const num_yocto = 1e-24 // 1

const num_zepto = 1e-21 // 1

const num_atto = 1e-18 // 1

const num_femto = 1e-15 // 1

const num_pico = 1e-12 // 1

const num_cml_nano = 1e-9 // 1

const num_micro = 1e-6 // 1

const num_milli = 1e-3 // 1

const num_kilo = 1e+3 // 1

const num_mega = 1e+6 // 1

const num_giga = 1e+9 // 1

const num_tera = 1e+12 // 1

const num_peta = 1e+15 // 1

const num_exa = 1e+18 // 1

const num_zetta = 1e+21 // 1

const num_yotta = 1e+24 // 1

const num_avogadro = 6.02214199e+23 // 1 / mol

const num_fine_structure = 7.297352533e-3 // 1

const mks_gauss = 1e-4 // kg / a s^2

const mks_debye = 3.33564095198e-30 // a s^2 / m^2

const mks_vacuum_permeability = 1.25663706144e-6 // kg m / a^2 s^2

const mks_vacuum_permittivity = 8.854187817e-12 // a^2 s^4 / kg m^3

const mks_electron_charge = 1.602176487e-19 // a s

const mks_faraday = 9.64853429775e+4 // a s / mol

const mks_proton_magnetic_moment = 1.410606633e-26 // a m^2

const mks_electron_magnetic_moment = 9.28476362e-24 // a m^2

const mks_nuclear_magneton = 5.05078317e-27 // a m^2

const mks_bohr_magneton = 9.27400899e-24 // a m^2

const mks_thomson_cross_section = 6.65245893699e-29 // m^2

const mks_stefan_boltzmann_constant = 5.67040047374e-8 // kg / k^4 s^3

const mks_erg = 1e-7 // kg m^2 / s^2

const mks_joule = 1e+0 // kg m^2 / s^2

const mks_dyne = 1e-5 // kg m / s^2

const mks_newton = 1e+0 // kg m / s^2

const mks_bohr_radius = 5.291772083e-11 // m

const mks_solar_mass = 1.98892e+30 // kg

const mks_rad = 1e-2 // m^2 / s^2

const mks_roentgen = 2.58e-4 // a s / kg

const mks_curie = 3.7e+10 // 1 / s

const mks_footlambert = 1.07639104e+1 // cd sr / m^2

const mks_lambert = 1e+4 // cd sr / m^2

const mks_footcandle = 1.076e+1 // cd sr / m^2

const mks_phot = 1e+4 // cd sr / m^2

const mks_lux = 1e+0 // cd sr / m^2

const mks_lumen = 1e+0 // cd sr

const mks_stilb = 1e+4 // cd / m^2

const mks_stokes = 1e-4 // m^2 / s

const mks_poise = 1e-1 // kg m^-1 s^-1

const mks_psi = 6.89475729317e+3 // kg / m s^2

const mks_inch_of_water = 2.490889e+2 // kg / m s^2

const mks_inch_of_mercury = 3.38638815789e+3 // kg / m s^2

const mks_meter_of_mercury = 1.33322368421e+5 // kg / m s^2

const mks_torr = 1.33322368421e+2 // kg / m s^2

const mks_std_atmosphere = 1.01325e+5 // kg / m s^2

const mks_bar = 1e+5 // kg / m s^2

const mks_horsepower = 7.457e+2 // kg m^2 / s^3

const mks_therm = 1.05506e+8 // kg m^2 / s^2

const mks_btu = 1.05505585262e+3 // kg m^2 / s^2

const mks_calorie = 4.1868e+0 // kg m^2 / s^2

const mks_poundal = 1.38255e-1 // kg m / s^2

const mks_kilopound_force = 4.44822161526e+3 // kg m / s^2

const mks_pound_force = 4.44822161526e+0 // kg m / s^2

const mks_gram_force = 9.80665e-3 // kg m / s^2

const mks_unified_atomic_mass = 1.660538782e-27 // kg

const mks_carat = 2e-4 // kg

const mks_troy_ounce = 3.1103475e-2 // kg

const mks_uk_ton = 1.0160469088e+3 // kg

const mks_metric_ton = 1e+3 // kg

const mks_ton = 9.0718474e+2 // kg

const mks_ounce_mass = 2.8349523125e-2 // kg

const mks_pound_mass = 4.5359237e-1 // kg

const mks_knot = 5.14444444444e-1 // m / s

const mks_kilometers_per_hour = 2.77777777778e-1 // m / s

const mks_miles_per_hour = 4.4704e-1 // m / s

const mks_uk_gallon = 4.546092e-3 // m^3

const mks_canadian_gallon = 4.54609e-3 // m^3

const mks_teaspoon = 4.92892159375e-6 // m^3

const mks_tablespoon = 1.47867647813e-5 // m^3

const mks_fluid_ounce = 2.95735295626e-5 // m^3

const mks_cup = 2.36588236501e-4 // m^3

const mks_pint = 4.73176473002e-4 // m^3

const mks_quart = 9.46352946004e-4 // m^3

const mks_us_gallon = 3.78541178402e-3 // m^3

const mks_liter = 1e-3 // m^3

const mks_barn = 1e-28 // m^2

const mks_acre = 4.04685642241e+3 // m^2

const mks_hectare = 1e+4 // m^2

const mks_angstrom = 1e-10 // m

const mks_micron = 1e-6 // m

const mks_texpoint = 3.51459803515e-4 // m

const mks_point = 3.52777777778e-4 // m

const mks_mil = 2.54e-5 // m

const mks_fathom = 1.8288e+0 // m

const mks_nautical_mile = 1.852e+3 // m

const mks_mile = 1.609344e+3 // m

const mks_yard = 9.144e-1 // m

const mks_foot = 3.048e-1 // m

const mks_inch = 2.54e-2 // m

const mks_week = 6.048e+5 // s

const mks_day = 8.64e+4 // s

const mks_hour = 3.6e+3 // s

const mks_minute = 6e+1 // s

const mks_standard_gas_volume = 2.2710981e-2 // m^3 / mol

const mks_molar_gas = 8.314472e+0 // kg m^2 / k mol s^2

const mks_boltzmann = 1.3806504e-23 // kg m^2 / k s^2

const mks_rydberg = 2.17987196968e-18 // kg m^2 / s^2

const mks_mass_neutron = 1.67492716e-27 // kg

const mks_mass_proton = 1.67262158e-27 // kg

const mks_mass_muon = 1.88353109e-28 // kg

const mks_mass_electron = 9.10938188e-31 // kg

const mks_electron_volt = 1.602176487e-19 // kg m^2 / s^2

const mks_grav_accel = 9.80665e+0 // m / s^2

const mks_parsec = 3.08567758135e+16 // m

const mks_light_year = 9.46053620707e+15 // m

const mks_astronomical_unit = 1.49597870691e+11 // m

const mks_planck_temperature = 1.416785e+32 // Kelvin

const mks_plancks_constant_hbar = 1.05457162825e-34 // kg m^2 / s

const mks_plancks_constant_h = 6.62606896e-34 // kg m^2 / s

const mks_gravitational_constant = 6.673e-11 // m^3 / kg s^2

const mks_speed_of_light = 2.99792458e+8 // m / s

const cgs_speed_of_light = 2.99792458e+10 // cm / s

const cgs_gravitational_constant = 6.673e-8 // cm^3 / g s^2

const cgs_plancks_constant_h = 6.62606896e-27 // g cm^2 / s

const cgs_plancks_constant_hbar = 1.05457162825e-27 // g cm^2 / s

const cgs_planck_temperature = 1.416785e+32 // Kelvin

const cgs_astronomical_unit = 1.49597870691e+13 // cm

const cgs_light_year = 9.46053620707e+17 // cm

const cgs_parsec = 3.08567758135e+18 // cm

const cgs_grav_accel = 9.80665e+2 // cm / s^2

const cgs_electron_volt = 1.602176487e-12 // g cm^2 / s^2

const cgs_mass_electron = 9.10938188e-28 // g

const cgs_mass_muon = 1.88353109e-25 // g

const cgs_mass_proton = 1.67262158e-24 // g

const cgs_mass_neutron = 1.67492716e-24 // g

const cgs_rydberg = 2.17987196968e-11 // g cm^2 / s^2

const cgs_boltzmann = 1.3806504e-16 // g cm^2 / k s^2

const cgs_molar_gas = 8.314472e+7 // g cm^2 / k mol s^2

const cgs_standard_gas_volume = 2.2710981e+4 // cm^3 / mol

const cgs_minute = 6e+1 // s

const cgs_hour = 3.6e+3 // s

const cgs_day = 8.64e+4 // s

const cgs_week = 6.048e+5 // s

const cgs_inch = 2.54e+0 // cm

const cgs_foot = 3.048e+1 // cm

const cgs_yard = 9.144e+1 // cm

const cgs_mile = 1.609344e+5 // cm

const cgs_nautical_mile = 1.852e+5 // cm

const cgs_fathom = 1.8288e+2 // cm

const cgs_mil = 2.54e-3 // cm

const cgs_point = 3.52777777778e-2 // cm

const cgs_texpoint = 3.51459803515e-2 // cm

const cgs_micron = 1e-4 // cm

const cgs_angstrom = 1e-8 // cm

const cgs_hectare = 1e+8 // cm^2

const cgs_acre = 4.04685642241e+7 // cm^2

const cgs_barn = 1e-24 // cm^2

const cgs_liter = 1e+3 // cm^3

const cgs_us_gallon = 3.78541178402e+3 // cm^3

const cgs_quart = 9.46352946004e+2 // cm^3

const cgs_pint = 4.73176473002e+2 // cm^3

const cgs_cup = 2.36588236501e+2 // cm^3

const cgs_fluid_ounce = 2.95735295626e+1 // cm^3

const cgs_tablespoon = 1.47867647813e+1 // cm^3

const cgs_teaspoon = 4.92892159375e+0 // cm^3

const cgs_canadian_gallon = 4.54609e+3 // cm^3

const cgs_uk_gallon = 4.546092e+3 // cm^3

const cgs_miles_per_hour = 4.4704e+1 // cm / s

const cgs_kilometers_per_hour = 2.77777777778e+1 // cm / s

const cgs_knot = 5.14444444444e+1 // cm / s

const cgs_pound_mass = 4.5359237e+2 // g

const cgs_ounce_mass = 2.8349523125e+1 // g

const cgs_ton = 9.0718474e+5 // g

const cgs_metric_ton = 1e+6 // g

const cgs_uk_ton = 1.0160469088e+6 // g

const cgs_troy_ounce = 3.1103475e+1 // g

const cgs_carat = 2e-1 // g

const cgs_unified_atomic_mass = 1.660538782e-24 // g

const cgs_gram_force = 9.80665e+2 // cm g / s^2

const cgs_pound_force = 4.44822161526e+5 // cm g / s^2

const cgs_kilopound_force = 4.44822161526e+8 // cm g / s^2

const cgs_poundal = 1.38255e+4 // cm g / s^2

const cgs_calorie = 4.1868e+7 // g cm^2 / s^2

const cgs_btu = 1.05505585262e+10 // g cm^2 / s^2

const cgs_therm = 1.05506e+15 // g cm^2 / s^2

const cgs_horsepower = 7.457e+9 // g cm^2 / s^3

const cgs_bar = 1e+6 // g / cm s^2

const cgs_std_atmosphere = 1.01325e+6 // g / cm s^2

const cgs_torr = 1.33322368421e+3 // g / cm s^2

const cgs_meter_of_mercury = 1.33322368421e+6 // g / cm s^2

const cgs_inch_of_mercury = 3.38638815789e+4 // g / cm s^2

const cgs_inch_of_water = 2.490889e+3 // g / cm s^2

const cgs_psi = 6.89475729317e+4 // g / cm s^2

const cgs_poise = 1e+0 // g / cm s

const cgs_stokes = 1e+0 // cm^2 / s

const cgs_stilb = 1e+0 // cd / cm^2

const cgs_lumen = 1e+0 // cd sr

const cgs_lux = 1e-4 // cd sr / cm^2

const cgs_phot = 1e+0 // cd sr / cm^2

const cgs_footcandle = 1.076e-3 // cd sr / cm^2

const cgs_lambert = 1e+0 // cd sr / cm^2

const cgs_footlambert = 1.07639104e-3 // cd sr / cm^2

const cgs_curie = 3.7e+10 // 1 / s

const cgs_roentgen = 2.58e-7 // a s / g

const cgs_rad = 1e+2 // cm^2 / s^2

const cgs_solar_mass = 1.98892e+33 // g

const cgs_bohr_radius = 5.291772083e-9 // cm

const cgs_newton = 1e+5 // cm g / s^2

const cgs_dyne = 1e+0 // cm g / s^2

const cgs_joule = 1e+7 // g cm^2 / s^2

const cgs_erg = 1e+0 // g cm^2 / s^2

const cgs_stefan_boltzmann_constant = 5.67040047374e-5 // g / k^4 s^3

const cgs_thomson_cross_section = 6.65245893699e-25 // cm^2

const cgsm_speed_of_light = 2.99792458e+10 // cm / s

const cgsm_gravitational_constant = 6.673e-8 // cm^3 / g s^2

const cgsm_plancks_constant_h = 6.62606896e-27 // g cm^2 / s

const cgsm_plancks_constant_hbar = 1.05457162825e-27 // g cm^2 / s

const cgsm_planck_temperature = 1.416785e+32 // Kelvin

const cgsm_astronomical_unit = 1.49597870691e+13 // cm

const cgsm_light_year = 9.46053620707e+17 // cm

const cgsm_parsec = 3.08567758135e+18 // cm

const cgsm_grav_accel = 9.80665e+2 // cm / s^2

const cgsm_electron_volt = 1.602176487e-12 // g cm^2 / s^2

const cgsm_mass_electron = 9.10938188e-28 // g

const cgsm_mass_muon = 1.88353109e-25 // g

const cgsm_mass_proton = 1.67262158e-24 // g

const cgsm_mass_neutron = 1.67492716e-24 // g

const cgsm_rydberg = 2.17987196968e-11 // g cm^2 / s^2

const cgsm_boltzmann = 1.3806504e-16 // g cm^2 / k s^2

const cgsm_molar_gas = 8.314472e+7 // g cm^2 / k mol s^2

const cgsm_standard_gas_volume = 2.2710981e+4 // cm^3 / mol

const cgsm_minute = 6e+1 // s

const cgsm_hour = 3.6e+3 // s

const cgsm_day = 8.64e+4 // s

const cgsm_week = 6.048e+5 // s

const cgsm_inch = 2.54e+0 // cm

const cgsm_foot = 3.048e+1 // cm

const cgsm_yard = 9.144e+1 // cm

const cgsm_mile = 1.609344e+5 // cm

const cgsm_nautical_mile = 1.852e+5 // cm

const cgsm_fathom = 1.8288e+2 // cm

const cgsm_mil = 2.54e-3 // cm

const cgsm_point = 3.52777777778e-2 // cm

const cgsm_texpoint = 3.51459803515e-2 // cm

const cgsm_micron = 1e-4 // cm

const cgsm_angstrom = 1e-8 // cm

const cgsm_hectare = 1e+8 // cm^2

const cgsm_acre = 4.04685642241e+7 // cm^2

const cgsm_barn = 1e-24 // cm^2

const cgsm_liter = 1e+3 // cm^3

const cgsm_us_gallon = 3.78541178402e+3 // cm^3

const cgsm_quart = 9.46352946004e+2 // cm^3

const cgsm_pint = 4.73176473002e+2 // cm^3

const cgsm_cup = 2.36588236501e+2 // cm^3

const cgsm_fluid_ounce = 2.95735295626e+1 // cm^3

const cgsm_tablespoon = 1.47867647813e+1 // cm^3

const cgsm_teaspoon = 4.92892159375e+0 // cm^3

const cgsm_canadian_gallon = 4.54609e+3 // cm^3

const cgsm_uk_gallon = 4.546092e+3 // cm^3

const cgsm_miles_per_hour = 4.4704e+1 // cm / s

const cgsm_kilometers_per_hour = 2.77777777778e+1 // cm / s

const cgsm_knot = 5.14444444444e+1 // cm / s

const cgsm_pound_mass = 4.5359237e+2 // g

const cgsm_ounce_mass = 2.8349523125e+1 // g

const cgsm_ton = 9.0718474e+5 // g

const cgsm_metric_ton = 1e+6 // g

const cgsm_uk_ton = 1.0160469088e+6 // g

const cgsm_troy_ounce = 3.1103475e+1 // g

const cgsm_carat = 2e-1 // g

const cgsm_unified_atomic_mass = 1.660538782e-24 // g

const cgsm_gram_force = 9.80665e+2 // cm g / s^2

const cgsm_pound_force = 4.44822161526e+5 // cm g / s^2

const cgsm_kilopound_force = 4.44822161526e+8 // cm g / s^2

const cgsm_poundal = 1.38255e+4 // cm g / s^2

const cgsm_calorie = 4.1868e+7 // g cm^2 / s^2

const cgsm_btu = 1.05505585262e+10 // g cm^2 / s^2

const cgsm_therm = 1.05506e+15 // g cm^2 / s^2

const cgsm_horsepower = 7.457e+9 // g cm^2 / s^3

const cgsm_bar = 1e+6 // g / cm s^2

const cgsm_std_atmosphere = 1.01325e+6 // g / cm s^2

const cgsm_torr = 1.33322368421e+3 // g / cm s^2

const cgsm_meter_of_mercury = 1.33322368421e+6 // g / cm s^2

const cgsm_inch_of_mercury = 3.38638815789e+4 // g / cm s^2

const cgsm_inch_of_water = 2.490889e+3 // g / cm s^2

const cgsm_psi = 6.89475729317e+4 // g / cm s^2

const cgsm_poise = 1e+0 // g / cm s

const cgsm_stokes = 1e+0 // cm^2 / s

const cgsm_stilb = 1e+0 // cd / cm^2

const cgsm_lumen = 1e+0 // cd sr

const cgsm_lux = 1e-4 // cd sr / cm^2

const cgsm_phot = 1e+0 // cd sr / cm^2

const cgsm_footcandle = 1.076e-3 // cd sr / cm^2

const cgsm_lambert = 1e+0 // cd sr / cm^2

const cgsm_footlambert = 1.07639104e-3 // cd sr / cm^2

const cgsm_curie = 3.7e+10 // 1 / s

const cgsm_roentgen = 2.58e-8 // abamp s / g

const cgsm_rad = 1e+2 // cm^2 / s^2

const cgsm_solar_mass = 1.98892e+33 // g

const cgsm_bohr_radius = 5.291772083e-9 // cm

const cgsm_newton = 1e+5 // cm g / s^2

const cgsm_dyne = 1e+0 // cm g / s^2

const cgsm_joule = 1e+7 // g cm^2 / s^2

const cgsm_erg = 1e+0 // g cm^2 / s^2

const cgsm_stefan_boltzmann_constant = 5.67040047374e-5 // g / k^4 s^3

const cgsm_thomson_cross_section = 6.65245893699e-25 // cm^2

const cgsm_bohr_magneton = 9.27400899e-21 // abamp cm^2

const cgsm_nuclear_magneton = 5.05078317e-24 // abamp cm^2

const cgsm_electron_magnetic_moment = 9.28476362e-21 // abamp cm^2

const cgsm_proton_magnetic_moment = 1.410606633e-23 // abamp cm^2

const cgsm_faraday = 9.64853429775e+3 // abamp s / mol

const cgsm_electron_charge = 1.602176487e-20 // abamp s

const mksa_speed_of_light = 2.99792458e+8 // m / s

const mksa_gravitational_constant = 6.673e-11 // m^3 / kg s^2

const mksa_plancks_constant_h = 6.62606896e-34 // kg m^2 / s

const mksa_plancks_constant_hbar = 1.05457162825e-34 // kg m^2 / s

const mksa_planck_temperature = 1.416785e+32 // Kelvin

const mksa_astronomical_unit = 1.49597870691e+11 // m

const mksa_light_year = 9.46053620707e+15 // m

const mksa_parsec = 3.08567758135e+16 // m

const mksa_grav_accel = 9.80665e+0 // m / s^2

const mksa_electron_volt = 1.602176487e-19 // kg m^2 / s^2

const mksa_mass_electron = 9.10938188e-31 // kg

const mksa_mass_muon = 1.88353109e-28 // kg

const mksa_mass_proton = 1.67262158e-27 // kg

const mksa_mass_neutron = 1.67492716e-27 // kg

const mksa_rydberg = 2.17987196968e-18 // kg m^2 / s^2

const mksa_boltzmann = 1.3806504e-23 // kg m^2 / k s^2

const mksa_molar_gas = 8.314472e+0 // kg m^2 / k mol s^2

const mksa_standard_gas_volume = 2.2710981e-2 // m^3 / mol

const mksa_minute = 6e+1 // s

const mksa_hour = 3.6e+3 // s

const mksa_day = 8.64e+4 // s

const mksa_week = 6.048e+5 // s

const mksa_inch = 2.54e-2 // m

const mksa_foot = 3.048e-1 // m

const mksa_yard = 9.144e-1 // m

const mksa_mile = 1.609344e+3 // m

const mksa_nautical_mile = 1.852e+3 // m

const mksa_fathom = 1.8288e+0 // m

const mksa_mil = 2.54e-5 // m

const mksa_point = 3.52777777778e-4 // m

const mksa_texpoint = 3.51459803515e-4 // m

const mksa_micron = 1e-6 // m

const mksa_angstrom = 1e-10 // m

const mksa_hectare = 1e+4 // m^2

const mksa_acre = 4.04685642241e+3 // m^2

const mksa_barn = 1e-28 // m^2

const mksa_liter = 1e-3 // m^3

const mksa_us_gallon = 3.78541178402e-3 // m^3

const mksa_quart = 9.46352946004e-4 // m^3

const mksa_pint = 4.73176473002e-4 // m^3

const mksa_cup = 2.36588236501e-4 // m^3

const mksa_fluid_ounce = 2.95735295626e-5 // m^3

const mksa_tablespoon = 1.47867647813e-5 // m^3

const mksa_teaspoon = 4.92892159375e-6 // m^3

const mksa_canadian_gallon = 4.54609e-3 // m^3

const mksa_uk_gallon = 4.546092e-3 // m^3

const mksa_miles_per_hour = 4.4704e-1 // m / s

const mksa_kilometers_per_hour = 2.77777777778e-1 // m / s

const mksa_knot = 5.14444444444e-1 // m / s

const mksa_pound_mass = 4.5359237e-1 // kg

const mksa_ounce_mass = 2.8349523125e-2 // kg

const mksa_ton = 9.0718474e+2 // kg

const mksa_metric_ton = 1e+3 // kg

const mksa_uk_ton = 1.0160469088e+3 // kg

const mksa_troy_ounce = 3.1103475e-2 // kg

const mksa_carat = 2e-4 // kg

const mksa_unified_atomic_mass = 1.660538782e-27 // kg

const mksa_gram_force = 9.80665e-3 // kg m / s^2

const mksa_pound_force = 4.44822161526e+0 // kg m / s^2

const mksa_kilopound_force = 4.44822161526e+3 // kg m / s^2

const mksa_poundal = 1.38255e-1 // kg m / s^2

const mksa_calorie = 4.1868e+0 // kg m^2 / s^2

const mksa_btu = 1.05505585262e+3 // kg m^2 / s^2

const mksa_therm = 1.05506e+8 // kg m^2 / s^2

const mksa_horsepower = 7.457e+2 // kg m^2 / s^3

const mksa_bar = 1e+5 // kg / m s^2

const mksa_std_atmosphere = 1.01325e+5 // kg / m s^2

const mksa_torr = 1.33322368421e+2 // kg / m s^2

const mksa_meter_of_mercury = 1.33322368421e+5 // kg / m s^2

const mksa_inch_of_mercury = 3.38638815789e+3 // kg / m s^2

const mksa_inch_of_water = 2.490889e+2 // kg / m s^2

const mksa_psi = 6.89475729317e+3 // kg / m s^2

const mksa_poise = 1e-1 // kg m^-1 s^-1

const mksa_stokes = 1e-4 // m^2 / s

const mksa_stilb = 1e+4 // cd / m^2

const mksa_lumen = 1e+0 // cd sr

const mksa_lux = 1e+0 // cd sr / m^2

const mksa_phot = 1e+4 // cd sr / m^2

const mksa_footcandle = 1.076e+1 // cd sr / m^2

const mksa_lambert = 1e+4 // cd sr / m^2

const mksa_footlambert = 1.07639104e+1 // cd sr / m^2

const mksa_curie = 3.7e+10 // 1 / s

const mksa_roentgen = 2.58e-4 // a s / kg

const mksa_rad = 1e-2 // m^2 / s^2

const mksa_solar_mass = 1.98892e+30 // kg

const mksa_bohr_radius = 5.291772083e-11 // m

const mksa_newton = 1e+0 // kg m / s^2

const mksa_dyne = 1e-5 // kg m / s^2

const mksa_joule = 1e+0 // kg m^2 / s^2

const mksa_erg = 1e-7 // kg m^2 / s^2

const mksa_stefan_boltzmann_constant = 5.67040047374e-8 // kg / k^4 s^3

const mksa_thomson_cross_section = 6.65245893699e-29 // m^2

const mksa_bohr_magneton = 9.27400899e-24 // a m^2

const mksa_nuclear_magneton = 5.05078317e-27 // a m^2

const mksa_electron_magnetic_moment = 9.28476362e-24 // a m^2

const mksa_proton_magnetic_moment = 1.410606633e-26 // a m^2

const mksa_faraday = 9.64853429775e+4 // a s / mol

const mksa_electron_charge = 1.602176487e-19 // a s

const mksa_vacuum_permittivity = 8.854187817e-12 // a^2 s^4 / kg m^3

const mksa_vacuum_permeability = 1.25663706144e-6 // kg m / a^2 s^2

const mksa_debye = 3.33564095198e-30 // a s^2 / m^2

const mksa_gauss = 1e-4 // kg / a s^2