Crate yatrosci_constants 

scirs-constants

Physical constants based on CODATA 2018 recommended values.

Referencias

• Tiesinga, E., Mohr, P. J., Newell, D. B., & Taylor, B. N. (2021). CODATA recommended values of the fundamental physical constants: 2018. Reviews of Modern Physics, 93(2), 025010. DOI: 10.1103/RevModPhys.93.025010

This crate provides fundamental physical constants with their exact values and uncertainties as defined by the Committee on Data for Science and Technology (CODATA) 2018 adjustment.

Usage

use yatrosci_constants::{SPEED_OF_LIGHT, PLANCK_CONSTANT, BOLTZMANN_CONSTANT};

// Speed of light in vacuum
let c = SPEED_OF_LIGHT;

// Planck constant
let h = PLANCK_CONSTANT;

// Calculate photon energy: E = hf
let frequency = 5e14; // Hz (visible light)
let energy = h * frequency;

Categories

Constants are organized into modules:

• universal - Universal constants (c, G, h, etc.)
• electromagnetic - Electromagnetic constants (e, mu_0, epsilon_0, etc.)
• atomic - Atomic and nuclear constants (m_e, m_p, a_0, etc.)
• physico_chemical - Physico-chemical constants (N_A, k_B, R, etc.)
• adopted - Adopted values and conversion factors

Uncertainties

For constants with uncertainties, companion _UNCERTAINTY constants are provided:

use yatrosci_constants::{GRAVITATIONAL_CONSTANT, GRAVITATIONAL_CONSTANT_UNCERTAINTY};

let g = GRAVITATIONAL_CONSTANT;
let delta_g = GRAVITATIONAL_CONSTANT_UNCERTAINTY;

Re-exports

pub use universal::GRAVITATIONAL_CONSTANT;

pub use universal::GRAVITATIONAL_CONSTANT_UNCERTAINTY;

pub use universal::HBAR;

pub use universal::PLANCK_CONSTANT;

pub use universal::REDUCED_PLANCK_CONSTANT;

pub use universal::SPEED_OF_LIGHT;

pub use universal::SPEED_OF_LIGHT_VACUUM;

pub use electromagnetic::CONDUCTANCE_QUANTUM;

pub use electromagnetic::COULOMB_CONSTANT;

pub use electromagnetic::ELEMENTARY_CHARGE;

pub use electromagnetic::EPSILON_0;

pub use electromagnetic::IMPEDANCE_OF_FREE_SPACE;

pub use electromagnetic::MAGNETIC_FLUX_QUANTUM;

pub use electromagnetic::MU_0;

pub use electromagnetic::VACUUM_PERMEABILITY;

pub use electromagnetic::VACUUM_PERMITTIVITY;

pub use electromagnetic::VON_KLITZING_CONSTANT;

pub use atomic::ALPHA;

pub use atomic::ATOMIC_MASS_CONSTANT;

pub use atomic::BOHR_MAGNETON;

pub use atomic::BOHR_RADIUS;

pub use atomic::ELECTRON_G_FACTOR;

pub use atomic::ELECTRON_MASS;

pub use atomic::FINE_STRUCTURE_CONSTANT;

pub use atomic::NEUTRON_MASS;

pub use atomic::NUCLEAR_MAGNETON;

pub use atomic::PROTON_MASS;

pub use atomic::RYDBERG_CONSTANT;

pub use physico_chemical::AVOGADRO_CONSTANT;

pub use physico_chemical::BOLTZMANN_CONSTANT;

pub use physico_chemical::FARADAY_CONSTANT;

pub use physico_chemical::FIRST_RADIATION_CONSTANT;

pub use physico_chemical::GAS_CONSTANT;

pub use physico_chemical::LOSCHMIDT_CONSTANT;

pub use physico_chemical::MOLAR_GAS_CONSTANT;

pub use physico_chemical::SECOND_RADIATION_CONSTANT;

pub use physico_chemical::STEFAN_BOLTZMANN_CONSTANT;

pub use physico_chemical::WIEN_DISPLACEMENT_CONSTANT;

pub use adopted::ANGSTROM;

pub use adopted::ASTRONOMICAL_UNIT;

pub use adopted::ELECTRONVOLT;

pub use adopted::LIGHT_YEAR;

pub use adopted::MOLAR_VOLUME_IDEAL_GAS_NTP;

pub use adopted::MOLAR_VOLUME_IDEAL_GAS_STP;

pub use adopted::PARSEC;

pub use adopted::STANDARD_ATMOSPHERE;

pub use adopted::STANDARD_GRAVITY;

pub use adopted::STANDARD_STATE_PRESSURE;

pub use adopted::UNIFIED_ATOMIC_MASS_UNIT;

pub use conversions::convert_temperature;

pub use conversions::convert_temperature_str;

pub use conversions::physical_constants;

pub use conversions::ConstantEntry;

pub use conversions::TempScale;

pub use conversions::BTU;

pub use conversions::CALORIE;

pub use conversions::FOOT;

pub use conversions::HORSEPOWER;

pub use conversions::INCH;

pub use conversions::MILE;

pub use conversions::NAUTICAL_MILE;

pub use conversions::OUNCE;

pub use conversions::POUND;

pub use conversions::PSI;

pub use conversions::YARD;

Modules

adopted

Adopted values and conversion factors (CODATA 2018)

atomic

Atomic and nuclear constants (CODATA 2018)

conversions

Temperature conversions and physical_constants dict API. Unit conversion utilities and the physical_constants dictionary.

electromagnetic

Electromagnetic constants (CODATA 2018)

math

Mathematical constants used in physics calculations

physico_chemical

Physico-chemical constants (CODATA 2018)

universal

Universal physical constants (CODATA 2018)