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breeze.numerics.constants.Database.scala Maven / Gradle / Ivy
package breeze.numerics.constants
import scala.collection.immutable.HashMap
import scala.util.matching.Regex
/**Object encapsulating CODATA2010 constants.
*
* @author ktakagaki
* @date 3/12/14.
*/
object Database {
/** Return a vector containing all database keys.
*/
def list() = databaseHM.keys.toVector
/** Look up the value of a specific entry.
* Name must be an exact match with the entry.
*/
def value(string: String) = databaseHM(string)._1
/** Look up the value of entries with name matching the given regex expression.
*
* @param regex enter a regex object (i.e. """regex expression""".r)
* @return returns a vector of (String, Double) objects, which contain the full entry name (String) and the value (Double)
*/
def value(regex: Regex) = databaseHM.collect{
case (key: String, (value: Double, _, _)) if regex.findFirstIn(key).nonEmpty => (key, value)
}
/** Look up the uncertainty of a specific entry.
* Name must be an exact match with the entry.
*/
def uncertainty(string: String) = databaseHM(string)._2
/** Look up the uncertainty of entries with name matching the given regex expression.
*
* @param regex enter a regex object (i.e. """regex expression""".r)
* @return returns a vector of (String, Double) objects, which contain the full entry name (String) and the uncertainty (Double)
*/
def uncertainty(regex: Regex) = databaseHM.collect{
case (key: String, (_, uncert: Double, _)) if regex.findFirstIn(key).nonEmpty => (key, uncert)
}
/** Look up the unit of a specific entry.
* Name must be an exact match with the entry.
*/
def unit(string: String) = databaseHM(string)._3
/** Look up the unit of entries with name matching the given regex expression.
*
* @param regex enter a regex object (i.e. """regex expression""".r)
* @return returns a vector of (String, Double) objects, which contain the full entry name (String) and the uncertainty (Double)
*/
def unit(regex: Regex) = databaseHM.collect{
case (key: String, (_, _, unit: String)) if regex.findFirstIn(key).nonEmpty => (key, unit)
}
//
private lazy val databaseHM = HashMap[String, (Double, Double, String)](
("""{220} lattice spacing of silicon""", ( 1.920155714E-10, 3.2E-18, """m""")),
("""alpha particle-electron mass ratio""", ( 7294.29953610, 2.9E-6, """""")),
("""alpha particle mass""", ( 6.64465675E-27, 2.9E-34, """kg""")),
("""alpha particle mass energy equivalent""", ( 5.97191967E-10, 2.6E-17, """J""")),
("""alpha particle mass energy equivalent in MeV""", ( 3727.379240, 0.000082, """MeV""")),
("""alpha particle mass in u""", ( 4.0015061791250, 6.2E-11, """u""")),
("""alpha particle molar mass""", ( 0.0040015061791250, 6.2E-14, """kg mol^-1""")),
("""alpha particle-proton mass ratio""", ( 3.97259968933, 3.6E-10, """""")),
("""Angstrom star""", ( 1.00001495E-10, 9.0E-17, """m""")),
("""atomic mass constant""", ( 1.660538921E-27, 7.3E-35, """kg""")),
("""atomic mass constant energy equivalent""", ( 1.492417954E-10, 6.6E-18, """J""")),
("""atomic mass constant energy equivalent in MeV""", ( 931.4940610, 0.000021, """MeV""")),
("""atomic mass unit-electron volt relationship""", ( 9.31494061E8, 21.0, """eV""")),
("""atomic mass unit-hartree relationship""", ( 3.4231776845E7, 0.024, """E_h""")),
("""atomic mass unit-hertz relationship""", ( 2.2523427168E23, 1.6E14, """Hz""")),
("""atomic mass unit-inverse meter relationship""", ( 7.5130066042E14, 530000.0, """m^-1""")),
("""atomic mass unit-joule relationship""", ( 1.492417954E-10, 6.6E-18, """J""")),
("""atomic mass unit-kelvin relationship""", ( 1.08095408E13, 9.8E6, """K""")),
("""atomic mass unit-kilogram relationship""", ( 1.660538921E-27, 7.3E-35, """kg""")),
("""atomic unit of 1st hyperpolarizability""", ( 3.206361449E-53, 7.1E-61, """C^3 m^3 J^-2""")),
("""atomic unit of 2nd hyperpolarizability""", ( 6.23538054E-65, 2.8E-72, """C^4 m^4 J^-3""")),
("""atomic unit of action""", ( 1.054571726E-34, 4.7E-42, """J s""")),
("""atomic unit of charge""", ( 1.602176565E-19, 3.5E-27, """C""")),
("""atomic unit of charge density""", ( 1.081202338E12, 24000.0, """C m^-3""")),
("""atomic unit of current""", ( 0.006623617950, 1.5E-10, """A""")),
("""atomic unit of electric dipole mom.""", ( 8.47835326E-30, 1.9E-37, """C m""")),
("""atomic unit of electric field""", ( 5.14220652E11, 11000.0, """V m^-1""")),
("""atomic unit of electric field gradient""", ( 9.717362E21, 2.1E14, """V m^-2""")),
("""atomic unit of electric polarizability""", ( 1.6487772754E-41, 1.6E-50, """C^2 m^2 J^-1""")),
("""atomic unit of electric potential""", ( 27.21138505, 6.0E-7, """V""")),
("""atomic unit of electric quadrupole mom.""", ( 4.486551331E-40, 9.9E-48, """C m^2""")),
("""atomic unit of energy""", ( 4.35974434E-18, 1.9E-25, """J""")),
("""atomic unit of force""", ( 8.23872278E-8, 3.6E-15, """N""")),
("""atomic unit of length""", ( 5.2917721092E-11, 1.7E-20, """m""")),
("""atomic unit of mag. dipole mom.""", ( 1.854801936E-23, 4.1E-31, """J T^-1""")),
("""atomic unit of mag. flux density""", ( 235051.7464, 0.0052, """T""")),
("""atomic unit of magnetizability""", ( 7.891036607E-29, 1.3E-37, """J T^-2""")),
("""atomic unit of mass""", ( 9.10938291E-31, 4.0E-38, """kg""")),
("""atomic unit of mom.um""", ( 1.99285174E-24, 8.8E-32, """kg m s^-1""")),
("""atomic unit of permittivity""", ( 1.112650056E-10, 0d, """F m^-1""")),
("""atomic unit of time""", ( 2.418884326502E-17, 1.2E-28, """s""")),
("""atomic unit of velocity""", ( 2.18769126379E6, 0.00071, """m s^-1""")),
("""Avogadro constant""", ( 6.02214129E23, 2.7E16, """mol^-1""")),
("""Bohr magneton""", ( 9.27400968E-24, 2.0E-31, """J T^-1""")),
("""Bohr magneton in eV/T""", ( 0.0000578838180660, 3.8E-14, """eV T^-1""")),
("""Bohr magneton in Hz/T""", ( 1.399624555E10, 310.0, """Hz T^-1""")),
("""Bohr magneton in inverse meters per tesla""", ( 46.68644980, 1.0E-6, """m^-1 T^-1""")),
("""Bohr magneton in K/T""", ( 0.67171388, 6.1E-7, """K T^-1""")),
("""Bohr radius""", ( 5.2917721092E-11, 1.7E-20, """m""")),
("""Boltzmann constant""", ( 1.3806488E-23, 1.3E-29, """J K^-1""")),
("""Boltzmann constant in eV/K""", ( 0.000086173324, 7.8E-11, """eV K^-1""")),
("""Boltzmann constant in Hz/K""", ( 2.0836618E10, 19000.0, """Hz K^-1""")),
("""Boltzmann constant in inverse meters per kelvin""", ( 69.503476, 0.000063, """m^-1 K^-1""")),
("""characteristic impedance of vacuum""", ( 376.730313461, 0d, """ohm""")),
("""classical electron radius""", ( 2.8179403267E-15, 2.7E-24, """m""")),
("""Compton wavelength""", ( 2.4263102389E-12, 1.6E-21, """m""")),
("""Compton wavelength over 2 pi""", ( 3.86159268E-13, 2.5E-22, """m""")),
("""conductance quantum""", ( 0.0000774809173460, 2.5E-14, """S""")),
("""conventional value of Josephson constant""", ( 4.835979E14, 0d, """Hz V^-1""")),
("""conventional value of von Klitzing constant""", ( 25812.807, 0d, """ohm""")),
("""Cu x unit""", ( 1.00207697E-13, 2.8E-20, """m""")),
("""deuteron-electron mag. mom. ratio""", ( -0.0004664345537, 3.9E-12, """""")),
("""deuteron-electron mass ratio""", ( 3670.48296520, 1.5E-6, """""")),
("""deuteron g factor""", ( 0.8574382308, 7.2E-9, """""")),
("""deuteron mag. mom.""", ( 4.33073489E-27, 1.0E-34, """J T^-1""")),
("""deuteron mag. mom. to Bohr magneton ratio""", ( 0.0004669754556, 3.9E-12, """""")),
("""deuteron mag. mom. to nuclear magneton ratio""", ( 0.8574382308, 7.2E-9, """""")),
("""deuteron mass""", ( 3.34358348E-27, 1.5E-34, """kg""")),
("""deuteron mass energy equivalent""", ( 3.00506297E-10, 1.3E-17, """J""")),
("""deuteron mass energy equivalent in MeV""", ( 1875.612859, 0.000041, """MeV""")),
("""deuteron mass in u""", ( 2.0135532127120, 7.7E-11, """u""")),
("""deuteron molar mass""", ( 0.0020135532127120, 7.7E-14, """kg mol^-1""")),
("""deuteron-neutron mag. mom. ratio""", ( -0.44820652, 1.1E-7, """""")),
("""deuteron-proton mag. mom. ratio""", ( 0.3070122070, 2.4E-9, """""")),
("""deuteron-proton mass ratio""", ( 1.99900750097, 1.8E-10, """""")),
("""deuteron rms charge radius""", ( 2.1424E-15, 2.1E-18, """m""")),
("""electric constant""", ( 8.854187817E-12, 0d, """F m^-1""")),
("""electron charge to mass quotient""", ( -1.758820088E11, 3900.0, """C kg^-1""")),
("""electron-deuteron mag. mom. ratio""", ( -2143.923498, 0.000018, """""")),
("""electron-deuteron mass ratio""", ( 0.000272443710950, 1.1E-13, """""")),
("""electron g factor""", ( -2.002319304361530, 5.3E-13, """""")),
("""electron gyromag. ratio""", ( 1.760859708E11, 3900.0, """s^-1 T^-1""")),
("""electron gyromag. ratio over 2 pi""", ( 28024.95266, 0.00062, """MHz T^-1""")),
("""electron-helion mass ratio""", ( 0.000181954307610, 1.7E-13, """""")),
("""electron mag. mom.""", ( -9.2847643E-24, 2.1E-31, """J T^-1""")),
("""electron mag. mom. anomaly""", ( 0.00115965218076, 2.7E-13, """""")),
("""electron mag. mom. to Bohr magneton ratio""", ( -1.001159652180760, 2.7E-13, """""")),
("""electron mag. mom. to nuclear magneton ratio""", ( -1838.28197090, 7.5E-7, """""")),
("""electron mass""", ( 9.10938291E-31, 4.0E-38, """kg""")),
("""electron mass energy equivalent""", ( 8.18710506E-14, 3.6E-21, """J""")),
("""electron mass energy equivalent in MeV""", ( 0.5109989280, 1.1E-8, """MeV""")),
("""electron mass in u""", ( 0.000548579909460, 2.2E-13, """u""")),
("""electron molar mass""", ( 5.4857990946E-7, 2.2E-16, """kg mol^-1""")),
("""electron-muon mag. mom. ratio""", ( 206.7669896, 5.2E-6, """""")),
("""electron-muon mass ratio""", ( 0.004836331660, 1.2E-10, """""")),
("""electron-neutron mag. mom. ratio""", ( 960.92050, 0.00023, """""")),
("""electron-neutron mass ratio""", ( 0.000543867344610, 3.2E-13, """""")),
("""electron-proton mag. mom. ratio""", ( -658.2106848, 5.4E-6, """""")),
("""electron-proton mass ratio""", ( 0.000544617021780, 2.2E-13, """""")),
("""electron-tau mass ratio""", ( 0.000287592, 2.6E-8, """""")),
("""electron to alpha particle mass ratio""", ( 0.000137093355578, 5.5E-14, """""")),
("""electron to shielded helion mag. mom. ratio""", ( 864.0582570, 1.0E-5, """""")),
("""electron to shielded proton mag. mom. ratio""", ( -658.2275971, 7.2E-6, """""")),
("""electron-triton mass ratio""", ( 0.000181920006530, 1.7E-13, """""")),
("""electron volt""", ( 1.602176565E-19, 3.5E-27, """J""")),
("""electron volt-atomic mass unit relationship""", ( 1.07354415E-9, 2.4E-17, """u""")),
("""electron volt-hartree relationship""", ( 0.03674932379, 8.1E-10, """E_h""")),
("""electron volt-hertz relationship""", ( 2.417989348E14, 5.3E6, """Hz""")),
("""electron volt-inverse meter relationship""", ( 806554.4290, 0.018, """m^-1""")),
("""electron volt-joule relationship""", ( 1.602176565E-19, 3.5E-27, """J""")),
("""electron volt-kelvin relationship""", ( 11604.519, 0.011, """K""")),
("""electron volt-kilogram relationship""", ( 1.782661845E-36, 3.9E-44, """kg""")),
("""elementary charge""", ( 1.602176565E-19, 3.5E-27, """C""")),
("""elementary charge over h""", ( 2.417989348E14, 5.3E6, """A J^-1""")),
("""Faraday constant""", ( 96485.33650, 0.0021, """C mol^-1""")),
("""Faraday constant for conventional electric current""", ( 96485.33210, 0.0043, """C_90 mol^-1""")),
("""Fermi coupling constant""", ( 0.000011663640, 5.0E-11, """GeV^-2""")),
("""fine-structure constant""", ( 0.00729735256980, 2.4E-12, """""")),
("""first radiation constant""", ( 3.74177153E-16, 1.7E-23, """W m^2""")),
("""first radiation constant for spectral radiance""", ( 1.191042869E-16, 5.3E-24, """W m^2 sr^-1""")),
("""hartree-atomic mass unit relationship""", ( 2.9212623246E-8, 2.1E-17, """u""")),
("""hartree-electron volt relationship""", ( 27.21138505, 6.0E-7, """eV""")),
("""Hartree energy""", ( 4.35974434E-18, 1.9E-25, """J""")),
("""Hartree energy in eV""", ( 27.21138505, 6.0E-7, """eV""")),
("""hartree-hertz relationship""", ( 6.579683920729E15, 33000.0, """Hz""")),
("""hartree-inverse meter relationship""", ( 2.194746313708E7, 0.00011, """m^-1""")),
("""hartree-joule relationship""", ( 4.35974434E-18, 1.9E-25, """J""")),
("""hartree-kelvin relationship""", ( 315775.04, 0.29, """K""")),
("""hartree-kilogram relationship""", ( 4.85086979E-35, 2.1E-42, """kg""")),
("""helion-electron mass ratio""", ( 5495.88527540, 5.0E-6, """""")),
("""helion g factor""", ( -4.255250613, 5.0E-8, """""")),
("""helion mag. mom.""", ( -1.074617486E-26, 2.7E-34, """J T^-1""")),
("""helion mag. mom. to Bohr magneton ratio""", ( -0.001158740958, 1.4E-11, """""")),
("""helion mag. mom. to nuclear magneton ratio""", ( -2.127625306, 2.5E-8, """""")),
("""helion mass""", ( 5.00641234E-27, 2.2E-34, """kg""")),
("""helion mass energy equivalent""", ( 4.49953902E-10, 2.0E-17, """J""")),
("""helion mass energy equivalent in MeV""", ( 2808.391482, 0.000062, """MeV""")),
("""helion mass in u""", ( 3.01493224680, 2.5E-9, """u""")),
("""helion molar mass""", ( 0.00301493224680, 2.5E-12, """kg mol^-1""")),
("""helion-proton mass ratio""", ( 2.99315267070, 2.5E-9, """""")),
("""hertz-atomic mass unit relationship""", ( 4.4398216689E-24, 3.1E-33, """u""")),
("""hertz-electron volt relationship""", ( 4.135667516E-15, 9.1E-23, """eV""")),
("""hertz-hartree relationship""", ( 1.5198298460045E-16, 7.6E-28, """E_h""")),
("""hertz-inverse meter relationship""", ( 3.335640951E-9, 0d, """m^-1""")),
("""hertz-joule relationship""", ( 6.62606957E-34, 2.9E-41, """J""")),
("""hertz-kelvin relationship""", ( 4.7992434E-11, 4.4E-17, """K""")),
("""hertz-kilogram relationship""", ( 7.37249668E-51, 3.3E-58, """kg""")),
("""inverse fine-structure constant""", ( 137.035999074, 4.4E-8, """""")),
("""inverse meter-atomic mass unit relationship""", ( 1.3310250512E-15, 9.4E-25, """u""")),
("""inverse meter-electron volt relationship""", ( 1.23984193E-6, 2.7E-14, """eV""")),
("""inverse meter-hartree relationship""", ( 4.556335252755E-8, 2.3E-19, """E_h""")),
("""inverse meter-hertz relationship""", ( 2.99792458E8, 0d, """Hz""")),
("""inverse meter-joule relationship""", ( 1.986445684E-25, 8.8E-33, """J""")),
("""inverse meter-kelvin relationship""", ( 0.014387770, 1.3E-8, """K""")),
("""inverse meter-kilogram relationship""", ( 2.210218902E-42, 9.8E-50, """kg""")),
("""inverse of conductance quantum""", ( 12906.4037217, 4.2E-6, """ohm""")),
("""Josephson constant""", ( 4.8359787E14, 1.1E7, """Hz V^-1""")),
("""joule-atomic mass unit relationship""", ( 6.70053585E9, 300.0, """u""")),
("""joule-electron volt relationship""", ( 6.24150934E18, 1.4E11, """eV""")),
("""joule-hartree relationship""", ( 2.29371248E17, 1.0E10, """E_h""")),
("""joule-hertz relationship""", ( 1.509190311E33, 6.7E25, """Hz""")),
("""joule-inverse meter relationship""", ( 5.03411701E24, 2.2E17, """m^-1""")),
("""joule-kelvin relationship""", ( 7.2429716E22, 6.6E16, """K""")),
("""joule-kilogram relationship""", ( 1.112650056E-17, 0d, """kg""")),
("""kelvin-atomic mass unit relationship""", ( 9.2510868E-14, 8.4E-20, """u""")),
("""kelvin-electron volt relationship""", ( 0.000086173324, 7.8E-11, """eV""")),
("""kelvin-hartree relationship""", ( 3.1668114E-6, 2.9E-12, """E_h""")),
("""kelvin-hertz relationship""", ( 2.0836618E10, 19000.0, """Hz""")),
("""kelvin-inverse meter relationship""", ( 69.503476, 0.000063, """m^-1""")),
("""kelvin-joule relationship""", ( 1.3806488E-23, 1.3E-29, """J""")),
("""kelvin-kilogram relationship""", ( 1.536179E-40, 1.4E-46, """kg""")),
("""kilogram-atomic mass unit relationship""", ( 6.02214129E26, 2.7E19, """u""")),
("""kilogram-electron volt relationship""", ( 5.60958885E35, 1.2E28, """eV""")),
("""kilogram-hartree relationship""", ( 2.061485968E34, 9.1E26, """E_h""")),
("""kilogram-hertz relationship""", ( 1.356392608E50, 6.0E42, """Hz""")),
("""kilogram-inverse meter relationship""", ( 4.52443873E41, 2.0E34, """m^-1""")),
("""kilogram-joule relationship""", ( 8.987551787E16, 0d, """J""")),
("""kilogram-kelvin relationship""", ( 6.5096582E39, 5.9E33, """K""")),
("""lattice parameter of silicon""", ( 5.431020504E-10, 8.9E-18, """m""")),
("""Loschmidt constant (273.15 K, 100 kPa)""", ( 2.6516462E25, 2.4E19, """m^-3""")),
("""Loschmidt constant (273.15 K, 101.325 kPa)""", ( 2.6867805E25, 2.4E19, """m^-3""")),
("""mag. constant""", ( 1.2566370614E-6, 0d, """N A^-2""")),
("""mag. flux quantum""", ( 2.067833758E-15, 4.6E-23, """Wb""")),
("""molar gas constant""", ( 8.3144621, 7.5E-6, """J mol^-1 K^-1""")),
("""molar mass constant""", ( 0.0010, 0d, """kg mol^-1""")),
("""molar mass of carbon-12""", ( 0.012, 0d, """kg mol^-1""")),
("""molar Planck constant""", ( 3.9903127176E-10, 2.8E-19, """J s mol^-1""")),
("""molar Planck constant times c""", ( 0.119626565779, 8.4E-11, """J m mol^-1""")),
("""molar volume of ideal gas (273.15 K, 100 kPa)""", ( 0.022710953, 2.1E-8, """m^3 mol^-1""")),
("""molar volume of ideal gas (273.15 K, 101.325 kPa)""", ( 0.022413968, 2.0E-8, """m^3 mol^-1""")),
("""molar volume of silicon""", ( 0.00001205883301, 8.0E-13, """m^3 mol^-1""")),
("""Mo x unit""", ( 1.00209952E-13, 5.3E-20, """m""")),
("""muon Compton wavelength""", ( 1.173444103E-14, 3.0E-22, """m""")),
("""muon Compton wavelength over 2 pi""", ( 1.867594294E-15, 4.7E-23, """m""")),
("""muon-electron mass ratio""", ( 206.7682843, 5.2E-6, """""")),
("""muon g factor""", ( -2.00233184180, 1.3E-9, """""")),
("""muon mag. mom.""", ( -4.49044807E-26, 1.5E-33, """J T^-1""")),
("""muon mag. mom. anomaly""", ( 0.001165920910, 6.3E-10, """""")),
("""muon mag. mom. to Bohr magneton ratio""", ( -0.004841970440, 1.2E-10, """""")),
("""muon mag. mom. to nuclear magneton ratio""", ( -8.890596970, 2.2E-7, """""")),
("""muon mass""", ( 1.883531475E-28, 9.6E-36, """kg""")),
("""muon mass energy equivalent""", ( 1.692833667E-11, 8.6E-19, """J""")),
("""muon mass energy equivalent in MeV""", ( 105.6583715, 3.5E-6, """MeV""")),
("""muon mass in u""", ( 0.1134289267, 2.9E-9, """u""")),
("""muon molar mass""", ( 0.0001134289267, 2.9E-12, """kg mol^-1""")),
("""muon-neutron mass ratio""", ( 0.1124545177, 2.8E-9, """""")),
("""muon-proton mag. mom. ratio""", ( -3.183345107, 8.4E-8, """""")),
("""muon-proton mass ratio""", ( 0.1126095272, 2.8E-9, """""")),
("""muon-tau mass ratio""", ( 0.0594649, 5.4E-6, """""")),
("""natural unit of action""", ( 1.054571726E-34, 4.7E-42, """J s""")),
("""natural unit of action in eV s""", ( 6.58211928E-16, 1.5E-23, """eV s""")),
("""natural unit of energy""", ( 8.18710506E-14, 3.6E-21, """J""")),
("""natural unit of energy in MeV""", ( 0.5109989280, 1.1E-8, """MeV""")),
("""natural unit of length""", ( 3.86159268E-13, 2.5E-22, """m""")),
("""natural unit of mass""", ( 9.10938291E-31, 4.0E-38, """kg""")),
("""natural unit of mom.um""", ( 2.73092429E-22, 1.2E-29, """kg m s^-1""")),
("""natural unit of mom.um in MeV/c""", ( 0.5109989280, 1.1E-8, """MeV/c""")),
("""natural unit of time""", ( 1.28808866833E-21, 8.3E-31, """s""")),
("""natural unit of velocity""", ( 2.99792458E8, 0d, """m s^-1""")),
("""neutron Compton wavelength""", ( 1.3195909068E-15, 1.1E-24, """m""")),
("""neutron Compton wavelength over 2 pi""", ( 2.1001941568E-16, 1.7E-25, """m""")),
("""neutron-electron mag. mom. ratio""", ( 0.001040668820, 2.5E-10, """""")),
("""neutron-electron mass ratio""", ( 1838.68366050, 1.1E-6, """""")),
("""neutron g factor""", ( -3.826085450, 9.0E-7, """""")),
("""neutron gyromag. ratio""", ( 1.83247179E8, 43.0, """s^-1 T^-1""")),
("""neutron gyromag. ratio over 2 pi""", ( 29.16469430, 6.9E-6, """MHz T^-1""")),
("""neutron mag. mom.""", ( -9.6623647E-27, 2.3E-33, """J T^-1""")),
("""neutron mag. mom. to Bohr magneton ratio""", ( -0.001041875630, 2.5E-10, """""")),
("""neutron mag. mom. to nuclear magneton ratio""", ( -1.913042720, 4.5E-7, """""")),
("""neutron mass""", ( 1.674927351E-27, 7.4E-35, """kg""")),
("""neutron mass energy equivalent""", ( 1.505349631E-10, 6.6E-18, """J""")),
("""neutron mass energy equivalent in MeV""", ( 939.5653790, 0.000021, """MeV""")),
("""neutron mass in u""", ( 1.008664916, 4.3E-10, """u""")),
("""neutron molar mass""", ( 0.001008664916, 4.3E-13, """kg mol^-1""")),
("""neutron-muon mass ratio""", ( 8.8924840, 2.2E-7, """""")),
("""neutron-proton mag. mom. ratio""", ( -0.68497934, 1.6E-7, """""")),
("""neutron-proton mass difference""", ( 2.30557392E-30, 7.6E-37, """""")),
("""neutron-proton mass difference energy equivalent""", ( 2.0721465E-13, 6.8E-20, """""")),
("""neutron-proton mass difference energy equivalent in MeV""", ( 1.293332170, 4.2E-7, """""")),
("""neutron-proton mass difference in u""", ( 0.001388449190, 4.5E-10, """""")),
("""neutron-proton mass ratio""", ( 1.00137841917, 4.5E-10, """""")),
("""neutron-tau mass ratio""", ( 0.528790, 0.000048, """""")),
("""neutron to shielded proton mag. mom. ratio""", ( -0.68499694, 1.6E-7, """""")),
("""Newtonian constant of gravitation""", ( 6.67384E-11, 8.0E-15, """m^3 kg^-1 s^-2""")),
("""Newtonian constant of gravitation over h-bar c""", ( 6.70837E-39, 8.0E-43, """(GeV/c^2)^-2""")),
("""nuclear magneton""", ( 5.05078353E-27, 1.1E-34, """J T^-1""")),
("""nuclear magneton in eV/T""", ( 3.1524512605E-8, 2.2E-17, """eV T^-1""")),
("""nuclear magneton in inverse meters per tesla""", ( 0.02542623527, 5.6E-10, """m^-1 T^-1""")),
("""nuclear magneton in K/T""", ( 0.00036582682, 3.3E-10, """K T^-1""")),
("""nuclear magneton in MHz/T""", ( 7.622593570, 1.7E-7, """MHz T^-1""")),
("""Planck constant""", ( 6.62606957E-34, 2.9E-41, """J s""")),
("""Planck constant in eV s""", ( 4.135667516E-15, 9.1E-23, """eV s""")),
("""Planck constant over 2 pi""", ( 1.054571726E-34, 4.7E-42, """J s""")),
("""Planck constant over 2 pi in eV s""", ( 6.58211928E-16, 1.5E-23, """eV s""")),
("""Planck constant over 2 pi times c in MeV fm""", ( 197.3269718, 4.4E-6, """MeV fm""")),
("""Planck length""", ( 1.616199E-35, 9.7E-40, """m""")),
("""Planck mass""", ( 2.17651E-8, 1.3E-12, """kg""")),
("""Planck mass energy equivalent in GeV""", ( 1.220932E19, 7.3E14, """GeV""")),
("""Planck temperature""", ( 1.416833E32, 8.5E27, """K""")),
("""Planck time""", ( 5.39106E-44, 3.2E-48, """s""")),
("""proton charge to mass quotient""", ( 9.57883358E7, 2.1, """C kg^-1""")),
("""proton Compton wavelength""", ( 1.32140985623E-15, 9.4E-25, """m""")),
("""proton Compton wavelength over 2 pi""", ( 2.1030891047E-16, 1.5E-25, """m""")),
("""proton-electron mass ratio""", ( 1836.15267245, 7.5E-7, """""")),
("""proton g factor""", ( 5.585694713, 4.6E-8, """""")),
("""proton gyromag. ratio""", ( 2.675222005E8, 6.3, """s^-1 T^-1""")),
("""proton gyromag. ratio over 2 pi""", ( 42.57748060, 1.0E-6, """MHz T^-1""")),
("""proton mag. mom.""", ( 1.410606743E-26, 3.3E-34, """J T^-1""")),
("""proton mag. mom. to Bohr magneton ratio""", ( 0.001521032210, 1.2E-11, """""")),
("""proton mag. mom. to nuclear magneton ratio""", ( 2.792847356, 2.3E-8, """""")),
("""proton mag. shielding correction""", ( 0.0000256940, 1.4E-8, """""")),
("""proton mass""", ( 1.672621777E-27, 7.4E-35, """kg""")),
("""proton mass energy equivalent""", ( 1.503277484E-10, 6.6E-18, """J""")),
("""proton mass energy equivalent in MeV""", ( 938.2720460, 0.000021, """MeV""")),
("""proton mass in u""", ( 1.0072764668120, 9.0E-11, """u""")),
("""proton molar mass""", ( 0.0010072764668120, 9.0E-14, """kg mol^-1""")),
("""proton-muon mass ratio""", ( 8.880243310, 2.2E-7, """""")),
("""proton-neutron mag. mom. ratio""", ( -1.459898060, 3.4E-7, """""")),
("""proton-neutron mass ratio""", ( 0.998623478260, 4.5E-10, """""")),
("""proton rms charge radius""", ( 8.7750E-16, 5.1E-18, """m""")),
("""proton-tau mass ratio""", ( 0.528063, 0.000048, """""")),
("""quantum of circulation""", ( 0.0003636947552, 2.4E-13, """m^2 s^-1""")),
("""quantum of circulation times 2""", ( 0.0007273895104, 4.7E-13, """m^2 s^-1""")),
("""Rydberg constant""", ( 1.0973731568539E7, 0.000055, """m^-1""")),
("""Rydberg constant times c in Hz""", ( 3.289841960364E15, 17000.0, """Hz""")),
("""Rydberg constant times hc in eV""", ( 13.60569253, 3.0E-7, """eV""")),
("""Rydberg constant times hc in J""", ( 2.179872171E-18, 9.6E-26, """J""")),
("""Sackur-Tetrode constant (1 K, 100 kPa)""", ( -1.1517078, 2.3E-6, """""")),
("""Sackur-Tetrode constant (1 K, 101.325 kPa)""", ( -1.1648708, 2.3E-6, """""")),
("""second radiation constant""", ( 0.014387770, 1.3E-8, """m K""")),
("""shielded helion gyromag. ratio""", ( 2.037894659E8, 5.1, """s^-1 T^-1""")),
("""shielded helion gyromag. ratio over 2 pi""", ( 32.43410084, 8.1E-7, """MHz T^-1""")),
("""shielded helion mag. mom.""", ( -1.074553044E-26, 2.7E-34, """J T^-1""")),
("""shielded helion mag. mom. to Bohr magneton ratio""", ( -0.001158671471, 1.4E-11, """""")),
("""shielded helion mag. mom. to nuclear magneton ratio""", ( -2.127497718, 2.5E-8, """""")),
("""shielded helion to proton mag. mom. ratio""", ( -0.7617665580, 1.1E-8, """""")),
("""shielded helion to shielded proton mag. mom. ratio""", ( -0.7617861313, 3.3E-9, """""")),
("""shielded proton gyromag. ratio""", ( 2.675153268E8, 6.6, """s^-1 T^-1""")),
("""shielded proton gyromag. ratio over 2 pi""", ( 42.57638660, 1.0E-6, """MHz T^-1""")),
("""shielded proton mag. mom.""", ( 1.410570499E-26, 3.5E-34, """J T^-1""")),
("""shielded proton mag. mom. to Bohr magneton ratio""", ( 0.001520993128, 1.7E-11, """""")),
("""shielded proton mag. mom. to nuclear magneton ratio""", ( 2.792775598, 3.0E-8, """""")),
("""speed of light in vacuum""", ( 2.99792458E8, 0d, """m s^-1""")),
("""standard acceleration of gravity""", ( 9.80665, 0d, """m s^-2""")),
("""standard atmosphere""", ( 101325.0, 0d, """Pa""")),
("""standard-state pressure""", ( 100000.0, 0d, """Pa""")),
("""Stefan-Boltzmann constant""", ( 5.670373E-8, 2.1E-13, """W m^-2 K^-4""")),
("""tau Compton wavelength""", ( 6.97787E-16, 6.3E-20, """m""")),
("""tau Compton wavelength over 2 pi""", ( 1.11056E-16, 1.0E-20, """m""")),
("""tau-electron mass ratio""", ( 3477.15, 0.31, """""")),
("""tau mass""", ( 3.16747E-27, 2.9E-31, """kg""")),
("""tau mass energy equivalent""", ( 2.84678E-10, 2.6E-14, """J""")),
("""tau mass energy equivalent in MeV""", ( 1776.82, 0.16, """MeV""")),
("""tau mass in u""", ( 1.90749, 0.00017, """u""")),
("""tau molar mass""", ( 0.00190749, 1.7E-7, """kg mol^-1""")),
("""tau-muon mass ratio""", ( 16.8167, 0.0015, """""")),
("""tau-neutron mass ratio""", ( 1.89111, 0.00017, """""")),
("""tau-proton mass ratio""", ( 1.89372, 0.00017, """""")),
("""Thomson cross section""", ( 6.652458734E-29, 1.3E-37, """m^2""")),
("""triton-electron mass ratio""", ( 5496.92152670, 5.0E-6, """""")),
("""triton g factor""", ( 5.957924896, 7.6E-8, """""")),
("""triton mag. mom.""", ( 1.504609447E-26, 3.8E-34, """J T^-1""")),
("""triton mag. mom. to Bohr magneton ratio""", ( 0.001622393657, 2.1E-11, """""")),
("""triton mag. mom. to nuclear magneton ratio""", ( 2.978962448, 3.8E-8, """""")),
("""triton mass""", ( 5.0073563E-27, 2.2E-34, """kg""")),
("""triton mass energy equivalent""", ( 4.50038741E-10, 2.0E-17, """J""")),
("""triton mass energy equivalent in MeV""", ( 2808.921005, 0.000062, """MeV""")),
("""triton mass in u""", ( 3.01550071340, 2.5E-9, """u""")),
("""triton molar mass""", ( 0.00301550071340, 2.5E-12, """kg mol^-1""")),
("""triton-proton mass ratio""", ( 2.99371703080, 2.5E-9, """""")),
("""unified atomic mass unit""", ( 1.660538921E-27, 7.3E-35, """kg""")),
("""von Klitzing constant""", ( 25812.8074434, 8.4E-6, """ohm""")),
("""weak mixing angle""", ( 0.2223, 0.0021, """""")),
("""Wien frequency displacement law constant""", ( 5.8789254E10, 53000.0, """Hz K^-1""")),
("""Wien wavelength displacement law constant""", ( 0.0028977721, 2.6E-9, """m K"""))
)
//
}
