mp_units::codata::codata2014¶ Types¶ Name alpha_particle_electron_mass_ratio alpha_particle_mass alpha_particle_molar_mass alpha_particle_proton_mass_ratio angstrom_star atomic_mass_constant atomic_unit_of_1st_hyperpolarizability atomic_unit_of_2nd_hyperpolarizability atomic_unit_of_charge_density atomic_unit_of_current atomic_unit_of_electric_dipole_moment atomic_unit_of_electric_field atomic_unit_of_electric_field_gradient atomic_unit_of_electric_polarizability atomic_unit_of_electric_potential atomic_unit_of_electric_quadrupole_moment atomic_unit_of_force atomic_unit_of_magnetic_dipole_moment atomic_unit_of_magnetic_flux_density atomic_unit_of_magnetizability atomic_unit_of_momentum atomic_unit_of_permittivity atomic_unit_of_time atomic_unit_of_velocity avogadro_constant bohr_magneton bohr_radius boltzmann_constant characteristic_impedance_of_vacuum classical_electron_radius conductance_quantum copper_x_unit deuteron_electron_magnetic_moment_ratio deuteron_electron_mass_ratio deuteron_g_factor deuteron_magnetic_moment deuteron_magnetic_moment_to_bohr_magneton_ratio deuteron_magnetic_moment_to_nuclear_magneton_ratio deuteron_mass deuteron_molar_mass deuteron_neutron_magnetic_moment_ratio deuteron_proton_magnetic_moment_ratio deuteron_proton_mass_ratio deuteron_rms_charge_radius electron_charge_to_mass_quotient electron_compton_wavelength electron_deuteron_magnetic_moment_ratio electron_deuteron_mass_ratio electron_g_factor electron_gyromagnetic_ratio electron_helion_mass_ratio electron_magnetic_moment electron_magnetic_moment_anomaly electron_magnetic_moment_to_bohr_magneton_ratio electron_magnetic_moment_to_nuclear_magneton_ratio electron_mass electron_molar_mass electron_muon_magnetic_moment_ratio electron_muon_mass_ratio electron_neutron_magnetic_moment_ratio electron_neutron_mass_ratio electron_proton_magnetic_moment_ratio electron_proton_mass_ratio electron_tau_mass_ratio electron_to_alpha_particle_mass_ratio electron_to_shielded_helion_magnetic_moment_ratio electron_to_shielded_proton_magnetic_moment_ratio electron_triton_mass_ratio elementary_charge elementary_charge_over_h faraday_constant fermi_coupling_constant fine_structure_constant first_radiation_constant first_radiation_constant_for_spectral_radiance hartree_energy helion_electron_mass_ratio helion_g_factor helion_magnetic_moment helion_magnetic_moment_to_bohr_magneton_ratio helion_magnetic_moment_to_nuclear_magneton_ratio helion_mass helion_molar_mass helion_proton_mass_ratio inverse_fine_structure_constant inverse_of_conductance_quantum josephson_constant lattice_parameter_of_silicon lattice_spacing_of_silicon_220 loschmidt_constant_atm loschmidt_constant_stp magnetic_constant magnetic_flux_quantum molar_gas_constant molar_mass_constant molar_mass_of_carbon_12 molar_planck_constant molar_planck_constant_times_c molar_volume_of_ideal_gas_atm molar_volume_of_ideal_gas_stp molar_volume_of_silicon molybdenum_x_unit muon_compton_wavelength muon_electron_mass_ratio muon_g_factor muon_magnetic_moment muon_magnetic_moment_anomaly muon_magnetic_moment_to_bohr_magneton_ratio muon_magnetic_moment_to_nuclear_magneton_ratio muon_mass muon_molar_mass muon_neutron_mass_ratio muon_proton_magnetic_moment_ratio muon_proton_mass_ratio muon_tau_mass_ratio natural_unit_of_energy natural_unit_of_length natural_unit_of_momentum natural_unit_of_time neutron_compton_wavelength neutron_electron_magnetic_moment_ratio neutron_electron_mass_ratio neutron_g_factor neutron_gyromagnetic_ratio neutron_magnetic_moment neutron_magnetic_moment_to_bohr_magneton_ratio neutron_magnetic_moment_to_nuclear_magneton_ratio neutron_mass neutron_molar_mass neutron_muon_mass_ratio neutron_proton_magnetic_moment_ratio neutron_proton_mass_difference neutron_proton_mass_ratio neutron_tau_mass_ratio neutron_to_shielded_proton_magnetic_moment_ratio newtonian_constant_of_gravitation nuclear_magneton planck_constant planck_length planck_mass planck_temperature planck_time proton_charge_to_mass_quotient proton_compton_wavelength proton_electron_mass_ratio proton_g_factor proton_gyromagnetic_ratio proton_magnetic_moment proton_magnetic_moment_to_bohr_magneton_ratio proton_magnetic_moment_to_nuclear_magneton_ratio proton_magnetic_shielding_correction proton_mass proton_molar_mass proton_muon_mass_ratio proton_neutron_magnetic_moment_ratio proton_neutron_mass_ratio proton_rms_charge_radius proton_tau_mass_ratio quantum_of_circulation quantum_of_circulation_times_2 reduced_planck_constant rydberg_constant sackur_tetrode_constant_100_kpa sackur_tetrode_constant_101_325_kpa second_radiation_constant shielded_helion_gyromagnetic_ratio shielded_helion_magnetic_moment shielded_helion_magnetic_moment_to_bohr_magneton_ratio shielded_helion_magnetic_moment_to_nuclear_magneton_ratio shielded_helion_to_proton_magnetic_moment_ratio shielded_helion_to_shielded_proton_magnetic_moment_ratio shielded_proton_gyromagnetic_ratio shielded_proton_magnetic_moment shielded_proton_magnetic_moment_to_bohr_magneton_ratio shielded_proton_magnetic_moment_to_nuclear_magneton_ratio stefan_boltzmann_constant tau_compton_wavelength tau_electron_mass_ratio tau_mass tau_molar_mass tau_muon_mass_ratio tau_neutron_mass_ratio tau_proton_mass_ratio thomson_cross_section triton_electron_mass_ratio triton_g_factor triton_magnetic_moment triton_magnetic_moment_to_bohr_magneton_ratio triton_magnetic_moment_to_nuclear_magneton_ratio triton_mass triton_molar_mass triton_proton_mass_ratio vacuum_electric_permittivity von_klitzing_constant weak_mixing_angle wien_frequency_displacement_law_constant wien_wavelength_displacement_law_constant Variables¶ Name alpha_particle_electron_mass_ratio alpha_particle_mass alpha_particle_molar_mass alpha_particle_proton_mass_ratio angstrom_star atomic_mass_constant atomic_unit_of_1st_hyperpolarizability atomic_unit_of_2nd_hyperpolarizability atomic_unit_of_action atomic_unit_of_charge atomic_unit_of_charge_density atomic_unit_of_current atomic_unit_of_electric_dipole_moment atomic_unit_of_electric_field atomic_unit_of_electric_field_gradient atomic_unit_of_electric_polarizability atomic_unit_of_electric_potential atomic_unit_of_electric_quadrupole_moment atomic_unit_of_energy atomic_unit_of_force atomic_unit_of_length atomic_unit_of_magnetic_dipole_moment atomic_unit_of_magnetic_flux_density atomic_unit_of_magnetizability atomic_unit_of_mass atomic_unit_of_momentum atomic_unit_of_permittivity atomic_unit_of_time atomic_unit_of_velocity avogadro_constant bohr_magneton bohr_radius boltzmann_constant characteristic_impedance_of_vacuum classical_electron_radius conductance_quantum copper_x_unit deuteron_electron_magnetic_moment_ratio deuteron_electron_mass_ratio deuteron_g_factor deuteron_magnetic_moment deuteron_magnetic_moment_to_bohr_magneton_ratio deuteron_magnetic_moment_to_nuclear_magneton_ratio deuteron_mass deuteron_molar_mass deuteron_neutron_magnetic_moment_ratio deuteron_proton_magnetic_moment_ratio deuteron_proton_mass_ratio deuteron_rms_charge_radius electron_charge_to_mass_quotient electron_compton_wavelength electron_deuteron_magnetic_moment_ratio electron_deuteron_mass_ratio electron_g_factor electron_gyromagnetic_ratio electron_helion_mass_ratio electron_magnetic_moment electron_magnetic_moment_anomaly electron_magnetic_moment_to_bohr_magneton_ratio electron_magnetic_moment_to_nuclear_magneton_ratio electron_mass electron_molar_mass electron_muon_magnetic_moment_ratio electron_muon_mass_ratio electron_neutron_magnetic_moment_ratio electron_neutron_mass_ratio electron_proton_magnetic_moment_ratio electron_proton_mass_ratio electron_tau_mass_ratio electron_to_alpha_particle_mass_ratio electron_to_shielded_helion_magnetic_moment_ratio electron_to_shielded_proton_magnetic_moment_ratio electron_triton_mass_ratio elementary_charge elementary_charge_over_h faraday_constant fermi_coupling_constant fine_structure_constant first_radiation_constant first_radiation_constant_for_spectral_radiance hartree_energy helion_electron_mass_ratio helion_g_factor helion_magnetic_moment helion_magnetic_moment_to_bohr_magneton_ratio helion_magnetic_moment_to_nuclear_magneton_ratio helion_mass helion_molar_mass helion_proton_mass_ratio inverse_fine_structure_constant inverse_of_conductance_quantum josephson_constant lattice_parameter_of_silicon lattice_spacing_of_silicon_220 loschmidt_constant_atm loschmidt_constant_stp magnetic_constant magnetic_flux_quantum molar_gas_constant molar_mass_constant molar_mass_of_carbon_12 molar_planck_constant molar_planck_constant_times_c molar_volume_of_ideal_gas_atm molar_volume_of_ideal_gas_stp molar_volume_of_silicon molybdenum_x_unit muon_compton_wavelength muon_electron_mass_ratio muon_g_factor muon_magnetic_moment muon_magnetic_moment_anomaly muon_magnetic_moment_to_bohr_magneton_ratio muon_magnetic_moment_to_nuclear_magneton_ratio muon_mass muon_molar_mass muon_neutron_mass_ratio muon_proton_magnetic_moment_ratio muon_proton_mass_ratio muon_tau_mass_ratio natural_unit_of_action natural_unit_of_energy natural_unit_of_length natural_unit_of_mass natural_unit_of_momentum natural_unit_of_time natural_unit_of_velocity neutron_compton_wavelength neutron_electron_magnetic_moment_ratio neutron_electron_mass_ratio neutron_g_factor neutron_gyromagnetic_ratio neutron_magnetic_moment neutron_magnetic_moment_to_bohr_magneton_ratio neutron_magnetic_moment_to_nuclear_magneton_ratio neutron_mass neutron_molar_mass neutron_muon_mass_ratio neutron_proton_magnetic_moment_ratio neutron_proton_mass_difference neutron_proton_mass_ratio neutron_tau_mass_ratio neutron_to_shielded_proton_magnetic_moment_ratio newtonian_constant_of_gravitation nuclear_magneton planck_constant planck_length planck_mass planck_temperature planck_time proton_charge_to_mass_quotient proton_compton_wavelength proton_electron_mass_ratio proton_g_factor proton_gyromagnetic_ratio proton_magnetic_moment proton_magnetic_moment_to_bohr_magneton_ratio proton_magnetic_moment_to_nuclear_magneton_ratio proton_magnetic_shielding_correction proton_mass proton_molar_mass proton_muon_mass_ratio proton_neutron_magnetic_moment_ratio proton_neutron_mass_ratio proton_rms_charge_radius proton_tau_mass_ratio quantum_of_circulation quantum_of_circulation_times_2 reduced_planck_constant rydberg_constant sackur_tetrode_constant_100_kpa sackur_tetrode_constant_101_325_kpa second_radiation_constant shielded_helion_gyromagnetic_ratio shielded_helion_magnetic_moment shielded_helion_magnetic_moment_to_bohr_magneton_ratio shielded_helion_magnetic_moment_to_nuclear_magneton_ratio shielded_helion_to_proton_magnetic_moment_ratio shielded_helion_to_shielded_proton_magnetic_moment_ratio shielded_proton_gyromagnetic_ratio shielded_proton_magnetic_moment shielded_proton_magnetic_moment_to_bohr_magneton_ratio shielded_proton_magnetic_moment_to_nuclear_magneton_ratio stefan_boltzmann_constant tau_compton_wavelength tau_electron_mass_ratio tau_mass tau_molar_mass tau_muon_mass_ratio tau_neutron_mass_ratio tau_proton_mass_ratio thomson_cross_section triton_electron_mass_ratio triton_g_factor triton_magnetic_moment triton_magnetic_moment_to_bohr_magneton_ratio triton_magnetic_moment_to_nuclear_magneton_ratio triton_mass triton_molar_mass triton_proton_mass_ratio unified_atomic_mass_unit vacuum_electric_permittivity von_klitzing_constant weak_mixing_angle wien_frequency_displacement_law_constant wien_wavelength_displacement_law_constant Using Declarations¶ Name speed_of_light_in_vacuum