EarthRadius (Physical Constants Package Symbol)

EarthRadius is the radius of Earth, a physical constant.

ElectronCharge (Physical Constants Package Symbol)

ElectronCharge is the elementary charge on the electron, an electromagnetic constant.

ElectronGFactor (Physical Constants Package Symbol)

ElectronGFactor is the electron g-factor.

GalacticUnit (Physical Constants Package Symbol)

GalacticUnit is the approximate distance of the Sun from the center of the Milky Way Galaxy.

HubbleConstant (Physical Constants Package Symbol)

HubbleConstant is a measure of the rate at which the expansion of the universe varies with distance.

IcePoint (Physical Constants Package Symbol)

IcePoint is the temperature at which a mixture of air-saturated pure water and pure ice may exist in equilibrium at a pressure of one standard atmosphere.

MagneticFluxQuantum (Physical Constants Package Symbol)

MagneticFluxQuantum is magnetic flux quantum, an electromagnetic constant.

MolarGasConstant (Physical Constants Package Symbol)

MolarGasConstant is a physico-chemical constant.

MuonGFactor (Physical Constants Package Symbol)

MuonGFactor is the muon g-factor.

NeutronMass (Physical Constants Package Symbol)

NeutronMass is the mass of a neutron.