MolarGasConstant is a physico-chemical constant.
MuonGFactor is the muon g-factor.
NeutronMass is the mass of a neutron.
PlanckConstantReduced is a universal constant, equal to PlanckConstant/(2 Pi).
PlanckMass is a universal constant.
QuantizedHallConductance is the quantized Hall conductance, an electromagnetic constant.
SackurTetrodeConstant is the absolute entropy constant, a physico-chemical constant.
SolarLuminosity is a physical constant.
SolarRadius is a physical constant.
SolarSchwarzschildRadius is a physical constant.