Module constants
Source - G
- Newtonian gravitational constant, G, m^3 / kg s^2
- G_uncertainty
- R
- Molar gas constant, R, J / mol K
- avogadro
- Avogadro constant, N_A, 1/ mol
- boltzmann
- Boltzmann constant, k, J/K
- c
- Speed of light in a vacuum, m/s
- e_charge
- Elementary charge, e, C
- electron_mass
- Mass of an electron, kg
- electron_mass_uncertainty
- fine_structure
- Fine structure constant, α, unitless
- fine_structure_uncertainty
- g
- Gravitational acceleration on Earth’s surface, m / s^2
- h
- Plank constant, h, J
- h_bar
- Reduced plank constant, ħ, J s
- neutron_mass
- Mass of an neutron kg
- neutron_mass_uncertainty
- permeability
- Permeability of free space, μ₀, N/A^2
- permeability_uncertainty
- permittivity
- Permittivity of free space, ε₀, F/
- permittivity_uncertainty
- proton_mass
- Mass of an proton kg
- proton_mass_uncertainty
- rydberg
- Rydberg constant, R_inf, 1/m
- rydberg_uncertainty
- stefan_boltzmann
- Stefan-Boltzmann constant, σ, W / m^2 K^4
- wien
- Wien displacement law constant, b, wavelength, m K
- wien_frequency
- Wien displacement law constant, b’, frequency, Hz /K
- CODATA
- NIST CODATA. Maps a string of a value name to a triplet
containing an f64 of its value, an f64 of its uncertainty,
and a string of its units