phc=fundamentalPhysicalConstantsFromNIST()

%%
%             Fundamental Physical Constants --- Complete Listing
%
%
%  From:  http://physics.nist.gov/constants
%%
% Automatically transfered to matlab syntax using c and awk by:
% Jarek Luberek / 2009
%%
function phc=fundamentalPhysicalConstantsFromNIST()
phc = struct(...
'x220_lattice_spacing_of_silicon', struct('value',192.0155762e-12, 'uncert', 0.0000050e-12, 'unit', 'm'), ...
'alpha_particle_electron_mass_ratio', struct('value',7294.2995365, 'uncert', 0.0000031, 'unit', ''), ...
'alpha_particle_mass', struct('value',6.64465620e-27, 'uncert', 0.00000033e-27, 'unit', 'kg'), ...
'alpha_particle_mass_energy_equivalent', struct('value',5.97191917e-10, 'uncert', 0.00000030e-10, 'unit', 'J'), ...
'alpha_particle_mass_energy_equivalent_in_MeV', struct('value',3727.379109, 'uncert', 0.000093, 'unit', 'MeV'), ...
'alpha_particle_mass_in_u', struct('value',4.001506179127, 'uncert', 0.000000000062, 'unit', 'u'), ...
'alpha_particle_molar_mass', struct('value',4.001506179127e-3, 'uncert', 0.000000000062e-3, 'unit', 'kgmol^-1'), ...
'alpha_particle_proton_mass_ratio', struct('value',3.97259968951, 'uncert', 0.00000000041, 'unit', ''), ...
'Angstrom_star', struct('value',1.00001498e-10, 'uncert', 0.00000090e-10, 'unit', 'm'), ...
'atomic_mass_constant', struct('value',1.660538782e-27, 'uncert', 0.000000083e-27, 'unit', 'kg'), ...
'atomic_mass_constant_energy_equivalent', struct('value',1.492417830e-10, 'uncert', 0.000000074e-10, 'unit', 'J'), ...
'atomic_mass_constant_energy_equivalent_in_MeV', struct('value',931.494028, 'uncert', 0.000023, 'unit', 'MeV'), ...
'atomic_mass_unit_electron_volt_relationship', struct('value',931.494028e6, 'uncert', 0.000023e6, 'unit', 'eV'), ...
'atomic_mass_unit_hartree_relationship', struct('value',3.4231777149e7, 'uncert', 0.0000000049e7, 'unit', 'E_h'), ...
'atomic_mass_unit_hertz_relationship', struct('value',2.2523427369e23, 'uncert', 0.0000000032e23, 'unit', 'Hz'), ...
'atomic_mass_unit_inverse_meter_relationship', struct('value',7.513006671e14, 'uncert', 0.000000011e14, 'unit', 'm^-1'), ...
'atomic_mass_unit_joule_relationship', struct('value',1.492417830e-10, 'uncert', 0.000000074e-10, 'unit', 'J'), ...
'atomic_mass_unit_kelvin_relationship', struct('value',1.0809527e13, 'uncert', 0.0000019e13, 'unit', 'K'), ...
'atomic_mass_unit_kilogram_relationship', struct('value',1.660538782e-27, 'uncert', 0.000000083e-27, 'unit', 'kg'), ...
'atomic_unit_of1st_hyperpolarizablity', struct('value',3.206361533e-53, 'uncert', 0.000000081e-53, 'unit', 'C^3m^3J^-2'), ...
'atomic_unit_of2nd_hyperpolarizablity', struct('value',6.23538095e-65, 'uncert', 0.00000031e-65, 'unit', 'C^4m^4J^-3'), ...
'atomic_unit_of_action', struct('value',1.054571628e-34, 'uncert', 0.000000053e-34, 'unit', 'Js'), ...
'atomic_unit_of_charge', struct('value',1.602176487e-19, 'uncert', 0.000000040e-19, 'unit', 'C'), ...
'atomic_unit_of_charge_density', struct('value',1.081202300e12, 'uncert', 0.000000027e12, 'unit', 'Cm^-3'), ...
'atomic_unit_of_current', struct('value',6.62361763e-3, 'uncert', 0.00000017e-3, 'unit', 'A'), ...
'atomic_unit_of_electric_dipole_mom', struct('value',8.47835281e-30, 'uncert', 0.00000021e-30, 'unit', 'Cm'), ...
'atomic_unit_of_electric_field', struct('value',5.14220632e11, 'uncert', 0.00000013e11, 'unit', 'Vm^-1'), ...
'atomic_unit_of_electric_field_gradient', struct('value',9.71736166e21, 'uncert', 0.00000024e21, 'unit', 'Vm^-2'), ...
'atomic_unit_of_electric_polarizablity', struct('value',1.6487772536e-41, 'uncert', 0.0000000034e-41, 'unit', 'C^2m^2J^-1'), ...
'atomic_unit_of_electric_potential', struct('value',27.21138386, 'uncert', 0.00000068, 'unit', 'V'), ...
'atomic_unit_of_electric_quadrupole_mom', struct('value',4.48655107e-40, 'uncert', 0.00000011e-40, 'unit', 'Cm^2'), ...
'atomic_unit_of_energy', struct('value',4.35974394e-18, 'uncert', 0.00000022e-18, 'unit', 'J'), ...
'atomic_unit_of_force', struct('value',8.23872206e-8, 'uncert', 0.00000041e-8, 'unit', 'N'), ...
'atomic_unit_of_length', struct('value',0.52917720859e-10, 'uncert', 0.00000000036e-10, 'unit', 'm'), ...
'atomic_unit_of_mag_dipole_mom', struct('value',1.854801830e-23, 'uncert', 0.000000046e-23, 'unit', 'JT^-1'), ...
'atomic_unit_of_mag_flux_density', struct('value',2.350517382e5, 'uncert', 0.000000059e5, 'unit', 'T'), ...
'atomic_unit_of_magnetizability', struct('value',7.891036433e-29, 'uncert', 0.000000027e-29, 'unit', 'JT^-2'), ...
'atomic_unit_of_mass', struct('value',9.10938215e-31, 'uncert', 0.00000045e-31, 'unit', 'kg'), ...
'atomic_unit_of_momentum', struct('value',1.992851565e-24, 'uncert', 0.000000099e-24, 'unit', 'kgms^-1'), ...
'atomic_unit_of_permittivity', struct('value',1.112650056e-10, 'uncert', 0, 'unit', 'Fm^-1'), ...
'atomic_unit_of_time', struct('value',2.418884326505e-17, 'uncert', 0.000000000016e-17, 'unit', 's'), ...
'atomic_unit_of_velocity', struct('value',2.1876912541e6, 'uncert', 0.0000000015e6, 'unit', 'ms^-1'), ...
'Avogadro_constant', struct('value',6.02214179e23, 'uncert', 0.00000030e23, 'unit', 'mol^-1'), ...
'Bohr_magneton', struct('value',927.400915e-26, 'uncert', 0.000023e-26, 'unit', 'JT^-1'), ...
'Bohr_magneton_in_eV_over_T', struct('value',5.7883817555e-5, 'uncert', 0.0000000079e-5, 'unit', 'eVT^-1'), ...
'Bohr_magneton_in_Hz_over_T', struct('value',13.99624604e9, 'uncert', 0.00000035e9, 'unit', 'HzT^-1'), ...
'Bohr_magneton_in_inverse_meters_per_tesla', struct('value',46.6864515, 'uncert', 0.0000012, 'unit', 'm^-1T^-1'), ...
'Bohr_magneton_in_K_over_T', struct('value',0.6717131, 'uncert', 0.0000012, 'unit', 'KT^-1'), ...
'Bohr_radius', struct('value',0.52917720859e-10, 'uncert', 0.00000000036e-10, 'unit', 'm'), ...
'Boltzmann_constant', struct('value',1.3806504e-23, 'uncert', 0.0000024e-23, 'unit', 'JK^-1'), ...
'Boltzmann_constant_in_eV_over_K', struct('value',8.617343e-5, 'uncert', 0.000015e-5, 'unit', 'eVK^-1'), ...
'Boltzmann_constant_in_Hz_over_K', struct('value',2.0836644e10, 'uncert', 0.0000036e10, 'unit', 'HzK^-1'), ...
'Boltzmann_constant_in_inverse_meters_per_kelvin', struct('value',69.50356, 'uncert', 0.00012, 'unit', 'm^-1K^-1'), ...
'characteristic_impedance_of_vacuum', struct('value',376.730313461, 'uncert', 0, 'unit', 'ohm'), ...
'classical_electron_radius', struct('value',2.8179402894e-15, 'uncert', 0.0000000058e-15, 'unit', 'm'), ...
'Compton_wavelength', struct('value',2.4263102175e-12, 'uncert', 0.0000000033e-12, 'unit', 'm'), ...
'Compton_wavelength_over2pi', struct('value',386.15926459e-15, 'uncert', 0.00000053e-15, 'unit', 'm'), ...
'conductance_quantum', struct('value',7.7480917004e-5, 'uncert', 0.0000000053e-5, 'unit', 'S'), ...
'conventional_value_of_Josephson_constant', struct('value',483597.9e9, 'uncert', 0, 'unit', 'HzV^-1'), ...
'conventional_value_of_von_Klitzing_constant', struct('value',25812.807, 'uncert', 0, 'unit', 'ohm'), ...
'Cu_x_unit', struct('value',1.00207699e-13, 'uncert', 0.00000028e-13, 'unit', 'm'), ...
'deuteron_electron_mag_mom_ratio', struct('value',-4.664345537e-4, 'uncert', 0.000000039e-4, 'unit', ''), ...
'deuteron_electron_mass_ratio', struct('value',3670.4829654, 'uncert', 0.0000016, 'unit', ''), ...
'deuteron_g_factor', struct('value',0.8574382308, 'uncert', 0.0000000072, 'unit', ''), ...
'deuteron_mag_mom', struct('value',0.433073465e-26, 'uncert', 0.000000011e-26, 'unit', 'JT^-1'), ...
'deuteron_mag_mom_to_Bohr_magneton_ratio', struct('value',0.4669754556e-3, 'uncert', 0.0000000039e-3, 'unit', ''), ...
'deuteron_mag_mom_to_nuclear_magneton_ratio', struct('value',0.8574382308, 'uncert', 0.0000000072, 'unit', ''), ...
'deuteron_mass', struct('value',3.34358320e-27, 'uncert', 0.00000017e-27, 'unit', 'kg'), ...
'deuteron_mass_energy_equivalent', struct('value',3.00506272e-10, 'uncert', 0.00000015e-10, 'unit', 'J'), ...
'deuteron_mass_energy_equivalent_in_MeV', struct('value',1875.612793, 'uncert', 0.000047, 'unit', 'MeV'), ...
'deuteron_mass_in_u', struct('value',2.013553212724, 'uncert', 0.000000000078, 'unit', 'u'), ...
'deuteron_molar_mass', struct('value',2.013553212724e-3, 'uncert', 0.000000000078e-3, 'unit', 'kgmol^-1'), ...
'deuteron_neutron_mag_mom_ratio', struct('value',-0.44820652, 'uncert', 0.00000011, 'unit', ''), ...
'deuteron_proton_mag_mom_ratio', struct('value',0.3070122070, 'uncert', 0.0000000024, 'unit', ''), ...
'deuteron_proton_mass_ratio', struct('value',1.99900750108, 'uncert', 0.00000000022, 'unit', ''), ...
'deuteron_rms_charge_radius', struct('value',2.1402e-15, 'uncert', 0.0028e-15, 'unit', 'm'), ...
'electric_constant', struct('value',8.854187817e-12, 'uncert', 0, 'unit', 'Fm^-1'), ...
'electron_charge_to_mass_quotient', struct('value',-1.758820150e11, 'uncert', 0.000000044e11, 'unit', 'Ckg^-1'), ...
'electron_deuteron_mag_mom_ratio', struct('value',-2143.923498, 'uncert', 0.000018, 'unit', ''), ...
'electron_deuteron_mass_ratio', struct('value',2.7244371093e-4, 'uncert', 0.0000000012e-4, 'unit', ''), ...
'electron_g_factor', struct('value',-2.0023193043622, 'uncert', 0.0000000000015, 'unit', ''), ...
'electron_gyromag_ratio', struct('value',1.760859770e11, 'uncert', 0.000000044e11, 'unit', 's^-1T^-1'), ...
'electron_gyromag_ratio_over2pi', struct('value',28024.95364, 'uncert', 0.00070, 'unit', 'MHzT^-1'), ...
'electron_mag_mom', struct('value',-928.476377e-26, 'uncert', 0.000023e-26, 'unit', 'JT^-1'), ...
'electron_mag_mom_anomaly', struct('value',1.15965218111e-3, 'uncert', 0.00000000074e-3, 'unit', ''), ...
'electron_mag_mom_to_Bohr_magneton_ratio', struct('value',-1.00115965218111, 'uncert', 0.00000000000074, 'unit', ''), ...
'electron_mag_mom_to_nuclear_magneton_ratio', struct('value',-1838.28197092, 'uncert', 0.00000080, 'unit', ''), ...
'electron_mass', struct('value',9.10938215e-31, 'uncert', 0.00000045e-31, 'unit', 'kg'), ...
'electron_mass_energy_equivalent', struct('value',8.18710438e-14, 'uncert', 0.00000041e-14, 'unit', 'J'), ...
'electron_mass_energy_equivalent_in_MeV', struct('value',0.510998910, 'uncert', 0.000000013, 'unit', 'MeV'), ...
'electron_mass_in_u', struct('value',5.4857990943e-4, 'uncert', 0.0000000023e-4, 'unit', 'u'), ...
'electron_molar_mass', struct('value',5.4857990943e-7, 'uncert', 0.0000000023e-7, 'unit', 'kgmol^-1'), ...
'electron_muon_mag_mom_ratio', struct('value',206.7669877, 'uncert', 0.0000052, 'unit', ''), ...
'electron_muon_mass_ratio', struct('value',4.83633171e-3, 'uncert', 0.00000012e-3, 'unit', ''), ...
'electron_neutron_mag_mom_ratio', struct('value',960.92050, 'uncert', 0.00023, 'unit', ''), ...
'electron_neutron_mass_ratio', struct('value',5.4386734459e-4, 'uncert', 0.0000000033e-4, 'unit', ''), ...
'electron_proton_mag_mom_ratio', struct('value',-658.2106848, 'uncert', 0.0000054, 'unit', ''), ...
'electron_proton_mass_ratio', struct('value',5.4461702177e-4, 'uncert', 0.0000000024e-4, 'unit', ''), ...
'electron_tau_mass_ratio', struct('value',2.87564e-4, 'uncert', 0.00047e-4, 'unit', ''), ...
'electron_to_alpha_particle_mass_ratio', struct('value',1.37093355570e-4, 'uncert', 0.00000000058e-4, 'unit', ''), ...
'electron_to_shielded_helion_mag_mom_ratio', struct('value',864.058257, 'uncert', 0.000010, 'unit', ''), ...
'electron_to_shielded_proton_mag_mom_ratio', struct('value',-658.2275971, 'uncert', 0.0000072, 'unit', ''), ...
'electron_volt', struct('value',1.602176487e-19, 'uncert', 0.000000040e-19, 'unit', 'J'), ...
'electron_volt_atomic_mass_unit_relationship', struct('value',1.073544188e-9, 'uncert', 0.000000027e-9, 'unit', 'u'), ...
'electron_volt_hartree_relationship', struct('value',3.674932540e-2, 'uncert', 0.000000092e-2, 'unit', 'E_h'), ...
'electron_volt_hertz_relationship', struct('value',2.417989454e14, 'uncert', 0.000000060e14, 'unit', 'Hz'), ...
'electron_volt_inverse_meter_relationship', struct('value',8.06554465e5, 'uncert', 0.00000020e5, 'unit', 'm^-1'), ...
'electron_volt_joule_relationship', struct('value',1.602176487e-19, 'uncert', 0.000000040e-19, 'unit', 'J'), ...
'electron_volt_kelvin_relationship', struct('value',1.1604505e4, 'uncert', 0.0000020e4, 'unit', 'K'), ...
'electron_volt_kilogram_relationship', struct('value',1.782661758e-36, 'uncert', 0.000000044e-36, 'unit', 'kg'), ...
'elementary_charge', struct('value',1.602176487e-19, 'uncert', 0.000000040e-19, 'unit', 'C'), ...
'elementary_charge_over_h', struct('value',2.417989454e14, 'uncert', 0.000000060e14, 'unit', 'AJ^-1'), ...
'Faraday_constant', struct('value',96485.3399, 'uncert', 0.0024, 'unit', 'Cmol^-1'), ...
'Faraday_constant_for_conventional_electric_current', struct('value',96485.3401, 'uncert', 0.0048, 'unit', 'C_90mol^-1'), ...
'Fermi_coupling_constant', struct('value',1.16637e-5, 'uncert', 0.00001e-5, 'unit', 'GeV^-2'), ...
'fine_structure_constant', struct('value',7.2973525376e-3, 'uncert', 0.0000000050e-3, 'unit', ''), ...
'first_radiation_constant', struct('value',3.74177118e-16, 'uncert', 0.00000019e-16, 'unit', 'Wm^2'), ...
'first_radiation_constant_for_spectral_radiance', struct('value',1.191042759e-16, 'uncert', 0.000000059e-16, 'unit', 'Wm^2sr^-1'), ...
'hartree_atomic_mass_unit_relationship', struct('value',2.9212622986e-8, 'uncert', 0.0000000042e-8, 'unit', 'u'), ...
'hartree_electron_volt_relationship', struct('value',27.21138386, 'uncert', 0.00000068, 'unit', 'eV'), ...
'Hartree_energy', struct('value',4.35974394e-18, 'uncert', 0.00000022e-18, 'unit', 'J'), ...
'Hartree_energy_in_eV', struct('value',27.21138386, 'uncert', 0.00000068, 'unit', 'eV'), ...
'hartree_hertz_relationship', struct('value',6.579683920722e15, 'uncert', 0.000000000044e15, 'unit', 'Hz'), ...
'hartree_inverse_meter_relationship', struct('value',2.194746313705e7, 'uncert', 0.000000000015e7, 'unit', 'm^-1'), ...
'hartree_joule_relationship', struct('value',4.35974394e-18, 'uncert', 0.00000022e-18, 'unit', 'J'), ...
'hartree_kelvin_relationship', struct('value',3.1577465e5, 'uncert', 0.0000055e5, 'unit', 'K'), ...
'hartree_kilogram_relationship', struct('value',4.85086934e-35, 'uncert', 0.00000024e-35, 'unit', 'kg'), ...
'helion_electron_mass_ratio', struct('value',5495.8852765, 'uncert', 0.0000052, 'unit', ''), ...
'helion_mass', struct('value',5.00641192e-27, 'uncert', 0.00000025e-27, 'unit', 'kg'), ...
'helion_mass_energy_equivalent', struct('value',4.49953864e-10, 'uncert', 0.00000022e-10, 'unit', 'J'), ...
'helion_mass_energy_equivalent_in_MeV', struct('value',2808.391383, 'uncert', 0.000070, 'unit', 'MeV'), ...
'helion_mass_in_u', struct('value',3.0149322473, 'uncert', 0.0000000026, 'unit', 'u'), ...
'helion_molar_mass', struct('value',3.0149322473e-3, 'uncert', 0.0000000026e-3, 'unit', 'kgmol^-1'), ...
'helion_proton_mass_ratio', struct('value',2.9931526713, 'uncert', 0.0000000026, 'unit', ''), ...
'hertz_atomic_mass_unit_relationship', struct('value',4.4398216294e-24, 'uncert', 0.0000000064e-24, 'unit', 'u'), ...
'hertz_electron_volt_relationship', struct('value',4.13566733e-15, 'uncert', 0.00000010e-15, 'unit', 'eV'), ...
'hertz_hartree_relationship', struct('value',1.519829846006e-16, 'uncert', 0.000000000010e-16, 'unit', 'E_h'), ...
'hertz_inverse_meter_relationship', struct('value',3.335640951e-9, 'uncert', 0, 'unit', 'm^-1'), ...
'hertz_joule_relationship', struct('value',6.62606896e-34, 'uncert', 0.00000033e-34, 'unit', 'J'), ...
'hertz_kelvin_relationship', struct('value',4.7992374e-11, 'uncert', 0.0000084e-11, 'unit', 'K'), ...
'hertz_kilogram_relationship', struct('value',7.37249600e-51, 'uncert', 0.00000037e-51, 'unit', 'kg'), ...
'inverse_fine_structure_constant', struct('value',137.035999679, 'uncert', 0.000000094, 'unit', ''), ...
'inverse_meter_atomic_mass_unit_relationship', struct('value',1.3310250394e-15, 'uncert', 0.0000000019e-15, 'unit', 'u'), ...
'inverse_meter_electron_volt_relationship', struct('value',1.239841875e-6, 'uncert', 0.000000031e-6, 'unit', 'eV'), ...
'inverse_meter_hartree_relationship', struct('value',4.556335252760e-8, 'uncert', 0.000000000030e-8, 'unit', 'E_h'), ...
'inverse_meter_hertz_relationship', struct('value',299792458, 'uncert', 0, 'unit', 'Hz'), ...
'inverse_meter_joule_relationship', struct('value',1.986445501e-25, 'uncert', 0.000000099e-25, 'unit', 'J'), ...
'inverse_meter_kelvin_relationship', struct('value',1.4387752e-2, 'uncert', 0.0000025e-2, 'unit', 'K'), ...
'inverse_meter_kilogram_relationship', struct('value',2.21021870e-42, 'uncert', 0.00000011e-42, 'unit', 'kg'), ...
'inverse_of_conductance_quantum', struct('value',12906.4037787, 'uncert', 0.0000088, 'unit', 'ohm'), ...
'Josephson_constant', struct('value',483597.891e9, 'uncert', 0.012e9, 'unit', 'HzV^-1'), ...
'joule_atomic_mass_unit_relationship', struct('value',6.70053641e9, 'uncert', 0.00000033e9, 'unit', 'u'), ...
'joule_electron_volt_relationship', struct('value',6.24150965e18, 'uncert', 0.00000016e18, 'unit', 'eV'), ...
'joule_hartree_relationship', struct('value',2.29371269e17, 'uncert', 0.00000011e17, 'unit', 'E_h'), ...
'joule_hertz_relationship', struct('value',1.509190450e33, 'uncert', 0.000000075e33, 'unit', 'Hz'), ...
'joule_inverse_meter_relationship', struct('value',5.03411747e24, 'uncert', 0.00000025e24, 'unit', 'm^-1'), ...
'joule_kelvin_relationship', struct('value',7.242963e22, 'uncert', 0.000013e22, 'unit', 'K'), ...
'joule_kilogram_relationship', struct('value',1.112650056e-17, 'uncert', 0, 'unit', 'kg'), ...
'kelvin_atomic_mass_unit_relationship', struct('value',9.251098e-14, 'uncert', 0.000016e-14, 'unit', 'u'), ...
'kelvin_electron_volt_relationship', struct('value',8.617343e-5, 'uncert', 0.000015e-5, 'unit', 'eV'), ...
'kelvin_hartree_relationship', struct('value',3.1668153e-6, 'uncert', 0.0000055e-6, 'unit', 'E_h'), ...
'kelvin_hertz_relationship', struct('value',2.0836644e10, 'uncert', 0.0000036e10, 'unit', 'Hz'), ...
'kelvin_inverse_meter_relationship', struct('value',69.50356, 'uncert', 0.00012, 'unit', 'm^-1'), ...
'kelvin_joule_relationship', struct('value',1.3806504e-23, 'uncert', 0.0000024e-23, 'unit', 'J'), ...
'kelvin_kilogram_relationship', struct('value',1.5361807e-40, 'uncert', 0.0000027e-40, 'unit', 'kg'), ...
'kilogram_atomic_mass_unit_relationship', struct('value',6.02214179e26, 'uncert', 0.00000030e26, 'unit', 'u'), ...
'kilogram_electron_volt_relationship', struct('value',5.60958912e35, 'uncert', 0.00000014e35, 'unit', 'eV'), ...
'kilogram_hartree_relationship', struct('value',2.06148616e34, 'uncert', 0.00000010e34, 'unit', 'E_h'), ...
'kilogram_hertz_relationship', struct('value',1.356392733e50, 'uncert', 0.000000068e50, 'unit', 'Hz'), ...
'kilogram_inverse_meter_relationship', struct('value',4.52443915e41, 'uncert', 0.00000023e41, 'unit', 'm^-1'), ...
'kilogram_joule_relationship', struct('value',8.987551787e16, 'uncert', 0, 'unit', 'J'), ...
'kilogram_kelvin_relationship', struct('value',6.509651e39, 'uncert', 0.000011e39, 'unit', 'K'), ...
'lattice_parameter_of_silicon', struct('value',543.102064e-12, 'uncert', 0.000014e-12, 'unit', 'm'), ...
'Loschmidt_constant_273_15K_101_325kPa', struct('value',2.6867774e25, 'uncert', 0.0000047e25, 'unit', 'm^-3'), ...
'mag_constant', struct('value',12.566370614e-7, 'uncert', 0, 'unit', 'NA^-2'), ...
'mag_flux_quantum', struct('value',2.067833667e-15, 'uncert', 0.000000052e-15, 'unit', 'Wb'), ...
'molar_gas_constant', struct('value',8.314472, 'uncert', 0.000015, 'unit', 'Jmol^-1K^-1'), ...
'molar_mass_constant', struct('value',1e-3, 'uncert', 0, 'unit', 'kgmol^-1'), ...
'molar_mass_of_carbon_12', struct('value',12e-3, 'uncert', 0, 'unit', 'kgmol^-1'), ...
'molar_Planck_constant', struct('value',3.9903126821e-10, 'uncert', 0.0000000057e-10, 'unit', 'Jsmol^-1'), ...
'molar_Planck_constant_times_c', struct('value',0.11962656472, 'uncert', 0.00000000017, 'unit', 'Jmmol^-1'), ...
'molar_volume_of_ideal_gas_273_15K_100kPa', struct('value',22.710981e-3, 'uncert', 0.000040e-3, 'unit', 'm^3mol^-1'), ...
'molar_volume_of_ideal_gas_273_15K_101_325kPa', struct('value',22.413996e-3, 'uncert', 0.000039e-3, 'unit', 'm^3mol^-1'), ...
'molar_volume_of_silicon', struct('value',12.0588349e-6, 'uncert', 0.0000011e-6, 'unit', 'm^3mol^-1'), ...
'Mo_x_unit', struct('value',1.00209955e-13, 'uncert', 0.00000053e-13, 'unit', 'm'), ...
'muon_Compton_wavelength', struct('value',11.73444104e-15, 'uncert', 0.00000030e-15, 'unit', 'm'), ...
'muon_Compton_wavelength_over2pi', struct('value',1.867594295e-15, 'uncert', 0.000000047e-15, 'unit', 'm'), ...
'muon_electron_mass_ratio', struct('value',206.7682823, 'uncert', 0.0000052, 'unit', ''), ...
'muon_g_factor', struct('value',-2.0023318414, 'uncert', 0.0000000012, 'unit', ''), ...
'muon_mag_mom', struct('value',-4.49044786e-26, 'uncert', 0.00000016e-26, 'unit', 'JT^-1'), ...
'muon_mag_mom_anomaly', struct('value',1.16592069e-3, 'uncert', 0.00000060e-3, 'unit', ''), ...
'muon_mag_mom_to_Bohr_magneton_ratio', struct('value',-4.84197049e-3, 'uncert', 0.00000012e-3, 'unit', ''), ...
'muon_mag_mom_to_nuclear_magneton_ratio', struct('value',-8.89059705, 'uncert', 0.00000023, 'unit', ''), ...
'muon_mass', struct('value',1.88353130e-28, 'uncert', 0.00000011e-28, 'unit', 'kg'), ...
'muon_mass_energy_equivalent', struct('value',1.692833510e-11, 'uncert', 0.000000095e-11, 'unit', 'J'), ...
'muon_mass_energy_equivalent_in_MeV', struct('value',105.6583668, 'uncert', 0.0000038, 'unit', 'MeV'), ...
'muon_mass_in_u', struct('value',0.1134289256, 'uncert', 0.0000000029, 'unit', 'u'), ...
'muon_molar_mass', struct('value',0.1134289256e-3, 'uncert', 0.0000000029e-3, 'unit', 'kgmol^-1'), ...
'muon_neutron_mass_ratio', struct('value',0.1124545167, 'uncert', 0.0000000029, 'unit', ''), ...
'muon_proton_mag_mom_ratio', struct('value',-3.183345137, 'uncert', 0.000000085, 'unit', ''), ...
'muon_proton_mass_ratio', struct('value',0.1126095261, 'uncert', 0.0000000029, 'unit', ''), ...
'muon_tau_mass_ratio', struct('value',5.94592e-2, 'uncert', 0.00097e-2, 'unit', ''), ...
'natural_unit_of_action', struct('value',1.054571628e-34, 'uncert', 0.000000053e-34, 'unit', 'Js'), ...
'natural_unit_of_action_in_eV_s', struct('value',6.58211899e-16, 'uncert', 0.00000016e-16, 'unit', 'eVs'), ...
'natural_unit_of_energy', struct('value',8.18710438e-14, 'uncert', 0.00000041e-14, 'unit', 'J'), ...
'natural_unit_of_energy_in_MeV', struct('value',0.510998910, 'uncert', 0.000000013, 'unit', 'MeV'), ...
'natural_unit_of_length', struct('value',386.15926459e-15, 'uncert', 0.00000053e-15, 'unit', 'm'), ...
'natural_unit_of_mass', struct('value',9.10938215e-31, 'uncert', 0.00000045e-31, 'unit', 'kg'), ...
'natural_unit_of_momentum', struct('value',2.73092406e-22, 'uncert', 0.00000014e-22, 'unit', 'kgms^-1'), ...
'natural_unit_of_momentum_in_MeV_over_c', struct('value',0.510998910, 'uncert', 0.000000013, 'unit', 'MeV/c'), ...
'natural_unit_of_time', struct('value',1.2880886570e-21, 'uncert', 0.0000000018e-21, 'unit', 's'), ...
'natural_unit_of_velocity', struct('value',299792458, 'uncert', 0, 'unit', 'ms^-1'), ...
'neutron_Compton_wavelength', struct('value',1.3195908951e-15, 'uncert', 0.0000000020e-15, 'unit', 'm'), ...
'neutron_Compton_wavelength_over2pi', struct('value',0.21001941382e-15, 'uncert', 0.00000000031e-15, 'unit', 'm'), ...
'neutron_electron_mag_mom_ratio', struct('value',1.04066882e-3, 'uncert', 0.00000025e-3, 'unit', ''), ...
'neutron_electron_mass_ratio', struct('value',1838.6836605, 'uncert', 0.0000011, 'unit', ''), ...
'neutron_g_factor', struct('value',-3.82608545, 'uncert', 0.00000090, 'unit', ''), ...
'neutron_gyromag_ratio', struct('value',1.83247185e8, 'uncert', 0.00000043e8, 'unit', 's^-1T^-1'), ...
'neutron_gyromag_ratio_over2pi', struct('value',29.1646954, 'uncert', 0.0000069, 'unit', 'MHzT^-1'), ...
'neutron_mag_mom', struct('value',-0.96623641e-26, 'uncert', 0.00000023e-26, 'unit', 'JT^-1'), ...
'neutron_mag_mom_to_Bohr_magneton_ratio', struct('value',-1.04187563e-3, 'uncert', 0.00000025e-3, 'unit', ''), ...
'neutron_mag_mom_to_nuclear_magneton_ratio', struct('value',-1.91304273, 'uncert', 0.00000045, 'unit', ''), ...
'neutron_mass', struct('value',1.674927211e-27, 'uncert', 0.000000084e-27, 'unit', 'kg'), ...
'neutron_mass_energy_equivalent', struct('value',1.505349505e-10, 'uncert', 0.000000075e-10, 'unit', 'J'), ...
'neutron_mass_energy_equivalent_in_MeV', struct('value',939.565346, 'uncert', 0.000023, 'unit', 'MeV'), ...
'neutron_mass_in_u', struct('value',1.00866491597, 'uncert', 0.00000000043, 'unit', 'u'), ...
'neutron_molar_mass', struct('value',1.00866491597e-3, 'uncert', 0.00000000043e-3, 'unit', 'kgmol^-1'), ...
'neutron_muon_mass_ratio', struct('value',8.89248409, 'uncert', 0.00000023, 'unit', ''), ...
'neutron_proton_mag_mom_ratio', struct('value',-0.68497934, 'uncert', 0.00000016, 'unit', ''), ...
'neutron_proton_mass_ratio', struct('value',1.00137841918, 'uncert', 0.00000000046, 'unit', ''), ...
'neutron_tau_mass_ratio', struct('value',0.528740, 'uncert', 0.000086, 'unit', ''), ...
'neutron_to_shielded_proton_mag_mom_ratio', struct('value',-0.68499694, 'uncert', 0.00000016, 'unit', ''), ...
'Newtonian_constant_of_gravitation', struct('value',6.67428e-11, 'uncert', 0.00067e-11, 'unit', 'm^3kg^-1s^-2'), ...
'Newtonian_constant_of_gravitation_over_h_bar_c', struct('value',6.70881e-39, 'uncert', 0.00067e-39, 'unit', '(GeV/c^2)^-2'), ...
'nuclear_magneton', struct('value',5.05078324e-27, 'uncert', 0.00000013e-27, 'unit', 'JT^-1'), ...
'nuclear_magneton_in_eV_over_T', struct('value',3.1524512326e-8, 'uncert', 0.0000000045e-8, 'unit', 'eVT^-1'), ...
'nuclear_magneton_in_inverse_meters_per_tesla', struct('value',2.542623616e-2, 'uncert', 0.000000064e-2, 'unit', 'm^-1T^-1'), ...
'nuclear_magneton_in_K_over_T', struct('value',3.6582637e-4, 'uncert', 0.0000064e-4, 'unit', 'KT^-1'), ...
'nuclear_magneton_in_MHz_over_T', struct('value',7.62259384, 'uncert', 0.00000019, 'unit', 'MHzT^-1'), ...
'Planck_constant', struct('value',6.62606896e-34, 'uncert', 0.00000033e-34, 'unit', 'Js'), ...
'Planck_constant_in_eV_s', struct('value',4.13566733e-15, 'uncert', 0.00000010e-15, 'unit', 'eVs'), ...
'Planck_constant_over2pi', struct('value',1.054571628e-34, 'uncert', 0.000000053e-34, 'unit', 'Js'), ...
'Planck_constant_over2pi_in_eV_s', struct('value',6.58211899e-16, 'uncert', 0.00000016e-16, 'unit', 'eVs'), ...
'Planck_constant_over2pi_times_c_in_MeV_fm', struct('value',197.3269631, 'uncert', 0.0000049, 'unit', 'MeVfm'), ...
'Planck_length', struct('value',1.616252e-35, 'uncert', 0.000081e-35, 'unit', 'm'), ...
'Planck_mass', struct('value',2.17644e-8, 'uncert', 0.00011e-8, 'unit', 'kg'), ...
'Planck_mass_energy_equivalent_in_GeV', struct('value',1.220892e19, 'uncert', 0.000061e19, 'unit', 'GeV'), ...
'Planck_temperature', struct('value',1.416785e32, 'uncert', 0.000071e32, 'unit', 'K'), ...
'Planck_time', struct('value',5.39124e-44, 'uncert', 0.00027e-44, 'unit', 's'), ...
'proton_charge_to_mass_quotient', struct('value',9.57883392e7, 'uncert', 0.00000024e7, 'unit', 'Ckg^-1'), ...
'proton_Compton_wavelength', struct('value',1.3214098446e-15, 'uncert', 0.0000000019e-15, 'unit', 'm'), ...
'proton_Compton_wavelength_over2pi', struct('value',0.21030890861e-15, 'uncert', 0.00000000030e-15, 'unit', 'm'), ...
'proton_electron_mass_ratio', struct('value',1836.15267247, 'uncert', 0.00000080, 'unit', ''), ...
'proton_g_factor', struct('value',5.585694713, 'uncert', 0.000000046, 'unit', ''), ...
'proton_gyromag_ratio', struct('value',2.675222099e8, 'uncert', 0.000000070e8, 'unit', 's^-1T^-1'), ...
'proton_gyromag_ratio_over2pi', struct('value',42.5774821, 'uncert', 0.0000011, 'unit', 'MHzT^-1'), ...
'proton_mag_mom', struct('value',1.410606662e-26, 'uncert', 0.000000037e-26, 'unit', 'JT^-1'), ...
'proton_mag_mom_to_Bohr_magneton_ratio', struct('value',1.521032209e-3, 'uncert', 0.000000012e-3, 'unit', ''), ...
'proton_mag_mom_to_nuclear_magneton_ratio', struct('value',2.792847356, 'uncert', 0.000000023, 'unit', ''), ...
'proton_mag_shielding_correction', struct('value',25.694e-6, 'uncert', 0.014e-6, 'unit', ''), ...
'proton_mass', struct('value',1.672621637e-27, 'uncert', 0.000000083e-27, 'unit', 'kg'), ...
'proton_mass_energy_equivalent', struct('value',1.503277359e-10, 'uncert', 0.000000075e-10, 'unit', 'J'), ...
'proton_mass_energy_equivalent_in_MeV', struct('value',938.272013, 'uncert', 0.000023, 'unit', 'MeV'), ...
'proton_mass_in_u', struct('value',1.00727646677, 'uncert', 0.00000000010, 'unit', 'u'), ...
'proton_molar_mass', struct('value',1.00727646677e-3, 'uncert', 0.00000000010e-3, 'unit', 'kgmol^-1'), ...
'proton_muon_mass_ratio', struct('value',8.88024339, 'uncert', 0.00000023, 'unit', ''), ...
'proton_neutron_mag_mom_ratio', struct('value',-1.45989806, 'uncert', 0.00000034, 'unit', ''), ...
'proton_neutron_mass_ratio', struct('value',0.99862347824, 'uncert', 0.00000000046, 'unit', ''), ...
'proton_rms_charge_radius', struct('value',0.8768e-15, 'uncert', 0.0069e-15, 'unit', 'm'), ...
'proton_tau_mass_ratio', struct('value',0.528012, 'uncert', 0.000086, 'unit', ''), ...
'quantum_of_circulation', struct('value',3.6369475199e-4, 'uncert', 0.0000000050e-4, 'unit', 'm^2s^-1'), ...
'quantum_of_circulation_times2', struct('value',7.273895040e-4, 'uncert', 0.000000010e-4, 'unit', 'm^2s^-1'), ...
'Rydberg_constant', struct('value',10973731.568527, 'uncert', 0.000073, 'unit', 'm^-1'), ...
'Rydberg_constant_times_c_in_Hz', struct('value',3.289841960361e15, 'uncert', 0.000000000022e15, 'unit', 'Hz'), ...
'Rydberg_constant_times_hc_in_eV', struct('value',13.60569193, 'uncert', 0.00000034, 'unit', 'eV'), ...
'Rydberg_constant_times_hc_in_J', struct('value',2.17987197e-18, 'uncert', 0.00000011e-18, 'unit', 'J'), ...
'Sackur_Tetrode_constant_1K_100kPa', struct('value',-1.1517047, 'uncert', 0.0000044, 'unit', ''), ...
'Sackur_Tetrode_constant_1K_101325kPa', struct('value',-1.1648677, 'uncert', 0.0000044, 'unit', ''), ...
'second_radiation_constant', struct('value',1.4387752e-2, 'uncert', 0.0000025e-2, 'unit', 'mK'), ...
'shielded_helion_gyromag_ratio', struct('value',2.037894730e8, 'uncert', 0.000000056e8, 'unit', 's^-1T^-1'), ...
'shielded_helion_gyromag_ratio_over2pi', struct('value',32.43410198, 'uncert', 0.00000090, 'unit', 'MHzT^-1'), ...
'shielded_helion_mag_mom', struct('value',-1.074552982e-26, 'uncert', 0.000000030e-26, 'unit', 'JT^-1'), ...
'shielded_helion_mag_mom_to_Bohr_magneton_ratio', struct('value',-1.158671471e-3, 'uncert', 0.000000014e-3, 'unit', ''), ...
'shielded_helion_mag_mom_to_nuclear_magneton_ratio', struct('value',-2.127497718, 'uncert', 0.000000025, 'unit', ''), ...
'shielded_helion_to_proton_mag_mom_ratio', struct('value',-0.761766558, 'uncert', 0.000000011, 'unit', ''), ...
'shielded_helion_to_shielded_proton_mag_mom_ratio', struct('value',-0.7617861313, 'uncert', 0.0000000033, 'unit', ''), ...
'shielded_proton_gyromag_ratio', struct('value',2.675153362e8, 'uncert', 0.000000073e8, 'unit', 's^-1T^-1'), ...
'shielded_proton_gyromag_ratio_over2pi', struct('value',42.5763881, 'uncert', 0.0000012, 'unit', 'MHzT^-1'), ...
'shielded_proton_mag_mom', struct('value',1.410570419e-26, 'uncert', 0.000000038e-26, 'unit', 'JT^-1'), ...
'shielded_proton_mag_mom_to_Bohr_magneton_ratio', struct('value',1.520993128e-3, 'uncert', 0.000000017e-3, 'unit', ''), ...
'shielded_proton_mag_mom_to_nuclear_magneton_ratio', struct('value',2.792775598, 'uncert', 0.000000030, 'unit', ''), ...
'speed_of_light_in_vacuum', struct('value',299792458, 'uncert', 0, 'unit', 'ms^-1'), ...
'standard_acceleration_of_gravity', struct('value',9.80665, 'uncert', 0, 'unit', 'ms^-2'), ...
'standard_atmosphere', struct('value',101325, 'uncert', 0, 'unit', 'Pa'), ...
'Stefan_Boltzmann_constant', struct('value',5.670400e-8, 'uncert', 0.000040e-8, 'unit', 'Wm^-2K^-4'), ...
'tau_Compton_wavelength', struct('value',0.69772e-15, 'uncert', 0.00011e-15, 'unit', 'm'), ...
'tau_Compton_wavelength_over2pi', struct('value',0.111046e-15, 'uncert', 0.000018e-15, 'unit', 'm'), ...
'tau_electron_mass_ratio', struct('value',3477.48, 'uncert', 0.57, 'unit', ''), ...
'tau_mass', struct('value',3.16777e-27, 'uncert', 0.00052e-27, 'unit', 'kg'), ...
'tau_mass_energy_equivalent', struct('value',2.84705e-10, 'uncert', 0.00046e-10, 'unit', 'J'), ...
'tau_mass_energy_equivalent_in_MeV', struct('value',1776.99, 'uncert', 0.29, 'unit', 'MeV'), ...
'tau_mass_in_u', struct('value',1.90768, 'uncert', 0.00031, 'unit', 'u'), ...
'tau_molar_mass', struct('value',1.90768e-3, 'uncert', 0.00031e-3, 'unit', 'kgmol^-1'), ...
'tau_muon_mass_ratio', struct('value',16.8183, 'uncert', 0.0027, 'unit', ''), ...
'tau_neutron_mass_ratio', struct('value',1.89129, 'uncert', 0.00031, 'unit', ''), ...
'tau_proton_mass_ratio', struct('value',1.89390, 'uncert', 0.00031, 'unit', ''), ...
'Thomson_cross_section', struct('value',0.6652458558e-28, 'uncert', 0.0000000027e-28, 'unit', 'm^2'), ...
'triton_electron_mag_mom_ratio', struct('value',-1.620514423e-3, 'uncert', 0.000000021e-3, 'unit', ''), ...
'triton_electron_mass_ratio', struct('value',5496.9215269, 'uncert', 0.0000051, 'unit', ''), ...
'triton_g_factor', struct('value',5.957924896, 'uncert', 0.000000076, 'unit', ''), ...
'triton_mag_mom', struct('value',1.504609361e-26, 'uncert', 0.000000042e-26, 'unit', 'JT^-1'), ...
'triton_mag_mom_to_Bohr_magneton_ratio', struct('value',1.622393657e-3, 'uncert', 0.000000021e-3, 'unit', ''), ...
'triton_mag_mom_to_nuclear_magneton_ratio', struct('value',2.978962448, 'uncert', 0.000000038, 'unit', ''), ...
'triton_mass', struct('value',5.00735588e-27, 'uncert', 0.00000025e-27, 'unit', 'kg'), ...
'triton_mass_energy_equivalent', struct('value',4.50038703e-10, 'uncert', 0.00000022e-10, 'unit', 'J'), ...
'triton_mass_energy_equivalent_in_MeV', struct('value',2808.920906, 'uncert', 0.000070, 'unit', 'MeV'), ...
'triton_mass_in_u', struct('value',3.0155007134, 'uncert', 0.0000000025, 'unit', 'u'), ...
'triton_molar_mass', struct('value',3.0155007134e-3, 'uncert', 0.0000000025e-3, 'unit', 'kgmol^-1'), ...
'triton_neutron_mag_mom_ratio', struct('value',-1.55718553, 'uncert', 0.00000037, 'unit', ''), ...
'triton_proton_mag_mom_ratio', struct('value',1.066639908, 'uncert', 0.000000010, 'unit', ''), ...
'triton_proton_mass_ratio', struct('value',2.9937170309, 'uncert', 0.0000000025, 'unit', ''), ...
'unified_atomic_mass_unit', struct('value',1.660538782e-27, 'uncert', 0.000000083e-27, 'unit', 'kg'), ...
'von_Klitzing_constant', struct('value',25812.807557, 'uncert', 0.000018, 'unit', 'ohm'), ...
'weak_mixing_angle', struct('value',0.22255, 'uncert', 0.00056, 'unit', ''), ...
'Wien_frequency_displacement_law_constant', struct('value',5.878933e10, 'uncert', 0.000010e10, 'unit', 'HzK^-1'), ...
'Wien_wavelength_displacement_law_constant', struct('value',2.8977685e-3, 'uncert', 0.0000051e-3, 'unit', 'mK'));