Namespace wt::siconstants¶ SI constants. Variables¶ Variable wt::siconstants::boltzmann_constant Variable wt::siconstants::elementary_charge Variable wt::siconstants::planck_constant Variable wt::siconstants::reduced_planck_constant Variable wt::siconstants::speed_of_light_in_vacuum Variable wt::siconstants::standard_gravity Variable wt::siconstants::vacuum_permeability