Constants
Many common physical constants are available as well:
DynamicQuantities.Constants.c — ConstantSpeed of light in a vacuum. Standard.
DynamicQuantities.Constants.h — ConstantPlanck constant. Standard.
DynamicQuantities.Constants.hbar — ConstantReduced Planck constant (h/2π). Standard.
DynamicQuantities.Constants.e — ConstantElementary charge. Standard.
DynamicQuantities.Constants.k_B — ConstantBoltzmann constant. Standard.
DynamicQuantities.Constants.N_A — ConstantAvogadro constant. Standard.
DynamicQuantities.Constants.eV — ConstantElectron volt. Standard.
DynamicQuantities.Constants.R — ConstantMolar gas constant. Standard.
DynamicQuantities.Constants.F — ConstantFaraday constant. Standard.
DynamicQuantities.Constants.sigma_sb — ConstantStefan-Boltzmann constant. Standard.
DynamicQuantities.Constants.alpha — ConstantFine-structure constant. Measured.
DynamicQuantities.Constants.u — ConstantAtomic mass unit (1/12th the mass of Carbon-12). Measured.
DynamicQuantities.Constants.G — ConstantNewtonian constant of gravitation. Measured.
DynamicQuantities.Constants.mu_0 — ConstantVacuum magnetic permeability. Measured.
DynamicQuantities.Constants.eps_0 — ConstantVacuum electric permittivity. Measured.
DynamicQuantities.Constants.m_e — ConstantElectron mass. Measured.
DynamicQuantities.Constants.m_p — ConstantProton mass. Measured.
DynamicQuantities.Constants.m_n — ConstantNeutron mass. Measured.
DynamicQuantities.Constants.a_0 — ConstantBohr radius. Measured.
DynamicQuantities.Constants.k_e — ConstantCoulomb constant (Note: SI units only!). Measured.
DynamicQuantities.Constants.Ryd — ConstantRydberg frequency. Measured.
Astronomical constants
DynamicQuantities.Constants.M_earth — ConstantEarth mass. Measured.
DynamicQuantities.Constants.M_sun — ConstantSolar mass. Measured.
DynamicQuantities.Constants.M_jup — ConstantJupiter mass. Measured.
DynamicQuantities.Constants.R_earth — ConstantNominal Earth equatorial radius. Standard.
DynamicQuantities.Constants.R_jup — ConstantNominal Jupiter equatorial radius. Standard.
DynamicQuantities.Constants.R_sun — ConstantNominal solar radius. Standard.
DynamicQuantities.Constants.L_sun — ConstantNominal solar luminosity. Standard.
DynamicQuantities.Constants.L_bol0 — ConstantStandard luminosity at absolute bolometric magnitude 0. Standard.
DynamicQuantities.Constants.sigma_T — ConstantThomson scattering cross-section. Measured.
DynamicQuantities.Constants.au — ConstantAstronomical unit. Standard.
DynamicQuantities.Constants.pc — ConstantParsec. Standard.
DynamicQuantities.Constants.ly — ConstantLight year. Standard.
DynamicQuantities.Constants.atm — ConstantStandard atmosphere. Standard.