//
// A rust binding for the GSL library by Guillaume Gomez (guillaume1.gomez@gmail.com)
//

/*! Physical Constants

This chapter describes macros for the values of physical constants, such as the speed of light, c, and gravitational constant, G. The
values are available in different unit systems, including the standard MKSA system (meters, kilograms, seconds, amperes) and the CGSM
system (centimeters, grams, seconds, gauss), which is commonly used in Astronomy.

## References and Further Reading

The authoritative sources for physical constants are the 2006 CODATA recommended values, published in the article below. Further
information on the values of physical constants is also available from the NIST website.

P.J. Mohr, B.N. Taylor, D.B. Newell, “CODATA Recommended Values of the Fundamental Physical Constants: 2006”, Reviews of Modern Physics,
80(2), pp. 633–730 (2008).

http://www.physics.nist.gov/cuu/Constants/index.html
http://physics.nist.gov/Pubs/SP811/appenB9.html
!*/

// Fundamental Constants
/// The speed of light in vacuum, c. m / s
pub static MKSA_SPEED_OF_LIGHT: f64 = 2.99792458e8;
/// The permeability of free space, \mu_0. This constant is defined in the MKSA system only.
/// `kg m / A^2 s^2`
pub static MKSA_VACUUM_PERMEABILITY: f64 = 1.25663706144e-6;
/// The permittivity of free space, \epsilon_0. This constant is defined in the MKSA system only.
/// `A^2 s^4 / kg m^3`
pub static MKSA_VACUUM_PERMITTIVITY: f64 = 8.854187817e-12;
/// Planck’s constant, h. kg m^2 / s
pub static MKSA_PLANCKS_CONSTANT_H: f64 = 6.62606896e-34;
/// Planck’s constant divided by 2\pi, \hbar. kg m^2 / s
pub static MKSA_PLANCKS_CONSTANT_HBAR: f64 = 1.05457162825e-34;
/// Avogadro’s number, N_a. 1 / mol
pub static NUM_AVOGADRO: f64 = 6.02214199e23;
/// The molar charge of 1 Faraday. A s / mol
pub static MKSA_FARADAY: f64 = 9.64853429775e4;
/// The Boltzmann constant, k. kg m^2 / K s^2
pub static MKSA_BOLTZMANN: f64 = 1.3806504e-23;
/// The molar gas constant, R_0. kg m^2 / K mol s^2
pub static MKSA_MOLAR_GAS: f64 = 8.314472e0;
/// The standard gas volume, V_0. m^3 / mol
pub static MKSA_STANDARD_GAS_VOLUME: f64 = 2.2710981e-2;
/// The Stefan-Boltzmann radiation constant, \sigma. kg / K^4 s^3
pub static MKSA_STEFAN_BOLTZMANN_CONSTANT: f64 = 5.67040047374e-8;
/// The magnetic field of 1 Gauss. kg / A s^2
pub static MKSA_GAUSS: f64 = 1e-4;

// Astronomy and Astrophysics
/// The length of 1 astronomical unit (mean earth-sun distance), au. m
pub static MKSA_ASTRONOMICAL_UNIT: f64 = 1.49597870691e11;
/// The gravitational constant, G. m^3 / kg s^2
pub static MKSA_GRAVITATIONAL_CONSTANT: f64 = 6.673e-11;
/// The distance of 1 light-year, ly. m
pub static MKSA_LIGHT_YEAR: f64 = 9.46053620707e15;
/// The distance of 1 parsec, pc. m
pub static MKSA_PARSEC: f64 = 3.08567758135e16;
/// The standard gravitational acceleration on Earth, g. m / s^2
pub static MKSA_GRAV_ACCEL: f64 = 9.80665e0;
/// The mass of the Sun. kg
pub static MKSA_SOLAR_MASS: f64 = 1.98892e30;

// Atomic and Nuclear Physics
/// The charge of the electron, e. A s
pub static MKSA_ELECTRON_CHARGE: f64 = 1.602176487e-19;
/// The energy of 1 electron volt, eV. kg m^2 / s^2
pub static MKSA_ELECTRON_VOLT: f64 = 1.602176487e-19;
/// The unified atomic mass, amu. kg
pub static MKSA_UNIFIED_ATOMIC_MASS: f64 = 1.660538782e-27;
/// The mass of the electron, m_e. kg
pub static MKSA_MASS_ELECTRON: f64 = 9.10938188e-31;
/// The mass of the muon, m_\mu. kg
pub static MKSA_MASS_MUON: f64 = 1.88353109e-28;
/// The mass of the proton, m_p. kg
pub static MKSA_MASS_PROTON: f64 = 1.67262158e-27;
/// The mass of the neutron, m_n. kg
pub static MKSA_MASS_NEUTRON: f64 = 1.67492716e-27;
/// The electromagnetic fine structure constant \alpha. 1
pub static NUM_FINE_STRUCTURE: f64 = 7.297352533e-3;
/// The Rydberg constant, Ry, in units of energy. This is related to the Rydberg inverse
/// wavelength `R_\infty by Ry = h c R_\infty. kg m^2 / s^2`
pub static MKSA_RYDBERG: f64 = 2.17987196968e-18;
/// The Bohr radius, a_0. m
pub static MKSA_BOHR_RADIUS: f64 = 5.291772083e-11;
/// The length of 1 angstrom. m
pub static MKSA_ANGSTROM: f64 = 1e-10;
/// The area of 1 barn. m^2
pub static MKSA_BARN: f64 = 1e-28;
/// The Bohr Magneton, \mu_B. A m^2
pub static MKSA_BOHR_MAGNETON: f64 = 9.27400899e-24;
/// The Nuclear Magneton, \mu_N. A m^2
pub static MKSA_NUCLEAR_MAGNETON: f64 = 5.05078317e-27;
/// The absolute value of the magnetic moment of the electron, \mu_e. The physical magnetic moment
/// of the electron is negative. A m^2
pub static MKSA_ELECTRON_MAGNETIC_MOMENT: f64 = 9.28476362e-24;
/// The magnetic moment of the proton, \mu_p. A m^2
pub static MKSA_PROTON_MAGNETIC_MOMENT: f64 = 1.410606633e-26;
/// The Thomson cross section, \sigma_T. m^2
pub static MKSA_THOMSON_CROSS_SECTION: f64 = 6.65245893699e-29;
/// The electric dipole moment of 1 Debye, D. A s^2 / m^2
pub static MKSA_DEBYE: f64 = 3.33564095198e-30;

// Measurement of Time
/// The number of seconds in 1 minute. s
pub static MKSA_MINUTE: f64 = 6e1f64;
/// The number of seconds in 1 hour. s
pub static MKSA_HOUR: f64 = 3.6e3f64;
/// The number of seconds in 1 day. s
pub static MKSA_DAY: f64 = 8.64e4f64;
/// The number of seconds in 1 week. s
pub static MKSA_WEEK: f64 = 6.048e5f64;

// Imperial Units
/// The length of 1 inch. m
pub static MKSA_INCH: f64 = 2.54e-2;
/// The length of 1 foot. m
pub static MKSA_FOOT: f64 = 3.048e-1;
/// The length of 1 yard. m
pub static MKSA_YARD: f64 = 9.144e-1;
/// The length of 1 mile. m
pub static MKSA_MILE: f64 = 1.609344e3;
/// The length of 1 mil (1/1000th of an inch). m
pub static MKSA_MIL: f64 = 2.54e-5;

// Speed and Nautical Units
/// The speed of 1 kilometer per hour. m / s
pub static MKSA_KILOMETERS_PER_HOUR: f64 = 2.77777777778e-1;
/// The speed of 1 mile per hour. m / s
pub static MKSA_MILES_PER_HOUR: f64 = 4.4704e-1;
/// The length of 1 nautical mile. m
pub static MKSA_NAUTICAL_MILE: f64 = 1.852e3;
/// The length of 1 fathom. m
pub static MKSA_FATHOM: f64 = 1.8288e0;
/// The speed of 1 knot. m / s
pub static MKSA_KNOT: f64 = 5.14444444444e-1;

// Printers Units
/// The length of 1 printer’s point (1/72 inch). m
pub static MKSA_POINT: f64 = 3.52777777778e-4;
/// The length of 1 TeX point (1/72.27 inch). m
pub static MKSA_TEXPOINT: f64 = 3.51459803515e-4;

// Volume, Area and Length
/// The length of 1 micron. m
pub static MKSA_MICRON: f64 = 1e-6;
/// The area of 1 hectare. m^2
pub static MKSA_HECTARE: f64 = 1e4;
/// The area of 1 acre. m^2
pub static MKSA_ACRE: f64 = 4.04685642241e3;
/// The volume of 1 liter. m^3
pub static MKSA_LITER: f64 = 1e-3;
/// The volume of 1 US gallon. m^3
pub static MKSA_US_GALLON: f64 = 3.78541178402e-3;
/// The volume of 1 Canadian gallon. m^3
pub static MKSA_CANADIAN_GALLON: f64 = 4.54609e-3;
/// The volume of 1 UK gallon. m^3
pub static MKSA_UK_GALLON: f64 = 4.546092e-3;
/// The volume of 1 quart. m^3
pub static MKSA_QUART: f64 = 9.46352946004e-4;
/// The volume of 1 pint. m^3
pub static MKSA_PINT: f64 = 4.73176473002e-4;
/// m^3
pub static MKSA_CUP: f64 = 2.36588236501e-4;

// Mass and Weight
/// The mass of 1 pound. kg
pub static MKSA_POUND_MASS: f64 = 4.5359237e-1;
/// The mass of 1 ounce. kg
pub static MKSA_OUNCE_MASS: f64 = 2.8349523125e-2;
/// The mass of 1 ton. kg
pub static MKSA_TON: f64 = 9.0718474e2;
/// The mass of 1 metric ton (1000 kg). kg
pub static MKSA_METRIC_TON: f64 = 1e3;
/// The mass of 1 UK ton. kg
pub static MKSA_UK_TON: f64 = 1.0160469088e3;
/// The mass of 1 troy ounce. kg
pub static MKSA_TROY_OUNCE: f64 = 3.1103475e-2;
/// The mass of 1 carat. kg
pub static MKSA_CARAT: f64 = 2e-4;
/// The force of 1 gram weight. kg m / s^2
pub static MKSA_GRAM_FORCE: f64 = 9.80665e-3;
/// The force of 1 pound weight. kg m / s^2
pub static MKSA_POUND_FORCE: f64 = 4.44822161526e0;
/// The force of 1 kilopound weight. kg m / s^2
pub static MKSA_KILOPOUND_FORCE: f64 = 4.44822161526e3;
/// The force of 1 poundal. kg m / s^2
pub static MKSA_POUNDAL: f64 = 1.38255e-1;

// Thermal Energy and Power
/// The energy of 1 calorie. kg m^2 / s^2
pub static MKSA_CALORIE: f64 = 4.1868e0;
/// The energy of 1 British Thermal Unit, btu. kg m^2 / s^2
pub static MKSA_BTU: f64 = 1.05505585262e3;
/// The energy of 1 Therm. kg m^2 / s^2
pub static MKSA_THERM: f64 = 1.05506e8;
/// The power of 1 horsepower. kg m^2 / s^3
pub static MKSA_HORSEPOWER: f64 = 7.457e2;

// Pressure
/// The pressure of 1 bar. kg / m s^2
pub static MKSA_BAR: f64 = 1e5;
/// The pressure of 1 standard atmosphere. kg / m s^2
pub static MKSA_STD_ATMOSPHERE: f64 = 1.01325e5;
/// The pressure of 1 torr. kg / m s^2
pub static MKSA_TORR: f64 = 1.33322368421e2;
/// The pressure of 1 meter of mercury. kg / m s^2
pub static MKSA_METER_OF_MERCURY: f64 = 1.33322368421e5;
/// The pressure of 1 inch of mercury. kg / m s^2
pub static MKSA_INCH_OF_MERCURY: f64 = 3.38638815789e3;
/// The pressure of 1 inch of water. kg / m s^2
pub static MKSA_INCH_OF_WATER: f64 = 2.490889e2;
/// The pressure of 1 pound per square inch. kg / m s^2
pub static MKSA_PSI: f64 = 6.89475729317e3;

// Viscosity
/// The dynamic viscosity of 1 poise. kg m^-1 s^-1
pub static MKSA_POISE: f64 = 1e-1;
/// The kinematic viscosity of 1 stokes. m^2 / s
pub static MKSA_STOKES: f64 = 1e-4;

// Light and Illumination
/// The luminance of 1 stilb. cd / m^2
pub static MKSA_STILB: f64 = 1e4;
/// The luminous flux of 1 lumen. cd sr
pub static MKSA_LUMEN: f64 = 1e0;
/// The illuminance of 1 lux. cd sr / m^2
pub static MKSA_LUX: f64 = 1e0;
/// The illuminance of 1 phot. cd sr / m^2
pub static MKSA_PHOT: f64 = 1e4;
/// The illuminance of 1 footcandle. cd sr / m^2
pub static MKSA_FOOTCANDLE: f64 = 1.076e1;
/// The luminance of 1 lambert. cd sr / m^2
pub static MKSA_LAMBERT: f64 = 1e4;
/// The luminance of 1 footlambert. cd sr / m^2
pub static MKSA_FOOTLAMBERT: f64 = 1.07639104e1;

// Radioactivity
/// The activity of 1 curie. 1 / s
pub static MKSA_CURIE: f64 = 3.7e10;
/// The exposure of 1 roentgen. A s / kg
pub static MKSA_ROENTGEN: f64 = 2.58e-4;
/// The absorbed dose of 1 rad. m^2 / s^2
pub static MKSA_RAD: f64 = 1e-2;

// Force and Energy
/// The SI unit of force, 1 Newton. kg m / s^2
pub static MKSA_NEWTON: f64 = 1e0;
/// The force of 1 Dyne = 10^-5 Newton. kg m / s^2
pub static MKSA_DYNE: f64 = 1e-5;
/// The SI unit of energy, 1 Joule. kg m^2 / s^2
pub static MKSA_JOULE: f64 = 1e0;
/// The energy 1 erg = 10^-7 Joule. kg m^2 / s^2
pub static MKSA_ERG: f64 = 1e-7;

// Prefixes : These constants are dimensionless scaling factors.
/// 10^24
pub static NUM_YOTTA: f64 = 1e24;
/// 10^21
pub static NUM_ZETTA: f64 = 1e21;
/// 10^18
pub static NUM_EXA: f64 = 1e18;
/// 10^15
pub static NUM_PETA: f64 = 1e15;
/// 10^12
pub static NUM_TERA: f64 = 1e12;
/// 10^9
pub static NUM_GIGA: f64 = 1e9;
/// 10^6
pub static NUM_MEGA: f64 = 1e6;
/// 10^3
pub static NUM_KILO: f64 = 1e3;
/// 10^-3
pub static NUM_MILLI: f64 = 1e-3;
/// 10^-6
pub static NUM_MICRO: f64 = 1e-6;
/// 10^-9
pub static NUM_NANO: f64 = 1e-9;
/// 10^-12
pub static NUM_PICO: f64 = 1e-12;
/// 10^-15
pub static NUM_FEMTO: f64 = 1e-15;
/// 10^-18
pub static NUM_ATTO: f64 = 1e-18;
/// 10^-21
pub static NUM_ZEPTO: f64 = 1e-21;
/// 10^-24
pub static NUM_YOCTO: f64 = 1e-24;