Documentation ¶
Overview ¶
Package constant provides fundamental constants satisfying unit.Uniter.
Constant values reflect the values published at https://physics.nist.gov/cuu/index.html and are subject to change when the published values are updated.
Index ¶
Constants ¶
const AtomicMass = unit.Mass(1.66053904e-27)
AtomicMass is the atomic mass constant (mᵤ), one twelfth of the mass of an unbound atom of carbon-12 at rest and in its ground state. The dimension of AtomicMass is kg. The standard uncertainty of the constant is 2e-35 kg.
const Avogadro = avogadroUnits(6.022140857e+23)
Avogadro is the Avogadro constant (A), the number of constituent particles contained in one mole of a substance. The dimension of Avogadro is mol^-1. The standard uncertainty of the constant is 7.4e+15 mol^-1.
const Boltzmann = boltzmannUnits(1.38064852e-23)
Boltzmann is the Boltzmann constant (k), it relates the average relative kinetic energy of particles in a gas with the temperature of the gas. The dimensions of Boltzmann are kg m^2 K^-1 s^-2. The standard uncertainty of the constant is 7.9e-30 kg m^2 K^-1 s^-2.
const ElectricConstant = electricConstantUnits(8.854187817620389e-12)
ElectricConstant is the electric constant (ε₀), the value of the absolute dielectric permittivity of classical vacuum. The dimensions of ElectricConstant are A^2 s^4 kg^-1 m^-3. The constant is exact.
const ElementaryCharge = unit.Charge(1.6021766208e-19)
ElementaryCharge, is the elementary charge constant (e), the magnitude of electric charge carried by a single proton or electron. The dimensions of ElementaryCharge are A s. The standard uncertainty of the constant is 9.8e-28 A s.
const Faraday = faradayUnits(96485.33289)
Faraday is the Faraday constant, the magnitude of electric charge per mole of electrons. The dimensions of Faraday are A s mol^-1. The standard uncertainty of the constant is 0.00059 A s mol^-1.
const FineStructure = unit.Dimless(0.0072973525664)
FineStructure is the fine structure constant (α), it describes the strength of the electromagnetic interaction between elementary charged particles. The standard uncertainty of the constant is 1.7e-12 .
const Gravitational = gravitationalUnits(6.67408e-11)
Gravitational is the universal gravitational constant (G), the proportionality constant connecting the gravitational force between two bodies. The dimensions of Gravitational are m^3 kg^-1 s^-2. The standard uncertainty of the constant is 3.1e-15 m^3 kg^-1 s^-2.
const LightSpeedInVacuum = unit.Velocity(2.99792458e+08)
LightSpeedInVacuum is the c constant, the speed of light in a vacuum. The dimensions of LightSpeedInVacuum are m s^-1. The constant is exact.
const MagneticConstant = magneticConstantUnits(1.2566370614692394e-06)
MagneticConstant is the magnetic constant (μ₀), the magnetic permeability in a classical vacuum. The dimensions of MagneticConstant are A^2 s^4 kg^-1 m^-3. The constant is exact.
const Planck = planckUnits(6.62607004e-34)
Planck is the Planck constant (h), it relates the energy carried by a photon to its frequency. The dimensions of Planck are kg m^2 s^-1. The standard uncertainty of the constant is 8.1e-42 kg m^2 s^-1.
const StandardGravity = unit.Acceleration(9.80665)
StandardGravity is the standard gravity constant (g₀), the nominal gravitational acceleration of an object in a vacuum near the surface of the Earth The dimensions of StandardGravity are m s^-2. The constant is exact.
Variables ¶
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Functions ¶
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Types ¶
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