantity value: Value for shielded proton magnetic moment

shielded proton magnetic moment to Bohr magneton ratio
type: PhysicalConstant
has quantity kind: DimensionlessRatio
informative reference: http://physics.nist.gov/cuu/Constants/bibliography.html
quantity value: Value for shielded proton magnetic moment to Bohr magneton ratio

shielded proton magnetic moment to nuclear magneton ratio
type: PhysicalConstant
has quantity kind: DimensionlessRatio
informative reference: http://physics.nist.gov/cuu/Constants/bibliography.html
quantity value: Value for shielded proton magnetic moment to nuclear magneton ratio

Speed of Light (vacuum)
type: PhysicalConstant
description: The $\textit{Speed of Light in Vacuum}$, is a universal physical constant important in many areas of physics. Its value is 299,792,458 metres per second, a figure that is exact because the length of the metre is defined from this constant and the international standard for time.
has quantity kind: Speed
informative reference: http://dbpedia.org/resource/Speed_of_light
informative reference: http://physics.nist.gov/cuu/Constants/bibliography.html
informative reference: http://www.electropedia.org/iev/iev.nsf/display
informative reference: http://www.iso.org/iso/home/store/catalogue_tc/catalogue_detail.htm
informative reference: https://en.wikipedia.org/wiki/Speed_of_light
latex definition: $c_0 = 1 / \sqrt{\epsilon_0 \mu_0}$, where {\epsilon_0} is the permittivity of vacuum, and $\mu_0$ is the magnetic constant.
latex symbol: $C_0$
quantity value: Value for speed of light in a vacuum
quantity value: Value for speed of light in vacuum (Imperial units)
si exact match: SpeedOfLight
ucum code: [c]

standard acceleration of gravity
type: PhysicalConstant
dbpedia match: http://dbpedia.org/resource/Standard_gravity
exact constant: true
has quantity kind: LinearAcceleration
informative reference: http://physics.nist.gov/cuu/Constants/bibliography.html
quantity value: Value for standard acceleration of gravity

standard atmosphere
type: PhysicalConstant
dbpedia match: http://dbpedia.org/resource/Standard_atmosphere
exact constant: true
has quantity kind: Pressure
informative reference: http://physics.nist.gov/cuu/Constants/bibliography.html
quantity value: Value for standard atmosphere

Stefan-Boltzmann Constant
type: PhysicalConstant
description: The $\textit{Stefan Boltzmann Constant}$ is a proportionality factor between the specific radiant heat of a black body and the 4th power of its absolute temperature.
dbpedia match: http://dbpedia.org/resource/Stefan%E2%80%93Boltzmann_constant
has dimension vector: A0E0L0I0M1H-4T-3D0
has quantity kind: PowerPerAreaQuarticTemperature
informative reference: http://physics.nist.gov/cuu/Constants/bibliography.html
plain text description: Proportionalitätsfaktor zwischen der spezifischen Strahlungswärme eines schwarzen Strahlers und seiner absoluten Temperatur in der 4. Potenz @de
quantity value: Value for Stefan-Boltzmann Constant
symbol: 0173-1#Z4-BAJ444#001

tau Compton wavelength
type: PhysicalConstant
has quantity kind: Length
informative reference: http://physics.nist.gov/cuu/Constants/bibliography.html
quantity value: Value for tau Compton wavelength

tau Compton wavelength over 2 pi
type: PhysicalConstant
has quantity kind: Length
informative reference: http://physics.nist.gov/cuu/Constants/bibliography.html
quantity value: Value for tau Compton wavelength over 2 pi

tau-electron mass ratio
type: PhysicalConstant
has quantity kind: DimensionlessRatio
informative reference: http://physics.nist.gov/cuu/Constants/bibliography.html
quantity value: Value for tau-electron mass ratio

tau mass
type: PhysicalConstant
has quantity kind: Mass
informative reference: http://physics.nist.gov/cuu/Constants/bibliography.html
quantity value: Value for tau mass

tau mass energy equivalent
type: PhysicalConstant
has quantity kind: Energy
informative reference: http://physics.nist.gov/cuu/Constants/bibliography.html
quantity value: Value for tau mass energy equivalent

tau mass energy equivalent in MeV
type: PhysicalConstant
has quantity kind: Energy
informative reference: http://physics.nist.gov/cuu/Constants/bibliography.html
quantity value: Value for tau mass energy equivalent in MeV

tau mass in atomic mass unit
type: PhysicalConstant
has quantity kind: Mass
informative reference: http://physics.nist.gov/cuu/Constants/bibliography.html
quantity value: Tau Mass (amu)

tau molar mass
type: PhysicalConstant
has quantity kind: MolarMass
informative reference: http://physics.nist.gov/cuu/Constants/bibliography.html
quantity value: Value for tau molar mass

tau-muon mass ratio
type: PhysicalConstant
has quantity kind: DimensionlessRatio
informative reference: http://physics.nist.gov/cuu/Constants/bibliography.html
quantity value: Value for tau-muon mass ratio

tau-neutron mass ratio
type: PhysicalConstant
has quantity kind: DimensionlessRatio
informative reference: http://physics.nist.gov/cuu/Constants/bibliography.html
quantity value: Value for tau-neutron mass ratio

tau-proton mass ratio
type: PhysicalConstant
has quantity kind: DimensionlessRatio
informative reference: http://physics.nist.gov/cuu/Constants/bibliography.html
quantity value: Value for tau-proton mass ratio

Thomson cross section
type: PhysicalConstant
dbpedia match: http://dbpedia.org/resource/Thomson_scattering
has quantity kind: Area
informative reference: http://physics.nist.gov/cuu/Constants/bibliography.html
quantity value: Value for Thomson cross section

triton-electron magnetic moment ratio
type: PhysicalConstant
has quantity kind: DimensionlessRatio
informative reference: http://physics.nist.gov/cuu/Constants/bibliography.html
quantity value: Value for triton-electron magnetic moment ratio

triton-electron mass ratio
type: PhysicalConstant
has quantity kind: DimensionlessRatio
informative reference: http://physics.nist.gov/cuu/Constants/bibliography.html
quantity value: Value for triton-electron mass ratio

triton g factor
type: PhysicalConstant
has quantity kind: DimensionlessRatio
informative reference: http://physics.nist.gov/cuu/Constants/bibliography.html
quantity value: Value for triton g factor

triton magnetic moment
type: PhysicalConstant
has quantity kind: MagneticDipoleMoment
informative reference: http://physics.nist.gov/cuu/Constants/bibliography.html
quantity value: Value for triton magnetic moment

triton magnetic moment to Bohr magneton ratio
type: PhysicalConstant
has quantity kind: DimensionlessRatio
informative reference: http://physics.nist.gov/cuu/Constants/bibliography.html
quantity value: Value for triton magnetic moment to Bohr magneton ratio

triton magnetic moment to nuclear magneton ratio
type: PhysicalConstant
has quantity kind: DimensionlessRatio
informative reference: http://physics.nist.gov/cuu/Constants/bibliography.html
quantity value: Value for triton magnetic moment to nuclear magneton ratio

triton mass
type: PhysicalConstant
has quantity kind: Mass
informative reference: http://physics.nist.gov/cuu/Constants/bibliography.html
quantity value: Value for triton mass

triton mass energy equivalent
type: PhysicalConstant
has quantity kind: Energy
informative reference: http://physics.nist.gov/cuu/Constants/bibliography.html
quantity value: Value for triton mass energy equivalent

triton mass energy equivalent in MeV
type: PhysicalConstant
has quantity kind: Energy
informative reference: http://physics.nist.gov/cuu/Constants/bibliography.html
quantity value: Value for triton mass energy equivalent in MeV

triton mass in atomic mass unit
type: PhysicalConstant
has quantity kind: Mass
informative reference: http://physics.nist.gov/cuu/Constants/bibliography.html
quantity value: Triton Mass (amu)

triton molar mass
type: PhysicalConstant
has quantity kind: MolarMass
informative reference: http://physics.nist.gov/cuu/Constants/bibliography.html
quantity value: Value for triton molar mass

triton-neutron magnetic moment ratio
type: PhysicalConstant
has quantity kind: DimensionlessRatio
informative reference: http://physics.nist.gov/cuu/Constants/bibliography.html
quantity value: Value for triton-neutron magnetic moment ratio

triton-proton magnetic moment ratio
type: PhysicalConstant
has quantity kind: DimensionlessRatio
informative reference: http://physics.nist.gov/cuu/Constants/bibliography.html
quantity value: Value for triton-proton magnetic moment ratio

triton-proton mass ratio
type: PhysicalConstant
has quantity kind: DimensionlessRatio
informative reference: http://physics.nist.gov/cuu/Constants/bibliography.html
quantity value: Value for triton-proton mass ratio

unified atomic mass unit
type: PhysicalConstant
dbpedia match: http://dbpedia.org/resource/Atomic_mass_unit
has quantity kind: Mass
informative reference: http://physics.nist.gov/cuu/Constants/bibliography.html
quantity value: Value for unified atomic mass unit
ucum code: u

Universal Gas Constant
type: PhysicalConstant
exact match: molar gas constant
has dimension vector: A-1E0L2I0M1H-1T-2D0
latex symbol: $R$
plain text description: The gas constant (also known as the molar, universal, or ideal gas constant) is a physical constant which is featured in many fundamental equations in the physical sciences, such as the ideal gas law and the Nernst equation. Physically, the gas constant is the constant of proportionality that happens to relate the energy scale in physics to the temperature scale, when a mole of particles at the stated temperature is being considered.
quantity value: Value for molar gas constant

Value for alpha particle-electron mass ratio
type: ConstantValue
has unit: UNITLESS
informative reference: http://physics.nist.gov/cuu/Constants/bibliography.html
standard uncertainty: 0.0000031
standard uncertainty SN: 3.1E-6
value: 7294.299537
value SN: 7.294299537E3
website: http://physics.nist.gov/cgi-bin/cuu/Value#mid

Value for alpha particle mass
type: ConstantValue
has unit: KiloGM
informative reference: http://physics.nist.gov/cuu/Constants/bibliography.html
relative standard uncertainty: 5.0e-8
standard uncertainty: 0.00000000000000000000000000000000033
standard uncertainty SN: 3.3E-34
value: 0.0000000000000000000000000066446562
value SN: 6.6446562E-27
website: http://physics.nist.gov/cgi-bin/cuu/Value#mid

Value for alpha particle mass energy equivalent
type: ConstantValue
has unit: http://qudt.org/vocab/unit/J
informative reference: http://physics.nist.gov/cuu/Constants/bibliography.html
standard uncertainty: 0.00000000000000003
standard uncertainty SN: 3.0E-17
value: 0.000000000597191917
value SN: 5.97191917E-10
website: http://physics.nist.gov/cgi-bin/cuu/Value#mid

Value for alpha particle mass energy equivalent in MeV
type: ConstantValue
has unit: MegaEV
informative reference: http://physics.nist.gov/cuu/Constants/bibliography.html
standard uncertainty: 0.000093
standard uncertainty SN: 9.3E-5
value: 3727.379109
value SN: 3.727379109E3
website: http://physics.nist.gov/cgi-bin/cuu/Value#mid

Value for alpha particle mass in atomic mass unit
type: ConstantValue
has unit: http://qudt.org/vocab/unit/U
informative reference: http://physics.nist.gov/cuu/Constants/bibliography.html
standard uncertainty: 0.000000000062
standard uncertainty SN: 6.2E-11
value: 4.001506179127
value SN: 4.001506179127E0
website: http://physics.nist.gov/cgi-bin/cuu/Value#mid

Value for alpha particle molar mass
type: ConstantValue
has unit: KiloGM-PER-MOL
informative reference: http://physics.nist.gov/cuu/Constants/bibliography.html
standard uncertainty: 0.000000000000062
standard uncertainty SN: 6.2E-14
value: 0.004001506179127
value SN: 4.001506179127E-3
website: http://physics.nist.gov/cgi-bin/cuu/Value#mid

Value for alpha particle-proton mass ratio
type: ConstantValue
has unit: UNITLESS
informative reference: http://physics.nist.gov/cuu/Constants/bibliography.html
standard uncertainty: 0.00000000041
standard uncertainty SN: 4.1E-10
value: 3.97259968951
value SN: 3.97259968951E0
website: http://physics.nist.gov/cgi-bin/cuu/Value#mid

Value for Angstrom star
type: ConstantValue
has unit: http://qudt.org/vocab/unit/M
informative reference: http://physics.nist.gov/cuu/Constants/bibliography.html
standard uncertainty: 0.00000000000000009
standard uncertainty SN: 9.0E-17
value: 0.000000000100001498
value SN: 1.00001498E-10
website: http://physics.nist.gov/cgi-bin/cuu/Value#mid

Value for atomic mass constant
type: ConstantValue
has unit: KiloGM
informative reference: http://physics.nist.gov/cuu/Constants/bibliography.html
standard uncertainty: 0.000000000000000000000000000000000083
standard uncertainty SN: 8.3E-35
value: 0.000000000000000000000000001660538782
value SN: 1.660538782E-27
website: http://physics.nist.gov/cgi-bin/cuu/Value#mid

Value for atomic mass constant energy equivalent
type: ConstantValue
has unit: http://qudt.org/vocab/unit/J
informative reference: http://physics.nist.gov/cuu/Constants/bibliography.html
standard uncertainty: 0.0000000000000000074
standard uncertainty SN: 7.4E-18
value: 0.000000000149241783
value SN: 1.49241783E-10
website: http://physics.nist.gov/cgi-bin/cuu/Value#mid

Value for atomic mass constant energy equivalent in MeV
type: ConstantValue
has unit: MegaEV
informative reference: http://physics.nist.gov/cuu/Constants/bibliography.html
standard uncertainty: 0.000023
standard uncertainty SN: 2.3E-5
value: 931.494028
value SN: 9.31494028E2
website: http://physics.nist.gov/cgi-bin/cuu/Value#mid

Value for atomic mass unit-electron volt relationship
type: ConstantValue
has unit: EV
informative reference: http://physics.nist.gov/cuu/Constants/bibliography.html
standard uncertainty: 23.0
standard uncertainty SN: 2.3E1
value: 931494028.0
value SN: 9.31494028E8
website: http://physics.nist.gov/cgi-bin/cuu/Value#mid

Value for atomic mass unit-hartree relationship
type: ConstantValue
has unit: E h
informative reference: http://physics.nist.gov/cuu/Constants/bibliography.html
standard uncertainty: 0.049
standard uncertainty SN: 4.9E-2
value: 34231777.149
value SN: 3.4231777149E7
website: http://physics.nist.gov/cgi-bin/cuu/Value#mid

Value for atomic mass unit-hertz relationship
type: ConstantValue
has unit: HZ
informative reference: http://physics.nist.gov/cuu/Constants/bibliography.html
standard uncertainty: 320000000000000.0
standard uncertainty SN: 3.2E14
value: 225234273690000000000000.0
value SN: 2.2523427369E23
website: http://physics.nist.gov/cgi-bin/cuu/Value#mid

Value for atomic mass unit-inverse meter relationship
type: ConstantValue
has unit: PER-M
informative reference: http://physics.nist.gov/cuu/Constants/bibliography.html
standard uncertainty: 1100000.0
standard uncertainty SN: 1.1E6
value: 751300667100000.0
value SN: 7.513006671E14
website: http://physics.nist.gov/cgi-bin/cuu/Value#mid

Value for atomic mass unit-joule relationship
type: ConstantValue
has unit: http://qudt.org/vocab/unit/J
informative reference: http://physics.nist.gov/cuu/Constants/bibliography.html
standard uncertainty: 0.0000000000000000074
standard uncertainty SN: 7.4E-18
value: 0.000000000149241783
value SN: 1.49241783E-10
website: http://physics.nist.gov/cgi-bin/cuu/Value#mid

Value for atomic mass unit-kelvin relationship
type: ConstantValue
has unit: http://qudt.org/vocab/unit/K
informative reference: http://physics.nist.gov/cuu/Constants/bibliography.html
standard uncertainty: 19000000.0
standard uncertainty SN: 1.9E7
value: 10809527000000.0
value SN: 1.0809527E13
website: http://physics.nist.gov/cgi-bin/cuu/Value#mid

Value for atomic mass unit-kilogram relationship
type: ConstantValue
has unit: KiloGM
informative reference: http://physics.nist.gov/cuu/Constants/bibliography.html
standard uncertainty: 0.000000000000000000000000000000000083
standard uncertainty SN: 8.3E-35
value: 0.000000000000000000000000001660538782
value SN: 1.660538782E-27
website: http://physics.nist.gov/cgi-bin/cuu/Value#mid

Value for atomic unit of 1st hyperpolarizability
type: ConstantValue
has unit: C3-M-PER-J2
informative reference: http://physics.nist.gov/cuu/Constants/bibliography.html
standard uncertainty SN: 8.1E-61
value SN: 3.206361533E-53
website: http://physics.nist.gov/cgi-bin/cuu/Value#mid

Value for atomic unit of 2nd hyperpolarizability
type: ConstantValue
has unit: C4-M4-PER-J3
informative reference: http://physics.nist.gov/cuu/Constants/bibliography.html
standard uncertainty SN: 3.1E-72
value SN: 6.23538095E-65
website: http://physics.nist.gov/cgi-bin/cuu/Value#mid

Value for atomic unit of action
type: ConstantValue
has unit: J-SEC
informative reference: http://physics.nist.gov/cuu/Constants/bibliography.html
standard uncertainty SN: 5.3E-42
value SN: 1.054571628E-34
website: http://physics.nist.gov/cgi-bin/cuu/Value#mid

Value for atomic unit of charge
type: ConstantValue
has unit: http://qudt.org/vocab/unit/C
informative reference: http://physics.nist.gov/cuu/Constants/bibliography.html
standard uncertainty: 0.000000000000000000000000004
standard uncertainty SN: 4.0E-27
value: 0.0000000000000000001602176487
value SN: 1.602176487E-19
website: http://physics.nist.gov/cgi-bin/cuu/Value#mid

Value for atomic unit of charge density
type: ConstantValue
has unit: C-PER-M3
informative reference: http://physics.nist.gov/cuu/Constants/bibliography.html
standard uncertainty: 27000.0
standard uncertainty SN: 2.7E4
value: 1081202300000.0
value SN: 1.0812023E12
website: http://physics.nist.gov/cgi-bin/cuu/Value#mid

Value for atomic unit of current
type: ConstantValue
has unit: http://qudt.org/vocab/unit/A
informative reference: http://physics.nist.gov/cuu/Constants/bibliography.html
standard uncertainty: 0.00000000017
standard uncertainty SN: 1.7E-10
value: 0.00662361763
value SN: 6.62361763E-3
website: http://physics.nist.gov/cgi-bin/cuu/Value#mid

Value for atomic unit of electric dipole mom.
type: ConstantValue
has unit: C-M
informative reference: http://physics.nist.gov/cuu/Constants/bibliography.html
standard uncertainty: 0.00000000000000000000000000000000000021
standard uncertainty SN: 2.1E-37
value: 0.00000000000000000000000000000847835281
value SN: 8.47835281E-30
website: http://physics.nist.gov/cgi-bin/cuu/Value#mid

Value for atomic unit of electric field
type: ConstantValue
has unit: V-PER-M
informative reference: http://physics.nist.gov/cuu/Constants/bibliography.html
standard uncertainty: 13000.0
standard uncertainty SN: 1.3E4
value: 514220632000.0
value SN: 5.14220632E11
website: http://physics.nist.gov/cgi-bin/cuu/Value#mid

Value for atomic unit of electric field gradient
type: ConstantValue
has unit: V-PER-M2
informative reference: http://physics.nist.gov/cuu/Constants/bibliography.html
standard uncertainty: 240000000000000.0
standard uncertainty SN: 2.4E14
value: 9717361660000000000000.0
value SN: 9.71736166E21
website: http://physics.nist.gov/cgi-bin/cuu/Value#mid

Value for atomic unit of electric polarizability
type: ConstantValue
has unit: C2-M2-PER-J
informative reference: http://physics.nist.gov/cuu/Constants/bibliography.html
standard uncertainty SN: 3.4E-50
value SN: 1.6487772536E-41
website: http://physics.nist.gov/cgi-bin/cuu/Value#mid

Value for atomic unit of electric potential
type: ConstantValue
has unit: http://qudt.org/vocab/unit/V
informative reference: http://physics.nist.gov/cuu/Constants/bibliography.html
standard uncertainty: 0.00000068
standard uncertainty SN: 6.8E-7
value: 27.21138386
value SN: 2.721138386E1
website: http://physics.nist.gov/cgi-bin/cuu/Value#mid

Value for atomic unit of electric quadrupole moment
type: ConstantValue
has unit: C-M2
informative reference: http://physics.nist.gov/cuu/Constants/bibliography.html
standard uncertainty SN: 1.1E-47
value SN: 4.48655107E-40
website: http://physics.nist.gov/cgi-bin/cuu/Value#mid

Value for atomic unit of energy
type: ConstantValue
has unit: http://qudt.org/vocab/unit/J
informative reference: http://physics.nist.gov/cuu/Constants/bibliography.html
standard uncertainty: 0.00000000000000000000000022
standard uncertainty SN: 2.2E-25
value: 0.00000000000000000435974394
value SN: 4.35974394E-18
website: http://physics.nist.gov/cgi-bin/cuu/Value#mid

Value for atomic unit of force
type: ConstantValue
has unit: http://qudt.org/vocab/unit/N
informative reference: http://physics.nist.gov/cuu/Constants/bibliography.html
standard uncertainty: 0.0000000000000041
standard uncertainty SN: 4.1E-15
value: 0.0000000823872206
value SN: 8.23872206E-8
website: http://physics.nist.gov/cgi-bin/cuu/Value#mid

Value for atomic unit of length
type: ConstantValue
has unit: http://qudt.org/vocab/unit/M
informative reference: http://physics.nist.gov/cuu/Constants/bibliography.html
standard uncertainty: 0.000000000000000000036
standard uncertainty SN: 3.6E-20
value: 0.000000000052917720859
value SN: 5.2917720859E-11
website: http://physics.nist.gov/cgi-bin/cuu/Value#mid

Value for atomic unit of magnetic dipole moment
type: ConstantValue
has unit: J-PER-T
informative reference: http://physics.nist.gov/cuu/Constants/bibliography.html
standard uncertainty: 0.00000000000000000000000000000046
standard uncertainty SN: 4.6E-31
value: 0.0000000000000000000000185480183
value SN: 1.85480183E-23
website: http://physics.nist.gov/cgi-bin/cuu/Value#mid

Value for atomic unit of magnetic flux density
type: ConstantValue
has unit: http://qudt.org/vocab/unit/T
informative reference: http://physics.nist.gov/cuu/Constants/bibliography.html
standard uncertainty: 0.0059
standard uncertainty SN: 5.9E-3
value: 235051.7382
value SN: 2.350517382E5
website: http://physics.nist.gov/cgi-bin/cuu/Value#mid

Value for atomic unit of magnetizability
type: ConstantValue
has unit: J-PER-T2
informative reference: http://physics.nist.gov/cuu/Constants/bibliography.html
standard uncertainty: 0.00000000000000000000000000000000000027
standard uncertainty SN: 2.7E-37
value: 0.00000000000000000000000000007891036433
value SN: 7.891036433E-29
website: http://physics.nist.gov/cgi-bin/cuu/Value#mid

Value for atomic unit of mass
type: ConstantValue
has unit: KiloGM
informative reference: http://physics.nist.gov/cuu/Constants/bibliography.html
standard uncertainty: 0.000000000000000000000000000000000000045
standard uncertainty SN: 4.5E-38
value: 0.000000000000000000000000000000910938215
value SN: 9.10938215E-31
website: http://physics.nist.gov/cgi-bin/cuu/Value#mid

Value for atomic unit of momentum
type: ConstantValue
has unit: KiloGM-M-PER-SEC
informative reference: http://physics.nist.gov/cuu/Constants/bibliography.html
standard uncertainty: 0.000000000000000000000000000000099
standard uncertainty SN: 9.9E-32
value: 0.000000000000000000000001992851565
value SN: 1.992851565E-24
website: http://physics.nist.gov/cgi-bin/cuu/Value#mid

Value for atomic unit of permittivity
type: ConstantValue
has unit: FARAD-PER-M
informative reference: http://physics.nist.gov/cuu/Constants/bibliography.html
value: 0.0000000001112650056
value SN: 1.112650056E-10
website: http://physics.nist.gov/cgi-bin/cuu/Value#mid

Value for atomic unit of time
type: ConstantValue
has unit: SEC
informative reference: http://physics.nist.gov/cuu/Constants/bibliography.html
standard uncertainty: 0.0000000000016
standard uncertainty SN: 1.6E-12
value: 0.00000000000000002418884326505
value SN: 2.418884326505E-17
website: http://physics.nist.gov/cgi-bin/cuu/Value#mid

Value for atomic unit of velocity
type: ConstantValue
has unit: M-PER-SEC
informative reference: http://physics.nist.gov/cuu/Constants/bibliography.html
standard uncertainty: 0.0015
standard uncertainty SN: 1.5E-3
value: 2187691.2541
value SN: 2.1876912541E6
website: http://physics.nist.gov/cgi-bin/cuu/Value#mid

Value for Avogadro constant
type: ConstantValue
has unit: PER-MOL
informative reference: http://physics.nist.gov/cuu/Constants/bibliography.html
standard uncertainty: 30000000000000000.0
standard uncertainty SN: 3.0E16
value: 602214179000000000000000.0
value SN: 6.02214179E23
website: http://physics.nist.gov/cgi-bin/cuu/Value#mid

Value for Bohr magneton
type: ConstantValue
has unit: J-PER-T
informative reference: http://physics.nist.gov/cuu/Constants/bibliography.html
standard uncertainty: 0.00000000000000000000000000000023
standard uncertainty SN: 2.3E-31
value: 0.00000000000000000000000927400915
value SN: 9.27400915E-24
website: http://physics.nist.gov/cgi-bin/cuu/Value#mid

Value for Bohr magneton in eV per T
type: ConstantValue
has unit: EV-PER-T
informative reference: http://physics.nist.gov/cuu/Constants/bibliography.html
standard uncertainty: 0.000000000000079
standard uncertainty SN: 7.9E-14
value: 0.000057883817555
value SN: 5.7883817555E-5
website: http://physics.nist.gov/cgi-bin/cuu/Value#mid

Value for Bohr magneton in Hz perT
type: ConstantValue
has unit: HZ-PER-T
informative reference: http://physics.nist.gov/cuu/Constants/bibliography.html
standard uncertainty: 350.0
standard uncertainty SN: 3.5E2
value: 13996246040.0
value SN: 1.399624604E10
website: http://physics.nist.gov/cgi-bin/cuu/Value#mid

Value for Bohr magneton in inverse meters per tesla
type: ConstantValue
has unit: PER-T-M
informative reference: http://physics.nist.gov/cuu/Constants/bibliography.html
standard uncertainty: 0.0000012
standard uncertainty SN: 1.2E-6
value: 46.6864515
value SN: 4.66864515E1
website: http://physics.nist.gov/cgi-bin/cuu/Value#mid

Value for Bohr magneton in K per T
type: ConstantValue
has unit: K-PER-T
informative reference: http://physics.nist.gov/cuu/Constants/bibliography.html
standard uncertainty: 0.0000012
standard uncertainty SN: 1.2E-6
value: 0.6717131
value SN: 6.717131E-1
website: http://physics.nist.gov/cgi-bin/cuu/Value#mid

Value for Bohr radius
type: ConstantValue
has unit: http://qudt.org/vocab/unit/M
informative reference: http://physics.nist.gov/cuu/Constants/bibliography.html
standard uncertainty: 0.000000000000000000036
standard uncertainty SN: 3.6E-20
value: 0.000000000052917720859
value SN: 5.2917720859E-11
website: http://physics.nist.gov/cgi-bin/cuu/Value#mid

Value for Boltzmann constant
type: ConstantValue
has unit: J-PER-K
informative reference: http://physics.nist.gov/cuu/Constants/bibliography.html
standard uncertainty: 0.000000000000000000000000000024
standard uncertainty SN: 2.4E-29
value: 0.000000000000000000000013806504
value SN: 1.3806504E-23
website: http://physics.nist.gov/cgi-bin/cuu/Value#mid

Value for Boltzmann constant in eV per K
type: ConstantValue
has unit: EV-PER-K
informative reference: http://physics.nist.gov/cuu/Constants/bibliography.html
standard uncertainty: 0.00000000015
standard uncertainty SN: 1.5E-10
value: 0.00008617343
value SN: 8.617343E-5
website: http://physics.nist.gov/cgi-bin/cuu/Value#mid

Value for Boltzmann constant in Hz per K
type: ConstantValue
has unit: HZ-PER-K
informative reference: http://physics.nist.gov/cuu/Constants/bibliography.html
standard uncertainty: 36000.0
standard uncertainty SN: 3.6E4
value: 20836644000.0
value SN: 2.0836644E10
website: http://physics.nist.gov/cgi-bin/cuu/Value#mid

Value for Boltzmann constant in inverse meters per kelvin
type: ConstantValue
has unit: PER-M-K
informative reference: http://physics.nist.gov/cuu/Constants/bibliography.html
standard uncertainty: 0.00012
standard uncertainty SN: 1.2E-4
value: 69.50356
value SN: 6.950356E1
website: http://physics.nist.gov/cgi-bin/cuu/Value#mid

Value for characteristic impedance of vacuum
type: ConstantValue
has unit: OHM
informative reference: http://physics.nist.gov/cuu/Constants/bibliography.html
value: 376.730313461
value SN: 3.76730313461E2
website: http://physics.nist.gov/cgi-bin/cuu/Value#mid

Value for classical electron radius
type: ConstantValue
has unit: http://qudt.org/vocab/unit/M
informative reference: http://physics.nist.gov/cuu/Constants/bibliography.html
standard uncertainty: 0.0000000000000000000000058
standard uncertainty SN: 5.8E-24
value: 0.0000000000000028179402894
value SN: 2.8179402894E-15
website: http://physics.nist.gov/cgi-bin/cuu/Value#mid

Value for Compton wavelength
type: ConstantValue
has unit: http://qudt.org/vocab/unit/M
informative reference: http://physics.nist.gov/cuu/Constants/bibliography.html
standard uncertainty: 0.0000000000000000000033
standard uncertainty SN: 3.3E-21
value: 0.0000000000024263102175
value SN: 2.4263102175E-12
website: http://physics.nist.gov/cgi-bin/cuu/Value#mid

Value for Compton wavelength over 2 pi
type: ConstantValue
has unit: http://qudt.org/vocab/unit/M
informative reference: http://physics.nist.gov/cuu/Constants/bibliography.html
standard uncertainty: 0.00000000000000000000053
standard uncertainty SN: 5.3E-22
value: 0.00000000000038615926459
value SN: 3.8615926459E-13
website: http://physics.nist.gov/cgi-bin/cuu/Value#mid

Value for conductance quantum
type: ConstantValue
has unit: http://qudt.org/vocab/unit/S
informative reference: http://physics.nist.gov/cuu/Constants/bibliography.html
standard uncertainty: 0.000000000000053
standard uncertainty SN: 5.3E-14
value: 0.000077480917004
value SN: 7.7480917004E-5
website: http://physics.nist.gov/cgi-bin/cuu/Value#mid

Value for conventional value of Josephson constant
type: ConstantValue
has unit: HZ-PER-V
informative reference: http://physics.nist.gov/cuu/Constants/bibliography.html
value: 483597900000000.0
value SN: 4.835979E14
website: http://physics.nist.gov/cgi-bin/cuu/Value#mid

Value for conventional value of von Klitzing constant
type: ConstantValue
has unit: OHM
informative reference: http://physics.nist.gov/cuu/Constants/bibliography.html
value: 25812.807
value SN: 2.5812807E4
website: http://physics.nist.gov/cgi-bin/cuu/Value#mid

Value for Cu x unit
type: ConstantValue
has unit: http://qudt.org/vocab/unit/M
informative reference: http://physics.nist.gov/cuu/Constants/bibliography.html
standard uncertainty: 0.000000000000000000028
standard uncertainty SN: 2.8E-20
value: 0.000000000000100207699
value SN: 1.00207699E-13
website: http://physics.nist.gov/cgi-bin/cuu/Value#mid

Value for deuteron-electron magnetic moment ratio
type: ConstantValue
has unit: UNITLESS
informative reference: http://physics.nist.gov/cuu/Constants/bibliography.html
standard uncertainty: 0.0000000000039
standard uncertainty SN: 3.9E-12
value: -0.0004664345537
value SN: -4.664345537E-4
website: http://physics.nist.gov/cgi-bin/cuu/Value#mid

Value for deuteron-electron mass ratio
type: ConstantValue
has unit: UNITLESS
informative reference: http://physics.nist.gov/cuu/Constants/bibliography.html
standard uncertainty: 0.0000016
standard uncertainty SN: 1.6E-6
value: 3670.4829654
value SN: 3.6704829654E3
website: http://physics.nist.gov/cgi-bin/cuu/Value#mid

Value for deuteron g factor
type: ConstantValue
has unit: UNITLESS
informative reference: http://physics.nist.gov/cuu/Constants/bibliography.html
standard uncertainty: 0.0000000072
standard uncertainty SN: 7.2E-9
value: 0.8574382308
value SN: 8.574382308E-1
website: http://physics.nist.gov/cgi-bin/cuu/Value#mid

Value for deuteron magnetic moment
type: ConstantValue
has unit: J-PER-T
informative reference: http://physics.nist.gov/cuu/Constants/bibliography.html
standard uncertainty: 0.00000000000000000000000000000000011
standard uncertainty SN: 1.1E-34
value: 0.00000000000000000000000000433073465
value SN: 4.33073465E-27
website: http://physics.nist.gov/cgi-bin/cuu/Value#mid

Value for deuteron magnetic moment to Bohr magneton ratio
type: ConstantValue
has unit: UNITLESS
informative reference: http://physics.nist.gov/cuu/Constants/bibliography.html
standard uncertainty: 0.0000000000039
standard uncertainty SN: 3.9E-12
value: 0.0004669754556
value SN: 4.669754556E-4
website: http://physics.nist.gov/cgi-bin/cuu/Value#mid

Value for deuteron magnetic moment to nuclear magneton ratio
type: ConstantValue
has unit: UNITLESS
informative reference: http://physics.nist.gov/cuu/Constants/bibliography.html
standard uncertainty: 0.0000000072
standard uncertainty SN: 7.2E-9
value: 0.8574382308
value SN: 8.574382308E-1
website: http://physics.nist.gov/cgi-bin/cuu/Value#mid

Value for deuteron mass
type: ConstantValue
has unit: KiloGM
informative reference: http://physics.nist.gov/cuu/Constants/bibliography.html
standard uncertainty: 0.00000000000000000000000000000000017
standard uncertainty SN: 1.7E-34
value: 0.0000000000000000000000000033435832
value SN: 3.3435832E-27
website: http://physics.nist.gov/cgi-bin/cuu/Value#mid

Value for deuteron mass energy equivalent
type: ConstantValue
has unit: http://qudt.org/vocab/unit/J
informative reference: http://physics.nist.gov/cuu/Constants/bibliography.html
standard uncertainty: 0.000000000000000015
standard uncertainty SN: 1.5E-17
value: 0.000000000300506272
value SN: 3.00506272E-10
website: http://physics.nist.gov/cgi-bin/cuu/Value#mid

Value for deuteron mass energy equivalent in MeV
type: ConstantValue
has unit: MegaEV
informative reference: http://physics.nist.gov/cuu/Constants/bibliography.html
standard uncertainty: 0.000047
standard uncertainty SN: 4.7E-5
value: 1875.612793
value SN: 1.875612793E3
website: http://physics.nist.gov/cgi-bin/cuu/Value#mid

Deuteron Mass (amu)
type: ConstantValue
has unit: http://qudt.org/vocab/unit/U
informative reference: http://physics.nist.gov/cuu/Constants/bibliography.html
standard uncertainty: 0.000000000078
standard uncertainty SN: 7.8E-11
value: 2.013553212724
value SN: 2.013553212724E0
website: http://physics.nist.gov/cgi-bin/cuu/Value#mid

Value for deuteron molar mass
type: ConstantValue
has unit: KiloGM-PER-MOL
informative reference: http://physics.nist.gov/cuu/Constants/bibliography.html
standard uncertainty: 0.000000000000078
standard uncertainty SN: 7.8E-14
value: 0.002013553212724
value SN: 2.013553212724E-3
website: http://physics.nist.gov/cgi-bin/cuu/Value#mid

Value for deuteron-neutron magnetic moment ratio
type: ConstantValue
has unit: UNITLESS
informative reference: http://physics.nist.gov/cuu/Constants/bibliography.html
standard uncertainty: 0.00000011
standard uncertainty SN: 1.1E-7
value: -0.44820652
value SN: -4.4820652E-1
website: http://physics.nist.gov/cgi-bin/cuu/Value#mid

Value for deuteron-proton magnetic moment ratio
type: ConstantValue
has unit: UNITLESS
informative reference: http://physics.nist.gov/cuu/Constants/bibliography.html
standard uncertainty: 0.0000000024
standard uncertainty SN: 2.4E-9
value: 0.307012207
value SN: 3.07012207E-1
website: http://physics.nist.gov/cgi-bin/cuu/Value#mid

Value for deuteron-proton mass ratio
type: ConstantValue
has unit: UNITLESS
informative reference: http://physics.nist.gov/cuu/Constants/bibliography.html
standard uncertainty: 0.00000000022
standard uncertainty SN: 2.2E-10
value: 1.99900750108
value SN: 1.99900750108E0
website: http://physics.nist.gov/cgi-bin/cuu/Value#mid

Value for deuteron rms charge radius
type: ConstantValue
has unit: http://qudt.org/vocab/unit/M
informative reference: http://physics.nist.gov/cuu/Constants/bibliography.html
standard uncertainty: 0.0000000000000000028
standard uncertainty SN: 2.8E-18
value: 0.0000000000000021402
value SN: 2.1402E-15
website: http://physics.nist.gov/cgi-bin/cuu/Value#mid

Value for electric constant
type: ConstantValue
has unit: FARAD-PER-M
informative reference: http://physics.nist.gov/cuu/Constants/bibliography.html
value: 0.000000000008854187817
value SN: 8.854187817E-12
website: http://physics.nist.gov/cgi-bin/cuu/Value#mid

Value for electron charge to mass quotient
type: ConstantValue
has unit: C-PER-KiloGM
informative reference: http://physics.nist.gov/cuu/Constants/bibliography.html
standard uncertainty: 4400.0
standard uncertainty SN: 4.4E3
value: -175882015000.0
value SN: -1.75882015E11
website: http://physics.nist.gov/cgi-bin/cuu/Value#mid

Value for electron-deuteron magnetic moment ratio
type: ConstantValue
has unit: UNITLESS
informative reference: http://physics.nist.gov/cuu/Constants/bibliography.html
standard uncertainty: 0.000018
standard uncertainty SN: 1.8E-5
value: -2143.923498
value SN: -2.143923498E3
website: http://physics.nist.gov/cgi-bin/cuu/Value#mid

Value for electron-deuteron mass ratio
type: ConstantValue
has unit: UNITLESS
informative reference: http://physics.nist.gov/cuu/Constants/bibliography.html
standard uncertainty: 0.00000000000012
standard uncertainty SN: 1.2E-13
value: 0.00027244371093
value SN: 2.7244371093E-4
website: http://physics.nist.gov/cgi-bin/cuu/Value#mid

Value for electron g factor
type: ConstantValue
has unit: UNITLESS
informative reference: http://physics.nist.gov/cuu/Constants/bibliography.html
standard uncertainty: 0.00000000000035
standard uncertainty SN: 3.5E-13
value: -2.00231930436256
value SN: -2.00231930436256E0
website: http://physics.nist.gov/cgi-bin/cuu/Value#mid

Value for electron gyromagnetic ratio
type: ConstantValue
has unit: PER-T-SEC
informative reference: http://physics.nist.gov/cuu/Constants/bibliography.html
standard uncertainty: 4400.0
standard uncertainty SN: 4.4E3
value: 176085977000.0
value SN: 1.76085977E11
website: http://physics.nist.gov/cgi-bin/cuu/Value#mid

Value for electron gyromagnetic ratio over 2 pi
type: ConstantValue
has unit: MegaHZ-PER-T
informative reference: http://physics.nist.gov/cuu/Constants/bibliography.html
standard uncertainty: 0.0007
standard uncertainty SN: 7.0E-4
value: 28024.95364
value SN: 2.802495364E4
website: http://physics.nist.gov/cgi-bin/cuu/Value#mid

Value for electron magnetic moment
type: ConstantValue
has unit: J-PER-T
informative reference: http://physics.nist.gov/cuu/Constants/bibliography.html
standard uncertainty: 0.00000000000000000000000000000023
standard uncertainty SN: 2.3E-31
value: -0.00000000000000000000000928476377
value SN: -9.28476377E-24
website: http://physics.nist.gov/cgi-bin/cuu/Value#mid

Value for electron magnetic moment anomaly
type: ConstantValue
has unit: UNITLESS
informative reference: http://physics.nist.gov/cuu/Constants/bibliography.html
standard uncertainty: 0.00000000000074
standard uncertainty SN: 7.4E-13
value: 0.00115965218111
value SN: 1.15965218111E-3
website: http://physics.nist.gov/cgi-bin/cuu/Value#mid

Value for electron magnetic moment to Bohr magneton ratio
type: ConstantValue
has unit: UNITLESS
informative reference: http://physics.nist.gov/cuu/Constants/bibliography.html
standard uncertainty: 0.00000000000074
standard uncertainty SN: 7.4E-13
value: -1.00115965218111
value SN: -1.00115965218111E0
website: http://physics.nist.gov/cgi-bin/cuu/Value#mid

Value for electron magnetic moment to nuclear magneton ratio
type: ConstantValue
has unit: UNITLESS
informative reference: http://physics.nist.gov/cuu/Constants/bibliography.html
standard uncertainty: 0.0000008
standard uncertainty SN: 8.0E-7
value: -1838.28197092
value SN: -1.83828197092E3
website: http://physics.nist.gov/cgi-bin/cuu/Value#mid

Value for electron mass
type: ConstantValue
has unit: KiloGM
informative reference: http://physics.nist.gov/cuu/Constants/bibliography.html
standard uncertainty: 0.000000000000000000000000000000000000045
standard uncertainty SN: 4.5E-38
value: 0.000000000000000000000000000000910938215
value SN: 9.10938215E-31
website: http://physics.nist.gov/cgi-bin/cuu/Value#mid

Value for electron mass energy equivalent
type: ConstantValue
has unit: http://qudt.org/vocab/unit/J
informative reference: http://physics.nist.gov/cuu/Constants/bibliography.html
standard uncertainty: 0.0000000000000000000041
standard uncertainty SN: 4.1E-21
value: 0.0000000000000818710438
value SN: 8.18710438E-14
website: http://physics.nist.gov/cgi-bin/cuu/Value#mid

Value for electron mass energy equivalent in MeV
type: ConstantValue
has unit: MegaEV
informative reference: http://physics.nist.gov/cuu/Constants/bibliography.html
standard uncertainty: 0.000000013
standard uncertainty SN: 1.3E-8
value: 0.51099891
value SN: 5.1099891E-1
website: http://physics.nist.gov/cgi-bin/cuu/Value#mid

Electron Mass (amu)
type: ConstantValue
has unit: http://qudt.org/vocab/unit/U
informative reference: http://physics.nist.gov/cuu/Constants/bibliography.html
standard uncertainty: 0.00000000000023
standard uncertainty SN: 2.3E-13
value: 0.00054857990943
value SN: 5.4857990943E-4
website: http://physics.nist.gov/cgi-bin/cuu/Value#mid

Value for electron molar mass
type: ConstantValue
has unit: KiloGM-PER-MOL
informative reference: http://physics.nist.gov/cuu/Constants/bibliography.html
standard uncertainty: 0.00000000000000023
standard uncertainty SN: 2.3E-16
value: 0.00000054857990943
value SN: 5.4857990943E-7
website: http://physics.nist.gov/cgi-bin/cuu/Value#mid

Value for electron-muon magnetic moment ratio
type: ConstantValue
has unit: UNITLESS
informative reference: http://physics.nist.gov/cuu/Constants/bibliography.html
standard uncertainty: 0.0000052
standard uncertainty SN: 5.2E-6
value: 206.7669877
value SN: 2.067669877E2
website: http://physics.nist.gov/cgi-bin/cuu/Value#mid

Value for electron-muon mass ratio
type: ConstantValue
has unit: UNITLESS
informative reference: http://physics.nist.gov/cuu/Constants/bibliography.html
standard uncertainty: 0.00000000012
standard uncertainty SN: 1.2E-10
value: 0.00483633171
value SN: 4.83633171E-3
website: http://physics.nist.gov/cgi-bin/cuu/Value#mid

Value for electron-neutron magnetic moment ratio
type: ConstantValue
has unit: UNITLESS
informative reference: http://physics.nist.gov/cuu/Constants/bibliography.html
standard uncertainty: 0.00023
standard uncertainty SN: 2.3E-4
value: 960.9205
value SN: 9.609205E2
website: http://physics.nist.gov/cgi-bin/cuu/Value#mid

Value for electron-neutron mass ratio
type: ConstantValue
has unit: UNITLESS
informative reference: http://physics.nist.gov/cuu/Constants/bibliography.html
standard uncertainty: 0.00000000000033
standard uncertainty SN: 3.3E-13
value: 0.00054386734459
value SN: 5.4386734459E-4
website: http://physics.nist.gov/cgi-bin/cuu/Value#mid

Value for electron-proton magnetic moment ratio
type: ConstantValue
has unit: UNITLESS
informative reference: http://physics.nist.gov/cuu/Constants/bibliography.html
standard uncertainty: 0.0000054
standard uncertainty SN: 5.4E-6
value: -658.2106848
value SN: -6.582106848E2
website: http://physics.nist.gov/cgi-bin/cuu/Value#mid

Value for electron-proton mass ratio
type: ConstantValue
has unit: UNITLESS
informative reference: http://physics.nist.gov/cuu/Constants/bibliography.html
standard uncertainty: 0.00000000000024
standard uncertainty SN: 2.4E-13
value: 0.00054461702177
value SN: 5.4461702177E-4
website: http://physics.nist.gov/cgi-bin/cuu/Value#mid

Value for electron-tau mass ratio
type: ConstantValue
has unit: UNITLESS
informative reference: http://physics.nist.gov/cuu/Constants/bibliography.html
standard uncertainty: 0.000000047
standard uncertainty SN: 4.7E-8
value: 0.000287564
value SN: 2.87564E-4
website: http://physics.nist.gov/cgi-bin/cuu/Value#mid

Value for electron to alpha particle mass ratio
type: ConstantValue
has unit: UNITLESS
informative reference: http://physics.nist.gov/cuu/Constants/bibliography.html
standard uncertainty: 0.000000000000058
standard uncertainty SN: 5.8E-14
value: 0.00013709335557
value SN: 1.3709335557E-4
website: http://physics.nist.gov/cgi-bin/cuu/Value#mid

Value for electron to shielded helion magnetic moment ratio
type: ConstantValue
has unit: UNITLESS
informative reference: http://physics.nist.gov/cuu/Constants/bibliography.html
standard uncertainty: 0.00001
standard uncertainty SN: 1.0E-5
value: 864.058257
value SN: 8.64058257E2
website: http://physics.nist.gov/cgi-bin/cuu/Value#mid

Value for electron to shielded proton magnetic moment ratio
type: ConstantValue
has unit: UNITLESS
informative reference: http://physics.nist.gov/cuu/Constants/bibliography.html
standard uncertainty: 0.0000072
standard uncertainty SN: 7.2E-6
value: -658.2275971
value SN: -6.582275971E2
website: http://physics.nist.gov/cgi-bin/cuu/Value#mid

Value for electron volt-atomic mass unit relationship
type: ConstantValue
has unit: http://qudt.org/vocab/unit/U
informative reference: http://physics.nist.gov/cuu/Constants/bibliography.html
standard uncertainty: 0.000000000000000027
standard uncertainty SN: 2.7E-17
value: 0.000000001073544188
value SN: 1.073544188E-9
website: http://physics.nist.gov/cgi-bin/cuu/Value#mid

Value for electron volt-hartree relationship
type: ConstantValue
has unit: E h
informative reference: http://physics.nist.gov/cuu/Constants/bibliography.html
standard uncertainty: 0.00000000092
standard uncertainty SN: 9.2E-10
value: 0.0367493254
value SN: 3.67493254E-2
website: http://physics.nist.gov/cgi-bin/cuu/Value#mid

Value for electron volt-hertz relationship
type: ConstantValue
has unit: HZ
informative reference: http://physics.nist.gov/cuu/Constants/bibliography.html
standard uncertainty: 6000000.0
standard uncertainty SN: 6.0E6
value: 241798945400000.0
value SN: 2.417989454E14
website: http://physics.nist.gov/cgi-bin/cuu/Value#mid

Value for electron volt-inverse meter relationship
type: ConstantValue
has unit: PER-M
informative reference: http://physics.nist.gov/cuu/Constants/bibliography.html
standard uncertainty: 0.02
standard uncertainty SN: 2.0E-2
value: 806554.465
value SN: 8.06554465E5
website: http://physics.nist.gov/cgi-bin/cuu/Value#mid

Value for electron volt-joule relationship
type: ConstantValue
has unit: http://qudt.org/vocab/unit/J
informative reference: http://physics.nist.gov/cuu/Constants/bibliography.html
standard uncertainty: 0.000000000000000000000000004
standard uncertainty SN: 4.0E-27
value: 0.0000000000000000001602176487
value SN: 1.602176487E-19
website: http://physics.nist.gov/cgi-bin/cuu/Value#mid

Value for electron volt-kelvin relationship
type: ConstantValue
has unit: http://qudt.org/vocab/unit/K
informative reference: http://physics.nist.gov/cuu/Constants/bibliography.html
standard uncertainty: 0.02
standard uncertainty SN: 2.0E-2
value: 11604.505
value SN: 1.1604505E4
website: http://physics.nist.gov/cgi-bin/cuu/Value#mid

Value for electron volt-kilogram relationship
type: ConstantValue
has unit: KiloGM
informative reference: http://physics.nist.gov/cuu/Constants/bibliography.html
standard uncertainty SN: 4.4E-44
value SN: 1.782661758E-36
website: http://physics.nist.gov/cgi-bin/cuu/Value#mid

Value for elementary charge
type: ConstantValue
has unit: http://qudt.org/vocab/unit/C
informative reference: http://physics.nist.gov/cuu/Constants/bibliography.html
standard uncertainty: 0.000000000000000000000000004
standard uncertainty SN: 4.0E-27
value: 0.0000000000000000001602176487
value SN: 1.602176487E-19
website: http://physics.nist.gov/cgi-bin/cuu/Value#mid

Value for elementary charge over h
type: ConstantValue
has unit: A-PER-J
informative reference: http://physics.nist.gov/cuu/Constants/bibliography.html
standard uncertainty: 6000000.0
standard uncertainty SN: 6.0E6
value: 241798945400000.0
value SN: 2.417989454E14
website: http://physics.nist.gov/cgi-bin/cuu/Value#mid

Value for Faraday constant
type: ConstantValue
has unit: C-PER-MOL
informative reference: http://physics.nist.gov/cuu/Constants/bibliography.html
standard uncertainty: 0.0024
standard uncertainty SN: 2.4E-3
value: 96485.3399
value SN: 9.64853399E4
website: http://physics.nist.gov/cgi-bin/cuu/Value#mid

Faraday constant for conventional electric current
type: ConstantValue
has unit: C-PER-MOL
value: 96485.33212
value SN: 9.648533212E4
website: http://physics.nist.gov/cgi-bin/cuu/Value#mid

Value for Fermi coupling constant
type: ConstantValue
has unit: PER-GigaEV2
informative reference: http://physics.nist.gov/cuu/Constants/bibliography.html
standard uncertainty: 0.0000000001
standard uncertainty SN: 1.0E-10
value: 0.0000116637
value SN: 1.16637E-5
website: http://physics.nist.gov/cgi-bin/cuu/Value#mid

Value for fine-structure constant
type: ConstantValue
has unit: UNITLESS
informative reference: http://physics.nist.gov/cuu/Constants/bibliography.html
standard uncertainty: 0.000000000005
standard uncertainty SN: 5.0E-12
value: 0.0072973525376
value SN: 7.2973525376E-3
website: http://physics.nist.gov/cgi-bin/cuu/Value#mid

Value for first radiation constant
type: ConstantValue
has unit: W-M2
informative reference: http://physics.nist.gov/cuu/Constants/bibliography.html
standard uncertainty: 0.000000000000000000000019
standard uncertainty SN: 1.9E-23
value: 0.000000000000000374177118
value SN: 3.74177118E-16
website: http://physics.nist.gov/cgi-bin/cuu/Value#mid

Value for first radiation constant for spectral radiance
type: ConstantValue
has unit: W-M2-PER-SR
informative reference: http://physics.nist.gov/cuu/Constants/bibliography.html
standard uncertainty: 0.0000000000000000000000059
standard uncertainty SN: 5.9E-24
value: 0.0000000000000001191042759
value SN: 1.191042759E-16
website: http://physics.nist.gov/cgi-bin/cuu/Value#mid

Value for gravitational constant
type: ConstantValue
has unit: N-M2-PER-KiloGM2
informative reference: https://en.wikipedia.org/wiki/Gravitational_constant
value: 0.00000000006674
value SN: 6.674E-11

Value for hartree-atomic mass unit relationship
type: ConstantValue
has unit: http://qudt.org/vocab/unit/U
informative reference: http://physics.nist.gov/cuu/Constants/bibliography.html
standard uncertainty: 0.000000000000000042
standard uncertainty SN: 4.2E-17
value: 0.000000029212622986
value SN: 2.9212622986E-8
website: http://physics.nist.gov/cgi-bin/cuu/Value#mid

Value for hartree-electron volt relationship
type: ConstantValue
has unit: EV
informative reference: http://physics.nist.gov/cuu/Constants/bibliography.html
standard uncertainty: 0.00000068
standard uncertainty SN: 6.8E-7
value: 27.21138386
value SN: 2.721138386E1
website: http://physics.nist.gov/cgi-bin/cuu/Value#mid

Value for Hartree energy
type: ConstantValue
has unit: http://qudt.org/vocab/unit/J
informative reference: http://physics.nist.gov/cuu/Constants/bibliography.html
standard uncertainty: 0.00000000000000000000000022
standard uncertainty SN: 2.2E-25
value: 0.00000000000000000435974394
value SN: 4.35974394E-18
website: http://physics.nist.gov/cgi-bin/cuu/Value#mid

Value for Hartree energy in eV
type: ConstantValue
has unit: EV
informative reference: http://physics.nist.gov/cuu/Constants/bibliography.html
standard uncertainty: 0.00000068
standard uncertainty SN: 6.8E-7
value: 27.21138386
value SN: 2.721138386E1
website: http://physics.nist.gov/cgi-bin/cuu/Value#mid

Value for hartree-hertz relationship
type: ConstantValue
has unit: HZ
informative reference: http://physics.nist.gov/cuu/Constants/bibliography.html
standard uncertainty: 44000.0
standard uncertainty SN: 4.4E4
value: 6579683920722000.0
value SN: 6.579683920722E15
website: http://physics.nist.gov/cgi-bin/cuu/Value#mid

Value for hartree-inverse meter relationship
type: ConstantValue
has unit: PER-M
informative reference: http://physics.nist.gov/cuu/Constants/bibliography.html
standard uncertainty: 0.00015
standard uncertainty SN: 1.5E-4
value: 21947463.13705
value SN: 2.194746313705E7
website: http://physics.nist.gov/cgi-bin/cuu/Value#mid

Value for hartree-joule relationship
type: ConstantValue
has unit: http://qudt.org/vocab/unit/J
informative reference: http://physics.nist.gov/cuu/Constants/bibliography.html
standard uncertainty: 0.00000000000000000000000022
standard uncertainty SN: 2.2E-25
value: 0.00000000000000000435974394
value SN: 4.35974394E-18
website: http://physics.nist.gov/cgi-bin/cuu/Value#mid

Value for hartree-kelvin relationship
type: ConstantValue
has unit: http://qudt.org/vocab/unit/K
informative reference: http://physics.nist.gov/cuu/Constants/bibliography.html
standard uncertainty: 0.55
standard uncertainty SN: 5.5E-1
value: 315774.65
value SN: 3.1577465E5
website: http://physics.nist.gov/cgi-bin/cuu/Value#mid

Value for hartree-kilogram relationship
type: ConstantValue
has unit: KiloGM
informative reference: http://physics.nist.gov/cuu/Constants/bibliography.html
standard uncertainty SN: 2.4E-42
value SN: 4.85086934E-35
website: http://physics.nist.gov/cgi-bin/cuu/Value#mid

Value for helion-electron mass ratio
type: ConstantValue
has unit: UNITLESS
informative reference: http://physics.nist.gov/cuu/Constants/bibliography.html
standard uncertainty: 0.0000052
standard uncertainty SN: 5.2E-6
value: 5495.8852765
value SN: 5.4958852765E3
website: http://physics.nist.gov/cgi-bin/cuu/Value#mid

Value for helion mass
type: ConstantValue
has unit: KiloGM
informative reference: http://physics.nist.gov/cuu/Constants/bibliography.html
standard uncertainty: 0.00000000000000000000000000000000025
standard uncertainty SN: 2.5E-34
value: 0.00000000000000000000000000500641192
value SN: 5.00641192E-27
website: http://physics.nist.gov/cgi-bin/cuu/Value#mid

Value for helion mass energy equivalent
type: ConstantValue
has unit: http://qudt.org/vocab/unit/J
informative reference: http://physics.nist.gov/cuu/Constants/bibliography.html
standard uncertainty: 0.000000000000000022
standard uncertainty SN: 2.2E-17
value: 0.000000000449953864
value SN: 4.49953864E-10
website: http://physics.nist.gov/cgi-bin/cuu/Value#mid

Value for helion mass energy equivalent in MeV
type: ConstantValue
has unit: MegaEV
informative reference: http://physics.nist.gov/cuu/Constants/bibliography.html
standard uncertainty: 0.00007
standard uncertainty SN: 7.0E-5
value: 2808.391383
value SN: 2.808391383E3
website: http://physics.nist.gov/cgi-bin/cuu/Value#mid

Helion Mass (amu)
type: ConstantValue
has unit: http://qudt.org/vocab/unit/U
informative reference: http://physics.nist.gov/cuu/Constants/bibliography.html
standard uncertainty: 0.0000000026
standard uncertainty SN: 2.6E-9
value: 3.0149322473
value SN: 3.0149322473E0
website: http://physics.nist.gov/cgi-bin/cuu/Value#mid

Value for helion molar mass
type: ConstantValue
has unit: KiloGM-PER-MOL
informative reference: http://physics.nist.gov/cuu/Constants/bibliography.html
standard uncertainty: 0.0000000000026
standard uncertainty SN: 2.6E-12
value: 0.0030149322473
value SN: 3.0149322473E-3
website: http://physics.nist.gov/cgi-bin/cuu/Value#mid

Value for helion-proton mass ratio
type: ConstantValue
has unit: UNITLESS
informative reference: http://physics.nist.gov/cuu/Constants/bibliography.html
standard uncertainty: 0.0000000026
standard uncertainty SN: 2.6E-9
value: 2.9931526713
value SN: 2.9931526713E0
website: http://physics.nist.gov/cgi-bin/cuu/Value#mid

Value for hertz-atomic mass unit relationship
type: ConstantValue
has unit: http://qudt.org/vocab/unit/U
informative reference: http://physics.nist.gov/cuu/Constants/bibliography.html
standard uncertainty: 0.0000000000000000000000000000000064
standard uncertainty SN: 6.4E-33
value: 0.0000000000000000000000044398216294
value SN: 4.4398216294E-24
website: http://physics.nist.gov/cgi-bin/cuu/Value#mid

Value for hertz-electron volt relationship
type: ConstantValue
has unit: EV
informative reference: http://physics.nist.gov/cuu/Constants/bibliography.html
standard uncertainty: 0.0000000000000000000001
standard uncertainty SN: 1.0E-22
value: 0.00000000000000413566733
value SN: 4.13566733E-15
website: http://physics.nist.gov/cgi-bin/cuu/Value#mid

Value for hertz-hartree relationship
type: ConstantValue
has unit: E h
informative reference: http://physics.nist.gov/cuu/Constants/bibliography.html
standard uncertainty: 0.000000000001
standard uncertainty SN: 1.0E-12
value: 0.0000000000000001519829846006
value SN: 1.519829846006E-16
website: http://physics.nist.gov/cgi-bin/cuu/Value#mid

Value for hertz-inverse meter relationship
type: ConstantValue
has unit: PER-M
informative reference: http://physics.nist.gov/cuu/Constants/bibliography.html
value: 0.000000003335640951
value SN: 3.335640951E-9
website: http://physics.nist.gov/cgi-bin/cuu/Value#mid

Value for hertz-joule relationship
type: ConstantValue
has unit: http://qudt.org/vocab/unit/J
informative reference: http://physics.nist.gov/cuu/Constants/bibliography.html
standard uncertainty SN: 3.3E-41
value SN: 6.62606896E-34
website: http://physics.nist.gov/cgi-bin/cuu/Value#mid

Value for hertz-kelvin relationship
type: ConstantValue
has unit: http://qudt.org/vocab/unit/K
informative reference: http://physics.nist.gov/cuu/Constants/bibliography.html
standard uncertainty: 0.000000000000000084
standard uncertainty SN: 8.4E-17
value: 0.000000000047992374
value SN: 4.7992374E-11
website: http://physics.nist.gov/cgi-bin/cuu/Value#mid

Value for hertz-kilogram relationship
type: ConstantValue
has unit: KiloGM
informative reference: http://physics.nist.gov/cuu/Constants/bibliography.html
standard uncertainty SN: 3.7E-58
value SN: 7.372496E-51
website: http://physics.nist.gov/cgi-bin/cuu/Value#mid

Value for inverse fine-structure constant
type: ConstantValue
has unit: UNITLESS
informative reference: http://physics.nist.gov/cuu/Constants/bibliography.html
standard uncertainty: 0.000000094
standard uncertainty SN: 9.4E-8
value: 137.035999679
value SN: 1.37035999679E2
website: http://physics.nist.gov/cgi-bin/cuu/Value#mid

Value for inverse meter-atomic mass unit relationship
type: ConstantValue
has unit: http://qudt.org/vocab/unit/U
informative reference: http://physics.nist.gov/cuu/Constants/bibliography.html
standard uncertainty: 0.0000000000000000000000019
standard uncertainty SN: 1.9E-24
value: 0.0000000000000013310250394
value SN: 1.3310250394E-15
website: http://physics.nist.gov/cgi-bin/cuu/Value#mid

Value for inverse meter-electron volt relationship
type: ConstantValue
has unit: EV
informative reference: http://physics.nist.gov/cuu/Constants/bibliography.html
standard uncertainty: 0.000000000000031
standard uncertainty SN: 3.1E-14
value: 0.000001239841875
value SN: 1.239841875E-6
website: http://physics.nist.gov/cgi-bin/cuu/Value#mid

Value for inverse meter-hartree relationship
type: ConstantValue
has unit: E h
informative reference: http://physics.nist.gov/cuu/Constants/bibliography.html
standard uncertainty: 0.0000000000000000003
standard uncertainty SN: 3.0E-19
value: 0.0000000455633525276
value SN: 4.55633525276E-8
website: http://physics.nist.gov/cgi-bin/cuu/Value#mid

Value for inverse meter-hertz relationship
type: ConstantValue
has unit: HZ
informative reference: http://physics.nist.gov/cuu/Constants/bibliography.html
value: 299792458.0
value SN: 2.99792458E8
website: http://physics.nist.gov/cgi-bin/cuu/Value#mid

Value for inverse meter-joule relationship
type: ConstantValue
has unit: http://qudt.org/vocab/unit/J
informative reference: http://physics.nist.gov/cuu/Constants/bibliography.html
standard uncertainty: 0.0000000000000000000000000000000099
standard uncertainty SN: 9.9E-33
value: 0.0000000000000000000000001986445501
value SN: 1.986445501E-25
website: http://physics.nist.gov/cgi-bin/cuu/Value#mid

Value for inverse meter-kelvin relationship
type: ConstantValue
has unit: http://qudt.org/vocab/unit/K
informative reference: http://physics.nist.gov/cuu/Constants/bibliography.html
standard uncertainty: 0.000000025
standard uncertainty SN: 2.5E-8
value: 0.014387752
value SN: 1.4387752E-2
website: http://physics.nist.gov/cgi-bin/cuu/Value#mid

Value for inverse meter-kilogram relationship
type: ConstantValue
has unit: KiloGM
informative reference: http://physics.nist.gov/cuu/Constants/bibliography.html
standard uncertainty SN: 1.1E-49
value SN: 2.2102187E-42
website: http://physics.nist.gov/cgi-bin/cuu/Value#mid

Value for inverse of conductance quantum
type: ConstantValue
has unit: OHM
informative reference: http://physics.nist.gov/cuu/Constants/bibliography.html
standard uncertainty: 0.0000088
standard uncertainty SN: 8.8E-6
value: 12906.4037787
value SN: 1.29064037787E4
website: http://physics.nist.gov/cgi-bin/cuu/Value#mid

Value for Josephson constant
type: ConstantValue
has unit: HZ-PER-V
informative reference: http://physics.nist.gov/cuu/Constants/bibliography.html
standard uncertainty: 12000000.0
standard uncertainty SN: 1.2E7
value: 483597891000000.0
value SN: 4.83597891E14
website: http://physics.nist.gov/cgi-bin/cuu/Value#mid

Value for joule-atomic mass unit relationship
type: ConstantValue
has unit: http://qudt.org/vocab/unit/U
informative reference: http://physics.nist.gov/cuu/Constants/bibliography.html
standard uncertainty: 330.0
standard uncertainty SN: 3.3E2
value: 6700536410.0
value SN: 6.70053641E9
website: http://physics.nist.gov/cgi-bin/cuu/Value#mid

Value for joule-electron volt relationship
type: ConstantValue
has unit: EV
informative reference: http://physics.nist.gov/cuu/Constants/bibliography.html
standard uncertainty: 160000000000.0
standard uncertainty SN: 1.6E11
value: 6241509650000000000.0
value SN: 6.24150965E18
website: http://physics.nist.gov/cgi-bin/cuu/Value#mid

Value for joule-hartree relationship
type: ConstantValue
has unit: E h
informative reference: http://physics.nist.gov/cuu/Constants/bibliography.html
standard uncertainty: 11000000000.0
standard uncertainty SN: 1.1E10
value: 229371269000000000.0
value SN: 2.29371269E17
website: http://physics.nist.gov/cgi-bin/cuu/Value#mid

Value for joule-hertz relationship
type: ConstantValue
has unit: HZ
informative reference: http://physics.nist.gov/cuu/Constants/bibliography.html
standard uncertainty: 75000000000000000000000000.0
standard uncertainty SN: 7.5E25
value: 1509190450000000000000000000000000.0
value SN: 1.50919045E33
website: http://physics.nist.gov/cgi-bin/cuu/Value#mid

Value for joule-inverse meter relationship
type: ConstantValue
has unit: PER-M
informative reference: http://physics.nist.gov/cuu/Constants/bibliography.html
standard uncertainty: 250000000000000000.0
standard uncertainty SN: 2.5E17
value: 5034117470000000000000000.0
value SN: 5.03411747E24
website: http://physics.nist.gov/cgi-bin/cuu/Value#mid

Value for joule-kelvin relationship
type: ConstantValue
has unit: http://qudt.org/vocab/unit/K
informative reference: http://physics.nist.gov/cuu/Constants/bibliography.html
standard uncertainty: 130000000000000000.0
standard uncertainty SN: 1.3E17
value: 72429630000000000000000.0
value SN: 7.242963E22
website: http://physics.nist.gov/cgi-bin/cuu/Value#mid

Value for joule-kilogram relationship
type: ConstantValue
has unit: KiloGM
informative reference: http://physics.nist.gov/cuu/Constants/bibliography.html
value: 0.00000000000000001112650056
value SN: 1.112650056E-17
website: http://physics.nist.gov/cgi-bin/cuu/Value#mid

Value for kelvin-atomic mass unit relationship
type: ConstantValue
has unit: http://qudt.org/vocab/unit/U
informative reference: http://physics.nist.gov/cuu/Constants/bibliography.html
standard uncertainty: 0.00000000000000000016
standard uncertainty SN: 1.6E-19
value: 0.00000000000009251098
value SN: 9.251098E-14
website: http://physics.nist.gov/cgi-bin/cuu/Value#mid

Value for kelvin-electron volt relationship
type: ConstantValue
has unit: EV
informative reference: http://physics.nist.gov/cuu/Constants/bibliography.html
standard uncertainty: 0.00000000015
standard uncertainty SN: 1.5E-10
value: 0.00008617343
value SN: 8.617343E-5
website: http://physics.nist.gov/cgi-bin/cuu/Value#mid

Value for kelvin-hartree relationship
type: ConstantValue
has unit: E h
informative reference: http://physics.nist.gov/cuu/Constants/bibliography.html
standard uncertainty: 0.0000000000055
standard uncertainty SN: 5.5E-12
value: 0.0000031668153
value SN: 3.1668153E-6
website: http://physics.nist.gov/cgi-bin/cuu/Value#mid

Value for kelvin-hertz relationship
type: ConstantValue
has unit: HZ
informative reference: http://physics.nist.gov/cuu/Constants/bibliography.html
standard uncertainty: 36000.0
standard uncertainty SN: 3.6E4
value: 20836644000.0
value SN: 2.0836644E10
website: http://physics.nist.gov/cgi-bin/cuu/Value#mid

Value for kelvin-inverse meter relationship
type: ConstantValue
has unit: PER-M
informative reference: http://physics.nist.gov/cuu/Constants/bibliography.html
standard uncertainty: 0.00012
standard uncertainty SN: 1.2E-4
value: 69.50356
value SN: 6.950356E1
website: http://physics.nist.gov/cgi-bin/cuu/Value#mid

Value for kelvin-joule relationship
type: ConstantValue
has unit: http://qudt.org/vocab/unit/J
informative reference: http://physics.nist.gov/cuu/Constants/bibliography.html
standard uncertainty: 0.000000000000000000000000000024
standard uncertainty SN: 2.4E-29
value: 0.000000000000000000000013806504
value SN: 1.3806504E-23
website: http://physics.nist.gov/cgi-bin/cuu/Value#mid

Value for kelvin-kilogram relationship
type: ConstantValue
has unit: KiloGM
informative reference: http://physics.nist.gov/cuu/Constants/bibliography.html
standard uncertainty SN: 2.7E-46
value SN: 1.5361807E-40
website: http://physics.nist.gov/cgi-bin/cuu/Value#mid

Value for kilogram-atomic mass unit relationship
type: ConstantValue
has unit: http://qudt.org/vocab/unit/U
informative reference: http://physics.nist.gov/cuu/Constants/bibliography.html
standard uncertainty: 30000000000000000000.0
standard uncertainty SN: 3.0E19
value: 602214179000000000000000000.0
value SN: 6.02214179E26
website: http://physics.nist.gov/cgi-bin/cuu/Value#mid

Value for kilogram-electron volt relationship
type: ConstantValue
has unit: EV
informative reference: http://physics.nist.gov/cuu/Constants/bibliography.html
standard uncertainty: 14000000000000000000000000000.0
standard uncertainty SN: 1.4E28
value: 560958912000000000000000000000000000.0
value SN: 5.60958912E35
website: http://physics.nist.gov/cgi-bin/cuu/Value#mid

Value for kilogram-hartree relationship
type: ConstantValue
has unit: E h
informative reference: http://physics.nist.gov/cuu/Constants/bibliography.html
standard uncertainty: 1000000000000000000000000000.0
standard uncertainty SN: 1.0E27
value: 20614861600000000000000000000000000.0
value SN: 2.06148616E34
website: http://physics.nist.gov/cgi-bin/cuu/Value#mid

Value for kilogram-hertz relationship
type: ConstantValue
has unit: HZ
informative reference: http://physics.nist.gov/cuu/Constants/bibliography.html
standard uncertainty SN: 6.8E42
value SN: 1.356392733E50
website: http://physics.nist.gov/cgi-bin/cuu/Value#mid

Value for kilogram-inverse meter relationship
type: ConstantValue
has unit: PER-M
informative reference: http://physics.nist.gov/cuu/Constants/bibliography.html
standard uncertainty: 23000000000000000000000000000000000.0
standard uncertainty SN: 2.3E34
value SN: 4.52443915E41
website: http://physics.nist.gov/cgi-bin/cuu/Value#mid

Value for kilogram-joule relationship
type: ConstantValue
has unit: http://qudt.org/vocab/unit/J
informative reference: http://physics.nist.gov/cuu/Constants/bibliography.html
value: 89875517870000000.0
value SN: 8.987551787E16
website: http://physics.nist.gov/cgi-bin/cuu/Value#mid

Value for kilogram-kelvin relationship
type: ConstantValue
has unit: http://qudt.org/vocab/unit/K
informative reference: http://physics.nist.gov/cuu/Constants/bibliography.html
standard uncertainty: 11000000000000000000000000000000000.0
standard uncertainty SN: 1.1E34
value SN: 6.509651E39
website: http://physics.nist.gov/cgi-bin/cuu/Value#mid

Value for lattice parameter of silicon
type: ConstantValue
has unit: http://qudt.org/vocab/unit/M
informative reference: http://physics.nist.gov/cuu/Constants/bibliography.html
standard uncertainty: 0.000000000000000014
standard uncertainty SN: 1.4E-17
value: 0.000000000543102064
value SN: 5.43102064E-10
website: http://physics.nist.gov/cgi-bin/cuu/Value#mid

Value for lattice spacing of silicon
type: ConstantValue
has unit: http://qudt.org/vocab/unit/M
informative reference: http://physics.nist.gov/cuu/Constants/bibliography.html
standard uncertainty: 0.000000000000000005
standard uncertainty SN: 5.0E-18
value: 0.0000000001920155762
value SN: 1.920155762E-10
website: http://physics.nist.gov/cgi-bin/cuu/Value#mid

Value for Loschmidt constant 273.15 K 101.325 kPa
type: ConstantValue
has unit: PER-M3
informative reference: http://physics.nist.gov/cuu/Constants/bibliography.html
standard uncertainty: 47000000000000000000.0
standard uncertainty SN: 4.7E19
value: 26867774000000000000000000.0
value SN: 2.6867774E25
website: http://physics.nist.gov/cgi-bin/cuu/Value#mid

Value for magnetic constant
type: ConstantValue
has unit: FARAD-PER-M
informative reference: http://physics.nist.gov/cuu/Constants/bibliography.html
value: 0.0000012566370614
value SN: 1.2566370614E-6
website: http://physics.nist.gov/cgi-bin/cuu/Value#mid

Value for magnetic flux quantum
type: ConstantValue
has unit: WB
informative reference: http://physics.nist.gov/cuu/Constants/bibliography.html
standard uncertainty: 0.000000000000000000000052
standard uncertainty SN: 5.2E-23
value: 0.000000000000002067833667
value SN: 2.067833667E-15
website: http://physics.nist.gov/cgi-bin/cuu/Value#mid

Value for Mo x unit
type: ConstantValue
has unit: http://qudt.org/vocab/unit/M
informative reference: http://physics.nist.gov/cuu/Constants/bibliography.html
standard uncertainty: 0.000000000000000000053
standard uncertainty SN: 5.3E-20
value: 0.000000000000100209955
value SN: 1.00209955E-13
website: http://physics.nist.gov/cgi-bin/cuu/Value#mid

Value for molar gas constant
type: ConstantValue
has unit: J-PER-MOL-K
informative reference: http://physics.nist.gov/cuu/Constants/bibliography.html
standard uncertainty: 0.000015
standard uncertainty SN: 1.5E-5
value: 8.31446261815324
value SN: 8.31446261815324E0
website: http://physics.nist.gov/cgi-bin/cuu/Value#mid

Value for molar mass constant
type: ConstantValue
has unit: KiloGM-PER-MOL
informative reference: http://physics.nist.gov/cuu/Constants/bibliography.html
value: 0.001
value SN: 1.0E-3
website: http://physics.nist.gov/cgi-bin/cuu/Value#mid

Value for molar mass of carbon-12
type: ConstantValue
has unit: KiloGM-PER-MOL
informative reference: http://physics.nist.gov/cuu/Constants/bibliography.html
value: 0.012
value SN: 1.2E-2
website: http://physics.nist.gov/cgi-bin/cuu/Value#mid

Value for molar Planck constant
type: ConstantValue
has unit: J-SEC-PER-MOL
informative reference: http://physics.nist.gov/cuu/Constants/bibliography.html
standard uncertainty: 0.00000000000000000057
standard uncertainty SN: 5.7E-19
value: 0.00000000039903126821
value SN: 3.9903126821E-10
website: http://physics.nist.gov/cgi-bin/cuu/Value#mid

Value for molar Planck constant times c
type: ConstantValue
has unit: J-M-PER-MOL
informative reference: http://physics.nist.gov/cuu/Constants/bibliography.html
standard uncertainty: 0.00000000017
standard uncertainty SN: 1.7E-10
value: 0.11962656472
value SN: 1.1962656472E-1
website: http://physics.nist.gov/cgi-bin/cuu/Value#mid

Value for molar volume of ideal gas 273.15 K 101.325 kPa
type: ConstantValue
deprecated: true
has unit: M3-PER-MOL
informative reference: http://physics.nist.gov/cuu/Constants/bibliography.html
standard uncertainty: 0.000000039
standard uncertainty SN: 3.9E-8
value: 0.022710981
value SN: 2.2710981E-2
website: http://physics.nist.gov/cgi-bin/cuu/Value#mid

Value for molar volume of ideal gas 273.15 K 101.325 kPa
type: ConstantValue
has unit: M3-PER-MOL
informative reference: http://physics.nist.gov/cuu/Constants/bibliography.html
standard uncertainty: 0.0
standard uncertainty SN: 0.0E0
value: 0.02271095464
value SN: 2.271095464E-2
website: http://physics.nist.gov/cgi-bin/cuu/Value#mid

Value for molar volume of ideal gas 273.15 K 101.325 kPa
type: ConstantValue
has unit: M3-PER-MOL
informative reference: http://physics.nist.gov/cuu/Constants/bibliography.html
standard uncertainty: 0.0
standard uncertainty SN: 0.0E0
value: 0.02241396954
value SN: 2.241396954E-2
website: http://physics.nist.gov/cgi-bin/cuu/Value#mid

Value for molar volume of silicon
type: ConstantValue
has unit: M3-PER-MOL
informative reference: http://physics.nist.gov/cuu/Constants/bibliography.html
standard uncertainty: 0.0000000000011
standard uncertainty SN: 1.1E-12
value: 0.0000120588349
value SN: 1.20588349E-5
website: http://physics.nist.gov/cgi-bin/cuu/Value#mid

Value for muon Compton wavelength
type: ConstantValue
has unit: http://qudt.org/vocab/unit/M
informative reference: http://physics.nist.gov/cuu/Constants/bibliography.html
standard uncertainty: 0.0000000000000000000003
standard uncertainty SN: 3.0E-22
value: 0.00000000000001173444104
value SN: 1.173444104E-14
website: http://physics.nist.gov/cgi-bin/cuu/Value#mid

Value for muon Compton wavelength over 2 pi
type: ConstantValue
has unit: http://qudt.org/vocab/unit/M
informative reference: http://physics.nist.gov/cuu/Constants/bibliography.html
standard uncertainty: 0.000000000000000000000047
standard uncertainty SN: 4.7E-23
value: 0.000000000000001867594295
value SN: 1.867594295E-15
website: http://physics.nist.gov/cgi-bin/cuu/Value#mid

Value for muon-electron mass ratio
type: ConstantValue
has unit: UNITLESS
informative reference: http://physics.nist.gov/cuu/Constants/bibliography.html
standard uncertainty: 0.0000052
standard uncertainty SN: 5.2E-6
value: 206.7682823
value SN: 2.067682823E2
website: http://physics.nist.gov/cgi-bin/cuu/Value#mid

Value for muon g factor
type: ConstantValue
has unit: UNITLESS
informative reference: http://physics.nist.gov/cuu/Constants/bibliography.html
standard uncertainty: 0.0000000012
standard uncertainty SN: 1.2E-9
value: -2.0023318414
value SN: -2.0023318414E0
website: http://physics.nist.gov/cgi-bin/cuu/Value#mid

Value for muon magnetic moment
type: ConstantValue
has unit: J-PER-T
informative reference: http://physics.nist.gov/cuu/Constants/bibliography.html
standard uncertainty: 0.0000000000000000000000000000000016
standard uncertainty SN: 1.6E-33
value: -0.0000000000000000000000000449044786
value SN: -4.49044786E-26
website: http://physics.nist.gov/cgi-bin/cuu/Value#mid

Value for muon magnetic moment anomaly
type: ConstantValue
has unit: UNITLESS
informative reference: http://physics.nist.gov/cuu/Constants/bibliography.html
standard uncertainty: 0.0000000006
standard uncertainty SN: 6.0E-10
value: 0.00116592069
value SN: 1.16592069E-3
website: http://physics.nist.gov/cgi-bin/cuu/Value#mid

Value for muon magnetic moment to Bohr magneton ratio
type: ConstantValue
has unit: UNITLESS
informative reference: http://physics.nist.gov/cuu/Constants/bibliography.html
standard uncertainty: 0.00000000012
standard uncertainty SN: 1.2E-10
value: -0.00484197049
value SN: -4.84197049E-3
website: http://physics.nist.gov/cgi-bin/cuu/Value#mid

Value for muon magnetic moment to nuclear magneton ratio
type: ConstantValue
has unit: UNITLESS
informative reference: http://physics.nist.gov/cuu/Constants/bibliography.html
standard uncertainty: 0.00000023
standard uncertainty SN: 2.3E-7
value: -8.89059705
value SN: -8.89059705E0
website: http://physics.nist.gov/cgi-bin/cuu/Value#mid

Value for muon mass
type: ConstantValue
has unit: KiloGM
informative reference: http://physics.nist.gov/cuu/Constants/bibliography.html
standard uncertainty: 0.000000000000000000000000000000000011
standard uncertainty SN: 1.1E-35
value: 0.00000000000000000000000000018835313
value SN: 1.8835313E-28
website: http://physics.nist.gov/cgi-bin/cuu/Value#mid

Value for muon mass energy equivalent
type: ConstantValue
has unit: http://qudt.org/vocab/unit/J
informative reference: http://physics.nist.gov/cuu/Constants/bibliography.html
standard uncertainty: 0.00000000000000000095
standard uncertainty SN: 9.5E-19
value: 0.0000000000169283351
value SN: 1.69283351E-11
website: http://physics.nist.gov/cgi-bin/cuu/Value#mid

Value for muon mass energy equivalent in MeV
type: ConstantValue
has unit: MegaEV
informative reference: http://physics.nist.gov/cuu/Constants/bibliography.html
standard uncertainty: 0.0000038
standard uncertainty SN: 3.8E-6
value: 105.6583668
value SN: 1.056583668E2
website: http://physics.nist.gov/cgi-bin/cuu/Value#mid

Muon Mass (amu)
type: ConstantValue
has unit: http://qudt.org/vocab/unit/U
informative reference: http://physics.nist.gov/cuu/Constants/bibliography.html
standard uncertainty: 0.0000000029
standard uncertainty SN: 2.9E-9
value: 0.1134289256
value SN: 1.134289256E-1
website: http://physics.nist.gov/cgi-bin/cuu/Value#mid

Value for muon molar mass
type: ConstantValue
has unit: KiloGM-PER-MOL
informative reference: http://physics.nist.gov/cuu/Constants/bibliography.html
standard uncertainty: 0.0000000000029
standard uncertainty SN: 2.9E-12
value: 0.0001134289256
value SN: 1.134289256E-4
website: http://physics.nist.gov/cgi-bin/cuu/Value#mid

Value for muon-neutron mass ratio
type: ConstantValue
has unit: UNITLESS
informative reference: http://physics.nist.gov/cuu/Constants/bibliography.html
standard uncertainty: 0.0000000029
standard uncertainty SN: 2.9E-9
value: 0.1124545167
value SN: 1.124545167E-1
website: http://physics.nist.gov/cgi-bin/cuu/Value#mid

Value for muon-proton magnetic moment ratio
type: ConstantValue
has unit: UNITLESS
informative reference: http://physics.nist.gov/cuu/Constants/bibliography.html
standard uncertainty: 0.000000085
standard uncertainty SN: 8.5E-8
value: -3.183345137
value SN: -3.183345137E0
website: http://physics.nist.gov/cgi-bin/cuu/Value#mid

Value for muon-proton mass ratio
type: ConstantValue
has unit: UNITLESS
informative reference: http://physics.nist.gov/cuu/Constants/bibliography.html
standard uncertainty: 0.0000000029
standard uncertainty SN: 2.9E-9
value: 0.1126095261
value SN: 1.126095261E-1
website: http://physics.nist.gov/cgi-bin/cuu/Value#mid

Value for muon-tau mass ratio
type: ConstantValue
has unit: UNITLESS
informative reference: http://physics.nist.gov/cuu/Constants/bibliography.html
standard uncertainty: 0.0000097
standard uncertainty SN: 9.7E-6
value: 0.0594592
value SN: 5.94592E-2
website: http://physics.nist.gov/cgi-bin/cuu/Value#mid

Value for natural unit of action
type: ConstantValue
has unit: J-SEC
informative reference: http://physics.nist.gov/cuu/Constants/bibliography.html
standard uncertainty SN: 5.3E-42
value SN: 1.054571628E-34
website: http://physics.nist.gov/cgi-bin/cuu/Value#mid

Value for natural unit of action in eV s
type: ConstantValue
has unit: EV-SEC
informative reference: http://physics.nist.gov/cuu/Constants/bibliography.html
standard uncertainty: 0.000000000000000000000016
standard uncertainty SN: 1.6E-23
value: 0.000000000000000658211899
value SN: 6.58211899E-16
website: http://physics.nist.gov/cgi-bin/cuu/Value#mid

Value for natural unit of energy
type: ConstantValue
has unit: http://qudt.org/vocab/unit/J
informative reference: http://physics.nist.gov/cuu/Constants/bibliography.html
standard uncertainty: 0.0000000000000000000041
standard uncertainty SN: 4.1E-21
value: 0.0000000000000818710438
value SN: 8.18710438E-14
website: http://physics.nist.gov/cgi-bin/cuu/Value#mid

Value for natural unit of energy in MeV
type: ConstantValue
has unit: MegaEV
informative reference: http://physics.nist.gov/cuu/Constants/bibliography.html
standard uncertainty: 0.000000013
standard uncertainty SN: 1.3E-8
value: 0.51099891
value SN: 5.1099891E-1
website: http://physics.nist.gov/cgi-bin/cuu/Value#mid

Value for natural unit of length
type: ConstantValue
has unit: http://qudt.org/vocab/unit/M
informative reference: http://physics.nist.gov/cuu/Constants/bibliography.html
standard uncertainty: 0.00000000000000000000053
standard uncertainty SN: 5.3E-22
value: 0.00000000000038615926459
value SN: 3.8615926459E-13
website: http://physics.nist.gov/cgi-bin/cuu/Value#mid

Value for natural unit of mass
type: ConstantValue
has unit: KiloGM
informative reference: http://physics.nist.gov/cuu/Constants/bibliography.html
standard uncertainty: 0.000000000000000000000000000000000000045
standard uncertainty SN: 4.5E-38
value: 0.000000000000000000000000000000910938215
value SN: 9.10938215E-31
website: http://physics.nist.gov/cgi-bin/cuu/Value#mid

Value for natural unit of momentum
type: ConstantValue
has unit: KiloGM-M-PER-SEC
informative reference: http://physics.nist.gov/cuu/Constants/bibliography.html
standard uncertainty: 0.000000000000000000000000000014
standard uncertainty SN: 1.4E-29
value: 0.000000000000000000000273092406
value SN: 2.73092406E-22
website: http://physics.nist.gov/cgi-bin/cuu/Value#mid

Value for natural unit of momentum in MeV c^-1
type: ConstantValue
has unit: MegaEV-PER-SpeedOfLight
informative reference: http://physics.nist.gov/cuu/Constants/bibliography.html
standard uncertainty: 0.000000013
standard uncertainty SN: 1.3E-8
value: 0.51099891
value SN: 5.1099891E-1
website: http://physics.nist.gov/cgi-bin/cuu/Value#mid

Value for natural unit of time
type: ConstantValue
has unit: SEC
informative reference: http://physics.nist.gov/cuu/Constants/bibliography.html
standard uncertainty: 0.0000000000000000000000000000018
standard uncertainty SN: 1.8E-30
value: 0.000000000000000000001288088657
value SN: 1.288088657E-21
website: http://physics.nist.gov/cgi-bin/cuu/Value#mid

Value for natural unit of velocity
type: ConstantValue
has unit: M-PER-SEC
informative reference: http://physics.nist.gov/cuu/Constants/bibliography.html
value: 299792458.0
value SN: 2.99792458E8
website: http://physics.nist.gov/cgi-bin/cuu/Value#mid

Value for neutron Compton wavelength
type: ConstantValue
has unit: http://qudt.org/vocab/unit/M
informative reference: http://physics.nist.gov/cuu/Constants/bibliography.html
standard uncertainty: 0.000000000000000000000002
standard uncertainty SN: 2.0E-24
value: 0.0000000000000013195908951
value SN: 1.3195908951E-15
website: http://physics.nist.gov/cgi-bin/cuu/Value#mid

Value for neutron Compton wavelength over 2 pi
type: ConstantValue
has unit: http://qudt.org/vocab/unit/M
informative reference: http://physics.nist.gov/cuu/Constants/bibliography.html
standard uncertainty: 0.00000000000000000000000031
standard uncertainty SN: 3.1E-25
value: 0.00000000000000021001941382
value SN: 2.1001941382E-16
website: http://physics.nist.gov/cgi-bin/cuu/Value#mid

Value for neutron-electron magnetic moment ratio
type: ConstantValue
has unit: UNITLESS
informative reference: http://physics.nist.gov/cuu/Constants/bibliography.html
standard uncertainty: 0.00000000025
standard uncertainty SN: 2.5E-10
value: 0.00104066882
value SN: 1.04066882E-3
website: http://physics.nist.gov/cgi-bin/cuu/Value#mid

Value for neutron-electron mass ratio
type: ConstantValue
has unit: UNITLESS
informative reference: http://physics.nist.gov/cuu/Constants/bibliography.html
standard uncertainty: 0.0000011
standard uncertainty SN: 1.1E-6
value: 1838.6836605
value SN: 1.8386836605E3
website: http://physics.nist.gov/cgi-bin/cuu/Value#mid

Value for neutron g factor
type: ConstantValue
has unit: UNITLESS
informative reference: http://physics.nist.gov/cuu/Constants/bibliography.html
standard uncertainty: 0.0000009
standard uncertainty SN: 9.0E-7
value: -3.82608545
value SN: -3.82608545E0
website: http://physics.nist.gov/cgi-bin/cuu/Value#mid

Value for neutron gyromagnetic ratio
type: ConstantValue
has unit: PER-T-SEC
informative reference: http://physics.nist.gov/cuu/Constants/bibliography.html
standard uncertainty: 43.0
standard uncertainty SN: 4.3E1
value: 183247185.0
value SN: 1.83247185E8
website: http://physics.nist.gov/cgi-bin/cuu/Value#mid

Value for neutron gyromagnetic ratio over 2 pi
type: ConstantValue
has unit: MegaHZ-PER-T
informative reference: http://physics.nist.gov/cuu/Constants/bibliography.html
standard uncertainty: 0.0000069
standard uncertainty SN: 6.9E-6
value: 29.1646954
value SN: 2.91646954E1
website: http://physics.nist.gov/cgi-bin/cuu/Value#mid

Value for neutron magnetic moment
type: ConstantValue
has unit: J-PER-T
informative reference: http://physics.nist.gov/cuu/Constants/bibliography.html
standard uncertainty: 0.0000000000000000000000000000000023
standard uncertainty SN: 2.3E-33
value: -0.0000000000000000000000000096623641
value SN: -9.6623641E-27
website: http://physics.nist.gov/cgi-bin/cuu/Value#mid

Value for neutron magnetic moment to Bohr magneton ratio
type: ConstantValue
has unit: UNITLESS
informative reference: http://physics.nist.gov/cuu/Constants/bibliography.html
standard uncertainty: 0.00000000025
standard uncertainty SN: 2.5E-10
value: -0.00104187563
value SN: -1.04187563E-3
website: http://physics.nist.gov/cgi-bin/cuu/Value#mid

Value for neutron magnetic moment to nuclear magneton ratio
type: ConstantValue
has unit: UNITLESS
informative reference: http://physics.nist.gov/cuu/Constants/bibliography.html
standard uncertainty: 0.00000045
standard uncertainty SN: 4.5E-7
value: -1.91304273
value SN: -1.91304273E0
website: http://physics.nist.gov/cgi-bin/cuu/Value#mid

Value for neutron mass
type: ConstantValue
has unit: KiloGM
informative reference: http://physics.nist.gov/cuu/Constants/bibliography.html
standard uncertainty: 0.000000000000000000000000000000000084
standard uncertainty SN: 8.4E-35
value: 0.000000000000000000000000001674927211
value SN: 1.674927211E-27
website: http://physics.nist.gov/cgi-bin/cuu/Value#mid

Value for neutron mass energy equivalent
type: ConstantValue
has unit: http://qudt.org/vocab/unit/J
informative reference: http://physics.nist.gov/cuu/Constants/bibliography.html
standard uncertainty: 0.0000000000000000075
standard uncertainty SN: 7.5E-18
value: 0.0000000001505349505
value SN: 1.505349505E-10
website: http://physics.nist.gov/cgi-bin/cuu/Value#mid

Value for neutron mass energy equivalent in MeV
type: ConstantValue
has unit: MegaEV
informative reference: http://physics.nist.gov/cuu/Constants/bibliography.html
standard uncertainty: 0.000023
standard uncertainty SN: 2.3E-5
value: 939.565346
value SN: 9.39565346E2
website: http://physics.nist.gov/cgi-bin/cuu/Value#mid

Neutron Mass (amu)
type: ConstantValue
has unit: http://qudt.org/vocab/unit/U
informative reference: http://physics.nist.gov/cuu/Constants/bibliography.html
standard uncertainty: 0.00000000043
standard uncertainty SN: 4.3E-10
value: 1.00866491597
value SN: 1.00866491597E0
website: http://physics.nist.gov/cgi-bin/cuu/Value#mid

Value for neutron molar mass
type: ConstantValue
has unit: KiloGM-PER-MOL
informative reference: http://physics.nist.gov/cuu/Constants/bibliography.html
standard uncertainty: 0.00000000000043
standard uncertainty SN: 4.3E-13
value: 0.00100866491597
value SN: 1.00866491597E-3
website: http://physics.nist.gov/cgi-bin/cuu/Value#mid

Value for neutron-muon mass ratio
type: ConstantValue
has unit: UNITLESS
informative reference: http://physics.nist.gov/cuu/Constants/bibliography.html
standard uncertainty: 0.00000023
standard uncertainty SN: 2.3E-7
value: 8.89248409
value SN: 8.89248409E0
website: http://physics.nist.gov/cgi-bin/cuu/Value#mid

Value for neutron-proton magnetic moment ratio
type: ConstantValue
has unit: UNITLESS
informative reference: http://physics.nist.gov/cuu/Constants/bibliography.html
standard uncertainty: 0.00000016
standard uncertainty SN: 1.6E-7
value: -0.68497934
value SN: -6.8497934E-1
website: http://physics.nist.gov/cgi-bin/cuu/Value#mid

Value for neutron-proton mass ratio
type: ConstantValue
has unit: UNITLESS
informative reference: http://physics.nist.gov/cuu/Constants/bibliography.html
standard uncertainty: 0.00000000046
standard uncertainty SN: 4.6E-10
value: 1.00137841918
value SN: 1.00137841918E0
website: http://physics.nist.gov/cgi-bin/cuu/Value#mid

Value for neutron-tau mass ratio
type: ConstantValue
has unit: UNITLESS
informative reference: http://physics.nist.gov/cuu/Constants/bibliography.html
standard uncertainty: 0.000086
standard uncertainty SN: 8.6E-5
value: 0.52874
value SN: 5.2874E-1
website: http://physics.nist.gov/cgi-bin/cuu/Value#mid

Value for neutron to shielded proton magnetic moment ratio
type: ConstantValue
has unit: UNITLESS
informative reference: http://physics.nist.gov/cuu/Constants/bibliography.html
standard uncertainty: 0.00000016
standard uncertainty SN: 1.6E-7
value: -0.68499694
value SN: -6.8499694E-1
website: http://physics.nist.gov/cgi-bin/cuu/Value#mid

Value for Newtonian constant of gravitation
type: ConstantValue
has unit: M3-PER-KiloGM-SEC2
informative reference: http://physics.nist.gov/cuu/Constants/bibliography.html
relative standard uncertainty: 2.2e-5
standard uncertainty: 0.0000000000000015
standard uncertainty SN: 1.5E-15
value: 0.000000000066743
value SN: 6.6743E-11
website: http://physics.nist.gov/cgi-bin/cuu/Value#mid

Newtonian constant of gravitation over hbar c
type: ConstantValue
has unit: PER-PlanckMass2
relative standard uncertainty: 2.2e-5
standard uncertainty SN: 1.5E-43
value SN: 6.70883E-39
website: http://physics.nist.gov/cgi-bin/cuu/Value#mid

Value for nuclear magneton
type: ConstantValue
has unit: J-PER-T
informative reference: http://physics.nist.gov/cuu/Constants/bibliography.html
standard uncertainty: 0.00000000000000000000000000000000013
standard uncertainty SN: 1.3E-34
value: 0.00000000000000000000000000505078324
value SN: 5.05078324E-27
website: http://physics.nist.gov/cgi-bin/cuu/Value#mid

Value for nuclear magneton in eV per T
type: ConstantValue
has unit: EV-PER-T
informative reference: http://physics.nist.gov/cuu/Constants/bibliography.html
standard uncertainty: 0.000000000000000045
standard uncertainty SN: 4.5E-17
value: 0.000000031524512326
value SN: 3.1524512326E-8
website: http://physics.nist.gov/cgi-bin/cuu/Value#mid

Value for nuclear magneton in inverse meters per tesla
type: ConstantValue
has unit: PER-T-M
informative reference: http://physics.nist.gov/cuu/Constants/bibliography.html
standard uncertainty: 0.00000000064
standard uncertainty SN: 6.4E-10
value: 0.02542623616
value SN: 2.542623616E-2
website: http://physics.nist.gov/cgi-bin/cuu/Value#mid

Value for nuclear magneton in K per T
type: ConstantValue
has unit: K-PER-T
informative reference: http://physics.nist.gov/cuu/Constants/bibliography.html
standard uncertainty: 0.00000000064
standard uncertainty SN: 6.4E-10
value: 0.00036582637
value SN: 3.6582637E-4
website: http://physics.nist.gov/cgi-bin/cuu/Value#mid

Value for nuclear magneton in MHz per T
type: ConstantValue
has unit: MegaHZ-PER-T
informative reference: http://physics.nist.gov/cuu/Constants/bibliography.html
standard uncertainty: 0.00000019
standard uncertainty SN: 1.9E-7
value: 7.62259384
value SN: 7.62259384E0
website: http://physics.nist.gov/cgi-bin/cuu/Value#mid

Value for permittivity of vacuum
type: ConstantValue
has unit: FARAD-PER-M
relative standard uncertainty: 1.5e-10
value: 0.0000000000068541878128
value SN: 6.8541878128E-12

Value for Pi
type: ConstantValue
has unit: UNITLESS
informative reference: https://en.wikipedia.org/wiki/Pi
standard uncertainty: 0.0
standard uncertainty SN: 0.0E0
value: 3.141592653589793238462643383279503

Value for Planck constant
type: ConstantValue
has unit: J-SEC
informative reference: http://physics.nist.gov/cuu/Constants/bibliography.html
standard uncertainty SN: 3.3E-41
value SN: 6.62606896E-34
website: http://physics.nist.gov/cgi-bin/cuu/Value#mid

Value for Planck constant in eV s
type: ConstantValue
has unit: EV-SEC
informative reference: http://physics.nist.gov/cuu/Constants/bibliography.html
standard uncertainty: 0.0000000000000000000001
standard uncertainty SN: 1.0E-22
value: 0.00000000000000413566733
value SN: 4.13566733E-15
website: http://physics.nist.gov/cgi-bin/cuu/Value#mid

Value for Planck constant over 2 pi
type: ConstantValue
has unit: J-SEC
informative reference: http://physics.nist.gov/cuu/Constants/bibliography.html
standard uncertainty SN: 5.3E-42
value SN: 1.054571628E-34
website: http://physics.nist.gov/cgi-bin/cuu/Value#mid

Value for Planck constant over 2 pi in eV s
type: ConstantValue
has unit: EV-SEC
informative reference: http://physics.nist.gov/cuu/Constants/bibliography.html
standard uncertainty: 0.000000000000000000000016
standard uncertainty SN: 1.6E-23
value: 0.000000000000000658211899
value SN: 6.58211899E-16
website: http://physics.nist.gov/cgi-bin/cuu/Value#mid

Value for Planck constant over 2 pi times c in MeV fm
type: ConstantValue
has unit: MegaEV-FemtoM
informative reference: http://physics.nist.gov/cuu/Constants/bibliography.html
standard uncertainty: 0.0000049
standard uncertainty SN: 4.9E-6
value: 197.3269631
value SN: 1.973269631E2
website: http://physics.nist.gov/cgi-bin/cuu/Value#mid

Value for Planck length
type: ConstantValue
has unit: http://qudt.org/vocab/unit/M
informative reference: http://physics.nist.gov/cuu/Constants/bibliography.html
standard uncertainty SN: 8.1E-40
value SN: 1.616252E-35
website: http://physics.nist.gov/cgi-bin/cuu/Value#mid

Value for Planck mass
type: ConstantValue
has unit: KiloGM
informative reference: http://physics.nist.gov/cuu/Constants/bibliography.html
standard uncertainty: 0.0000000000011
standard uncertainty SN: 1.1E-12
value: 0.0000000217644
value SN: 2.17644E-8
website: http://physics.nist.gov/cgi-bin/cuu/Value#mid

Value for Planck mass energy equivalent in GeV
type: ConstantValue
has unit: GigaEV
informative reference: http://physics.nist.gov/cuu/Constants/bibliography.html
standard uncertainty: 610000000000000.0
standard uncertainty SN: 6.1E14
value: 12208920000000000000.0
value SN: 1.220892E19
website: http://physics.nist.gov/cgi-bin/cuu/Value#mid

Value for Planck temperature
type: ConstantValue
has unit: http://qudt.org/vocab/unit/K
informative reference: http://physics.nist.gov/cuu/Constants/bibliography.html
standard uncertainty: 7100000000000000000000000000.0
standard uncertainty SN: 7.1E27
value: 141678500000000000000000000000000.0
value SN: 1.416785E32
website: http://physics.nist.gov/cgi-bin/cuu/Value#mid

Value for Planck time
type: ConstantValue
has unit: SEC
informative reference: http://physics.nist.gov/cuu/Constants/bibliography.html
standard uncertainty SN: 2.7E-48
value SN: 5.39124E-44
website: http://physics.nist.gov/cgi-bin/cuu/Value#mid

Value for proton charge to mass quotient
type: ConstantValue
has unit: C-PER-KiloGM
informative reference: http://physics.nist.gov/cuu/Constants/bibliography.html
standard uncertainty: 2.4
standard uncertainty SN: 2.4E0
value: 95788339.2
value SN: 9.57883392E7
website: http://physics.nist.gov/cgi-bin/cuu/Value#mid

Value for proton Compton wavelength
type: ConstantValue
has unit: http://qudt.org/vocab/unit/M
informative reference: http://physics.nist.gov/cuu/Constants/bibliography.html
standard uncertainty: 0.0000000000000000000000019
standard uncertainty SN: 1.9E-24
value: 0.0000000000000013214098446
value SN: 1.3214098446E-15
website: http://physics.nist.gov/cgi-bin/cuu/Value#mid

Value for proton Compton wavelength over 2 pi
type: ConstantValue
has unit: http://qudt.org/vocab/unit/M
informative reference: http://physics.nist.gov/cuu/Constants/bibliography.html
standard uncertainty: 0.0000000000000000000000003
standard uncertainty SN: 3.0E-25
value: 0.00000000000000021030890861
value SN: 2.1030890861E-16
website: http://physics.nist.gov/cgi-bin/cuu/Value#mid

Value for proton-electron mass ratio
type: ConstantValue
has unit: UNITLESS
informative reference: http://physics.nist.gov/cuu/Constants/bibliography.html
standard uncertainty: 0.0000008
standard uncertainty SN: 8.0E-7
value: 1836.15267247
value SN: 1.83615267247E3
website: http://physics.nist.gov/cgi-bin/cuu/Value#mid

Value for proton g factor
type: ConstantValue
has unit: UNITLESS
informative reference: http://physics.nist.gov/cuu/Constants/bibliography.html
standard uncertainty: 0.000000046
standard uncertainty SN: 4.6E-8
value: 5.585694713
value SN: 5.585694713E0
website: http://physics.nist.gov/cgi-bin/cuu/Value#mid

Value for proton gyromagnetic ratio
type: ConstantValue
has unit: PER-T-SEC
informative reference: http://physics.nist.gov/cuu/Constants/bibliography.html
standard uncertainty: 7.0
standard uncertainty SN: 7.0E0
value: 267522209.9
value SN: 2.675222099E8
website: http://physics.nist.gov/cgi-bin/cuu/Value#mid

Value for proton gyromagnetic ratio over 2 pi
type: ConstantValue
has unit: MegaHZ-PER-T
informative reference: http://physics.nist.gov/cuu/Constants/bibliography.html
standard uncertainty: 0.0000011
standard uncertainty SN: 1.1E-6
value: 42.5774821
value SN: 4.25774821E1
website: http://physics.nist.gov/cgi-bin/cuu/Value#mid

Value for proton magnetic moment
type: ConstantValue
has unit: J-PER-T
informative reference: http://physics.nist.gov/cuu/Constants/bibliography.html
standard uncertainty: 0.00000000000000000000000000000000037
standard uncertainty SN: 3.7E-34
value: 0.00000000000000000000000001410606662
value SN: 1.410606662E-26
website: http://physics.nist.gov/cgi-bin/cuu/Value#mid

Value for proton magnetic moment to Bohr magneton ratio
type: ConstantValue
has unit: UNITLESS
informative reference: http://physics.nist.gov/cuu/Constants/bibliography.html
standard uncertainty: 0.000000000012
standard uncertainty SN: 1.2E-11
value: 0.001521032209
value SN: 1.521032209E-3
website: http://physics.nist.gov/cgi-bin/cuu/Value#mid

Value for proton magnetic moment to nuclear magneton ratio
type: ConstantValue
has unit: UNITLESS
informative reference: http://physics.nist.gov/cuu/Constants/bibliography.html
standard uncertainty: 0.000000023
standard uncertainty SN: 2.3E-8
value: 2.792847356
value SN: 2.792847356E0
website: http://physics.nist.gov/cgi-bin/cuu/Value#mid

Value for proton magnetic shielding correction
type: ConstantValue
has unit: UNITLESS
informative reference: http://physics.nist.gov/cuu/Constants/bibliography.html
standard uncertainty: 0.000000014
standard uncertainty SN: 1.4E-8
value: 0.000025694
value SN: 2.5694E-5
website: http://physics.nist.gov/cgi-bin/cuu/Value#mid

Value for proton mass
type: ConstantValue
has unit: KiloGM
informative reference: http://physics.nist.gov/cuu/Constants/bibliography.html
standard uncertainty: 0.000000000000000000000000000000000083
standard uncertainty SN: 8.3E-35
value: 0.000000000000000000000000001672621637
value SN: 1.672621637E-27
website: http://physics.nist.gov/cgi-bin/cuu/Value#mid

Value for proton mass energy equivalent
type: ConstantValue
has unit: http://qudt.org/vocab/unit/J
informative reference: http://physics.nist.gov/cuu/Constants/bibliography.html
standard uncertainty: 0.0000000000000000075
standard uncertainty SN: 7.5E-18
value: 0.0000000001503277359
value SN: 1.503277359E-10
website: http://physics.nist.gov/cgi-bin/cuu/Value#mid

Value for proton mass energy equivalent in MeV
type: ConstantValue
has unit: MegaEV
informative reference: http://physics.nist.gov/cuu/Constants/bibliography.html
standard uncertainty: 0.000023
standard uncertainty SN: 2.3E-5
value: 938.272013
value SN: 9.38272013E2
website: http://physics.nist.gov/cgi-bin/cuu/Value#mid

Proton Mass (amu)
type: ConstantValue
has unit: http://qudt.org/vocab/unit/U
informative reference: http://physics.nist.gov/cuu/Constants/bibliography.html
standard uncertainty: 0.0000000001
standard uncertainty SN: 1.0E-10
value: 1.00727646677
value SN: 1.00727646677E0
website: http://physics.nist.gov/cgi-bin/cuu/Value#mid

Value for proton molar mass
type: ConstantValue
has unit: KiloGM-PER-MOL
informative reference: http://physics.nist.gov/cuu/Constants/bibliography.html
standard uncertainty: 0.0000000000001
standard uncertainty SN: 1.0E-13
value: 0.00100727646677
value SN: 1.00727646677E-3
website: http://physics.nist.gov/cgi-bin/cuu/Value#mid

Value for proton-muon mass ratio
type: ConstantValue
has unit: UNITLESS
informative reference: http://physics.nist.gov/cuu/Constants/bibliography.html
standard uncertainty: 0.00000023
standard uncertainty SN: 2.3E-7
value: 8.88024339
value SN: 8.88024339E0
website: http://physics.nist.gov/cgi-bin/cuu/Value#mid

Value for proton-neutron magnetic moment ratio
type: ConstantValue
has unit: UNITLESS
informative reference: http://physics.nist.gov/cuu/Constants/bibliography.html
standard uncertainty: 0.00000034
standard uncertainty SN: 3.4E-7
value: -1.45989806
value SN: -1.45989806E0
website: http://physics.nist.gov/cgi-bin/cuu/Value#mid

Value for proton-neutron mass ratio
type: ConstantValue
has unit: UNITLESS
informative reference: http://physics.nist.gov/cuu/Constants/bibliography.html
standard uncertainty: 0.00000000046
standard uncertainty SN: 4.6E-10
value: 0.99862347824
value SN: 9.9862347824E-1
website: http://physics.nist.gov/cgi-bin/cuu/Value#mid

Value for proton rms charge radius
type: ConstantValue
has unit: http://qudt.org/vocab/unit/M
informative reference: http://physics.nist.gov/cuu/Constants/bibliography.html
standard uncertainty: 0.0000000000000000069
standard uncertainty SN: 6.9E-18
value: 0.0000000000000008768
value SN: 8.768E-16
website: http://physics.nist.gov/cgi-bin/cuu/Value#mid

Value for proton-tau mass ratio
type: ConstantValue
has unit: UNITLESS
informative reference: http://physics.nist.gov/cuu/Constants/bibliography.html
standard uncertainty: 0.000086
standard uncertainty SN: 8.6E-5
value: 0.528012
value SN: 5.28012E-1
website: http://physics.nist.gov/cgi-bin/cuu/Value#mid

Value for quantum of circulation
type: ConstantValue
has unit: M2-PER-SEC
informative reference: http://physics.nist.gov/cuu/Constants/bibliography.html
standard uncertainty: 0.0000000000005
standard uncertainty SN: 5.0E-13
value: 0.00036369475199
value SN: 3.6369475199E-4
website: http://physics.nist.gov/cgi-bin/cuu/Value#mid

Value for quantum of circulation times 2
type: ConstantValue
has unit: M2-PER-SEC
informative reference: http://physics.nist.gov/cuu/Constants/bibliography.html
standard uncertainty: 0.000000000001
standard uncertainty SN: 1.0E-12
value: 0.000727389504
value SN: 7.27389504E-4
website: http://physics.nist.gov/cgi-bin/cuu/Value#mid

Value for Rydberg constant
type: ConstantValue
has unit: PER-M
informative reference: http://physics.nist.gov/cuu/Constants/bibliography.html
standard uncertainty: 0.000073
standard uncertainty SN: 7.3E-5
value: 10973731.568527
value SN: 1.0973731568527E7
website: http://physics.nist.gov/cgi-bin/cuu/Value#mid

Value for Rydberg constant times c in Hz
type: ConstantValue
has unit: HZ
informative reference: http://physics.nist.gov/cuu/Constants/bibliography.html
standard uncertainty: 22000.0
standard uncertainty SN: 2.2E4
value: 3289841960361000.0
value SN: 3.289841960361E15
website: http://physics.nist.gov/cgi-bin/cuu/Value#mid

Value for Rydberg constant times hc in eV
type: ConstantValue
has unit: EV
informative reference: http://physics.nist.gov/cuu/Constants/bibliography.html
standard uncertainty: 0.00000034
standard uncertainty SN: 3.4E-7
value: 13.60569193
value SN: 1.360569193E1
website: http://physics.nist.gov/cgi-bin/cuu/Value#mid

Value for Rydberg constant times hc in J
type: ConstantValue
has unit: http://qudt.org/vocab/unit/J
informative reference: http://physics.nist.gov/cuu/Constants/bibliography.html
standard uncertainty: 0.00000000000000000000000011
standard uncertainty SN: 1.1E-25
value: 0.00000000000000000217987197
value SN: 2.17987197E-18
website: http://physics.nist.gov/cgi-bin/cuu/Value#mid

Value for Sackur-Tetrode constant 1 K 100 kPa
type: ConstantValue
has unit: UNITLESS
informative reference: http://physics.nist.gov/cuu/Constants/bibliography.html
standard uncertainty: 0.0000044
standard uncertainty SN: 4.4E-6
value: -1.1517047
value SN: -1.1517047E0
website: http://physics.nist.gov/cgi-bin/cuu/Value#mid

Value for Sackur-Tetrode constant 1 K 101.325 kPa
type: ConstantValue
has unit: UNITLESS
informative reference: http://physics.nist.gov/cuu/Constants/bibliography.html
standard uncertainty: 0.0000044
standard uncertainty SN: 4.4E-6
value: -1.1648677
value SN: -1.1648677E0
website: http://physics.nist.gov/cgi-bin/cuu/Value#mid

Value for second radiation constant
type: ConstantValue
has unit: M-K
informative reference: http://physics.nist.gov/cuu/Constants/bibliography.html
standard uncertainty: 0.000000025
standard uncertainty SN: 2.5E-8
value: 0.014387752
value SN: 1.4387752E-2
website: http://physics.nist.gov/cgi-bin/cuu/Value#mid

Value for shielded helion gyromagnetic ratio
type: ConstantValue
has unit: PER-T-SEC
informative reference: http://physics.nist.gov/cuu/Constants/bibliography.html
standard uncertainty: 5.6
standard uncertainty SN: 5.6E0
value: 203789473.0
value SN: 2.03789473E8
website: http://physics.nist.gov/cgi-bin/cuu/Value#mid

Value for shielded helion gyromagnetic ratio over 2 pi
type: ConstantValue
has unit: MegaHZ-PER-T
informative reference: http://physics.nist.gov/cuu/Constants/bibliography.html
standard uncertainty: 0.0000009
standard uncertainty SN: 9.0E-7
value: 32.43410198
value SN: 3.243410198E1
website: http://physics.nist.gov/cgi-bin/cuu/Value#mid

Value for shielded helion magnetic moment
type: ConstantValue
has unit: J-PER-T
informative reference: http://physics.nist.gov/cuu/Constants/bibliography.html
standard uncertainty: 0.0000000000000000000000000000000003
standard uncertainty SN: 3.0E-34
value: -0.00000000000000000000000001074552982
value SN: -1.074552982E-26
website: http://physics.nist.gov/cgi-bin/cuu/Value#mid

Value for shielded helion magnetic moment to Bohr magneton ratio
type: ConstantValue
has unit: UNITLESS
informative reference: http://physics.nist.gov/cuu/Constants/bibliography.html
standard uncertainty: 0.000000000014
standard uncertainty SN: 1.4E-11
value: -0.001158671471
value SN: -1.158671471E-3
website: http://physics.nist.gov/cgi-bin/cuu/Value#mid

Value for shielded helion magnetic moment to nuclear magneton ratio
type: ConstantValue
has unit: UNITLESS
informative reference: http://physics.nist.gov/cuu/Constants/bibliography.html
standard uncertainty: 0.000000025
standard uncertainty SN: 2.5E-8
value: -2.127497718
value SN: -2.127497718E0
website: http://physics.nist.gov/cgi-bin/cuu/Value#mid

Value for shielded helion to proton magnetic moment ratio
type: ConstantValue
has unit: UNITLESS
informative reference: http://physics.nist.gov/cuu/Constants/bibliography.html
standard uncertainty: 0.000000011
standard uncertainty SN: 1.1E-8
value: -0.761766558
value SN: -7.61766558E-1
website: http://physics.nist.gov/cgi-bin/cuu/Value#mid

Value for shielded helion to shielded proton magnetic moment ratio
type: ConstantValue
has unit: UNITLESS
informative reference: http://physics.nist.gov/cuu/Constants/bibliography.html
standard uncertainty: 0.0000000033
standard uncertainty SN: 3.3E-9
value: -0.7617861313
value SN: -7.617861313E-1
website: http://physics.nist.gov/cgi-bin/cuu/Value#mid

Value for shielded proton gyromagnetic ratio
type: ConstantValue
has unit: PER-T-SEC
informative reference: http://physics.nist.gov/cuu/Constants/bibliography.html
standard uncertainty: 7.3
standard uncertainty SN: 7.3E0
value: 267515336.2
value SN: 2.675153362E8
website: http://physics.nist.gov/cgi-bin/cuu/Value#mid

Value for shielded proton gyromagnetic ratio over 2 pi
type: ConstantValue
has unit: MegaHZ-PER-T
informative reference: http://physics.nist.gov/cuu/Constants/bibliography.html
standard uncertainty: 0.0000012
standard uncertainty SN: 1.2E-6
value: 42.5763881
value SN: 4.25763881E1
website: http://physics.nist.gov/cgi-bin/cuu/Value#mid

Value for shielded proton magnetic moment
type: ConstantValue
has unit: J-PER-T
informative reference: http://physics.nist.gov/cuu/Constants/bibliography.html
standard uncertainty: 0.00000000000000000000000000000000038
standard uncertainty SN: 3.8E-34
value: 0.00000000000000000000000001410570419
value SN: 1.410570419E-26
website: http://physics.nist.gov/cgi-bin/cuu/Value#mid

Value for shielded proton magnetic moment to Bohr magneton ratio
type: ConstantValue
has unit: UNITLESS
informative reference: http://physics.nist.gov/cuu/Constants/bibliography.html
standard uncertainty: 0.000000000017
standard uncertainty SN: 1.7E-11
value: 0.001520993128
value SN: 1.520993128E-3
website: http://physics.nist.gov/cgi-bin/cuu/Value#mid

Value for shielded proton magnetic moment to nuclear magneton ratio
type: ConstantValue
has unit: UNITLESS
informative reference: http://physics.nist.gov/cuu/Constants/bibliography.html
standard uncertainty: 0.00000003
standard uncertainty SN: 3.0E-8
value: 2.792775598
value SN: 2.792775598E0
website: http://physics.nist.gov/cgi-bin/cuu/Value#mid

Value for velocity of light
type: ConstantValue
has unit: M-PER-SEC
informative reference: http://physics.nist.gov/cuu/Constants/bibliography.html
value: 299792458.0
value SN: 2.99792458E8
website: http://physics.nist.gov/cgi-bin/cuu/Value#mid

Value for speed of light in a vacuum
type: ConstantValue
has unit: M-PER-SEC
informative reference: http://physics.nist.gov/cgi-bin/cuu/Value#mid
informative reference: http://physics.nist.gov/cuu/Constants/bibliography.html
standard uncertainty: 0.0
standard uncertainty SN: 0.0E0
value: 299792458.0
value SN: 2.99792458E8

Value for speed of light in vacuum (Imperial units)
type: ConstantValue
has unit: MI-PER-HR
informative reference: http://physics.nist.gov/cuu/Constants/bibliography.html
value: 670616629.0
value SN: 6.70616629E8
website: http://physics.nist.gov/cgi-bin/cuu/Value#mid

Value for standard acceleration of gravity
type: ConstantValue
has unit: M-PER-SEC2
informative reference: http://physics.nist.gov/cuu/Constants/bibliography.html
value: 9.80665
value SN: 9.80665E0
website: http://physics.nist.gov/cgi-bin/cuu/Value#mid

Value for standard atmosphere
type: ConstantValue
has unit: PA
informative reference: http://physics.nist.gov/cuu/Constants/bibliography.html
value: 101325.0
value SN: 1.01325E5
website: http://physics.nist.gov/cgi-bin/cuu/Value#mid

Value for Stefan-Boltzmann Constant
type: ConstantValue
has unit: W-PER-M2-K4
informative reference: http://physics.nist.gov/cuu/Constants/bibliography.html
standard uncertainty: 0.0000000000004
standard uncertainty SN: 4.0E-13
value: 0.000000056704
value SN: 5.6704E-8
website: http://physics.nist.gov/cgi-bin/cuu/Value#mid

Value for tau Compton wavelength
type: ConstantValue
has unit: http://qudt.org/vocab/unit/M
informative reference: http://physics.nist.gov/cuu/Constants/bibliography.html
standard uncertainty: 0.00000000000000000011
standard uncertainty SN: 1.1E-19
value: 0.00000000000000069772
value SN: 6.9772E-16
website: http://physics.nist.gov/cgi-bin/cuu/Value#mid

Value for tau Compton wavelength over 2 pi
type: ConstantValue
has unit: http://qudt.org/vocab/unit/M
informative reference: http://physics.nist.gov/cuu/Constants/bibliography.html
standard uncertainty: 0.000000000000000000018
standard uncertainty SN: 1.8E-20
value: 0.000000000000000111046
value SN: 1.11046E-16
website: http://physics.nist.gov/cgi-bin/cuu/Value#mid

Value for tau-electron mass ratio
type: ConstantValue
has unit: UNITLESS
informative reference: http://physics.nist.gov/cuu/Constants/bibliography.html
standard uncertainty: 0.57
standard uncertainty SN: 5.7E-1
value: 3477.48
value SN: 3.47748E3
website: http://physics.nist.gov/cgi-bin/cuu/Value#mid

Value for tau mass
type: ConstantValue
has unit: KiloGM
informative reference: http://physics.nist.gov/cuu/Constants/bibliography.html
standard uncertainty: 0.00000000000000000000000000000052
standard uncertainty SN: 5.2E-31
value: 0.00000000000000000000000000316777
value SN: 3.16777E-27
website: http://physics.nist.gov/cgi-bin/cuu/Value#mid

Value for tau mass energy equivalent
type: ConstantValue
has unit: http://qudt.org/vocab/unit/J
informative reference: http://physics.nist.gov/cuu/Constants/bibliography.html
standard uncertainty: 0.000000000000046
standard uncertainty SN: 4.6E-14
value: 0.000000000284705
value SN: 2.84705E-10
website: http://physics.nist.gov/cgi-bin/cuu/Value#mid

Value for tau mass energy equivalent in MeV
type: ConstantValue
has unit: MegaEV
informative reference: http://physics.nist.gov/cuu/Constants/bibliography.html
standard uncertainty: 0.29
standard uncertainty SN: 2.9E-1
value: 1776.99
value SN: 1.77699E3
website: http://physics.nist.gov/cgi-bin/cuu/Value#mid

Tau Mass (amu)
type: ConstantValue
has unit: http://qudt.org/vocab/unit/U
informative reference: http://physics.nist.gov/cuu/Constants/bibliography.html
standard uncertainty: 0.00031
standard uncertainty SN: 3.1E-4
value: 1.90768
value SN: 1.90768E0
website: http://physics.nist.gov/cgi-bin/cuu/Value#mid

Value for tau molar mass
type: ConstantValue
has unit: KiloGM-PER-MOL
informative reference: http://physics.nist.gov/cuu/Constants/bibliography.html
standard uncertainty: 0.00000031
standard uncertainty SN: 3.1E-7
value: 0.00190768
value SN: 1.90768E-3
website: http://physics.nist.gov/cgi-bin/cuu/Value#mid

Value for tau-muon mass ratio
type: ConstantValue
has unit: UNITLESS
informative reference: http://physics.nist.gov/cuu/Constants/bibliography.html
standard uncertainty: 0.0027
standard uncertainty SN: 2.7E-3
value: 16.8183
value SN: 1.68183E1
website: http://physics.nist.gov/cgi-bin/cuu/Value#mid

Value for tau-neutron mass ratio
type: ConstantValue
has unit: UNITLESS
informative reference: http://physics.nist.gov/cuu/Constants/bibliography.html
standard uncertainty: 0.00031
standard uncertainty SN: 3.1E-4
value: 1.89129
value SN: 1.89129E0
website: http://physics.nist.gov/cgi-bin/cuu/Value#mid

Value for tau-proton mass ratio
type: ConstantValue
has unit: UNITLESS
informative reference: http://physics.nist.gov/cuu/Constants/bibliography.html
standard uncertainty: 0.00031
standard uncertainty SN: 3.1E-4
value: 1.8939
value SN: 1.8939E0
website: http://physics.nist.gov/cgi-bin/cuu/Value#mid

Value for Thomson cross section
type: ConstantValue
has unit: M2
informative reference: http://physics.nist.gov/cuu/Constants/bibliography.html
standard uncertainty: 0.00000000000000000000000000000000000027
standard uncertainty SN: 2.7E-37
value: 0.00000000000000000000000000006652458558
value SN: 6.652458558E-29
website: http://physics.nist.gov/cgi-bin/cuu/Value#mid

Value for triton-electron magnetic moment ratio
type: ConstantValue
has unit: UNITLESS
informative reference: http://physics.nist.gov/cuu/Constants/bibliography.html
standard uncertainty: 0.000000000021
standard uncertainty SN: 2.1E-11
value: -0.001620514423
value SN: -1.620514423E-3
website: http://physics.nist.gov/cgi-bin/cuu/Value#mid

Value for triton-electron mass ratio
type: ConstantValue
has unit: UNITLESS
informative reference: http://physics.nist.gov/cuu/Constants/bibliography.html
standard uncertainty: 0.0000051
standard uncertainty SN: 5.1E-6
value: 5496.9215269
value SN: 5.4969215269E3
website: http://physics.nist.gov/cgi-bin/cuu/Value#mid

Value for triton g factor
type: ConstantValue
has unit: UNITLESS
informative reference: http://physics.nist.gov/cuu/Constants/bibliography.html
standard uncertainty: 0.000000076
standard uncertainty SN: 7.6E-8
value: 5.957924896
value SN: 5.957924896E0
website: http://physics.nist.gov/cgi-bin/cuu/Value#mid

Value for triton magnetic moment
type: ConstantValue
has unit: J-PER-T
informative reference: http://physics.nist.gov/cuu/Constants/bibliography.html
standard uncertainty: 0.00000000000000000000000000000000042
standard uncertainty SN: 4.2E-34
value: 0.00000000000000000000000001504609361
value SN: 1.504609361E-26
website: http://physics.nist.gov/cgi-bin/cuu/Value#mid

Value for triton magnetic moment to Bohr magneton ratio
type: ConstantValue
has unit: UNITLESS
informative reference: http://physics.nist.gov/cuu/Constants/bibliography.html
standard uncertainty: 0.000000000021
standard uncertainty SN: 2.1E-11
value: 0.001622393657
value SN: 1.622393657E-3
website: http://physics.nist.gov/cgi-bin/cuu/Value#mid

Value for triton magnetic moment to nuclear magneton ratio
type: ConstantValue
has unit: UNITLESS
informative reference: http://physics.nist.gov/cuu/Constants/bibliography.html
standard uncertainty: 0.000000038
standard uncertainty SN: 3.8E-8
value: 2.978962448
value SN: 2.978962448E0
website: http://physics.nist.gov/cgi-bin/cuu/Value#mid

Value for triton mass
type: ConstantValue
has unit: KiloGM
informative reference: http://physics.nist.gov/cuu/Constants/bibliography.html
standard uncertainty: 0.00000000000000000000000000000000025
standard uncertainty SN: 2.5E-34
value: 0.00000000000000000000000000500735588
value SN: 5.00735588E-27
website: http://physics.nist.gov/cgi-bin/cuu/Value#mid

Value for triton mass energy equivalent
type: ConstantValue
has unit: http://qudt.org/vocab/unit/J
informative reference: http://physics.nist.gov/cuu/Constants/bibliography.html
standard uncertainty: 0.000000000000000022
standard uncertainty SN: 2.2E-17
value: 0.000000000450038703
value SN: 4.50038703E-10
website: http://physics.nist.gov/cgi-bin/cuu/Value#mid

Value for triton mass energy equivalent in MeV
type: ConstantValue
has unit: MegaEV
informative reference: http://physics.nist.gov/cuu/Constants/bibliography.html
standard uncertainty: 0.00007
standard uncertainty SN: 7.0E-5
value: 2808.920906
value SN: 2.808920906E3
website: http://physics.nist.gov/cgi-bin/cuu/Value#mid

Triton Mass (amu)
type: ConstantValue
has unit: http://qudt.org/vocab/unit/U
informative reference: http://physics.nist.gov/cuu/Constants/bibliography.html
standard uncertainty: 0.0000000025
standard uncertainty SN: 2.5E-9
value: 3.0155007134
value SN: 3.0155007134E0
website: http://physics.nist.gov/cgi-bin/cuu/Value#mid

Value for triton molar mass
type: ConstantValue
has unit: KiloGM-PER-MOL
informative reference: http://physics.nist.gov/cuu/Constants/bibliography.html
standard uncertainty: 0.0000000000025
standard uncertainty SN: 2.5E-12
value: 0.0030155007134
value SN: 3.0155007134E-3
website: http://physics.nist.gov/cgi-bin/cuu/Value#mid

Value for triton-neutron magnetic moment ratio
type: ConstantValue
has unit: UNITLESS
informative reference: http://physics.nist.gov/cuu/Constants/bibliography.html
standard uncertainty: 0.00000037
standard uncertainty SN: 3.7E-7
value: -1.55718553
value SN: -1.55718553E0
website: http://physics.nist.gov/cgi-bin/cuu/Value#mid

Value for triton-proton magnetic moment ratio
type: ConstantValue
has unit: UNITLESS
informative reference: http://physics.nist.gov/cuu/Constants/bibliography.html
standard uncertainty: 0.00000001
standard uncertainty SN: 1.0E-8
value: 1.066639908
value SN: 1.066639908E0
website: http://physics.nist.gov/cgi-bin/cuu/Value#mid

Value for triton-proton mass ratio
type: ConstantValue
has unit: UNITLESS
informative reference: http://physics.nist.gov/cuu/Constants/bibliography.html
standard uncertainty: 0.0000000025
standard uncertainty SN: 2.5E-9
value: 2.9937170309
value SN: 2.9937170309E0
website: http://physics.nist.gov/cgi-bin/cuu/Value#mid

Value for unified atomic mass unit
type: ConstantValue
has unit: KiloGM
informative reference: http://physics.nist.gov/cuu/Constants/bibliography.html
standard uncertainty: 0.000000000000000000000000000000000083
standard uncertainty SN: 8.3E-35
value: 0.000000000000000000000000001660538782
value SN: 1.660538782E-27
website: http://physics.nist.gov/cgi-bin/cuu/Value#mid

Value for von Klitzing constant
type: ConstantValue
has unit: OHM
informative reference: http://physics.nist.gov/cuu/Constants/bibliography.html
standard uncertainty: 0.000018
standard uncertainty SN: 1.8E-5
value: 25812.807557
value SN: 2.5812807557E4
website: http://physics.nist.gov/cgi-bin/cuu/Value#mid

Value for weak mixing angle
type: ConstantValue
has unit: UNITLESS
informative reference: http://physics.nist.gov/cuu/Constants/bibliography.html
standard uncertainty: 0.00056
standard uncertainty SN: 5.6E-4
value: 0.22255
value SN: 2.2255E-1
website: http://physics.nist.gov/cgi-bin/cuu/Value#mid

Value for Wien frequency displacement law constant
type: ConstantValue
has unit: HZ-PER-K
informative reference: http://physics.nist.gov/cuu/Constants/bibliography.html
standard uncertainty: 100000.0
standard uncertainty SN: 1.0E5
value: 58789330000.0
value SN: 5.878933E10
website: http://physics.nist.gov/cgi-bin/cuu/Value#mid

Value for Wien wavelength displacement law constant
type: ConstantValue
has unit: M-K
informative reference: http://physics.nist.gov/cuu/Constants/bibliography.html
standard uncertainty: 0.0000000051
standard uncertainty SN: 5.1E-9
value: 0.0028977685
value SN: 2.8977685E-3
website: http://physics.nist.gov/cgi-bin/cuu/Value#mid

Von Klitzing constant
type: PhysicalConstant
has quantity kind: Resistance
informative reference: http://physics.nist.gov/cuu/Constants/bibliography.html
quantity value: Value for von Klitzing constant

Weak mixing angle
type: PhysicalConstant
dbpedia match: http://dbpedia.org/resource/Weinberg_angle
has quantity kind: DimensionlessRatio
informative reference: http://physics.nist.gov/cuu/Constants/bibliography.html
quantity value: Value for weak mixing angle

Wien frequency displacement law constant
type: PhysicalConstant
has quantity kind: InverseTimeTemperature
informative reference: http://physics.nist.gov/cuu/Constants/bibliography.html
quantity value: Value for Wien frequency displacement law constant

Wien wavelength displacement law constant
type: PhysicalConstant
has quantity kind: LengthTemperature
informative reference: http://physics.nist.gov/cuu/Constants/bibliography.html
quantity value: Value for Wien wavelength displacement law constant

QUDT Constants Version 3.3Vocabulary
type: GraphMetaData
contributor: Irene Polikoff
contributor: Jack Hodges
contributor: Ralph Hodgson
contributor: Simon J D Cox
contributor: Steve Ray
created: 2010-02-05
creator: James E. Masters
creator: Steve Ray
modified: 2026-05-25T19:49:07Z
rights: The QUDT Ontologies are issued under a Creative Commons Attribution 4.0 International License (CC BY 4.0), available at https://creativecommons.org/licenses/by/4.0/. Attribution should be made to QUDT.org
subject: Constants
label: Physical Constant Vocabulary Version 3.3.0 Metadata
description: The Constants vocabulary defines terms for and contains the values and standard uncertainties of physical constants, initially populated from the NIST website: The NIST Reference on Constants, Units, and Uncertainty, at http://physics.nist.gov/cuu/index.html
graph name: qudt
graph title: QUDT Constants Version 3.3.0
has graph role: VocabularyGraph
has owner: QUDT.org
has steward: QUDT.org
intent: Provides a vocabulary of Constants for both human and machine use
is metadata for: QUDT VOCAB Physical Constants Release 3.3.0
latest published version: https://qudt.org/doc/2026/05/DOC_VOCAB-CONSTANTS.html
namespace: http://qudt.org/vocab/constant/
namespace prefix: constant
owner: QUDT.org
previous published version: https://qudt.org/doc/2026/04/DOC_VOCAB-CONSTANTS.html
specificity: 1
turtle file URL: QUDT VOCAB Physical Constants Release 3.3.0
url for HTML: http://qudt.org/3.3.0/vocab/constant.html
uses non imported resource: abstract
uses non imported resource: created
uses non imported resource: creator
uses non imported resource: modified
uses non imported resource: title
website: http://qudt.org/vocab/constant.ttl