💿🐜 Antkeeper source code
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72 lines
2.1 KiB
72 lines
2.1 KiB
/*
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* Copyright (C) 2021 Christopher J. Howard
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*
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* This file is part of Antkeeper source code.
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*
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* Antkeeper source code is free software: you can redistribute it and/or modify
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* it under the terms of the GNU General Public License as published by
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* the Free Software Foundation, either version 3 of the License, or
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* (at your option) any later version.
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*
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* Antkeeper source code is distributed in the hope that it will be useful,
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* but WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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* GNU General Public License for more details.
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*
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* You should have received a copy of the GNU General Public License
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* along with Antkeeper source code. If not, see <http://www.gnu.org/licenses/>.
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*/
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#ifndef ANTKEEPER_PHYSICS_CONSTANTS_HPP
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#define ANTKEEPER_PHYSICS_CONSTANTS_HPP
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namespace physics {
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/// Physical constants
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namespace constants {
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/**
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* Boltzmann constant (k), in joule per kelvin.
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*
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* @see https://physics.nist.gov/cgi-bin/cuu/Value?k|search_for=universal_in!
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*/
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template <class T>
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constexpr T boltzmann = T(1.380649e-23);
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/**
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* Gravitational constant (G), in cubic meter per second squared per kilogram.
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*
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* @see https://physics.nist.gov/cgi-bin/cuu/Value?G|search_for=universal_in!
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*/
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template <class T>
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constexpr T gravitational = T(6.67430e-11);
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/**
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* Planck constant (h), in joule per hertz.
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*
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* @see https://physics.nist.gov/cgi-bin/cuu/Value?h|search_for=universal_in!
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*/
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template <class T>
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constexpr T planck = T(6.62607015e-34);
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/**
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* Stefan-Boltzmann constant (sigma), in watt per square meter kelvin to the fourth.
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*
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* @see https://en.wikipedia.org/wiki/Stefan%E2%80%93Boltzmann_constant
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*/
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template <class T>
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constexpr T stefan_boltzmann = T(5.67037441918442945397099673188923087584012297029130e-8);
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/**
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* Speed of light in vacuum (c), in meters per second.
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*
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* @see https://physics.nist.gov/cgi-bin/cuu/Value?c|search_for=universal_in!
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*/
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template <class T>
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constexpr T speed_of_light = T(299792458);
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} // namespace constant
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} // namespace physics
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#endif // ANTKEEPER_PHYSICS_CONSTANTS_HPP
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