diff --git "a/data/nist_constants.json" "b/data/nist_constants.json" --- "a/data/nist_constants.json" +++ "b/data/nist_constants.json" @@ -1,3632 +1,3 @@ -[ - { - "name": "alpha particle mass", - "id": "alpha_particle_mass", - "url": "https://physics.nist.gov/cgi-bin/cuu/Value?mal|search_for=all!", - "symbol": "alpha_particle_mass", - "value": "6.644 657 3450 x 10-27", - "unit": "kg Standard uncertainty 0", - "uncertainty": "", - "concise_value": "6.644 657 3450" - }, - { - "name": "alpha particle mass energy equivalent", - "id": "alpha_particle_mass_energy_equivalent", - "url": "https://physics.nist.gov/cgi-bin/cuu/Value?malc2|search_for=all!", - "symbol": "alpha_particle_mass_energy_equivalent", - "value": "5.971 920 1997 x 10-10", - "unit": "J Standard uncertainty 0", - "uncertainty": "", - "concise_value": "5.971 920 1997" - }, - { - "name": "alpha particle mass energy equivalent in MeV", - "id": "alpha_particle_mass_energy_equivalent_in_mev", - "url": "https://physics.nist.gov/cgi-bin/cuu/Value?malc2mev|search_for=all!", - "symbol": "alpha_particle_mass_energy_equivalent_in_mev", - "value": "3727.379 4118", - "unit": "MeV Standard uncertainty 0", - "uncertainty": "", - "concise_value": "3727.379 4118" - }, - { - "name": "alpha particle mass in u", - "id": "alpha_particle_mass_in_u", - "url": "https://physics.nist.gov/cgi-bin/cuu/Value?malu|search_for=all!", - "symbol": "alpha_particle_mass_in_u", - "value": "4.001 506 179 129", - "unit": "u Standard uncertainty 0", - "uncertainty": "", - "concise_value": "4.001 506 179 129" - }, - { - "name": "alpha particle molar mass", - "id": "alpha_particle_molar_mass", - "url": "https://physics.nist.gov/cgi-bin/cuu/Value?mmal|search_for=all!", - "symbol": "alpha_particle_molar_mass", - "value": "4.001 506 1833 x 10-3", - "unit": "kg mol-1 Standard uncertainty 0", - "uncertainty": "", - "concise_value": "4.001 506 1833" - }, - { - "name": "alpha particle relative atomic mass", - "id": "alpha_particle_relative_atomic_mass", - "url": "https://physics.nist.gov/cgi-bin/cuu/Value?aral|search_for=all!", - "symbol": "alpha_particle_relative_atomic_mass", - "value": "4.001 506 179 129", - "unit": "Standard uncertainty 0", - "uncertainty": "", - "concise_value": "4.001 506 179 129" - }, - { - "name": "alpha particle rms charge radius", - "id": "alpha_particle_rms_charge_radius", - "url": "https://physics.nist.gov/cgi-bin/cuu/Value?ral|search_for=all!", - "symbol": "alpha_particle_rms_charge_radius", - "value": "1.6785 x 10-15", - "unit": "m Standard uncertainty 0", - "uncertainty": "", - "concise_value": "1.6785" - }, - { - "name": "alpha particle-electron mass ratio", - "id": "alpha_particle-electron_mass_ratio", - "url": "https://physics.nist.gov/cgi-bin/cuu/Value?malsme|search_for=all!", - "symbol": "alpha_particle-electron_mass_ratio", - "value": "7294.299 541 71", - "unit": "Standard uncertainty 0", - "uncertainty": "", - "concise_value": "7294.299 541 71" - }, - { - "name": "alpha particle-proton mass ratio", - "id": "alpha_particle-proton_mass_ratio", - "url": "https://physics.nist.gov/cgi-bin/cuu/Value?malsmp|search_for=all!", - "symbol": "alpha_particle-proton_mass_ratio", - "value": "3.972 599 690 252", - "unit": "Standard uncertainty 0", - "uncertainty": "", - "concise_value": "3.972 599 690 252" - }, - { - "name": "Angstrom star", - "id": "angstrom_star", - "url": "https://physics.nist.gov/cgi-bin/cuu/Value?angstar|search_for=all!", - "symbol": "angstrom_star", - "value": "1.000 014 95 x 10-10", - "unit": "m Standard uncertainty 0", - "uncertainty": "", - "concise_value": "1.000 014 95" - }, - { - "name": "atomic mass constant", - "id": "atomic_mass_constant", - "url": "https://physics.nist.gov/cgi-bin/cuu/Value?u|search_for=all!", - "symbol": "atomic_mass_constant", - "value": "1.660 539 068 92 x 10-27", - "unit": "kg Standard uncertainty 0", - "uncertainty": "", - "concise_value": "1.660 539 068 92" - }, - { - "name": "atomic mass constant energy equivalent", - "id": "atomic_mass_constant_energy_equivalent", - "url": "https://physics.nist.gov/cgi-bin/cuu/Value?uj|search_for=all!", - "symbol": "atomic_mass_constant_energy_equivalent", - "value": "1.492 418 087 68 x 10-10", - "unit": "J Standard uncertainty 0", - "uncertainty": "", - "concise_value": "1.492 418 087 68" - }, - { - "name": "atomic mass constant energy equivalent in MeV", - "id": "atomic_mass_constant_energy_equivalent_in_mev", - "url": "https://physics.nist.gov/cgi-bin/cuu/Value?muc2mev|search_for=all!", - "symbol": "atomic_mass_constant_energy_equivalent_in_mev", - "value": "931.494 103 72", - "unit": "MeV Standard uncertainty 0", - "uncertainty": "", - "concise_value": "931.494 103 72" - }, - { - "name": "atomic mass unit-electron volt relationship", - "id": "atomic_mass_unit-electron_volt_relationship", - "url": "https://physics.nist.gov/cgi-bin/cuu/Value?uev|search_for=all!", - "symbol": "atomic_mass_unit-electron_volt_relationship", - "value": "9.314 941 0372 x 108", - "unit": "eV Standard uncertainty 0", - "uncertainty": "", - "concise_value": "9.314 941 0372" - }, - { - "name": "atomic mass unit-hartree relationship", - "id": "atomic_mass_unit-hartree_relationship", - "url": "https://physics.nist.gov/cgi-bin/cuu/Value?uhr|search_for=all!", - "symbol": "atomic_mass_unit-hartree_relationship", - "value": "3.423 177 6922 x 107", - "unit": "Eh Standard uncertainty 0", - "uncertainty": "", - "concise_value": "3.423 177 6922" - }, - { - "name": "atomic mass unit-hertz relationship", - "id": "atomic_mass_unit-hertz_relationship", - "url": "https://physics.nist.gov/cgi-bin/cuu/Value?uhz|search_for=all!", - "symbol": "atomic_mass_unit-hertz_relationship", - "value": "2.252 342 721 85 x 1023", - "unit": "Hz Standard uncertainty 0", - "uncertainty": "", - "concise_value": "2.252 342 721 85" - }, - { - "name": "atomic mass unit-inverse meter relationship", - "id": "atomic_mass_unit-inverse_meter_relationship", - "url": "https://physics.nist.gov/cgi-bin/cuu/Value?uminv|search_for=all!", - "symbol": "atomic_mass_unit-inverse_meter_relationship", - "value": "7.513 006 6209 x 1014", - "unit": "m-1 Standard uncertainty 0", - "uncertainty": "", - "concise_value": "7.513 006 6209" - }, - { - "name": "atomic mass unit-joule relationship", - "id": "atomic_mass_unit-joule_relationship", - "url": "https://physics.nist.gov/cgi-bin/cuu/Value?Ruj|search_for=all!", - "symbol": "atomic_mass_unit-joule_relationship", - "value": "1.492 418 087 68 x 10-10", - "unit": "J Standard uncertainty 0", - "uncertainty": "", - "concise_value": "1.492 418 087 68" - }, - { - "name": "atomic mass unit-kelvin relationship", - "id": "atomic_mass_unit-kelvin_relationship", - "url": "https://physics.nist.gov/cgi-bin/cuu/Value?uk|search_for=all!", - "symbol": "atomic_mass_unit-kelvin_relationship", - "value": "1.080 954 020 67 x 1013", - "unit": "K Standard uncertainty 0", - "uncertainty": "", - "concise_value": "1.080 954 020 67" - }, - { - "name": "atomic mass unit-kilogram relationship", - "id": "atomic_mass_unit-kilogram_relationship", - "url": "https://physics.nist.gov/cgi-bin/cuu/Value?Rukg|search_for=all!", - "symbol": "atomic_mass_unit-kilogram_relationship", - "value": "1.660 539 068 92 x 10-27", - "unit": "kg Standard uncertainty 0", - "uncertainty": "", - "concise_value": "1.660 539 068 92" - }, - { - "name": "atomic unit of 1st hyperpolarizability", - "id": "atomic_unit_of_1st_hyperpolarizability", - "url": "https://physics.nist.gov/cgi-bin/cuu/Value?auhypol|search_for=all!", - "symbol": "atomic_unit_of_1st_hyperpolarizability", - "value": "3.206 361 2996 x 10-53", - "unit": "C3 m3 J-2 Standard uncertainty 0", - "uncertainty": "", - "concise_value": "3.206 361 2996" - }, - { - "name": "atomic unit of 2nd hyperpolarizability", - "id": "atomic_unit_of_2nd_hyperpolarizability", - "url": "https://physics.nist.gov/cgi-bin/cuu/Value?au2hypol|search_for=all!", - "symbol": "atomic_unit_of_2nd_hyperpolarizability", - "value": "6.235 379 9735 x 10-65", - "unit": "C4 m4 J-3 Standard uncertainty 0", - "uncertainty": "", - "concise_value": "6.235 379 9735" - }, - { - "name": "atomic unit of action", - "id": "atomic_unit_of_action", - "url": "https://physics.nist.gov/cgi-bin/cuu/Value?Ahbar|search_for=all!", - "symbol": "atomic_unit_of_action", - "value": "1.054 571 817... x 10-34", - "unit": "J s Standard uncertainty", - "uncertainty": "", - "concise_value": "1.054 571 817... x 10-34", - "concise_unit": "J s Click here for correlation coefficient of this constant with other constants" - }, - { - "name": "atomic unit of charge", - "id": "atomic_unit_of_charge", - "url": "https://physics.nist.gov/cgi-bin/cuu/Value?Ae|search_for=all!", - "symbol": "atomic_unit_of_charge", - "value": "1.602 176 634 x 10-19", - "unit": "C Standard uncertainty", - "uncertainty": "", - "concise_value": "1.602 176 634 x 10-19", - "concise_unit": "C Click here for correlation coefficient of this constant with other constants" - }, - { - "name": "atomic unit of charge density", - "id": "atomic_unit_of_charge_density", - "url": "https://physics.nist.gov/cgi-bin/cuu/Value?aucd|search_for=all!", - "symbol": "atomic_unit_of_charge_density", - "value": "1.081 202 386 77 x 1012", - "unit": "C m-3 Standard uncertainty 0", - "uncertainty": "", - "concise_value": "1.081 202 386 77" - }, - { - "name": "atomic unit of current", - "id": "atomic_unit_of_current", - "url": "https://physics.nist.gov/cgi-bin/cuu/Value?aucur|search_for=all!", - "symbol": "atomic_unit_of_current", - "value": "6.623 618 237 5082 x 10-3", - "unit": "A Standard uncertainty 0", - "uncertainty": "", - "concise_value": "6.623 618 237 5082" - }, - { - "name": "atomic unit of electric dipole moment", - "id": "atomic_unit_of_electric_dipole_moment", - "url": "https://physics.nist.gov/cgi-bin/cuu/Value?auedm|search_for=all!", - "symbol": "atomic_unit_of_electric_dipole_moment", - "value": "8.478 353 6198 x 10-30", - "unit": "C m Standard uncertainty 0", - "uncertainty": "", - "concise_value": "8.478 353 6198" - }, - { - "name": "atomic unit of electric field", - "id": "atomic_unit_of_electric_field", - "url": "https://physics.nist.gov/cgi-bin/cuu/Value?auefld|search_for=all!", - "symbol": "atomic_unit_of_electric_field", - "value": "5.142 206 751 12 x 1011", - "unit": "V m-1 Standard uncertainty 0", - "uncertainty": "", - "concise_value": "5.142 206 751 12" - }, - { - "name": "atomic unit of electric field gradient", - "id": "atomic_unit_of_electric_field_gradient", - "url": "https://physics.nist.gov/cgi-bin/cuu/Value?auefg|search_for=all!", - "symbol": "atomic_unit_of_electric_field_gradient", - "value": "9.717 362 4424 x 1021", - "unit": "V m-2 Standard uncertainty 0", - "uncertainty": "", - "concise_value": "9.717 362 4424" - }, - { - "name": "atomic unit of electric polarizability", - "id": "atomic_unit_of_electric_polarizability", - "url": "https://physics.nist.gov/cgi-bin/cuu/Value?auepol|search_for=all!", - "symbol": "atomic_unit_of_electric_polarizability", - "value": "1.648 777 272 12 x 10-41", - "unit": "C2 m2 J-1 Standard uncertainty 0", - "uncertainty": "", - "concise_value": "1.648 777 272 12" - }, - { - "name": "atomic unit of electric potential", - "id": "atomic_unit_of_electric_potential", - "url": "https://physics.nist.gov/cgi-bin/cuu/Value?auep|search_for=all!", - "symbol": "atomic_unit_of_electric_potential", - "value": "27.211 386 245 981", - "unit": "V Standard uncertainty 0", - "uncertainty": "", - "concise_value": "27.211 386 245 981" - }, - { - "name": "atomic unit of electric quadrupole moment", - "id": "atomic_unit_of_electric_quadrupole_moment", - "url": "https://physics.nist.gov/cgi-bin/cuu/Value?aueqm|search_for=all!", - "symbol": "atomic_unit_of_electric_quadrupole_moment", - "value": "4.486 551 5185 x 10-40", - "unit": "C m2 Standard uncertainty 0", - "uncertainty": "", - "concise_value": "4.486 551 5185" - }, - { - "name": "atomic unit of energy", - "id": "atomic_unit_of_energy", - "url": "https://physics.nist.gov/cgi-bin/cuu/Value?Ahr|search_for=all!", - "symbol": "atomic_unit_of_energy", - "value": "4.359 744 722 2060 x 10-18", - "unit": "J Standard uncertainty 0", - "uncertainty": "", - "concise_value": "4.359 744 722 2060" - }, - { - "name": "atomic unit of force", - "id": "atomic_unit_of_force", - "url": "https://physics.nist.gov/cgi-bin/cuu/Value?auforce|search_for=all!", - "symbol": "atomic_unit_of_force", - "value": "8.238 723 5038 x 10-8", - "unit": "N Standard uncertainty 0", - "uncertainty": "", - "concise_value": "8.238 723 5038" - }, - { - "name": "atomic unit of length", - "id": "atomic_unit_of_length", - "url": "https://physics.nist.gov/cgi-bin/cuu/Value?Abohrrada0|search_for=all!", - "symbol": "atomic_unit_of_length", - "value": "5.291 772 105 44 x 10-11", - "unit": "m Standard uncertainty 0", - "uncertainty": "", - "concise_value": "5.291 772 105 44" - }, - { - "name": "atomic unit of magnetic dipole moment", - "id": "atomic_unit_of_magnetic_dipole_moment", - "url": "https://physics.nist.gov/cgi-bin/cuu/Value?aumdm|search_for=all!", - "symbol": "atomic_unit_of_magnetic_dipole_moment", - "value": "1.854 802 013 15 x 10-23", - "unit": "J T-1 Standard uncertainty 0", - "uncertainty": "", - "concise_value": "1.854 802 013 15" - }, - { - "name": "atomic unit of magnetic flux density", - "id": "atomic_unit_of_magnetic_flux_density", - "url": "https://physics.nist.gov/cgi-bin/cuu/Value?aumfd|search_for=all!", - "symbol": "atomic_unit_of_magnetic_flux_density", - "value": "2.350 517 570 77 x 105", - "unit": "T Standard uncertainty 0", - "uncertainty": "", - "concise_value": "2.350 517 570 77" - }, - { - "name": "atomic unit of magnetizability", - "id": "atomic_unit_of_magnetizability", - "url": "https://physics.nist.gov/cgi-bin/cuu/Value?aumag|search_for=all!", - "symbol": "atomic_unit_of_magnetizability", - "value": "7.891 036 5794 x 10-29", - "unit": "J T-2 Standard uncertainty 0", - "uncertainty": "", - "concise_value": "7.891 036 5794" - }, - { - "name": "atomic unit of mass", - "id": "atomic_unit_of_mass", - "url": "https://physics.nist.gov/cgi-bin/cuu/Value?Ame|search_for=all!", - "symbol": "atomic_unit_of_mass", - "value": "9.109 383 7139 x 10-31", - "unit": "kg Standard uncertainty 0", - "uncertainty": "", - "concise_value": "9.109 383 7139" - }, - { - "name": "atomic unit of momentum", - "id": "atomic_unit_of_momentum", - "url": "https://physics.nist.gov/cgi-bin/cuu/Value?aumom|search_for=all!", - "symbol": "atomic_unit_of_momentum", - "value": "1.992 851 915 45 x 10-24", - "unit": "kg m s-1 Standard uncertainty 0", - "uncertainty": "", - "concise_value": "1.992 851 915 45" - }, - { - "name": "atomic unit of permittivity", - "id": "atomic_unit_of_permittivity", - "url": "https://physics.nist.gov/cgi-bin/cuu/Value?auperm|search_for=all!", - "symbol": "atomic_unit_of_permittivity", - "value": "1.112 650 056 20 x 10-10", - "unit": "F m-1 Standard uncertainty 0", - "uncertainty": "", - "concise_value": "1.112 650 056 20" - }, - { - "name": "atomic unit of time", - "id": "atomic_unit_of_time", - "url": "https://physics.nist.gov/cgi-bin/cuu/Value?aut|search_for=all!", - "symbol": "atomic_unit_of_time", - "value": "2.418 884 326 5864 x 10-17", - "unit": "s Standard uncertainty 0", - "uncertainty": "", - "concise_value": "2.418 884 326 5864" - }, - { - "name": "atomic unit of velocity", - "id": "atomic_unit_of_velocity", - "url": "https://physics.nist.gov/cgi-bin/cuu/Value?auvel|search_for=all!", - "symbol": "atomic_unit_of_velocity", - "value": "2.187 691 262 16 x 106", - "unit": "m s-1 Standard uncertainty 0", - "uncertainty": "", - "concise_value": "2.187 691 262 16" - }, - { - "name": "Avogadro constant", - "id": "avogadro_constant", - "url": "https://physics.nist.gov/cgi-bin/cuu/Value?na|search_for=all!", - "symbol": "avogadro_constant", - "value": "6.022 140 76 x 1023", - "unit": "mol-1 Standard uncertainty", - "uncertainty": "", - "concise_value": "6.022 140 76 x 1023", - "concise_unit": "mol-1 Click here for correlation coefficient of this constant with other constants" - }, - { - "name": "Bohr magneton", - "id": "bohr_magneton", - "url": "https://physics.nist.gov/cgi-bin/cuu/Value?mub|search_for=all!", - "symbol": "bohr_magneton", - "value": "9.274 010 0657 x 10-24", - "unit": "J T-1 Standard uncertainty 0", - "uncertainty": "", - "concise_value": "9.274 010 0657" - }, - { - "name": "Bohr magneton in eV/T", - "id": "bohr_magneton_in_ev/t", - "url": "https://physics.nist.gov/cgi-bin/cuu/Value?mubev|search_for=all!", - "symbol": "bohr_magneton_in_ev/t", - "value": "5.788 381 7982 x 10-5", - "unit": "eV T-1 Standard uncertainty 0", - "uncertainty": "", - "concise_value": "5.788 381 7982" - }, - { - "name": "Bohr magneton in Hz/T", - "id": "bohr_magneton_in_hz/t", - "url": "https://physics.nist.gov/cgi-bin/cuu/Value?mubshhz|search_for=all!", - "symbol": "bohr_magneton_in_hz/t", - "value": "1.399 624 491 71 x 1010", - "unit": "Hz T-1 Standard uncertainty 0", - "uncertainty": "", - "concise_value": "1.399 624 491 71" - }, - { - "name": "Bohr magneton in inverse meter per tesla", - "id": "bohr_magneton_in_inverse_meter_per_tesla", - "url": "https://physics.nist.gov/cgi-bin/cuu/Value?mubshcminv|search_for=all!", - "symbol": "bohr_magneton_in_inverse_meter_per_tesla", - "value": "46.686 447 719", - "unit": "m-1 T-1 Standard uncertainty 0", - "uncertainty": "", - "concise_value": "46.686 447 719" - }, - { - "name": "Bohr magneton in K/T", - "id": "bohr_magneton_in_k/t", - "url": "https://physics.nist.gov/cgi-bin/cuu/Value?mubskk|search_for=all!", - "symbol": "bohr_magneton_in_k/t", - "value": "0.671 713 814 72", - "unit": "K T-1 Standard uncertainty 0", - "uncertainty": "", - "concise_value": "0.671 713 814 72" - }, - { - "name": "Bohr radius", - "id": "bohr_radius", - "url": "https://physics.nist.gov/cgi-bin/cuu/Value?bohrrada0|search_for=all!", - "symbol": "bohr_radius", - "value": "5.291 772 105 44 x 10-11", - "unit": "m Standard uncertainty 0", - "uncertainty": "", - "concise_value": "5.291 772 105 44" - }, - { - "name": "Boltzmann constant", - "id": "boltzmann_constant", - "url": "https://physics.nist.gov/cgi-bin/cuu/Value?k|search_for=all!", - "symbol": "boltzmann_constant", - "value": "1.380 649 x 10-23", - "unit": "J K-1 Standard uncertainty", - "uncertainty": "", - "concise_value": "1.380 649 x 10-23", - "concise_unit": "J K-1 Click here for correlation coefficient of this constant with other constants" - }, - { - "name": "Boltzmann constant in eV/K", - "id": "boltzmann_constant_in_ev/k", - "url": "https://physics.nist.gov/cgi-bin/cuu/Value?kev|search_for=all!", - "symbol": "boltzmann_constant_in_ev/k", - "value": "8.617 333 262... x 10-5", - "unit": "eV K-1 Standard uncertainty", - "uncertainty": "", - "concise_value": "8.617 333 262... x 10-5", - "concise_unit": "eV K-1 Click here for correlation coefficient of this constant with other constants" - }, - { - "name": "Boltzmann constant in Hz/K", - "id": "boltzmann_constant_in_hz/k", - "url": "https://physics.nist.gov/cgi-bin/cuu/Value?kshhz|search_for=all!", - "symbol": "boltzmann_constant_in_hz/k", - "value": "2.083 661 912... x 1010", - "unit": "Hz K-1 Standard uncertainty", - "uncertainty": "", - "concise_value": "2.083 661 912... x 1010", - "concise_unit": "Hz K-1 Click here for correlation coefficient of this constant with other constants" - }, - { - "name": "Boltzmann constant in inverse meter per kelvin", - "id": "boltzmann_constant_in_inverse_meter_per_kelvin", - "url": "https://physics.nist.gov/cgi-bin/cuu/Value?kshcminv|search_for=all!", - "symbol": "boltzmann_constant_in_inverse_meter_per_kelvin", - "value": "69.503 480 04...", - "unit": "m-1 K-1 Standard uncertainty", - "uncertainty": "", - "concise_value": "69.503 480 04...", - "concise_unit": "m-1 K-1" - }, - { - "name": "characteristic impedance of vacuum", - "id": "characteristic_impedance_of_vacuum", - "url": "https://physics.nist.gov/cgi-bin/cuu/Value?z0|search_for=all!", - "symbol": "characteristic_impedance_of_vacuum", - "value": "376.730 313 412", - "unit": "Standard uncertainty 0", - "uncertainty": "", - "concise_value": "376.730 313 412" - }, - { - "name": "classical electron radius", - "id": "classical_electron_radius", - "url": "https://physics.nist.gov/cgi-bin/cuu/Value?re|search_for=all!", - "symbol": "classical_electron_radius", - "value": "2.817 940 3205 x 10-15", - "unit": "m Standard uncertainty 0", - "uncertainty": "", - "concise_value": "2.817 940 3205" - }, - { - "name": "Compton wavelength", - "id": "compton_wavelength", - "url": "https://physics.nist.gov/cgi-bin/cuu/Value?ecomwl|search_for=all!", - "symbol": "compton_wavelength", - "value": "2.426 310 235 38 x 10-12", - "unit": "m Standard uncertainty 0", - "uncertainty": "", - "concise_value": "2.426 310 235 38" - }, - { - "name": "conductance quantum", - "id": "conductance_quantum", - "url": "https://physics.nist.gov/cgi-bin/cuu/Value?conqu2e2sh|search_for=all!", - "symbol": "conductance_quantum", - "value": "7.748 091 729... x 10-5", - "unit": "S Standard uncertainty", - "uncertainty": "", - "concise_value": "7.748 091 729... x 10-5", - "concise_unit": "S Click here for correlation coefficient of this constant with other constants" - }, - { - "name": "conventional value of ampere-90", - "id": "conventional_value_of_ampere-90", - "url": "https://physics.nist.gov/cgi-bin/cuu/Value?ampere90|search_for=all!", - "symbol": "conventional_value_of_ampere-90", - "value": "", - "unit": "of ampere-90 Constants Topics", - "uncertainty": "", - "concise_value": "1.000 000 088 87...", - "concise_unit": "A Click here for correlation coefficient of this constant with other constants" - }, - { - "name": "conventional value of coulomb-90", - "id": "conventional_value_of_coulomb-90", - "url": "https://physics.nist.gov/cgi-bin/cuu/Value?charge90|search_for=all!", - "symbol": "conventional_value_of_coulomb-90", - "value": "", - "unit": "of coulomb-90 Constants Topics", - "uncertainty": "", - "concise_value": "1.000 000 088 87...", - "concise_unit": "C Click here for correlation coefficient of this constant with other constants" - }, - { - "name": "conventional value of farad-90", - "id": "conventional_value_of_farad-90", - "url": "https://physics.nist.gov/cgi-bin/cuu/Value?capacitance90|search_for=all!", - "symbol": "conventional_value_of_farad-90", - "value": "", - "unit": "of farad-90 Constants Topics", - "uncertainty": "", - "concise_value": "0.999 999 982 20...", - "concise_unit": "F Click here for correlation coefficient of this constant with other constants" - }, - { - "name": "conventional value of henry-90", - "id": "conventional_value_of_henry-90", - "url": "https://physics.nist.gov/cgi-bin/cuu/Value?inductance90|search_for=all!", - "symbol": "conventional_value_of_henry-90", - "value": "", - "unit": "of henry-90 Constants Topics", - "uncertainty": "", - "concise_value": "1.000 000 017 79...", - "concise_unit": "H Click here for correlation coefficient of this constant with other constants" - }, - { - "name": "conventional value of Josephson constant", - "id": "conventional_value_of_josephson_constant", - "url": "https://physics.nist.gov/cgi-bin/cuu/Value?kj90|search_for=all!", - "symbol": "conventional_value_of_josephson_constant", - "value": "", - "unit": "of Josephson constant Constants Topics", - "uncertainty": "", - "concise_value": "483 597.9 x 109", - "concise_unit": "Hz V-1 Click here for correlation coefficient of this constant with other constants" - }, - { - "name": "conventional value of ohm-90", - "id": "conventional_value_of_ohm-90", - "url": "https://physics.nist.gov/cgi-bin/cuu/Value?ohm90|search_for=all!", - "symbol": "conventional_value_of_ohm-90", - "value": "", - "unit": "of ohm-90 Constants Topics", - "uncertainty": "", - "concise_value": "1.000 000 017 79...", - "concise_unit": "Click here for correlation coefficient of this constant with other constants" - }, - { - "name": "conventional value of volt-90", - "id": "conventional_value_of_volt-90", - "url": "https://physics.nist.gov/cgi-bin/cuu/Value?volt90|search_for=all!", - "symbol": "conventional_value_of_volt-90", - "value": "", - "unit": "of volt-90 Constants Topics", - "uncertainty": "", - "concise_value": "1.000 000 106 66...", - "concise_unit": "V Click here for correlation coefficient of this constant with other constants" - }, - { - "name": "conventional value of von Klitzing constant", - "id": "conventional_value_of_von_klitzing_constant", - "url": "https://physics.nist.gov/cgi-bin/cuu/Value?rk90|search_for=all!", - "symbol": "conventional_value_of_von_klitzing_constant", - "value": "", - "unit": "of von Klitzing constant Constants Topics", - "uncertainty": "", - "concise_value": "25 812.807", - "concise_unit": "Click here for correlation coefficient of this constant with other constants" - }, - { - "name": "conventional value of watt-90", - "id": "conventional_value_of_watt-90", - "url": "https://physics.nist.gov/cgi-bin/cuu/Value?power90|search_for=all!", - "symbol": "conventional_value_of_watt-90", - "value": "", - "unit": "of watt-90 Constants Topics", - "uncertainty": "", - "concise_value": "1.000 000 195 53...", - "concise_unit": "W Click here for correlation coefficient of this constant with other constants" - }, - { - "name": "Copper x unit", - "id": "copper_x_unit", - "url": "https://physics.nist.gov/cgi-bin/cuu/Value?xucukalph1|search_for=all!", - "symbol": "copper_x_unit", - "value": "1.002 076 97 x 10-13", - "unit": "m Standard uncertainty 0", - "uncertainty": "", - "concise_value": "1.002 076 97" - }, - { - "name": "deuteron g factor", - "id": "deuteron_g_factor", - "url": "https://physics.nist.gov/cgi-bin/cuu/Value?gdn|search_for=all!", - "symbol": "deuteron_g_factor", - "value": "0.857 438 2335", - "unit": "Standard uncertainty 0", - "uncertainty": "", - "concise_value": "0.857 438 2335" - }, - { - "name": "deuteron magnetic moment", - "id": "deuteron_magnetic_moment", - "url": "https://physics.nist.gov/cgi-bin/cuu/Value?mud|search_for=all!", - "symbol": "deuteron_magnetic_moment", - "value": "4.330 735 087 x 10-27", - "unit": "J T-1 Standard uncertainty 0", - "uncertainty": "", - "concise_value": "4.330 735 087" - }, - { - "name": "deuteron magnetic moment to Bohr magneton ratio", - "id": "deuteron_magnetic_moment_to_bohr_magneton_ratio", - "url": "https://physics.nist.gov/cgi-bin/cuu/Value?mudsmub|search_for=all!", - "symbol": "deuteron_magnetic_moment_to_bohr_magneton_ratio", - "value": "4.669 754 568 x 10-4", - "unit": "Standard uncertainty 0", - "uncertainty": "", - "concise_value": "4.669 754 568" - }, - { - "name": "deuteron magnetic moment to nuclear magneton ratio", - "id": "deuteron_magnetic_moment_to_nuclear_magneton_ratio", - "url": "https://physics.nist.gov/cgi-bin/cuu/Value?mudsmun|search_for=all!", - "symbol": "deuteron_magnetic_moment_to_nuclear_magneton_ratio", - "value": "0.857 438 2335", - "unit": "Standard uncertainty 0", - "uncertainty": "", - "concise_value": "0.857 438 2335" - }, - { - "name": "deuteron mass", - "id": "deuteron_mass", - "url": "https://physics.nist.gov/cgi-bin/cuu/Value?md|search_for=all!", - "symbol": "deuteron_mass", - "value": "3.343 583 7768 x 10-27", - "unit": "kg Standard uncertainty 0", - "uncertainty": "", - "concise_value": "3.343 583 7768" - }, - { - "name": "deuteron mass energy equivalent", - "id": "deuteron_mass_energy_equivalent", - "url": "https://physics.nist.gov/cgi-bin/cuu/Value?mdc2|search_for=all!", - "symbol": "deuteron_mass_energy_equivalent", - "value": "3.005 063 234 91 x 10-10", - "unit": "J Standard uncertainty 0", - "uncertainty": "", - "concise_value": "3.005 063 234 91" - }, - { - "name": "deuteron mass energy equivalent in MeV", - "id": "deuteron_mass_energy_equivalent_in_mev", - "url": "https://physics.nist.gov/cgi-bin/cuu/Value?mdc2mev|search_for=all!", - "symbol": "deuteron_mass_energy_equivalent_in_mev", - "value": "1875.612 945 00", - "unit": "MeV Standard uncertainty 0", - "uncertainty": "", - "concise_value": "1875.612 945 00" - }, - { - "name": "deuteron mass in u", - "id": "deuteron_mass_in_u", - "url": "https://physics.nist.gov/cgi-bin/cuu/Value?mdu|search_for=all!", - "symbol": "deuteron_mass_in_u", - "value": "2.013 553 212 544", - "unit": "u Standard uncertainty 0", - "uncertainty": "", - "concise_value": "2.013 553 212 544" - }, - { - "name": "deuteron molar mass", - "id": "deuteron_molar_mass", - "url": "https://physics.nist.gov/cgi-bin/cuu/Value?mmd|search_for=all!", - "symbol": "deuteron_molar_mass", - "value": "2.013 553 214 66 x 10-3", - "unit": "kg mol-1 Standard uncertainty 0", - "uncertainty": "", - "concise_value": "2.013 553 214 66" - }, - { - "name": "deuteron relative atomic mass", - "id": "deuteron_relative_atomic_mass", - "url": "https://physics.nist.gov/cgi-bin/cuu/Value?ard|search_for=all!", - "symbol": "deuteron_relative_atomic_mass", - "value": "2.013 553 212 544", - "unit": "Standard uncertainty 0", - "uncertainty": "", - "concise_value": "2.013 553 212 544" - }, - { - "name": "deuteron rms charge radius", - "id": "deuteron_rms_charge_radius", - "url": "https://physics.nist.gov/cgi-bin/cuu/Value?rd|search_for=all!", - "symbol": "deuteron_rms_charge_radius", - "value": "2.127 78 x 10-15", - "unit": "m Standard uncertainty 0", - "uncertainty": "", - "concise_value": "2.127 78" - }, - { - "name": "deuteron-electron magnetic moment ratio", - "id": "deuteron-electron_magnetic_moment_ratio", - "url": "https://physics.nist.gov/cgi-bin/cuu/Value?mudsmuem|search_for=all!", - "symbol": "deuteron-electron_magnetic_moment_ratio", - "value": "-4.664 345 550 x 10-4", - "unit": "Standard uncertainty 0", - "uncertainty": "", - "concise_value": "-4.664 345 550" - }, - { - "name": "deuteron-electron mass ratio", - "id": "deuteron-electron_mass_ratio", - "url": "https://physics.nist.gov/cgi-bin/cuu/Value?mdsme|search_for=all!", - "symbol": "deuteron-electron_mass_ratio", - "value": "3670.482 967 655", - "unit": "Standard uncertainty 0", - "uncertainty": "", - "concise_value": "3670.482 967 655" - }, - { - "name": "deuteron-neutron magnetic moment ratio", - "id": "deuteron-neutron_magnetic_moment_ratio", - "url": "https://physics.nist.gov/cgi-bin/cuu/Value?mudsmunn|search_for=all!", - "symbol": "deuteron-neutron_magnetic_moment_ratio", - "value": "-0.448 206 52", - "unit": "Standard uncertainty 0", - "uncertainty": "", - "concise_value": "-0.448 206 52" - }, - { - "name": "deuteron-proton magnetic moment ratio", - "id": "deuteron-proton_magnetic_moment_ratio", - "url": "https://physics.nist.gov/cgi-bin/cuu/Value?mudsmup|search_for=all!", - "symbol": "deuteron-proton_magnetic_moment_ratio", - "value": "0.307 012 209 30", - "unit": "Standard uncertainty 0", - "uncertainty": "", - "concise_value": "0.307 012 209 30" - }, - { - "name": "deuteron-proton mass ratio", - "id": "deuteron-proton_mass_ratio", - "url": "https://physics.nist.gov/cgi-bin/cuu/Value?mdsmp|search_for=all!", - "symbol": "deuteron-proton_mass_ratio", - "value": "1.999 007 501 2699", - "unit": "Standard uncertainty 0", - "uncertainty": "", - "concise_value": "1.999 007 501 2699" - }, - { - "name": "electron charge to mass quotient", - "id": "electron_charge_to_mass_quotient", - "url": "https://physics.nist.gov/cgi-bin/cuu/Value?esme|search_for=all!", - "symbol": "electron_charge_to_mass_quotient", - "value": "-1.758 820 008 38 x 1011", - "unit": "C kg-1 Standard uncertainty 0", - "uncertainty": "", - "concise_value": "-1.758 820 008 38" - }, - { - "name": "electron g factor", - "id": "electron_g_factor", - "url": "https://physics.nist.gov/cgi-bin/cuu/Value?gem|search_for=all!", - "symbol": "electron_g_factor", - "value": "-2.002 319 304 360 92", - "unit": "Standard uncertainty 0", - "uncertainty": "", - "concise_value": "-2.002 319 304 360 92" - }, - { - "name": "electron gyromagnetic ratio", - "id": "electron_gyromagnetic_ratio", - "url": "https://physics.nist.gov/cgi-bin/cuu/Value?gammae|search_for=all!", - "symbol": "electron_gyromagnetic_ratio", - "value": "1.760 859 627 84 x 1011", - "unit": "s-1 T-1 Standard uncertainty 0", - "uncertainty": "", - "concise_value": "1.760 859 627 84" - }, - { - "name": "electron gyromagnetic ratio in MHz/T", - "id": "electron_gyromagnetic_ratio_in_mhz/t", - "url": "https://physics.nist.gov/cgi-bin/cuu/Value?gammaebar|search_for=all!", - "symbol": "electron_gyromagnetic_ratio_in_mhz/t", - "value": "28 024.951 3861", - "unit": "MHz T-1 Standard uncertainty 0", - "uncertainty": "", - "concise_value": "28 024.951 3861" - }, - { - "name": "electron magnetic moment", - "id": "electron_magnetic_moment", - "url": "https://physics.nist.gov/cgi-bin/cuu/Value?muem|search_for=all!", - "symbol": "electron_magnetic_moment", - "value": "-9.284 764 6917 x 10-24", - "unit": "J T-1 Standard uncertainty 0", - "uncertainty": "", - "concise_value": "-9.284 764 6917" - }, - { - "name": "electron magnetic moment anomaly", - "id": "electron_magnetic_moment_anomaly", - "url": "https://physics.nist.gov/cgi-bin/cuu/Value?ae|search_for=all!", - "symbol": "electron_magnetic_moment_anomaly", - "value": "1.159 652 180 46 x 10-3", - "unit": "Standard uncertainty 0", - "uncertainty": "", - "concise_value": "1.159 652 180 46" - }, - { - "name": "electron magnetic moment to Bohr magneton ratio", - "id": "electron_magnetic_moment_to_bohr_magneton_ratio", - "url": "https://physics.nist.gov/cgi-bin/cuu/Value?muemsmub|search_for=all!", - "symbol": "electron_magnetic_moment_to_bohr_magneton_ratio", - "value": "-1.001 159 652 180 46", - "unit": "Standard uncertainty 0", - "uncertainty": "", - "concise_value": "-1.001 159 652 180 46" - }, - { - "name": "electron magnetic moment to nuclear magneton ratio", - "id": "electron_magnetic_moment_to_nuclear_magneton_ratio", - "url": "https://physics.nist.gov/cgi-bin/cuu/Value?muemsmun|search_for=all!", - "symbol": "electron_magnetic_moment_to_nuclear_magneton_ratio", - "value": "-1838.281 971 877", - "unit": "Standard uncertainty 0", - "uncertainty": "", - "concise_value": "-1838.281 971 877" - }, - { - "name": "electron mass", - "id": "electron_mass", - "url": "https://physics.nist.gov/cgi-bin/cuu/Value?me|search_for=all!", - "symbol": "electron_mass", - "value": "9.109 383 7139 x 10-31", - "unit": "kg Standard uncertainty 0", - "uncertainty": "", - "concise_value": "9.109 383 7139" - }, - { - "name": "electron mass energy equivalent", - "id": "electron_mass_energy_equivalent", - "url": "https://physics.nist.gov/cgi-bin/cuu/Value?mec2|search_for=all!", - "symbol": "electron_mass_energy_equivalent", - "value": "8.187 105 7880 x 10-14", - "unit": "J Standard uncertainty 0", - "uncertainty": "", - "concise_value": "8.187 105 7880" - }, - { - "name": "electron mass energy equivalent in MeV", - "id": "electron_mass_energy_equivalent_in_mev", - "url": "https://physics.nist.gov/cgi-bin/cuu/Value?mec2mev|search_for=all!", - "symbol": "electron_mass_energy_equivalent_in_mev", - "value": "0.510 998 950 69", - "unit": "MeV Standard uncertainty 0", - "uncertainty": "", - "concise_value": "0.510 998 950 69" - }, - { - "name": "electron mass in u", - "id": "electron_mass_in_u", - "url": "https://physics.nist.gov/cgi-bin/cuu/Value?meu|search_for=all!", - "symbol": "electron_mass_in_u", - "value": "5.485 799 090 441 x 10-4", - "unit": "u Standard uncertainty 0", - "uncertainty": "", - "concise_value": "5.485 799 090 441" - }, - { - "name": "electron molar mass", - "id": "electron_molar_mass", - "url": "https://physics.nist.gov/cgi-bin/cuu/Value?mme|search_for=all!", - "symbol": "electron_molar_mass", - "value": "5.485 799 0962 x 10-7", - "unit": "kg mol-1 Standard uncertainty 0", - "uncertainty": "", - "concise_value": "5.485 799 0962" - }, - { - "name": "electron relative atomic mass", - "id": "electron_relative_atomic_mass", - "url": "https://physics.nist.gov/cgi-bin/cuu/Value?are|search_for=all!", - "symbol": "electron_relative_atomic_mass", - "value": "5.485 799 090 441 x 10-4", - "unit": "Standard uncertainty 0", - "uncertainty": "", - "concise_value": "5.485 799 090 441" - }, - { - "name": "electron to alpha particle mass ratio", - "id": "electron_to_alpha_particle_mass_ratio", - "url": "https://physics.nist.gov/cgi-bin/cuu/Value?mesmalpha|search_for=all!", - "symbol": "electron_to_alpha_particle_mass_ratio", - "value": "1.370 933 554 733 x 10-4", - "unit": "Standard uncertainty 0", - "uncertainty": "", - "concise_value": "1.370 933 554 733" - }, - { - "name": "electron to shielded helion magnetic moment ratio", - "id": "electron_to_shielded_helion_magnetic_moment_ratio", - "url": "https://physics.nist.gov/cgi-bin/cuu/Value?muemsmuhp|search_for=all!", - "symbol": "electron_to_shielded_helion_magnetic_moment_ratio", - "value": "864.058 239 86", - "unit": "Standard uncertainty 0", - "uncertainty": "", - "concise_value": "864.058 239 86" - }, - { - "name": "electron to shielded proton magnetic moment ratio", - "id": "electron_to_shielded_proton_magnetic_moment_ratio", - "url": "https://physics.nist.gov/cgi-bin/cuu/Value?muemsmupp|search_for=all!", - "symbol": "electron_to_shielded_proton_magnetic_moment_ratio", - "value": "-658.227 5856", - "unit": "Standard uncertainty 0", - "uncertainty": "", - "concise_value": "-658.227 5856" - }, - { - "name": "electron volt", - "id": "electron_volt", - "url": "https://physics.nist.gov/cgi-bin/cuu/Value?evj|search_for=all!", - "symbol": "electron_volt", - "value": "1.602 176 634 x 10-19", - "unit": "J Standard uncertainty", - "uncertainty": "", - "concise_value": "1.602 176 634 x 10-19", - "concise_unit": "J Click here for correlation coefficient of this constant with other constants" - }, - { - "name": "electron volt-atomic mass unit relationship", - "id": "electron_volt-atomic_mass_unit_relationship", - "url": "https://physics.nist.gov/cgi-bin/cuu/Value?evu|search_for=all!", - "symbol": "electron_volt-atomic_mass_unit_relationship", - "value": "1.073 544 100 83 x 10-9", - "unit": "u Standard uncertainty 0", - "uncertainty": "", - "concise_value": "1.073 544 100 83" - }, - { - "name": "electron volt-hartree relationship", - "id": "electron_volt-hartree_relationship", - "url": "https://physics.nist.gov/cgi-bin/cuu/Value?evhr|search_for=all!", - "symbol": "electron_volt-hartree_relationship", - "value": "3.674 932 217 5665 x 10-2", - "unit": "Eh Standard uncertainty 0", - "uncertainty": "", - "concise_value": "3.674 932 217 5665" - }, - { - "name": "electron volt-hertz relationship", - "id": "electron_volt-hertz_relationship", - "url": "https://physics.nist.gov/cgi-bin/cuu/Value?evhz|search_for=all!", - "symbol": "electron_volt-hertz_relationship", - "value": "2.417 989 242... x 1014", - "unit": "Hz Standard uncertainty", - "uncertainty": "", - "concise_value": "2.417 989 242... x 1014", - "concise_unit": "Hz Click here for correlation coefficient of this constant with other constants" - }, - { - "name": "electron volt-inverse meter relationship", - "id": "electron_volt-inverse_meter_relationship", - "url": "https://physics.nist.gov/cgi-bin/cuu/Value?evminv|search_for=all!", - "symbol": "electron_volt-inverse_meter_relationship", - "value": "8.065 543 937... x 105", - "unit": "m-1 Standard uncertainty", - "uncertainty": "", - "concise_value": "8.065 543 937... x 105", - "concise_unit": "m-1" - }, - { - "name": "electron volt-joule relationship", - "id": "electron_volt-joule_relationship", - "url": "https://physics.nist.gov/cgi-bin/cuu/Value?Revj|search_for=all!", - "symbol": "electron_volt-joule_relationship", - "value": "1.602 176 634 x 10-19", - "unit": "J Standard uncertainty", - "uncertainty": "", - "concise_value": "1.602 176 634 x 10-19", - "concise_unit": "J Click here for correlation coefficient of this constant with other constants" - }, - { - "name": "electron volt-kelvin relationship", - "id": "electron_volt-kelvin_relationship", - "url": "https://physics.nist.gov/cgi-bin/cuu/Value?evk|search_for=all!", - "symbol": "electron_volt-kelvin_relationship", - "value": "1.160 451 812... x 104", - "unit": "K Standard uncertainty", - "uncertainty": "", - "concise_value": "1.160 451 812... x 104", - "concise_unit": "K Click here for correlation coefficient of this constant with other constants" - }, - { - "name": "electron volt-kilogram relationship", - "id": "electron_volt-kilogram_relationship", - "url": "https://physics.nist.gov/cgi-bin/cuu/Value?evkg|search_for=all!", - "symbol": "electron_volt-kilogram_relationship", - "value": "1.782 661 921... x 10-36", - "unit": "kg Standard uncertainty", - "uncertainty": "", - "concise_value": "1.782 661 921... x 10-36", - "concise_unit": "kg Click here for correlation coefficient of this constant with other constants" - }, - { - "name": "electron-deuteron magnetic moment ratio", - "id": "electron-deuteron_magnetic_moment_ratio", - "url": "https://physics.nist.gov/cgi-bin/cuu/Value?muemsmud|search_for=all!", - "symbol": "electron-deuteron_magnetic_moment_ratio", - "value": "-2143.923 4921", - "unit": "Standard uncertainty 0", - "uncertainty": "", - "concise_value": "-2143.923 4921" - }, - { - "name": "electron-deuteron mass ratio", - "id": "electron-deuteron_mass_ratio", - "url": "https://physics.nist.gov/cgi-bin/cuu/Value?mesmd|search_for=all!", - "symbol": "electron-deuteron_mass_ratio", - "value": "2.724 437 107 629 x 10-4", - "unit": "Standard uncertainty 0", - "uncertainty": "", - "concise_value": "2.724 437 107 629" - }, - { - "name": "electron-helion mass ratio", - "id": "electron-helion_mass_ratio", - "url": "https://physics.nist.gov/cgi-bin/cuu/Value?mesmh|search_for=all!", - "symbol": "electron-helion_mass_ratio", - "value": "1.819 543 074 649 x 10-4", - "unit": "Standard uncertainty 0", - "uncertainty": "", - "concise_value": "1.819 543 074 649" - }, - { - "name": "electron-muon magnetic moment ratio", - "id": "electron-muon_magnetic_moment_ratio", - "url": "https://physics.nist.gov/cgi-bin/cuu/Value?muemsmumum|search_for=all!", - "symbol": "electron-muon_magnetic_moment_ratio", - "value": "206.766 9881", - "unit": "Standard uncertainty 0", - "uncertainty": "", - "concise_value": "206.766 9881" - }, - { - "name": "electron-muon mass ratio", - "id": "electron-muon_mass_ratio", - "url": "https://physics.nist.gov/cgi-bin/cuu/Value?mesmmu|search_for=all!", - "symbol": "electron-muon_mass_ratio", - "value": "4.836 331 70 x 10-3", - "unit": "Standard uncertainty 0", - "uncertainty": "", - "concise_value": "4.836 331 70" - }, - { - "name": "electron-neutron magnetic moment ratio", - "id": "electron-neutron_magnetic_moment_ratio", - "url": "https://physics.nist.gov/cgi-bin/cuu/Value?muemsmunn|search_for=all!", - "symbol": "electron-neutron_magnetic_moment_ratio", - "value": "960.920 48", - "unit": "Standard uncertainty 0", - "uncertainty": "", - "concise_value": "960.920 48" - }, - { - "name": "electron-neutron mass ratio", - "id": "electron-neutron_mass_ratio", - "url": "https://physics.nist.gov/cgi-bin/cuu/Value?mesmn|search_for=all!", - "symbol": "electron-neutron_mass_ratio", - "value": "5.438 673 4416 x 10-4", - "unit": "Standard uncertainty 0", - "uncertainty": "", - "concise_value": "5.438 673 4416" - }, - { - "name": "electron-proton magnetic moment ratio", - "id": "electron-proton_magnetic_moment_ratio", - "url": "https://physics.nist.gov/cgi-bin/cuu/Value?muemsmup|search_for=all!", - "symbol": "electron-proton_magnetic_moment_ratio", - "value": "-658.210 687 89", - "unit": "Standard uncertainty 0", - "uncertainty": "", - "concise_value": "-658.210 687 89" - }, - { - "name": "electron-proton mass ratio", - "id": "electron-proton_mass_ratio", - "url": "https://physics.nist.gov/cgi-bin/cuu/Value?mesmp|search_for=all!", - "symbol": "electron-proton_mass_ratio", - "value": "5.446 170 214 889 x 10-4", - "unit": "Standard uncertainty 0", - "uncertainty": "", - "concise_value": "5.446 170 214 889" - }, - { - "name": "electron-tau mass ratio", - "id": "electron-tau_mass_ratio", - "url": "https://physics.nist.gov/cgi-bin/cuu/Value?mesmtau|search_for=all!", - "symbol": "electron-tau_mass_ratio", - "value": "2.875 85 x 10-4", - "unit": "Standard uncertainty 0", - "uncertainty": "", - "concise_value": "2.875 85" - }, - { - "name": "electron-triton mass ratio", - "id": "electron-triton_mass_ratio", - "url": "https://physics.nist.gov/cgi-bin/cuu/Value?mesmt|search_for=all!", - "symbol": "electron-triton_mass_ratio", - "value": "1.819 200 062 327 x 10-4", - "unit": "Standard uncertainty 0", - "uncertainty": "", - "concise_value": "1.819 200 062 327" - }, - { - "name": "elementary charge", - "id": "elementary_charge", - "url": "https://physics.nist.gov/cgi-bin/cuu/Value?e|search_for=all!", - "symbol": "elementary_charge", - "value": "1.602 176 634 x 10-19", - "unit": "C Standard uncertainty", - "uncertainty": "", - "concise_value": "1.602 176 634 x 10-19", - "concise_unit": "C Click here for correlation coefficient of this constant with other constants" - }, - { - "name": "elementary charge over h-bar", - "id": "elementary_charge_over_h-bar", - "url": "https://physics.nist.gov/cgi-bin/cuu/Value?eshbar|search_for=all!", - "symbol": "elementary_charge_over_h-bar", - "value": "1.519 267 447... x 1015", - "unit": "A J-1 Standard uncertainty", - "uncertainty": "", - "concise_value": "1.519 267 447... x 1015", - "concise_unit": "A J-1 Click here for correlation coefficient of this constant with other constants" - }, - { - "name": "Faraday constant", - "id": "faraday_constant", - "url": "https://physics.nist.gov/cgi-bin/cuu/Value?f|search_for=all!", - "symbol": "faraday_constant", - "value": "96 485.332 12...", - "unit": "C mol-1 Standard uncertainty", - "uncertainty": "", - "concise_value": "96 485.332 12...", - "concise_unit": "C mol-1 Click here for correlation coefficient of this constant with other constants" - }, - { - "name": "Fermi coupling constant", - "id": "fermi_coupling_constant", - "url": "https://physics.nist.gov/cgi-bin/cuu/Value?gf|search_for=all!", - "symbol": "fermi_coupling_constant", - "value": "1.166 3787 x 10-5", - "unit": "GeV-2 Standard uncertainty 0", - "uncertainty": "", - "concise_value": "1.166 3787" - }, - { - "name": "fine-structure constant", - "id": "fine-structure_constant", - "url": "https://physics.nist.gov/cgi-bin/cuu/Value?alph|search_for=all!", - "symbol": "fine-structure_constant", - "value": "7.297 352 5643 x 10-3", - "unit": "Standard uncertainty 0", - "uncertainty": "", - "concise_value": "7.297 352 5643" - }, - { - "name": "first radiation constant", - "id": "first_radiation_constant", - "url": "https://physics.nist.gov/cgi-bin/cuu/Value?c11strc|search_for=all!", - "symbol": "first_radiation_constant", - "value": "3.741 771 852... x 10-16", - "unit": "W m2 Standard uncertainty", - "uncertainty": "", - "concise_value": "3.741 771 852... x 10-16", - "concise_unit": "W m2" - }, - { - "name": "first radiation constant for spectral radiance", - "id": "first_radiation_constant_for_spectral_radiance", - "url": "https://physics.nist.gov/cgi-bin/cuu/Value?c1l|search_for=all!", - "symbol": "first_radiation_constant_for_spectral_radiance", - "value": "1.191 042 972... x 10-16", - "unit": "W m2 sr-1 Standard uncertainty", - "uncertainty": "", - "concise_value": "1.191 042 972... x 10-16", - "concise_unit": "W m2 sr-1" - }, - { - "name": "Hartree energy", - "id": "hartree_energy", - "url": "https://physics.nist.gov/cgi-bin/cuu/Value?hr|search_for=all!", - "symbol": "hartree_energy", - "value": "4.359 744 722 2060 x 10-18", - "unit": "J Standard uncertainty 0", - "uncertainty": "", - "concise_value": "4.359 744 722 2060" - }, - { - "name": "Hartree energy in eV", - "id": "hartree_energy_in_ev", - "url": "https://physics.nist.gov/cgi-bin/cuu/Value?hrev|search_for=all!", - "symbol": "hartree_energy_in_ev", - "value": "27.211 386 245 981", - "unit": "eV Standard uncertainty 0", - "uncertainty": "", - "concise_value": "27.211 386 245 981" - }, - { - "name": "hartree-atomic mass unit relationship", - "id": "hartree-atomic_mass_unit_relationship", - "url": "https://physics.nist.gov/cgi-bin/cuu/Value?hru|search_for=all!", - "symbol": "hartree-atomic_mass_unit_relationship", - "value": "2.921 262 317 97 x 10-8", - "unit": "u Standard uncertainty 0", - "uncertainty": "", - "concise_value": "2.921 262 317 97" - }, - { - "name": "hartree-electron volt relationship", - "id": "hartree-electron_volt_relationship", - "url": "https://physics.nist.gov/cgi-bin/cuu/Value?Rhrev|search_for=all!", - "symbol": "hartree-electron_volt_relationship", - "value": "27.211 386 245 981", - "unit": "eV Standard uncertainty 0", - "uncertainty": "", - "concise_value": "27.211 386 245 981" - }, - { - "name": "hartree-hertz relationship", - "id": "hartree-hertz_relationship", - "url": "https://physics.nist.gov/cgi-bin/cuu/Value?hrhz|search_for=all!", - "symbol": "hartree-hertz_relationship", - "value": "6.579 683 920 4999 x 1015", - "unit": "Hz Standard uncertainty 0", - "uncertainty": "", - "concise_value": "6.579 683 920 4999" - }, - { - "name": "hartree-inverse meter relationship", - "id": "hartree-inverse_meter_relationship", - "url": "https://physics.nist.gov/cgi-bin/cuu/Value?hrminv|search_for=all!", - "symbol": "hartree-inverse_meter_relationship", - "value": "2.194 746 313 6314 x 107", - "unit": "m-1 Standard uncertainty 0", - "uncertainty": "", - "concise_value": "2.194 746 313 6314" - }, - { - "name": "hartree-joule relationship", - "id": "hartree-joule_relationship", - "url": "https://physics.nist.gov/cgi-bin/cuu/Value?hrj|search_for=all!", - "symbol": "hartree-joule_relationship", - "value": "4.359 744 722 2060 x 10-18", - "unit": "J Standard uncertainty 0", - "uncertainty": "", - "concise_value": "4.359 744 722 2060" - }, - { - "name": "hartree-kelvin relationship", - "id": "hartree-kelvin_relationship", - "url": "https://physics.nist.gov/cgi-bin/cuu/Value?hrk|search_for=all!", - "symbol": "hartree-kelvin_relationship", - "value": "3.157 750 248 0398 x 105", - "unit": "K Standard uncertainty 0", - "uncertainty": "", - "concise_value": "3.157 750 248 0398" - }, - { - "name": "hartree-kilogram relationship", - "id": "hartree-kilogram_relationship", - "url": "https://physics.nist.gov/cgi-bin/cuu/Value?hrkg|search_for=all!", - "symbol": "hartree-kilogram_relationship", - "value": "4.850 870 209 5419 x 10-35", - "unit": "kg Standard uncertainty 0", - "uncertainty": "", - "concise_value": "4.850 870 209 5419" - }, - { - "name": "helion g factor", - "id": "helion_g_factor", - "url": "https://physics.nist.gov/cgi-bin/cuu/Value?ghn|search_for=all!", - "symbol": "helion_g_factor", - "value": "-4.255 250 6995", - "unit": "Standard uncertainty 0", - "uncertainty": "", - "concise_value": "-4.255 250 6995" - }, - { - "name": "helion magnetic moment", - "id": "helion_magnetic_moment", - "url": "https://physics.nist.gov/cgi-bin/cuu/Value?muh|search_for=all!", - "symbol": "helion_magnetic_moment", - "value": "-1.074 617 551 98 x 10-26", - "unit": "J T-1 Standard uncertainty 0", - "uncertainty": "", - "concise_value": "-1.074 617 551 98" - }, - { - "name": "helion magnetic moment to Bohr magneton ratio", - "id": "helion_magnetic_moment_to_bohr_magneton_ratio", - "url": "https://physics.nist.gov/cgi-bin/cuu/Value?muhsmub|search_for=all!", - "symbol": "helion_magnetic_moment_to_bohr_magneton_ratio", - "value": "-1.158 740 980 83 x 10-3", - "unit": "Standard uncertainty 0", - "uncertainty": "", - "concise_value": "-1.158 740 980 83" - }, - { - "name": "helion magnetic moment to nuclear magneton ratio", - "id": "helion_magnetic_moment_to_nuclear_magneton_ratio", - "url": "https://physics.nist.gov/cgi-bin/cuu/Value?muhsmun|search_for=all!", - "symbol": "helion_magnetic_moment_to_nuclear_magneton_ratio", - "value": "-2.127 625 3498", - "unit": "Standard uncertainty 0", - "uncertainty": "", - "concise_value": "-2.127 625 3498" - }, - { - "name": "helion mass", - "id": "helion_mass", - "url": "https://physics.nist.gov/cgi-bin/cuu/Value?mh|search_for=all!", - "symbol": "helion_mass", - "value": "5.006 412 7862 x 10-27", - "unit": "kg Standard uncertainty 0", - "uncertainty": "", - "concise_value": "5.006 412 7862" - }, - { - "name": "helion mass energy equivalent", - "id": "helion_mass_energy_equivalent", - "url": "https://physics.nist.gov/cgi-bin/cuu/Value?mhc2|search_for=all!", - "symbol": "helion_mass_energy_equivalent", - "value": "4.499 539 4185 x 10-10", - "unit": "J Standard uncertainty 0", - "uncertainty": "", - "concise_value": "4.499 539 4185" - }, - { - "name": "helion mass energy equivalent in MeV", - "id": "helion_mass_energy_equivalent_in_mev", - "url": "https://physics.nist.gov/cgi-bin/cuu/Value?mhc2mev|search_for=all!", - "symbol": "helion_mass_energy_equivalent_in_mev", - "value": "2808.391 611 12", - "unit": "MeV Standard uncertainty 0", - "uncertainty": "", - "concise_value": "2808.391 611 12" - }, - { - "name": "helion mass in u", - "id": "helion_mass_in_u", - "url": "https://physics.nist.gov/cgi-bin/cuu/Value?mhu|search_for=all!", - "symbol": "helion_mass_in_u", - "value": "3.014 932 246 932", - "unit": "u Standard uncertainty 0", - "uncertainty": "", - "concise_value": "3.014 932 246 932" - }, - { - "name": "helion molar mass", - "id": "helion_molar_mass", - "url": "https://physics.nist.gov/cgi-bin/cuu/Value?mmh|search_for=all!", - "symbol": "helion_molar_mass", - "value": "3.014 932 250 10 x 10-3", - "unit": "kg mol-1 Standard uncertainty 0", - "uncertainty": "", - "concise_value": "3.014 932 250 10" - }, - { - "name": "helion relative atomic mass", - "id": "helion_relative_atomic_mass", - "url": "https://physics.nist.gov/cgi-bin/cuu/Value?arh|search_for=all!", - "symbol": "helion_relative_atomic_mass", - "value": "3.014 932 246 932", - "unit": "Standard uncertainty 0", - "uncertainty": "", - "concise_value": "3.014 932 246 932" - }, - { - "name": "helion shielding shift", - "id": "helion_shielding_shift", - "url": "https://physics.nist.gov/cgi-bin/cuu/Value?sigmah|search_for=all!", - "symbol": "helion_shielding_shift", - "value": "5.996 7029 x 10-5", - "unit": "Standard uncertainty 0", - "uncertainty": "", - "concise_value": "5.996 7029" - }, - { - "name": "helion-electron mass ratio", - "id": "helion-electron_mass_ratio", - "url": "https://physics.nist.gov/cgi-bin/cuu/Value?mhsme|search_for=all!", - "symbol": "helion-electron_mass_ratio", - "value": "5495.885 279 84", - "unit": "Standard uncertainty 0", - "uncertainty": "", - "concise_value": "5495.885 279 84" - }, - { - "name": "helion-proton mass ratio", - "id": "helion-proton_mass_ratio", - "url": "https://physics.nist.gov/cgi-bin/cuu/Value?mhsmp|search_for=all!", - "symbol": "helion-proton_mass_ratio", - "value": "2.993 152 671 552", - "unit": "Standard uncertainty 0", - "uncertainty": "", - "concise_value": "2.993 152 671 552" - }, - { - "name": "hertz-atomic mass unit relationship", - "id": "hertz-atomic_mass_unit_relationship", - "url": "https://physics.nist.gov/cgi-bin/cuu/Value?hzu|search_for=all!", - "symbol": "hertz-atomic_mass_unit_relationship", - "value": "4.439 821 6590 x 10-24", - "unit": "u Standard uncertainty 0", - "uncertainty": "", - "concise_value": "4.439 821 6590" - }, - { - "name": "hertz-electron volt relationship", - "id": "hertz-electron_volt_relationship", - "url": "https://physics.nist.gov/cgi-bin/cuu/Value?hzev|search_for=all!", - "symbol": "hertz-electron_volt_relationship", - "value": "4.135 667 696... x 10-15", - "unit": "eV Standard uncertainty", - "uncertainty": "", - "concise_value": "4.135 667 696... x 10-15", - "concise_unit": "eV Click here for correlation coefficient of this constant with other constants" - }, - { - "name": "hertz-hartree relationship", - "id": "hertz-hartree_relationship", - "url": "https://physics.nist.gov/cgi-bin/cuu/Value?hzhr|search_for=all!", - "symbol": "hertz-hartree_relationship", - "value": "1.519 829 846 0574 x 10-16", - "unit": "Eh Standard uncertainty 0", - "uncertainty": "", - "concise_value": "1.519 829 846 0574" - }, - { - "name": "hertz-inverse meter relationship", - "id": "hertz-inverse_meter_relationship", - "url": "https://physics.nist.gov/cgi-bin/cuu/Value?hzminv|search_for=all!", - "symbol": "hertz-inverse_meter_relationship", - "value": "3.335 640 951... x 10-9", - "unit": "m-1 Standard uncertainty", - "uncertainty": "", - "concise_value": "3.335 640 951... x 10-9", - "concise_unit": "m-1" - }, - { - "name": "hertz-joule relationship", - "id": "hertz-joule_relationship", - "url": "https://physics.nist.gov/cgi-bin/cuu/Value?hzj|search_for=all!", - "symbol": "hertz-joule_relationship", - "value": "6.626 070 15 x 10-34", - "unit": "J Standard uncertainty", - "uncertainty": "", - "concise_value": "6.626 070 15 x 10-34", - "concise_unit": "J Click here for correlation coefficient of this constant with other constants" - }, - { - "name": "hertz-kelvin relationship", - "id": "hertz-kelvin_relationship", - "url": "https://physics.nist.gov/cgi-bin/cuu/Value?hzk|search_for=all!", - "symbol": "hertz-kelvin_relationship", - "value": "4.799 243 073... x 10-11", - "unit": "K Standard uncertainty", - "uncertainty": "", - "concise_value": "4.799 243 073... x 10-11", - "concise_unit": "K Click here for correlation coefficient of this constant with other constants" - }, - { - "name": "hertz-kilogram relationship", - "id": "hertz-kilogram_relationship", - "url": "https://physics.nist.gov/cgi-bin/cuu/Value?hzkg|search_for=all!", - "symbol": "hertz-kilogram_relationship", - "value": "7.372 497 323... x 10-51", - "unit": "kg Standard uncertainty", - "uncertainty": "", - "concise_value": "7.372 497 323... x 10-51", - "concise_unit": "kg Click here for correlation coefficient of this constant with other constants" - }, - { - "name": "hyperfine transition frequency of Cs-133", - "id": "hyperfine_transition_frequency_of_cs-133", - "url": "https://physics.nist.gov/cgi-bin/cuu/Value?nucs|search_for=all!", - "symbol": "hyperfine_transition_frequency_of_cs-133", - "value": "9 192 631 770", - "unit": "Hz Standard uncertainty", - "uncertainty": "", - "concise_value": "9 192 631 770", - "concise_unit": "Hz Click here for correlation coefficient of this constant with other constants" - }, - { - "name": "inverse fine-structure constant", - "id": "inverse_fine-structure_constant", - "url": "https://physics.nist.gov/cgi-bin/cuu/Value?alphinv|search_for=all!", - "symbol": "inverse_fine-structure_constant", - "value": "137.035 999 177", - "unit": "Standard uncertainty 0", - "uncertainty": "", - "concise_value": "137.035 999 177" - }, - { - "name": "inverse meter-atomic mass unit relationship", - "id": "inverse_meter-atomic_mass_unit_relationship", - "url": "https://physics.nist.gov/cgi-bin/cuu/Value?minvu|search_for=all!", - "symbol": "inverse_meter-atomic_mass_unit_relationship", - "value": "1.331 025 048 24 x 10-15", - "unit": "u Standard uncertainty 0", - "uncertainty": "", - "concise_value": "1.331 025 048 24" - }, - { - "name": "inverse meter-electron volt relationship", - "id": "inverse_meter-electron_volt_relationship", - "url": "https://physics.nist.gov/cgi-bin/cuu/Value?minvev|search_for=all!", - "symbol": "inverse_meter-electron_volt_relationship", - "value": "1.239 841 984... x 10-6", - "unit": "eV Standard uncertainty", - "uncertainty": "", - "concise_value": "1.239 841 984... x 10-6", - "concise_unit": "eV" - }, - { - "name": "inverse meter-hartree relationship", - "id": "inverse_meter-hartree_relationship", - "url": "https://physics.nist.gov/cgi-bin/cuu/Value?minvhr|search_for=all!", - "symbol": "inverse_meter-hartree_relationship", - "value": "4.556 335 252 9132 x 10-8", - "unit": "Eh Standard uncertainty 0", - "uncertainty": "", - "concise_value": "4.556 335 252 9132" - }, - { - "name": "inverse meter-hertz relationship", - "id": "inverse_meter-hertz_relationship", - "url": "https://physics.nist.gov/cgi-bin/cuu/Value?minvhz|search_for=all!", - "symbol": "inverse_meter-hertz_relationship", - "value": "299 792 458", - "unit": "Hz Standard uncertainty", - "uncertainty": "", - "concise_value": "299 792 458", - "concise_unit": "Hz" - }, - { - "name": "inverse meter-joule relationship", - "id": "inverse_meter-joule_relationship", - "url": "https://physics.nist.gov/cgi-bin/cuu/Value?minvj|search_for=all!", - "symbol": "inverse_meter-joule_relationship", - "value": "1.986 445 857... x 10-25", - "unit": "J Standard uncertainty", - "uncertainty": "", - "concise_value": "1.986 445 857... x 10-25", - "concise_unit": "J" - }, - { - "name": "inverse meter-kelvin relationship", - "id": "inverse_meter-kelvin_relationship", - "url": "https://physics.nist.gov/cgi-bin/cuu/Value?minvk|search_for=all!", - "symbol": "inverse_meter-kelvin_relationship", - "value": "1.438 776 877... x 10-2", - "unit": "K Standard uncertainty", - "uncertainty": "", - "concise_value": "1.438 776 877... x 10-2", - "concise_unit": "K" - }, - { - "name": "inverse meter-kilogram relationship", - "id": "inverse_meter-kilogram_relationship", - "url": "https://physics.nist.gov/cgi-bin/cuu/Value?minvkg|search_for=all!", - "symbol": "inverse_meter-kilogram_relationship", - "value": "2.210 219 094... x 10-42", - "unit": "kg Standard uncertainty", - "uncertainty": "", - "concise_value": "2.210 219 094... x 10-42", - "concise_unit": "kg" - }, - { - "name": "inverse of conductance quantum", - "id": "inverse_of_conductance_quantum", - "url": "https://physics.nist.gov/cgi-bin/cuu/Value?invconqu|search_for=all!", - "symbol": "inverse_of_conductance_quantum", - "value": "12 906.403 72...", - "unit": "Standard uncertainty", - "uncertainty": "", - "concise_value": "12 906.403 72...", - "concise_unit": "Click here for correlation coefficient of this constant with other constants" - }, - { - "name": "Josephson constant", - "id": "josephson_constant", - "url": "https://physics.nist.gov/cgi-bin/cuu/Value?kjos|search_for=all!", - "symbol": "josephson_constant", - "value": "483 597.848 4... x 109", - "unit": "Hz V-1 Standard uncertainty", - "uncertainty": "", - "concise_value": "483 597.848 4... x 109", - "concise_unit": "Hz V-1 Click here for correlation coefficient of this constant with other constants" - }, - { - "name": "joule-atomic mass unit relationship", - "id": "joule-atomic_mass_unit_relationship", - "url": "https://physics.nist.gov/cgi-bin/cuu/Value?ju|search_for=all!", - "symbol": "joule-atomic_mass_unit_relationship", - "value": "6.700 535 2471 x 109", - "unit": "u Standard uncertainty 0", - "uncertainty": "", - "concise_value": "6.700 535 2471" - }, - { - "name": "joule-electron volt relationship", - "id": "joule-electron_volt_relationship", - "url": "https://physics.nist.gov/cgi-bin/cuu/Value?jev|search_for=all!", - "symbol": "joule-electron_volt_relationship", - "value": "6.241 509 074... x 1018", - "unit": "eV Standard uncertainty", - "uncertainty": "", - "concise_value": "6.241 509 074... x 1018", - "concise_unit": "eV Click here for correlation coefficient of this constant with other constants" - }, - { - "name": "joule-hartree relationship", - "id": "joule-hartree_relationship", - "url": "https://physics.nist.gov/cgi-bin/cuu/Value?jhr|search_for=all!", - "symbol": "joule-hartree_relationship", - "value": "2.293 712 278 3969 x 1017", - "unit": "Eh Standard uncertainty 0", - "uncertainty": "", - "concise_value": "2.293 712 278 3969" - }, - { - "name": "joule-hertz relationship", - "id": "joule-hertz_relationship", - "url": "https://physics.nist.gov/cgi-bin/cuu/Value?jhz|search_for=all!", - "symbol": "joule-hertz_relationship", - "value": "1.509 190 179... x 1033", - "unit": "Hz Standard uncertainty", - "uncertainty": "", - "concise_value": "1.509 190 179... x 1033", - "concise_unit": "Hz Click here for correlation coefficient of this constant with other constants" - }, - { - "name": "joule-inverse meter relationship", - "id": "joule-inverse_meter_relationship", - "url": "https://physics.nist.gov/cgi-bin/cuu/Value?jminv|search_for=all!", - "symbol": "joule-inverse_meter_relationship", - "value": "5.034 116 567... x 1024", - "unit": "m-1 Standard uncertainty", - "uncertainty": "", - "concise_value": "5.034 116 567... x 1024", - "concise_unit": "m-1" - }, - { - "name": "joule-kelvin relationship", - "id": "joule-kelvin_relationship", - "url": "https://physics.nist.gov/cgi-bin/cuu/Value?jk|search_for=all!", - "symbol": "joule-kelvin_relationship", - "value": "7.242 970 516... x 1022", - "unit": "K Standard uncertainty", - "uncertainty": "", - "concise_value": "7.242 970 516... x 1022", - "concise_unit": "K Click here for correlation coefficient of this constant with other constants" - }, - { - "name": "joule-kilogram relationship", - "id": "joule-kilogram_relationship", - "url": "https://physics.nist.gov/cgi-bin/cuu/Value?jkg|search_for=all!", - "symbol": "joule-kilogram_relationship", - "value": "1.112 650 056... x 10-17", - "unit": "kg Standard uncertainty", - "uncertainty": "", - "concise_value": "1.112 650 056... x 10-17", - "concise_unit": "kg Click here for correlation coefficient of this constant with other constants" - }, - { - "name": "kelvin-atomic mass unit relationship", - "id": "kelvin-atomic_mass_unit_relationship", - "url": "https://physics.nist.gov/cgi-bin/cuu/Value?ku|search_for=all!", - "symbol": "kelvin-atomic_mass_unit_relationship", - "value": "9.251 087 2884 x 10-14", - "unit": "u Standard uncertainty 0", - "uncertainty": "", - "concise_value": "9.251 087 2884" - }, - { - "name": "kelvin-electron volt relationship", - "id": "kelvin-electron_volt_relationship", - "url": "https://physics.nist.gov/cgi-bin/cuu/Value?Rkev|search_for=all!", - "symbol": "kelvin-electron_volt_relationship", - "value": "8.617 333 262... x 10-5", - "unit": "eV Standard uncertainty", - "uncertainty": "", - "concise_value": "8.617 333 262... x 10-5", - "concise_unit": "eV Click here for correlation coefficient of this constant with other constants" - }, - { - "name": "kelvin-hartree relationship", - "id": "kelvin-hartree_relationship", - "url": "https://physics.nist.gov/cgi-bin/cuu/Value?khr|search_for=all!", - "symbol": "kelvin-hartree_relationship", - "value": "3.166 811 563 4564 x 10-6", - "unit": "Eh Standard uncertainty 0", - "uncertainty": "", - "concise_value": "3.166 811 563 4564" - }, - { - "name": "kelvin-hertz relationship", - "id": "kelvin-hertz_relationship", - "url": "https://physics.nist.gov/cgi-bin/cuu/Value?khz|search_for=all!", - "symbol": "kelvin-hertz_relationship", - "value": "2.083 661 912... x 1010", - "unit": "Hz Standard uncertainty", - "uncertainty": "", - "concise_value": "2.083 661 912... x 1010", - "concise_unit": "Hz Click here for correlation coefficient of this constant with other constants" - }, - { - "name": "kelvin-inverse meter relationship", - "id": "kelvin-inverse_meter_relationship", - "url": "https://physics.nist.gov/cgi-bin/cuu/Value?kminv|search_for=all!", - "symbol": "kelvin-inverse_meter_relationship", - "value": "69.503 480 04...", - "unit": "m-1 Standard uncertainty", - "uncertainty": "", - "concise_value": "69.503 480 04...", - "concise_unit": "m-1" - }, - { - "name": "kelvin-joule relationship", - "id": "kelvin-joule_relationship", - "url": "https://physics.nist.gov/cgi-bin/cuu/Value?kj|search_for=all!", - "symbol": "kelvin-joule_relationship", - "value": "1.380 649 x 10-23", - "unit": "J Standard uncertainty", - "uncertainty": "", - "concise_value": "1.380 649 x 10-23", - "concise_unit": "J Click here for correlation coefficient of this constant with other constants" - }, - { - "name": "kelvin-kilogram relationship", - "id": "kelvin-kilogram_relationship", - "url": "https://physics.nist.gov/cgi-bin/cuu/Value?kkg|search_for=all!", - "symbol": "kelvin-kilogram_relationship", - "value": "1.536 179 187... x 10-40", - "unit": "kg Standard uncertainty", - "uncertainty": "", - "concise_value": "1.536 179 187... x 10-40", - "concise_unit": "kg Click here for correlation coefficient of this constant with other constants" - }, - { - "name": "kilogram-atomic mass unit relationship", - "id": "kilogram-atomic_mass_unit_relationship", - "url": "https://physics.nist.gov/cgi-bin/cuu/Value?kgu|search_for=all!", - "symbol": "kilogram-atomic_mass_unit_relationship", - "value": "6.022 140 7537 x 1026", - "unit": "u Standard uncertainty 0", - "uncertainty": "", - "concise_value": "6.022 140 7537" - }, - { - "name": "kilogram-electron volt relationship", - "id": "kilogram-electron_volt_relationship", - "url": "https://physics.nist.gov/cgi-bin/cuu/Value?kgev|search_for=all!", - "symbol": "kilogram-electron_volt_relationship", - "value": "5.609 588 603... x 1035", - "unit": "eV Standard uncertainty", - "uncertainty": "", - "concise_value": "5.609 588 603... x 1035", - "concise_unit": "eV Click here for correlation coefficient of this constant with other constants" - }, - { - "name": "kilogram-hartree relationship", - "id": "kilogram-hartree_relationship", - "url": "https://physics.nist.gov/cgi-bin/cuu/Value?kghr|search_for=all!", - "symbol": "kilogram-hartree_relationship", - "value": "2.061 485 788 7415 x 1034", - "unit": "Eh Standard uncertainty 0", - "uncertainty": "", - "concise_value": "2.061 485 788 7415" - }, - { - "name": "kilogram-hertz relationship", - "id": "kilogram-hertz_relationship", - "url": "https://physics.nist.gov/cgi-bin/cuu/Value?kghz|search_for=all!", - "symbol": "kilogram-hertz_relationship", - "value": "1.356 392 489... x 1050", - "unit": "Hz Standard uncertainty", - "uncertainty": "", - "concise_value": "1.356 392 489... x 1050", - "concise_unit": "Hz Click here for correlation coefficient of this constant with other constants" - }, - { - "name": "kilogram-inverse meter relationship", - "id": "kilogram-inverse_meter_relationship", - "url": "https://physics.nist.gov/cgi-bin/cuu/Value?kgminv|search_for=all!", - "symbol": "kilogram-inverse_meter_relationship", - "value": "4.524 438 335... x 1041", - "unit": "m-1 Standard uncertainty", - "uncertainty": "", - "concise_value": "4.524 438 335... x 1041", - "concise_unit": "m-1" - }, - { - "name": "kilogram-joule relationship", - "id": "kilogram-joule_relationship", - "url": "https://physics.nist.gov/cgi-bin/cuu/Value?kgj|search_for=all!", - "symbol": "kilogram-joule_relationship", - "value": "8.987 551 787... x 1016", - "unit": "J Standard uncertainty", - "uncertainty": "", - "concise_value": "8.987 551 787... x 1016", - "concise_unit": "J Click here for correlation coefficient of this constant with other constants" - }, - { - "name": "kilogram-kelvin relationship", - "id": "kilogram-kelvin_relationship", - "url": "https://physics.nist.gov/cgi-bin/cuu/Value?kgk|search_for=all!", - "symbol": "kilogram-kelvin_relationship", - "value": "6.509 657 260... x 1039", - "unit": "K Standard uncertainty", - "uncertainty": "", - "concise_value": "6.509 657 260... x 1039", - "concise_unit": "K Click here for correlation coefficient of this constant with other constants" - }, - { - "name": "lattice parameter of silicon", - "id": "lattice_parameter_of_silicon", - "url": "https://physics.nist.gov/cgi-bin/cuu/Value?asil|search_for=all!", - "symbol": "lattice_parameter_of_silicon", - "value": "5.431 020 511 x 10-10", - "unit": "m Standard uncertainty 0", - "uncertainty": "", - "concise_value": "5.431 020 511" - }, - { - "name": "lattice spacing of ideal Si (220)", - "id": "lattice_spacing_of_ideal_si_(220)", - "url": "https://physics.nist.gov/cgi-bin/cuu/Value?d220sil|search_for=all!", - "symbol": "lattice_spacing_of_ideal_si_(220)", - "value": "1.920 155 716 x 10-10", - "unit": "m Standard uncertainty 0", - "uncertainty": "", - "concise_value": "1.920 155 716" - }, - { - "name": "Loschmidt constant (273.15 K, 100 kPa)", - "id": "loschmidt_constant_(273.15_k,_100_kpa)", - "url": "https://physics.nist.gov/cgi-bin/cuu/Value?n0|search_for=all!", - "symbol": "loschmidt_constant_(273.15_k,_100_kpa)", - "value": "2.651 645 804... x 1025", - "unit": "m-3 Standard uncertainty", - "uncertainty": "", - "concise_value": "2.651 645 804... x 1025", - "concise_unit": "m-3 Click here for correlation coefficient of this constant with other constants" - }, - { - "name": "Loschmidt constant (273.15 K, 101.325 kPa)", - "id": "loschmidt_constant_(273.15_k,_101.325_kpa)", - "url": "https://physics.nist.gov/cgi-bin/cuu/Value?n0std|search_for=all!", - "symbol": "loschmidt_constant_(273.15_k,_101.325_kpa)", - "value": "2.686 780 111... x 1025", - "unit": "m-3 Standard uncertainty", - "uncertainty": "", - "concise_value": "2.686 780 111... x 1025", - "concise_unit": "m-3 Click here for correlation coefficient of this constant with other constants" - }, - { - "name": "luminous efficacy", - "id": "luminous_efficacy", - "url": "https://physics.nist.gov/cgi-bin/cuu/Value?kcd|search_for=all!", - "symbol": "luminous_efficacy", - "value": "683", - "unit": "lm W-1 Standard uncertainty", - "uncertainty": "", - "concise_value": "683", - "concise_unit": "lm W-1 Click here for correlation coefficient of this constant with other constants" - }, - { - "name": "magnetic flux quantum", - "id": "magnetic_flux_quantum", - "url": "https://physics.nist.gov/cgi-bin/cuu/Value?flxquhs2e|search_for=all!", - "symbol": "magnetic_flux_quantum", - "value": "2.067 833 848... x 10-15", - "unit": "Wb Standard uncertainty", - "uncertainty": "", - "concise_value": "2.067 833 848... x 10-15", - "concise_unit": "Wb Click here for correlation coefficient of this constant with other constants" - }, - { - "name": "molar gas constant", - "id": "molar_gas_constant", - "url": "https://physics.nist.gov/cgi-bin/cuu/Value?r|search_for=all!", - "symbol": "molar_gas_constant", - "value": "8.314 462 618...", - "unit": "J mol-1 K-1 Standard uncertainty", - "uncertainty": "", - "concise_value": "8.314 462 618...", - "concise_unit": "J mol-1 K-1 Click here for correlation coefficient of this constant with other constants" - }, - { - "name": "molar mass constant", - "id": "molar_mass_constant", - "url": "https://physics.nist.gov/cgi-bin/cuu/Value?mu|search_for=all!", - "symbol": "molar_mass_constant", - "value": "1.000 000 001 05 x 10-3", - "unit": "kg mol-1 Standard uncertainty 0", - "uncertainty": "", - "concise_value": "1.000 000 001 05" - }, - { - "name": "molar mass of carbon-12", - "id": "molar_mass_of_carbon-12", - "url": "https://physics.nist.gov/cgi-bin/cuu/Value?mm12c|search_for=all!", - "symbol": "molar_mass_of_carbon-12", - "value": "12.000 000 0126 x 10-3", - "unit": "kg mol-1 Standard uncertainty 0", - "uncertainty": "", - "concise_value": "12.000 000 0126" - }, - { - "name": "molar Planck constant", - "id": "molar_planck_constant", - "url": "https://physics.nist.gov/cgi-bin/cuu/Value?nah|search_for=all!", - "symbol": "molar_planck_constant", - "value": "3.990 312 712... x 10-10", - "unit": "J Hz-1 mol-1 Standard uncertainty", - "uncertainty": "", - "concise_value": "3.990 312 712... x 10-10", - "concise_unit": "J Hz-1 mol-1 Click here for correlation coefficient of this constant with other constants" - }, - { - "name": "molar volume of ideal gas (273.15 K, 100 kPa)", - "id": "molar_volume_of_ideal_gas_(273.15_k,_100_kpa)", - "url": "https://physics.nist.gov/cgi-bin/cuu/Value?mvol|search_for=all!", - "symbol": "molar_volume_of_ideal_gas_(273.15_k,_100_kpa)", - "value": "22.710 954 64... x 10-3", - "unit": "m3 mol-1 Standard uncertainty", - "uncertainty": "", - "concise_value": "22.710 954 64... x 10-3", - "concise_unit": "m3 mol-1 Click here for correlation coefficient of this constant with other constants" - }, - { - "name": "molar volume of ideal gas (273.15 K, 101.325 kPa)", - "id": "molar_volume_of_ideal_gas_(273.15_k,_101.325_kpa)", - "url": "https://physics.nist.gov/cgi-bin/cuu/Value?mvolstd|search_for=all!", - "symbol": "molar_volume_of_ideal_gas_(273.15_k,_101.325_kpa)", - "value": "22.413 969 54... x 10-3", - "unit": "m3 mol-1 Standard uncertainty", - "uncertainty": "", - "concise_value": "22.413 969 54... x 10-3", - "concise_unit": "m3 mol-1 Click here for correlation coefficient of this constant with other constants" - }, - { - "name": "molar volume of silicon", - "id": "molar_volume_of_silicon", - "url": "https://physics.nist.gov/cgi-bin/cuu/Value?mvolsil|search_for=all!", - "symbol": "molar_volume_of_silicon", - "value": "1.205 883 199 x 10-5", - "unit": "m3 mol-1 Standard uncertainty 0", - "uncertainty": "", - "concise_value": "1.205 883 199" - }, - { - "name": "Molybdenum x unit", - "id": "molybdenum_x_unit", - "url": "https://physics.nist.gov/cgi-bin/cuu/Value?xumokalph1|search_for=all!", - "symbol": "molybdenum_x_unit", - "value": "1.002 099 52 x 10-13", - "unit": "m Standard uncertainty 0", - "uncertainty": "", - "concise_value": "1.002 099 52" - }, - { - "name": "muon Compton wavelength", - "id": "muon_compton_wavelength", - "url": "https://physics.nist.gov/cgi-bin/cuu/Value?mcomwl|search_for=all!", - "symbol": "muon_compton_wavelength", - "value": "1.173 444 110 x 10-14", - "unit": "m Standard uncertainty 0", - "uncertainty": "", - "concise_value": "1.173 444 110" - }, - { - "name": "muon g factor", - "id": "muon_g_factor", - "url": "https://physics.nist.gov/cgi-bin/cuu/Value?gmum|search_for=all!", - "symbol": "muon_g_factor", - "value": "-2.002 331 841 23", - "unit": "Standard uncertainty 0", - "uncertainty": "", - "concise_value": "-2.002 331 841 23" - }, - { - "name": "muon magnetic moment", - "id": "muon_magnetic_moment", - "url": "https://physics.nist.gov/cgi-bin/cuu/Value?mumum|search_for=all!", - "symbol": "muon_magnetic_moment", - "value": "-4.490 448 30 x 10-26", - "unit": "J T-1 Standard uncertainty 0", - "uncertainty": "", - "concise_value": "-4.490 448 30" - }, - { - "name": "muon magnetic moment anomaly", - "id": "muon_magnetic_moment_anomaly", - "url": "https://physics.nist.gov/cgi-bin/cuu/Value?amu|search_for=all!", - "symbol": "muon_magnetic_moment_anomaly", - "value": "1.165 920 62 x 10-3", - "unit": "Standard uncertainty 0", - "uncertainty": "", - "concise_value": "1.165 920 62" - }, - { - "name": "muon magnetic moment to Bohr magneton ratio", - "id": "muon_magnetic_moment_to_bohr_magneton_ratio", - "url": "https://physics.nist.gov/cgi-bin/cuu/Value?mumumsmub|search_for=all!", - "symbol": "muon_magnetic_moment_to_bohr_magneton_ratio", - "value": "-4.841 970 48 x 10-3", - "unit": "Standard uncertainty 0", - "uncertainty": "", - "concise_value": "-4.841 970 48" - }, - { - "name": "muon magnetic moment to nuclear magneton ratio", - "id": "muon_magnetic_moment_to_nuclear_magneton_ratio", - "url": "https://physics.nist.gov/cgi-bin/cuu/Value?mumumsmun|search_for=all!", - "symbol": "muon_magnetic_moment_to_nuclear_magneton_ratio", - "value": "-8.890 597 04", - "unit": "Standard uncertainty 0", - "uncertainty": "", - "concise_value": "-8.890 597 04" - }, - { - "name": "muon mass", - "id": "muon_mass", - "url": "https://physics.nist.gov/cgi-bin/cuu/Value?mmu|search_for=all!", - "symbol": "muon_mass", - "value": "1.883 531 627 x 10-28", - "unit": "kg Standard uncertainty 0", - "uncertainty": "", - "concise_value": "1.883 531 627" - }, - { - "name": "muon mass energy equivalent", - "id": "muon_mass_energy_equivalent", - "url": "https://physics.nist.gov/cgi-bin/cuu/Value?mmuc2|search_for=all!", - "symbol": "muon_mass_energy_equivalent", - "value": "1.692 833 804 x 10-11", - "unit": "J Standard uncertainty 0", - "uncertainty": "", - "concise_value": "1.692 833 804" - }, - { - "name": "muon mass energy equivalent in MeV", - "id": "muon_mass_energy_equivalent_in_mev", - "url": "https://physics.nist.gov/cgi-bin/cuu/Value?mmuc2mev|search_for=all!", - "symbol": "muon_mass_energy_equivalent_in_mev", - "value": "105.658 3755", - "unit": "MeV Standard uncertainty 0", - "uncertainty": "", - "concise_value": "105.658 3755" - }, - { - "name": "muon mass in u", - "id": "muon_mass_in_u", - "url": "https://physics.nist.gov/cgi-bin/cuu/Value?mmuu|search_for=all!", - "symbol": "muon_mass_in_u", - "value": "0.113 428 9257", - "unit": "u Standard uncertainty 0", - "uncertainty": "", - "concise_value": "0.113 428 9257" - }, - { - "name": "muon molar mass", - "id": "muon_molar_mass", - "url": "https://physics.nist.gov/cgi-bin/cuu/Value?mmmu|search_for=all!", - "symbol": "muon_molar_mass", - "value": "1.134 289 258 x 10-4", - "unit": "kg mol-1 Standard uncertainty 0", - "uncertainty": "", - "concise_value": "1.134 289 258" - }, - { - "name": "muon-electron mass ratio", - "id": "muon-electron_mass_ratio", - "url": "https://physics.nist.gov/cgi-bin/cuu/Value?mmusme|search_for=all!", - "symbol": "muon-electron_mass_ratio", - "value": "206.768 2827", - "unit": "Standard uncertainty 0", - "uncertainty": "", - "concise_value": "206.768 2827" - }, - { - "name": "muon-neutron mass ratio", - "id": "muon-neutron_mass_ratio", - "url": "https://physics.nist.gov/cgi-bin/cuu/Value?mmusmn|search_for=all!", - "symbol": "muon-neutron_mass_ratio", - "value": "0.112 454 5168", - "unit": "Standard uncertainty 0", - "uncertainty": "", - "concise_value": "0.112 454 5168" - }, - { - "name": "muon-proton magnetic moment ratio", - "id": "muon-proton_magnetic_moment_ratio", - "url": "https://physics.nist.gov/cgi-bin/cuu/Value?mumumsmup|search_for=all!", - "symbol": "muon-proton_magnetic_moment_ratio", - "value": "-3.183 345 146", - "unit": "Standard uncertainty 0", - "uncertainty": "", - "concise_value": "-3.183 345 146" - }, - { - "name": "muon-proton mass ratio", - "id": "muon-proton_mass_ratio", - "url": "https://physics.nist.gov/cgi-bin/cuu/Value?mmusmp|search_for=all!", - "symbol": "muon-proton_mass_ratio", - "value": "0.112 609 5262", - "unit": "Standard uncertainty 0", - "uncertainty": "", - "concise_value": "0.112 609 5262" - }, - { - "name": "muon-tau mass ratio", - "id": "muon-tau_mass_ratio", - "url": "https://physics.nist.gov/cgi-bin/cuu/Value?mmusmtau|search_for=all!", - "symbol": "muon-tau_mass_ratio", - "value": "5.946 35 x 10-2", - "unit": "Standard uncertainty 0", - "uncertainty": "", - "concise_value": "5.946 35" - }, - { - "name": "natural unit of action", - "id": "natural_unit_of_action", - "url": "https://physics.nist.gov/cgi-bin/cuu/Value?Nhbar|search_for=all!", - "symbol": "natural_unit_of_action", - "value": "1.054 571 817... x 10-34", - "unit": "J s Standard uncertainty", - "uncertainty": "", - "concise_value": "1.054 571 817... x 10-34", - "concise_unit": "J s Click here for correlation coefficient of this constant with other constants" - }, - { - "name": "natural unit of action in eV s", - "id": "natural_unit_of_action_in_ev_s", - "url": "https://physics.nist.gov/cgi-bin/cuu/Value?Nhbarev|search_for=all!", - "symbol": "natural_unit_of_action_in_ev_s", - "value": "6.582 119 569... x 10-16", - "unit": "eV s Standard uncertainty", - "uncertainty": "", - "concise_value": "6.582 119 569... x 10-16", - "concise_unit": "eV s Click here for correlation coefficient of this constant with other constants" - }, - { - "name": "natural unit of energy", - "id": "natural_unit_of_energy", - "url": "https://physics.nist.gov/cgi-bin/cuu/Value?Nmec2|search_for=all!", - "symbol": "natural_unit_of_energy", - "value": "8.187 105 7880 x 10-14", - "unit": "J Standard uncertainty 0", - "uncertainty": "", - "concise_value": "8.187 105 7880" - }, - { - "name": "natural unit of energy in MeV", - "id": "natural_unit_of_energy_in_mev", - "url": "https://physics.nist.gov/cgi-bin/cuu/Value?Nmec2mev|search_for=all!", - "symbol": "natural_unit_of_energy_in_mev", - "value": "0.510 998 950 69", - "unit": "MeV Standard uncertainty 0", - "uncertainty": "", - "concise_value": "0.510 998 950 69" - }, - { - "name": "natural unit of length", - "id": "natural_unit_of_length", - "url": "https://physics.nist.gov/cgi-bin/cuu/Value?Necomwlbar|search_for=all!", - "symbol": "natural_unit_of_length", - "value": "3.861 592 6744 x 10-13", - "unit": "m Standard uncertainty 0", - "uncertainty": "", - "concise_value": "3.861 592 6744" - }, - { - "name": "natural unit of mass", - "id": "natural_unit_of_mass", - "url": "https://physics.nist.gov/cgi-bin/cuu/Value?Nme|search_for=all!", - "symbol": "natural_unit_of_mass", - "value": "9.109 383 7139 x 10-31", - "unit": "kg Standard uncertainty 0", - "uncertainty": "", - "concise_value": "9.109 383 7139" - }, - { - "name": "natural unit of momentum", - "id": "natural_unit_of_momentum", - "url": "https://physics.nist.gov/cgi-bin/cuu/Value?mec|search_for=all!", - "symbol": "natural_unit_of_momentum", - "value": "2.730 924 534 46 x 10-22", - "unit": "kg m s-1 Standard uncertainty 0", - "uncertainty": "", - "concise_value": "2.730 924 534 46" - }, - { - "name": "natural unit of momentum in MeV/c", - "id": "natural_unit_of_momentum_in_mev/c", - "url": "https://physics.nist.gov/cgi-bin/cuu/Value?mecmevsc|search_for=all!", - "symbol": "natural_unit_of_momentum_in_mev/c", - "value": "0.510 998 950 69", - "unit": "MeV/c Standard uncertainty 0", - "uncertainty": "", - "concise_value": "0.510 998 950 69" - }, - { - "name": "natural unit of time", - "id": "natural_unit_of_time", - "url": "https://physics.nist.gov/cgi-bin/cuu/Value?nut|search_for=all!", - "symbol": "natural_unit_of_time", - "value": "1.288 088 666 44 x 10-21", - "unit": "s Standard uncertainty 0", - "uncertainty": "", - "concise_value": "1.288 088 666 44" - }, - { - "name": "natural unit of velocity", - "id": "natural_unit_of_velocity", - "url": "https://physics.nist.gov/cgi-bin/cuu/Value?Nc|search_for=all!", - "symbol": "natural_unit_of_velocity", - "value": "299 792 458", - "unit": "m s-1 Standard uncertainty", - "uncertainty": "", - "concise_value": "299 792 458", - "concise_unit": "m s-1 Click here for correlation coefficient of this constant with other constants" - }, - { - "name": "neutron Compton wavelength", - "id": "neutron_compton_wavelength", - "url": "https://physics.nist.gov/cgi-bin/cuu/Value?ncomwl|search_for=all!", - "symbol": "neutron_compton_wavelength", - "value": "1.319 590 903 82 x 10-15", - "unit": "m Standard uncertainty 0", - "uncertainty": "", - "concise_value": "1.319 590 903 82" - }, - { - "name": "neutron g factor", - "id": "neutron_g_factor", - "url": "https://physics.nist.gov/cgi-bin/cuu/Value?gnn|search_for=all!", - "symbol": "neutron_g_factor", - "value": "-3.826 085 52", - "unit": "Standard uncertainty 0", - "uncertainty": "", - "concise_value": "-3.826 085 52" - }, - { - "name": "neutron gyromagnetic ratio", - "id": "neutron_gyromagnetic_ratio", - "url": "https://physics.nist.gov/cgi-bin/cuu/Value?gamman|search_for=all!", - "symbol": "neutron_gyromagnetic_ratio", - "value": "1.832 471 74 x 108", - "unit": "s-1 T-1 Standard uncertainty 0", - "uncertainty": "", - "concise_value": "1.832 471 74" - }, - { - "name": "neutron gyromagnetic ratio in MHz/T", - "id": "neutron_gyromagnetic_ratio_in_mhz/t", - "url": "https://physics.nist.gov/cgi-bin/cuu/Value?gammanbar|search_for=all!", - "symbol": "neutron_gyromagnetic_ratio_in_mhz/t", - "value": "29.164 6935", - "unit": "MHz T-1 Standard uncertainty 0", - "uncertainty": "", - "concise_value": "29.164 6935" - }, - { - "name": "neutron magnetic moment", - "id": "neutron_magnetic_moment", - "url": "https://physics.nist.gov/cgi-bin/cuu/Value?munn|search_for=all!", - "symbol": "neutron_magnetic_moment", - "value": "-9.662 3653 x 10-27", - "unit": "J T-1 Standard uncertainty 0", - "uncertainty": "", - "concise_value": "-9.662 3653" - }, - { - "name": "neutron magnetic moment to Bohr magneton ratio", - "id": "neutron_magnetic_moment_to_bohr_magneton_ratio", - "url": "https://physics.nist.gov/cgi-bin/cuu/Value?munsmub|search_for=all!", - "symbol": "neutron_magnetic_moment_to_bohr_magneton_ratio", - "value": "-1.041 875 65 x 10-3", - "unit": "Standard uncertainty 0", - "uncertainty": "", - "concise_value": "-1.041 875 65" - }, - { - "name": "neutron magnetic moment to nuclear magneton ratio", - "id": "neutron_magnetic_moment_to_nuclear_magneton_ratio", - "url": "https://physics.nist.gov/cgi-bin/cuu/Value?munsmun|search_for=all!", - "symbol": "neutron_magnetic_moment_to_nuclear_magneton_ratio", - "value": "-1.913 042 76", - "unit": "Standard uncertainty 0", - "uncertainty": "", - "concise_value": "-1.913 042 76" - }, - { - "name": "neutron mass", - "id": "neutron_mass", - "url": "https://physics.nist.gov/cgi-bin/cuu/Value?mn|search_for=all!", - "symbol": "neutron_mass", - "value": "1.674 927 500 56 x 10-27", - "unit": "kg Standard uncertainty 0", - "uncertainty": "", - "concise_value": "1.674 927 500 56" - }, - { - "name": "neutron mass energy equivalent", - "id": "neutron_mass_energy_equivalent", - "url": "https://physics.nist.gov/cgi-bin/cuu/Value?mnc2|search_for=all!", - "symbol": "neutron_mass_energy_equivalent", - "value": "1.505 349 765 14 x 10-10", - "unit": "J Standard uncertainty 0", - "uncertainty": "", - "concise_value": "1.505 349 765 14" - }, - { - "name": "neutron mass energy equivalent in MeV", - "id": "neutron_mass_energy_equivalent_in_mev", - "url": "https://physics.nist.gov/cgi-bin/cuu/Value?mnc2mev|search_for=all!", - "symbol": "neutron_mass_energy_equivalent_in_mev", - "value": "939.565 421 94", - "unit": "MeV Standard uncertainty 0", - "uncertainty": "", - "concise_value": "939.565 421 94" - }, - { - "name": "neutron mass in u", - "id": "neutron_mass_in_u", - "url": "https://physics.nist.gov/cgi-bin/cuu/Value?mnu|search_for=all!", - "symbol": "neutron_mass_in_u", - "value": "1.008 664 916 06", - "unit": "u Standard uncertainty 0", - "uncertainty": "", - "concise_value": "1.008 664 916 06" - }, - { - "name": "neutron molar mass", - "id": "neutron_molar_mass", - "url": "https://physics.nist.gov/cgi-bin/cuu/Value?mmn|search_for=all!", - "symbol": "neutron_molar_mass", - "value": "1.008 664 917 12 x 10-3", - "unit": "kg mol-1 Standard uncertainty 0", - "uncertainty": "", - "concise_value": "1.008 664 917 12" - }, - { - "name": "neutron relative atomic mass", - "id": "neutron_relative_atomic_mass", - "url": "https://physics.nist.gov/cgi-bin/cuu/Value?arn|search_for=all!", - "symbol": "neutron_relative_atomic_mass", - "value": "1.008 664 916 06", - "unit": "Standard uncertainty 0", - "uncertainty": "", - "concise_value": "1.008 664 916 06" - }, - { - "name": "neutron to shielded proton magnetic moment ratio", - "id": "neutron_to_shielded_proton_magnetic_moment_ratio", - "url": "https://physics.nist.gov/cgi-bin/cuu/Value?munsmupp|search_for=all!", - "symbol": "neutron_to_shielded_proton_magnetic_moment_ratio", - "value": "-0.684 996 94", - "unit": "Standard uncertainty 0", - "uncertainty": "", - "concise_value": "-0.684 996 94" - }, - { - "name": "neutron-electron magnetic moment ratio", - "id": "neutron-electron_magnetic_moment_ratio", - "url": "https://physics.nist.gov/cgi-bin/cuu/Value?munsmue|search_for=all!", - "symbol": "neutron-electron_magnetic_moment_ratio", - "value": "1.040 668 84 x 10-3", - "unit": "Standard uncertainty 0", - "uncertainty": "", - "concise_value": "1.040 668 84" - }, - { - "name": "neutron-electron mass ratio", - "id": "neutron-electron_mass_ratio", - "url": "https://physics.nist.gov/cgi-bin/cuu/Value?mnsme|search_for=all!", - "symbol": "neutron-electron_mass_ratio", - "value": "1838.683 662 00", - "unit": "Standard uncertainty 0", - "uncertainty": "", - "concise_value": "1838.683 662 00" - }, - { - "name": "neutron-muon mass ratio", - "id": "neutron-muon_mass_ratio", - "url": "https://physics.nist.gov/cgi-bin/cuu/Value?mnsmmu|search_for=all!", - "symbol": "neutron-muon_mass_ratio", - "value": "8.892 484 08", - "unit": "Standard uncertainty 0", - "uncertainty": "", - "concise_value": "8.892 484 08" - }, - { - "name": "neutron-proton magnetic moment ratio", - "id": "neutron-proton_magnetic_moment_ratio", - "url": "https://physics.nist.gov/cgi-bin/cuu/Value?munsmup|search_for=all!", - "symbol": "neutron-proton_magnetic_moment_ratio", - "value": "-0.684 979 35", - "unit": "Standard uncertainty 0", - "uncertainty": "", - "concise_value": "-0.684 979 35" - }, - { - "name": "neutron-proton mass difference", - "id": "neutron-proton_mass_difference", - "url": "https://physics.nist.gov/cgi-bin/cuu/Value?mnmmp|search_for=all!", - "symbol": "neutron-proton_mass_difference", - "value": "2.305 574 61 x 10-30", - "unit": "kg Standard uncertainty 0", - "uncertainty": "", - "concise_value": "2.305 574 61" - }, - { - "name": "neutron-proton mass difference energy equivalent", - "id": "neutron-proton_mass_difference_energy_equivalent", - "url": "https://physics.nist.gov/cgi-bin/cuu/Value?mnmmpc2|search_for=all!", - "symbol": "neutron-proton_mass_difference_energy_equivalent", - "value": "2.072 147 12 x 10-13", - "unit": "J Standard uncertainty 0", - "uncertainty": "", - "concise_value": "2.072 147 12" - }, - { - "name": "neutron-proton mass difference energy equivalent in MeV", - "id": "neutron-proton_mass_difference_energy_equivalent_in_mev", - "url": "https://physics.nist.gov/cgi-bin/cuu/Value?mnmmpc2mev|search_for=all!", - "symbol": "neutron-proton_mass_difference_energy_equivalent_in_mev", - "value": "1.293 332 51", - "unit": "MeV Standard uncertainty 0", - "uncertainty": "", - "concise_value": "1.293 332 51" - }, - { - "name": "neutron-proton mass difference in u", - "id": "neutron-proton_mass_difference_in_u", - "url": "https://physics.nist.gov/cgi-bin/cuu/Value?mnmmpu|search_for=all!", - "symbol": "neutron-proton_mass_difference_in_u", - "value": "1.388 449 48 x 10-3", - "unit": "u Standard uncertainty 0", - "uncertainty": "", - "concise_value": "1.388 449 48" - }, - { - "name": "neutron-proton mass ratio", - "id": "neutron-proton_mass_ratio", - "url": "https://physics.nist.gov/cgi-bin/cuu/Value?mnsmp|search_for=all!", - "symbol": "neutron-proton_mass_ratio", - "value": "1.001 378 419 46", - "unit": "Standard uncertainty 0", - "uncertainty": "", - "concise_value": "1.001 378 419 46" - }, - { - "name": "neutron-tau mass ratio", - "id": "neutron-tau_mass_ratio", - "url": "https://physics.nist.gov/cgi-bin/cuu/Value?mnsmtau|search_for=all!", - "symbol": "neutron-tau_mass_ratio", - "value": "0.528 779", - "unit": "Standard uncertainty 0", - "uncertainty": "", - "concise_value": "0.528 779" - }, - { - "name": "Newtonian constant of gravitation", - "id": "newtonian_constant_of_gravitation", - "url": "https://physics.nist.gov/cgi-bin/cuu/Value?bg|search_for=all!", - "symbol": "newtonian_constant_of_gravitation", - "value": "6.674 30 x 10-11", - "unit": "m3 kg-1 s-2 Standard uncertainty 0", - "uncertainty": "", - "concise_value": "6.674 30" - }, - { - "name": "Newtonian constant of gravitation over h-bar c", - "id": "newtonian_constant_of_gravitation_over_h-bar_c", - "url": "https://physics.nist.gov/cgi-bin/cuu/Value?bgspu|search_for=all!", - "symbol": "newtonian_constant_of_gravitation_over_h-bar_c", - "value": "6.708 83 x 10-39", - "uncertainty": "", - "concise_value": "6.708 83" - }, - { - "name": "nuclear magneton", - "id": "nuclear_magneton", - "url": "https://physics.nist.gov/cgi-bin/cuu/Value?mun|search_for=all!", - "symbol": "nuclear_magneton", - "value": "5.050 783 7393 x 10-27", - "unit": "J T-1 Standard uncertainty 0", - "uncertainty": "", - "concise_value": "5.050 783 7393" - }, - { - "name": "nuclear magneton in eV/T", - "id": "nuclear_magneton_in_ev/t", - "url": "https://physics.nist.gov/cgi-bin/cuu/Value?munev|search_for=all!", - "symbol": "nuclear_magneton_in_ev/t", - "value": "3.152 451 254 17 x 10-8", - "unit": "eV T-1 Standard uncertainty 0", - "uncertainty": "", - "concise_value": "3.152 451 254 17" - }, - { - "name": "nuclear magneton in inverse meter per tesla", - "id": "nuclear_magneton_in_inverse_meter_per_tesla", - "url": "https://physics.nist.gov/cgi-bin/cuu/Value?munshcminv|search_for=all!", - "symbol": "nuclear_magneton_in_inverse_meter_per_tesla", - "value": "2.542 623 410 09 x 10-2", - "unit": "m-1 T-1 Standard uncertainty 0", - "uncertainty": "", - "concise_value": "2.542 623 410 09" - }, - { - "name": "nuclear magneton in K/T", - "id": "nuclear_magneton_in_k/t", - "url": "https://physics.nist.gov/cgi-bin/cuu/Value?munskk|search_for=all!", - "symbol": "nuclear_magneton_in_k/t", - "value": "3.658 267 7706 x 10-4", - "unit": "K T-1 Standard uncertainty 0", - "uncertainty": "", - "concise_value": "3.658 267 7706" - }, - { - "name": "nuclear magneton in MHz/T", - "id": "nuclear_magneton_in_mhz/t", - "url": "https://physics.nist.gov/cgi-bin/cuu/Value?munshhz|search_for=all!", - "symbol": "nuclear_magneton_in_mhz/t", - "value": "7.622 593 2188", - "unit": "MHz T-1 Standard uncertainty 0", - "uncertainty": "", - "concise_value": "7.622 593 2188" - }, - { - "name": "Planck constant", - "id": "planck_constant", - "url": "https://physics.nist.gov/cgi-bin/cuu/Value?h|search_for=all!", - "symbol": "planck_constant", - "value": "6.626 070 15 x 10-34", - "unit": "J Hz-1 Standard uncertainty", - "uncertainty": "", - "concise_value": "6.626 070 15 x 10-34", - "concise_unit": "J Hz-1 Click here for correlation coefficient of this constant with other constants" - }, - { - "name": "Planck constant in eV/Hz", - "id": "planck_constant_in_ev/hz", - "url": "https://physics.nist.gov/cgi-bin/cuu/Value?hev|search_for=all!", - "symbol": "planck_constant_in_ev/hz", - "value": "4.135 667 696... x 10-15", - "unit": "eV Hz-1 Standard uncertainty", - "uncertainty": "", - "concise_value": "4.135 667 696... x 10-15", - "concise_unit": "eV Hz-1 Click here for correlation coefficient of this constant with other constants" - }, - { - "name": "Planck length", - "id": "planck_length", - "url": "https://physics.nist.gov/cgi-bin/cuu/Value?plkl|search_for=all!", - "symbol": "planck_length", - "value": "1.616 255 x 10-35", - "unit": "m Standard uncertainty 0", - "uncertainty": "", - "concise_value": "1.616 255" - }, - { - "name": "Planck mass", - "id": "planck_mass", - "url": "https://physics.nist.gov/cgi-bin/cuu/Value?plkm|search_for=all!", - "symbol": "planck_mass", - "value": "2.176 434 x 10-8", - "unit": "kg Standard uncertainty 0", - "uncertainty": "", - "concise_value": "2.176 434" - }, - { - "name": "Planck mass energy equivalent in GeV", - "id": "planck_mass_energy_equivalent_in_gev", - "url": "https://physics.nist.gov/cgi-bin/cuu/Value?plkmc2gev|search_for=all!", - "symbol": "planck_mass_energy_equivalent_in_gev", - "value": "1.220 890 x 1019", - "unit": "GeV Standard uncertainty 0", - "uncertainty": "", - "concise_value": "1.220 890" - }, - { - "name": "Planck temperature", - "id": "planck_temperature", - "url": "https://physics.nist.gov/cgi-bin/cuu/Value?plktmp|search_for=all!", - "symbol": "planck_temperature", - "value": "1.416 784 x 1032", - "unit": "K Standard uncertainty 0", - "uncertainty": "", - "concise_value": "1.416 784" - }, - { - "name": "Planck time", - "id": "planck_time", - "url": "https://physics.nist.gov/cgi-bin/cuu/Value?plkt|search_for=all!", - "symbol": "planck_time", - "value": "5.391 247 x 10-44", - "unit": "s Standard uncertainty 0", - "uncertainty": "", - "concise_value": "5.391 247" - }, - { - "name": "proton charge to mass quotient", - "id": "proton_charge_to_mass_quotient", - "url": "https://physics.nist.gov/cgi-bin/cuu/Value?esmp|search_for=all!", - "symbol": "proton_charge_to_mass_quotient", - "value": "9.578 833 1430 x 107", - "unit": "C kg-1 Standard uncertainty 0", - "uncertainty": "", - "concise_value": "9.578 833 1430" - }, - { - "name": "proton Compton wavelength", - "id": "proton_compton_wavelength", - "url": "https://physics.nist.gov/cgi-bin/cuu/Value?pcomwl|search_for=all!", - "symbol": "proton_compton_wavelength", - "value": "1.321 409 853 60 x 10-15", - "unit": "m Standard uncertainty 0", - "uncertainty": "", - "concise_value": "1.321 409 853 60" - }, - { - "name": "proton g factor", - "id": "proton_g_factor", - "url": "https://physics.nist.gov/cgi-bin/cuu/Value?gp|search_for=all!", - "symbol": "proton_g_factor", - "value": "5.585 694 6893", - "unit": "Standard uncertainty 0", - "uncertainty": "", - "concise_value": "5.585 694 6893" - }, - { - "name": "proton gyromagnetic ratio", - "id": "proton_gyromagnetic_ratio", - "url": "https://physics.nist.gov/cgi-bin/cuu/Value?gammap|search_for=all!", - "symbol": "proton_gyromagnetic_ratio", - "value": "2.675 221 8708 x 108", - "unit": "s-1 T-1 Standard uncertainty 0", - "uncertainty": "", - "concise_value": "2.675 221 8708" - }, - { - "name": "proton gyromagnetic ratio in MHz/T", - "id": "proton_gyromagnetic_ratio_in_mhz/t", - "url": "https://physics.nist.gov/cgi-bin/cuu/Value?gammapbar|search_for=all!", - "symbol": "proton_gyromagnetic_ratio_in_mhz/t", - "value": "42.577 478 461", - "unit": "MHz T-1 Standard uncertainty 0", - "uncertainty": "", - "concise_value": "42.577 478 461" - }, - { - "name": "proton magnetic moment", - "id": "proton_magnetic_moment", - "url": "https://physics.nist.gov/cgi-bin/cuu/Value?mup|search_for=all!", - "symbol": "proton_magnetic_moment", - "value": "1.410 606 795 45 x 10-26", - "unit": "J T-1 Standard uncertainty 0", - "uncertainty": "", - "concise_value": "1.410 606 795 45" - }, - { - "name": "proton magnetic moment to Bohr magneton ratio", - "id": "proton_magnetic_moment_to_bohr_magneton_ratio", - "url": "https://physics.nist.gov/cgi-bin/cuu/Value?mupsmub|search_for=all!", - "symbol": "proton_magnetic_moment_to_bohr_magneton_ratio", - "value": "1.521 032 202 30 x 10-3", - "unit": "Standard uncertainty 0", - "uncertainty": "", - "concise_value": "1.521 032 202 30" - }, - { - "name": "proton magnetic moment to nuclear magneton ratio", - "id": "proton_magnetic_moment_to_nuclear_magneton_ratio", - "url": "https://physics.nist.gov/cgi-bin/cuu/Value?mupsmun|search_for=all!", - "symbol": "proton_magnetic_moment_to_nuclear_magneton_ratio", - "value": "2.792 847 344 63", - "unit": "Standard uncertainty 0", - "uncertainty": "", - "concise_value": "2.792 847 344 63" - }, - { - "name": "proton magnetic shielding correction", - "id": "proton_magnetic_shielding_correction", - "url": "https://physics.nist.gov/cgi-bin/cuu/Value?sigmapp|search_for=all!", - "symbol": "proton_magnetic_shielding_correction", - "value": "2.567 15 x 10-5", - "unit": "Standard uncertainty 0", - "uncertainty": "", - "concise_value": "2.567 15" - }, - { - "name": "proton mass", - "id": "proton_mass", - "url": "https://physics.nist.gov/cgi-bin/cuu/Value?mp|search_for=all!", - "symbol": "proton_mass", - "value": "1.672 621 925 95 x 10-27", - "unit": "kg Standard uncertainty 0", - "uncertainty": "", - "concise_value": "1.672 621 925 95" - }, - { - "name": "proton mass energy equivalent", - "id": "proton_mass_energy_equivalent", - "url": "https://physics.nist.gov/cgi-bin/cuu/Value?mpc2|search_for=all!", - "symbol": "proton_mass_energy_equivalent", - "value": "1.503 277 618 02 x 10-10", - "unit": "J Standard uncertainty 0", - "uncertainty": "", - "concise_value": "1.503 277 618 02" - }, - { - "name": "proton mass energy equivalent in MeV", - "id": "proton_mass_energy_equivalent_in_mev", - "url": "https://physics.nist.gov/cgi-bin/cuu/Value?mpc2mev|search_for=all!", - "symbol": "proton_mass_energy_equivalent_in_mev", - "value": "938.272 089 43", - "unit": "MeV Standard uncertainty 0", - "uncertainty": "", - "concise_value": "938.272 089 43" - }, - { - "name": "proton mass in u", - "id": "proton_mass_in_u", - "url": "https://physics.nist.gov/cgi-bin/cuu/Value?mpu|search_for=all!", - "symbol": "proton_mass_in_u", - "value": "1.007 276 466 5789", - "unit": "u Standard uncertainty 0", - "uncertainty": "", - "concise_value": "1.007 276 466 5789" - }, - { - "name": "proton molar mass", - "id": "proton_molar_mass", - "url": "https://physics.nist.gov/cgi-bin/cuu/Value?mmp|search_for=all!", - "symbol": "proton_molar_mass", - "value": "1.007 276 467 64 x 10-3", - "unit": "kg mol-1 Standard uncertainty 0", - "uncertainty": "", - "concise_value": "1.007 276 467 64" - }, - { - "name": "proton relative atomic mass", - "id": "proton_relative_atomic_mass", - "url": "https://physics.nist.gov/cgi-bin/cuu/Value?arp|search_for=all!", - "symbol": "proton_relative_atomic_mass", - "value": "1.007 276 466 5789", - "unit": "Standard uncertainty 0", - "uncertainty": "", - "concise_value": "1.007 276 466 5789" - }, - { - "name": "proton rms charge radius", - "id": "proton_rms_charge_radius", - "url": "https://physics.nist.gov/cgi-bin/cuu/Value?rp|search_for=all!", - "symbol": "proton_rms_charge_radius", - "value": "8.4075 x 10-16", - "unit": "m Standard uncertainty 0", - "uncertainty": "", - "concise_value": "8.4075" - }, - { - "name": "proton-electron mass ratio", - "id": "proton-electron_mass_ratio", - "url": "https://physics.nist.gov/cgi-bin/cuu/Value?mpsme|search_for=all!", - "symbol": "proton-electron_mass_ratio", - "value": "1836.152 673 426", - "unit": "Standard uncertainty 0", - "uncertainty": "", - "concise_value": "1836.152 673 426" - }, - { - "name": "proton-muon mass ratio", - "id": "proton-muon_mass_ratio", - "url": "https://physics.nist.gov/cgi-bin/cuu/Value?mpsmmu|search_for=all!", - "symbol": "proton-muon_mass_ratio", - "value": "8.880 243 38", - "unit": "Standard uncertainty 0", - "uncertainty": "", - "concise_value": "8.880 243 38" - }, - { - "name": "proton-neutron magnetic moment ratio", - "id": "proton-neutron_magnetic_moment_ratio", - "url": "https://physics.nist.gov/cgi-bin/cuu/Value?mupsmunn|search_for=all!", - "symbol": "proton-neutron_magnetic_moment_ratio", - "value": "-1.459 898 02", - "unit": "Standard uncertainty 0", - "uncertainty": "", - "concise_value": "-1.459 898 02" - }, - { - "name": "proton-neutron mass ratio", - "id": "proton-neutron_mass_ratio", - "url": "https://physics.nist.gov/cgi-bin/cuu/Value?mpsmn|search_for=all!", - "symbol": "proton-neutron_mass_ratio", - "value": "0.998 623 477 97", - "unit": "Standard uncertainty 0", - "uncertainty": "", - "concise_value": "0.998 623 477 97" - }, - { - "name": "proton-tau mass ratio", - "id": "proton-tau_mass_ratio", - "url": "https://physics.nist.gov/cgi-bin/cuu/Value?mpsmtau|search_for=all!", - "symbol": "proton-tau_mass_ratio", - "value": "0.528 051", - "unit": "Standard uncertainty 0", - "uncertainty": "", - "concise_value": "0.528 051" - }, - { - "name": "quantum of circulation", - "id": "quantum_of_circulation", - "url": "https://physics.nist.gov/cgi-bin/cuu/Value?qucirchs2me|search_for=all!", - "symbol": "quantum_of_circulation", - "value": "3.636 947 5467 x 10-4", - "unit": "m2 s-1 Standard uncertainty 0", - "uncertainty": "", - "concise_value": "3.636 947 5467" - }, - { - "name": "quantum of circulation times 2", - "id": "quantum_of_circulation_times_2", - "url": "https://physics.nist.gov/cgi-bin/cuu/Value?hsme|search_for=all!", - "symbol": "quantum_of_circulation_times_2", - "value": "7.273 895 0934 x 10-4", - "unit": "m2 s-1 Standard uncertainty 0", - "uncertainty": "", - "concise_value": "7.273 895 0934" - }, - { - "name": "reduced Compton wavelength", - "id": "reduced_compton_wavelength", - "url": "https://physics.nist.gov/cgi-bin/cuu/Value?ecomwlbar|search_for=all!", - "symbol": "reduced_compton_wavelength", - "value": "3.861 592 6744 x 10-13", - "unit": "m Standard uncertainty 0", - "uncertainty": "", - "concise_value": "3.861 592 6744" - }, - { - "name": "reduced muon Compton wavelength", - "id": "reduced_muon_compton_wavelength", - "url": "https://physics.nist.gov/cgi-bin/cuu/Value?mcomwlbar|search_for=all!", - "symbol": "reduced_muon_compton_wavelength", - "value": "1.867 594 306 x 10-15", - "unit": "m Standard uncertainty 0", - "uncertainty": "", - "concise_value": "1.867 594 306" - }, - { - "name": "reduced neutron Compton wavelength", - "id": "reduced_neutron_compton_wavelength", - "url": "https://physics.nist.gov/cgi-bin/cuu/Value?ncomwlbar|search_for=all!", - "symbol": "reduced_neutron_compton_wavelength", - "value": "2.100 194 1520 x 10-16", - "unit": "m Standard uncertainty 0", - "uncertainty": "", - "concise_value": "2.100 194 1520" - }, - { - "name": "reduced Planck constant", - "id": "reduced_planck_constant", - "url": "https://physics.nist.gov/cgi-bin/cuu/Value?hbar|search_for=all!", - "symbol": "reduced_planck_constant", - "value": "1.054 571 817... x 10-34", - "unit": "J s Standard uncertainty", - "uncertainty": "", - "concise_value": "1.054 571 817... x 10-34", - "concise_unit": "J s Click here for correlation coefficient of this constant with other constants" - }, - { - "name": "reduced Planck constant in eV s", - "id": "reduced_planck_constant_in_ev_s", - "url": "https://physics.nist.gov/cgi-bin/cuu/Value?hbarev|search_for=all!", - "symbol": "reduced_planck_constant_in_ev_s", - "value": "6.582 119 569... x 10-16", - "unit": "eV s Standard uncertainty", - "uncertainty": "", - "concise_value": "6.582 119 569... x 10-16", - "concise_unit": "eV s Click here for correlation coefficient of this constant with other constants" - }, - { - "name": "reduced Planck constant times c in MeV fm", - "id": "reduced_planck_constant_times_c_in_mev_fm", - "url": "https://physics.nist.gov/cgi-bin/cuu/Value?hbcmevf|search_for=all!", - "symbol": "reduced_planck_constant_times_c_in_mev_fm", - "value": "197.326 980 4...", - "unit": "MeV fm Standard uncertainty", - "uncertainty": "", - "concise_value": "197.326 980 4...", - "concise_unit": "MeV fm Click here for correlation coefficient of this constant with other constants" - }, - { - "name": "reduced proton Compton wavelength", - "id": "reduced_proton_compton_wavelength", - "url": "https://physics.nist.gov/cgi-bin/cuu/Value?pcomwlbar|search_for=all!", - "symbol": "reduced_proton_compton_wavelength", - "value": "2.103 089 100 51 x 10-16", - "unit": "m Standard uncertainty 0", - "uncertainty": "", - "concise_value": "2.103 089 100 51" - }, - { - "name": "reduced tau Compton wavelength", - "id": "reduced_tau_compton_wavelength", - "url": "https://physics.nist.gov/cgi-bin/cuu/Value?tcomwlbar|search_for=all!", - "symbol": "reduced_tau_compton_wavelength", - "value": "1.110 538 x 10-16", - "unit": "m Standard uncertainty 0", - "uncertainty": "", - "concise_value": "1.110 538" - }, - { - "name": "Rydberg constant", - "id": "rydberg_constant", - "url": "https://physics.nist.gov/cgi-bin/cuu/Value?ryd|search_for=all!", - "symbol": "rydberg_constant", - "value": "10 973 731.568 157", - "unit": "m-1 Standard uncertainty 0", - "uncertainty": "", - "concise_value": "10 973 731.568 157" - }, - { - "name": "Rydberg constant times c in Hz", - "id": "rydberg_constant_times_c_in_hz", - "url": "https://physics.nist.gov/cgi-bin/cuu/Value?rydchz|search_for=all!", - "symbol": "rydberg_constant_times_c_in_hz", - "value": "3.289 841 960 2500 x 1015", - "unit": "Hz Standard uncertainty 0", - "uncertainty": "", - "concise_value": "3.289 841 960 2500" - }, - { - "name": "Rydberg constant times hc in eV", - "id": "rydberg_constant_times_hc_in_ev", - "url": "https://physics.nist.gov/cgi-bin/cuu/Value?rydhcev|search_for=all!", - "symbol": "rydberg_constant_times_hc_in_ev", - "value": "13.605 693 122 990", - "unit": "eV Standard uncertainty 0", - "uncertainty": "", - "concise_value": "13.605 693 122 990" - }, - { - "name": "Rydberg constant times hc in J", - "id": "rydberg_constant_times_hc_in_j", - "url": "https://physics.nist.gov/cgi-bin/cuu/Value?rydhcj|search_for=all!", - "symbol": "rydberg_constant_times_hc_in_j", - "value": "2.179 872 361 1030 x 10-18", - "unit": "J Standard uncertainty 0", - "uncertainty": "", - "concise_value": "2.179 872 361 1030" - }, - { - "name": "Sackur-Tetrode constant (1 K, 100 kPa)", - "id": "sackur-tetrode_constant_(1_k,_100_kpa)", - "url": "https://physics.nist.gov/cgi-bin/cuu/Value?s0sr|search_for=all!", - "symbol": "sackur-tetrode_constant_(1_k,_100_kpa)", - "value": "-1.151 707 534 96", - "unit": "Standard uncertainty 0", - "uncertainty": "", - "concise_value": "-1.151 707 534 96" - }, - { - "name": "Sackur-Tetrode constant (1 K, 101.325 kPa)", - "id": "sackur-tetrode_constant_(1_k,_101.325_kpa)", - "url": "https://physics.nist.gov/cgi-bin/cuu/Value?s0srstd|search_for=all!", - "symbol": "sackur-tetrode_constant_(1_k,_101.325_kpa)", - "value": "-1.164 870 521 49", - "unit": "Standard uncertainty 0", - "uncertainty": "", - "concise_value": "-1.164 870 521 49" - }, - { - "name": "second radiation constant", - "id": "second_radiation_constant", - "url": "https://physics.nist.gov/cgi-bin/cuu/Value?c22ndrc|search_for=all!", - "symbol": "second_radiation_constant", - "value": "1.438 776 877... x 10-2", - "unit": "m K Standard uncertainty", - "uncertainty": "", - "concise_value": "1.438 776 877... x 10-2", - "concise_unit": "m K Click here for correlation coefficient of this constant with other constants" - }, - { - "name": "shielded helion gyromagnetic ratio", - "id": "shielded_helion_gyromagnetic_ratio", - "url": "https://physics.nist.gov/cgi-bin/cuu/Value?gammahp|search_for=all!", - "symbol": "shielded_helion_gyromagnetic_ratio", - "value": "2.037 894 6078 x 108", - "unit": "s-1 T-1 Standard uncertainty 0", - "uncertainty": "", - "concise_value": "2.037 894 6078" - }, - { - "name": "shielded helion gyromagnetic ratio in MHz/T", - "id": "shielded_helion_gyromagnetic_ratio_in_mhz/t", - "url": "https://physics.nist.gov/cgi-bin/cuu/Value?gammahpbar|search_for=all!", - "symbol": "shielded_helion_gyromagnetic_ratio_in_mhz/t", - "value": "32.434 100 033", - "unit": "MHz T-1 Standard uncertainty 0", - "uncertainty": "", - "concise_value": "32.434 100 033" - }, - { - "name": "shielded helion magnetic moment", - "id": "shielded_helion_magnetic_moment", - "url": "https://physics.nist.gov/cgi-bin/cuu/Value?muhp|search_for=all!", - "symbol": "shielded_helion_magnetic_moment", - "value": "-1.074 553 110 35 x 10-26", - "unit": "J T-1 Standard uncertainty 0", - "uncertainty": "", - "concise_value": "-1.074 553 110 35" - }, - { - "name": "shielded helion magnetic moment to Bohr magneton ratio", - "id": "shielded_helion_magnetic_moment_to_bohr_magneton_ratio", - "url": "https://physics.nist.gov/cgi-bin/cuu/Value?muhpsmub|search_for=all!", - "symbol": "shielded_helion_magnetic_moment_to_bohr_magneton_ratio", - "value": "-1.158 671 494 57 x 10-3", - "unit": "Standard uncertainty 0", - "uncertainty": "", - "concise_value": "-1.158 671 494 57" - }, - { - "name": "shielded helion magnetic moment to nuclear magneton ratio", - "id": "shielded_helion_magnetic_moment_to_nuclear_magneton_ratio", - "url": "https://physics.nist.gov/cgi-bin/cuu/Value?muhpsmun|search_for=all!", - "symbol": "shielded_helion_magnetic_moment_to_nuclear_magneton_ratio", - "value": "-2.127 497 7624", - "unit": "Standard uncertainty 0", - "uncertainty": "", - "concise_value": "-2.127 497 7624" - }, - { - "name": "shielded helion to proton magnetic moment ratio", - "id": "shielded_helion_to_proton_magnetic_moment_ratio", - "url": "https://physics.nist.gov/cgi-bin/cuu/Value?muhpsmup|search_for=all!", - "symbol": "shielded_helion_to_proton_magnetic_moment_ratio", - "value": "-0.761 766 577 21", - "unit": "Standard uncertainty 0", - "uncertainty": "", - "concise_value": "-0.761 766 577 21" - }, - { - "name": "shielded helion to shielded proton magnetic moment ratio", - "id": "shielded_helion_to_shielded_proton_magnetic_moment_ratio", - "url": "https://physics.nist.gov/cgi-bin/cuu/Value?muhpsmupp|search_for=all!", - "symbol": "shielded_helion_to_shielded_proton_magnetic_moment_ratio", - "value": "-0.761 786 1334", - "unit": "Standard uncertainty 0", - "uncertainty": "", - "concise_value": "-0.761 786 1334" - }, - { - "name": "shielded proton gyromagnetic ratio", - "id": "shielded_proton_gyromagnetic_ratio", - "url": "https://physics.nist.gov/cgi-bin/cuu/Value?gammapp|search_for=all!", - "symbol": "shielded_proton_gyromagnetic_ratio", - "value": "2.675 153 194 x 108", - "unit": "s-1 T-1 Standard uncertainty 0", - "uncertainty": "", - "concise_value": "2.675 153 194" - }, - { - "name": "shielded proton gyromagnetic ratio in MHz/T", - "id": "shielded_proton_gyromagnetic_ratio_in_mhz/t", - "url": "https://physics.nist.gov/cgi-bin/cuu/Value?gammappbar|search_for=all!", - "symbol": "shielded_proton_gyromagnetic_ratio_in_mhz/t", - "value": "42.576 385 43", - "unit": "MHz T-1 Standard uncertainty 0", - "uncertainty": "", - "concise_value": "42.576 385 43" - }, - { - "name": "shielded proton magnetic moment", - "id": "shielded_proton_magnetic_moment", - "url": "https://physics.nist.gov/cgi-bin/cuu/Value?mupp|search_for=all!", - "symbol": "shielded_proton_magnetic_moment", - "value": "1.410 570 5830 x 10-26", - "unit": "J T-1 Standard uncertainty 0", - "uncertainty": "", - "concise_value": "1.410 570 5830" - }, - { - "name": "shielded proton magnetic moment to Bohr magneton ratio", - "id": "shielded_proton_magnetic_moment_to_bohr_magneton_ratio", - "url": "https://physics.nist.gov/cgi-bin/cuu/Value?muppsmub|search_for=all!", - "symbol": "shielded_proton_magnetic_moment_to_bohr_magneton_ratio", - "value": "1.520 993 1551 x 10-3", - "unit": "Standard uncertainty 0", - "uncertainty": "", - "concise_value": "1.520 993 1551" - }, - { - "name": "shielded proton magnetic moment to nuclear magneton ratio", - "id": "shielded_proton_magnetic_moment_to_nuclear_magneton_ratio", - "url": "https://physics.nist.gov/cgi-bin/cuu/Value?muppsmun|search_for=all!", - "symbol": "shielded_proton_magnetic_moment_to_nuclear_magneton_ratio", - "value": "2.792 775 648", - "unit": "Standard uncertainty 0", - "uncertainty": "", - "concise_value": "2.792 775 648" - }, - { - "name": "shielding difference of d and p in HD", - "id": "shielding_difference_of_d_and_p_in_hd", - "url": "https://physics.nist.gov/cgi-bin/cuu/Value?sdp|search_for=all!", - "symbol": "shielding_difference_of_d_and_p_in_hd", - "value": "1.987 70 x 10-8", - "unit": "Standard uncertainty 0", - "uncertainty": "", - "concise_value": "1.987 70" - }, - { - "name": "shielding difference of t and p in HT", - "id": "shielding_difference_of_t_and_p_in_ht", - "url": "https://physics.nist.gov/cgi-bin/cuu/Value?stp|search_for=all!", - "symbol": "shielding_difference_of_t_and_p_in_ht", - "value": "2.394 50 x 10-8", - "unit": "Standard uncertainty 0", - "uncertainty": "", - "concise_value": "2.394 50" - }, - { - "name": "speed of light in vacuum", - "id": "speed_of_light_in_vacuum", - "url": "https://physics.nist.gov/cgi-bin/cuu/Value?c|search_for=all!", - "symbol": "speed_of_light_in_vacuum", - "value": "299 792 458", - "unit": "m s-1 Standard uncertainty", - "uncertainty": "", - "concise_value": "299 792 458", - "concise_unit": "m s-1 Click here for correlation coefficient of this constant with other constants" - }, - { - "name": "standard acceleration of gravity", - "id": "standard_acceleration_of_gravity", - "url": "https://physics.nist.gov/cgi-bin/cuu/Value?gn|search_for=all!", - "symbol": "standard_acceleration_of_gravity", - "value": "9.806 65", - "unit": "m s-2 Standard uncertainty", - "uncertainty": "", - "concise_value": "9.806 65", - "concise_unit": "m s-2 Click here for correlation coefficient of this constant with other constants" - }, - { - "name": "standard atmosphere", - "id": "standard_atmosphere", - "url": "https://physics.nist.gov/cgi-bin/cuu/Value?stdatm|search_for=all!", - "symbol": "standard_atmosphere", - "value": "101 325", - "unit": "Pa Standard uncertainty", - "uncertainty": "", - "concise_value": "101 325", - "concise_unit": "Pa Click here for correlation coefficient of this constant with other constants" - }, - { - "name": "standard-state pressure", - "id": "standard-state_pressure", - "url": "https://physics.nist.gov/cgi-bin/cuu/Value?stdspr|search_for=all!", - "symbol": "standard-state_pressure", - "value": "100 000", - "unit": "Pa Standard uncertainty", - "uncertainty": "", - "concise_value": "100 000", - "concise_unit": "Pa Click here for correlation coefficient of this constant with other constants" - }, - { - "name": "Stefan-Boltzmann constant", - "id": "stefan-boltzmann_constant", - "url": "https://physics.nist.gov/cgi-bin/cuu/Value?sigma|search_for=all!", - "symbol": "stefan-boltzmann_constant", - "value": "5.670 374 419... x 10-8", - "unit": "W m-2 K-4 Standard uncertainty", - "uncertainty": "", - "concise_value": "5.670 374 419... x 10-8", - "concise_unit": "W m-2 K-4 Click here for correlation coefficient of this constant with other constants" - }, - { - "name": "tau Compton wavelength", - "id": "tau_compton_wavelength", - "url": "https://physics.nist.gov/cgi-bin/cuu/Value?tcomwl|search_for=all!", - "symbol": "tau_compton_wavelength", - "value": "6.977 71 x 10-16", - "unit": "m Standard uncertainty 0", - "uncertainty": "", - "concise_value": "6.977 71" - }, - { - "name": "tau energy equivalent", - "id": "tau_energy_equivalent", - "url": "https://physics.nist.gov/cgi-bin/cuu/Value?mtauc2mev|search_for=all!", - "symbol": "tau_energy_equivalent", - "value": "1776.86", - "unit": "MeV Standard uncertainty 0", - "uncertainty": "", - "concise_value": "1776.86" - }, - { - "name": "tau mass", - "id": "tau_mass", - "url": "https://physics.nist.gov/cgi-bin/cuu/Value?mtau|search_for=all!", - "symbol": "tau_mass", - "value": "3.167 54 x 10-27", - "unit": "kg Standard uncertainty 0", - "uncertainty": "", - "concise_value": "3.167 54" - }, - { - "name": "tau mass energy equivalent", - "id": "tau_mass_energy_equivalent", - "url": "https://physics.nist.gov/cgi-bin/cuu/Value?mtauc2|search_for=all!", - "symbol": "tau_mass_energy_equivalent", - "value": "2.846 84 x 10-10", - "unit": "J Standard uncertainty 0", - "uncertainty": "", - "concise_value": "2.846 84" - }, - { - "name": "tau mass in u", - "id": "tau_mass_in_u", - "url": "https://physics.nist.gov/cgi-bin/cuu/Value?mtauu|search_for=all!", - "symbol": "tau_mass_in_u", - "value": "1.907 54", - "unit": "u Standard uncertainty 0", - "uncertainty": "", - "concise_value": "1.907 54" - }, - { - "name": "tau molar mass", - "id": "tau_molar_mass", - "url": "https://physics.nist.gov/cgi-bin/cuu/Value?mmtau|search_for=all!", - "symbol": "tau_molar_mass", - "value": "1.907 54 x 10-3", - "unit": "kg mol-1 Standard uncertainty 0", - "uncertainty": "", - "concise_value": "1.907 54" - }, - { - "name": "tau-electron mass ratio", - "id": "tau-electron_mass_ratio", - "url": "https://physics.nist.gov/cgi-bin/cuu/Value?mtausme|search_for=all!", - "symbol": "tau-electron_mass_ratio", - "value": "3477.23", - "unit": "Standard uncertainty 0", - "uncertainty": "", - "concise_value": "3477.23" - }, - { - "name": "tau-muon mass ratio", - "id": "tau-muon_mass_ratio", - "url": "https://physics.nist.gov/cgi-bin/cuu/Value?mtausmmu|search_for=all!", - "symbol": "tau-muon_mass_ratio", - "value": "16.8170", - "unit": "Standard uncertainty 0", - "uncertainty": "", - "concise_value": "16.8170" - }, - { - "name": "tau-neutron mass ratio", - "id": "tau-neutron_mass_ratio", - "url": "https://physics.nist.gov/cgi-bin/cuu/Value?mtausmn|search_for=all!", - "symbol": "tau-neutron_mass_ratio", - "value": "1.891 15", - "unit": "Standard uncertainty 0", - "uncertainty": "", - "concise_value": "1.891 15" - }, - { - "name": "tau-proton mass ratio", - "id": "tau-proton_mass_ratio", - "url": "https://physics.nist.gov/cgi-bin/cuu/Value?mtausmp|search_for=all!", - "symbol": "tau-proton_mass_ratio", - "value": "1.893 76", - "unit": "Standard uncertainty 0", - "uncertainty": "", - "concise_value": "1.893 76" - }, - { - "name": "Thomson cross section", - "id": "thomson_cross_section", - "url": "https://physics.nist.gov/cgi-bin/cuu/Value?sigmae|search_for=all!", - "symbol": "thomson_cross_section", - "value": "6.652 458 7051 x 10-29", - "unit": "m2 Standard uncertainty 0", - "uncertainty": "", - "concise_value": "6.652 458 7051" - }, - { - "name": "triton g factor", - "id": "triton_g_factor", - "url": "https://physics.nist.gov/cgi-bin/cuu/Value?gtn|search_for=all!", - "symbol": "triton_g_factor", - "value": "5.957 924 930", - "unit": "Standard uncertainty 0", - "uncertainty": "", - "concise_value": "5.957 924 930" - }, - { - "name": "triton magnetic moment", - "id": "triton_magnetic_moment", - "url": "https://physics.nist.gov/cgi-bin/cuu/Value?mut|search_for=all!", - "symbol": "triton_magnetic_moment", - "value": "1.504 609 5178 x 10-26", - "unit": "J T-1 Standard uncertainty 0", - "uncertainty": "", - "concise_value": "1.504 609 5178" - }, - { - "name": "triton magnetic moment to Bohr magneton ratio", - "id": "triton_magnetic_moment_to_bohr_magneton_ratio", - "url": "https://physics.nist.gov/cgi-bin/cuu/Value?mutsmub|search_for=all!", - "symbol": "triton_magnetic_moment_to_bohr_magneton_ratio", - "value": "1.622 393 6648 x 10-3", - "unit": "Standard uncertainty 0", - "uncertainty": "", - "concise_value": "1.622 393 6648" - }, - { - "name": "triton magnetic moment to nuclear magneton ratio", - "id": "triton_magnetic_moment_to_nuclear_magneton_ratio", - "url": "https://physics.nist.gov/cgi-bin/cuu/Value?mutsmun|search_for=all!", - "symbol": "triton_magnetic_moment_to_nuclear_magneton_ratio", - "value": "2.978 962 4650", - "unit": "Standard uncertainty 0", - "uncertainty": "", - "concise_value": "2.978 962 4650" - }, - { - "name": "triton mass", - "id": "triton_mass", - "url": "https://physics.nist.gov/cgi-bin/cuu/Value?mt|search_for=all!", - "symbol": "triton_mass", - "value": "5.007 356 7512 x 10-27", - "unit": "kg Standard uncertainty 0", - "uncertainty": "", - "concise_value": "5.007 356 7512" - }, - { - "name": "triton mass energy equivalent", - "id": "triton_mass_energy_equivalent", - "url": "https://physics.nist.gov/cgi-bin/cuu/Value?mtc2|search_for=all!", - "symbol": "triton_mass_energy_equivalent", - "value": "4.500 387 8119 x 10-10", - "unit": "J Standard uncertainty 0", - "uncertainty": "", - "concise_value": "4.500 387 8119" - }, - { - "name": "triton mass energy equivalent in MeV", - "id": "triton_mass_energy_equivalent_in_mev", - "url": "https://physics.nist.gov/cgi-bin/cuu/Value?mtc2mev|search_for=all!", - "symbol": "triton_mass_energy_equivalent_in_mev", - "value": "2808.921 136 68", - "unit": "MeV Standard uncertainty 0", - "uncertainty": "", - "concise_value": "2808.921 136 68" - }, - { - "name": "triton mass in u", - "id": "triton_mass_in_u", - "url": "https://physics.nist.gov/cgi-bin/cuu/Value?mtu|search_for=all!", - "symbol": "triton_mass_in_u", - "value": "3.015 500 715 97", - "unit": "u Standard uncertainty 0", - "uncertainty": "", - "concise_value": "3.015 500 715 97" - }, - { - "name": "triton molar mass", - "id": "triton_molar_mass", - "url": "https://physics.nist.gov/cgi-bin/cuu/Value?mmt|search_for=all!", - "symbol": "triton_molar_mass", - "value": "3.015 500 719 13 x 10-3", - "unit": "kg mol-1 Standard uncertainty 0", - "uncertainty": "", - "concise_value": "3.015 500 719 13" - }, - { - "name": "triton relative atomic mass", - "id": "triton_relative_atomic_mass", - "url": "https://physics.nist.gov/cgi-bin/cuu/Value?art|search_for=all!", - "symbol": "triton_relative_atomic_mass", - "value": "3.015 500 715 97", - "unit": "Standard uncertainty 0", - "uncertainty": "", - "concise_value": "3.015 500 715 97" - }, - { - "name": "triton to proton magnetic moment ratio", - "id": "triton_to_proton_magnetic_moment_ratio", - "url": "https://physics.nist.gov/cgi-bin/cuu/Value?mutsmup|search_for=all!", - "symbol": "triton_to_proton_magnetic_moment_ratio", - "value": "1.066 639 9189", - "unit": "Standard uncertainty 0", - "uncertainty": "", - "concise_value": "1.066 639 9189" - }, - { - "name": "triton-electron mass ratio", - "id": "triton-electron_mass_ratio", - "url": "https://physics.nist.gov/cgi-bin/cuu/Value?mtsme|search_for=all!", - "symbol": "triton-electron_mass_ratio", - "value": "5496.921 535 51", - "unit": "Standard uncertainty 0", - "uncertainty": "", - "concise_value": "5496.921 535 51" - }, - { - "name": "triton-proton mass ratio", - "id": "triton-proton_mass_ratio", - "url": "https://physics.nist.gov/cgi-bin/cuu/Value?mtsmp|search_for=all!", - "symbol": "triton-proton_mass_ratio", - "value": "2.993 717 034 03", - "unit": "Standard uncertainty 0", - "uncertainty": "", - "concise_value": "2.993 717 034 03" - }, - { - "name": "unified atomic mass unit", - "id": "unified_atomic_mass_unit", - "url": "https://physics.nist.gov/cgi-bin/cuu/Value?ukg|search_for=all!", - "symbol": "unified_atomic_mass_unit", - "value": "1.660 539 068 92 x 10-27", - "unit": "kg Standard uncertainty 0", - "uncertainty": "", - "concise_value": "1.660 539 068 92" - }, - { - "name": "vacuum electric permittivity", - "id": "vacuum_electric_permittivity", - "url": "https://physics.nist.gov/cgi-bin/cuu/Value?ep0|search_for=all!", - "symbol": "vacuum_electric_permittivity", - "value": "8.854 187 8188 x 10-12", - "unit": "F m-1 Standard uncertainty 0", - "uncertainty": "", - "concise_value": "8.854 187 8188" - }, - { - "name": "vacuum magnetic permeability", - "id": "vacuum_magnetic_permeability", - "url": "https://physics.nist.gov/cgi-bin/cuu/Value?mu0|search_for=all!", - "symbol": "vacuum_magnetic_permeability", - "value": "1.256 637 061 27 x 10-6", - "unit": "N A-2 Standard uncertainty 0", - "uncertainty": "", - "concise_value": "1.256 637 061 27" - }, - { - "name": "von Klitzing constant", - "id": "von_klitzing_constant", - "url": "https://physics.nist.gov/cgi-bin/cuu/Value?rk|search_for=all!", - "symbol": "von_klitzing_constant", - "value": "25 812.807 45...", - "unit": "Standard uncertainty", - "uncertainty": "", - "concise_value": "25 812.807 45...", - "concise_unit": "Click here for correlation coefficient of this constant with other constants" - }, - { - "name": "W to Z mass ratio", - "id": "w_to_z_mass_ratio", - "url": "https://physics.nist.gov/cgi-bin/cuu/Value?rmwmz|search_for=all!", - "symbol": "w_to_z_mass_ratio", - "value": "0.881 45", - "unit": "Standard uncertainty 0", - "uncertainty": "", - "concise_value": "0.881 45" - }, - { - "name": "weak mixing angle", - "id": "weak_mixing_angle", - "url": "https://physics.nist.gov/cgi-bin/cuu/Value?sin2th|search_for=all!", - "symbol": "weak_mixing_angle", - "value": "0.223 05", - "unit": "Standard uncertainty 0", - "uncertainty": "", - "concise_value": "0.223 05" - }, - { - "name": "Wien frequency displacement law constant", - "id": "wien_frequency_displacement_law_constant", - "url": "https://physics.nist.gov/cgi-bin/cuu/Value?bpwien|search_for=all!", - "symbol": "wien_frequency_displacement_law_constant", - "value": "5.878 925 757... x 1010", - "unit": "Hz K-1 Standard uncertainty", - "uncertainty": "", - "concise_value": "5.878 925 757... x 1010", - "concise_unit": "Hz K-1 Click here for correlation coefficient of this constant with other constants" - }, - { - "name": "Wien wavelength displacement law constant", - "id": "wien_wavelength_displacement_law_constant", - "url": "https://physics.nist.gov/cgi-bin/cuu/Value?bwien|search_for=all!", - "symbol": "wien_wavelength_displacement_law_constant", - "value": "2.897 771 955... x 10-3", - "unit": "m K Standard uncertainty", - "uncertainty": "", - "concise_value": "2.897 771 955... x 10-3", - "concise_unit": "m K" - } -] \ No newline at end of file +version https://git-lfs.github.com/spec/v1 +oid sha256:dda710df2412e8a126a322ce75dd67691652756f28ab0e5752982ab1f5f0f471 +size 139596