Chris@16: // Boost.Units - A C++ library for zero-overhead dimensional analysis and Chris@16: // unit/quantity manipulation and conversion Chris@16: // Chris@16: // Copyright (C) 2003-2008 Matthias Christian Schabel Chris@16: // Copyright (C) 2008 Steven Watanabe Chris@16: // Chris@16: // Distributed under the Boost Software License, Version 1.0. (See Chris@16: // accompanying file LICENSE_1_0.txt or copy at Chris@16: // http://www.boost.org/LICENSE_1_0.txt) Chris@16: Chris@16: #ifndef BOOST_UNITS_CODATA_UNIVERSAL_CONSTANTS_HPP Chris@16: #define BOOST_UNITS_CODATA_UNIVERSAL_CONSTANTS_HPP Chris@16: Chris@101: #include Chris@16: #include Chris@16: Chris@16: #include Chris@16: #include Chris@16: #include Chris@16: #include Chris@16: #include Chris@16: #include Chris@16: #include Chris@16: #include Chris@16: #include Chris@16: #include Chris@16: #include Chris@16: #include Chris@16: #include Chris@16: Chris@16: /// \file Chris@16: /// CODATA recommended values of fundamental universal constants Chris@16: /// using CODATA 2006 values as of 2007/03/30 Chris@16: Chris@16: namespace boost { Chris@16: Chris@16: namespace units { Chris@16: Chris@16: namespace si { Chris@16: Chris@16: namespace constants { Chris@16: Chris@16: namespace codata { Chris@16: Chris@16: /// CODATA recommended values of the fundamental physical constants: NIST SP 961 Chris@16: Chris@16: // UNIVERSAL Chris@16: /// speed of light Chris@16: BOOST_UNITS_PHYSICAL_CONSTANT(c,quantity,299792458.0*meters/second,0.0*meters/second); Chris@16: /// magnetic constant (exactly 4 pi x 10^(-7) - error is due to finite precision of pi) Chris@16: BOOST_UNITS_PHYSICAL_CONSTANT(mu_0,quantity,12.56637061435917295385057353311801153679e-7*newtons/ampere/ampere,0.0*newtons/ampere/ampere); Chris@16: /// electric constant Chris@16: BOOST_UNITS_PHYSICAL_CONSTANT(epsilon_0,quantity,8.854187817620389850536563031710750260608e-12*farad/meter,0.0*farad/meter); Chris@16: /// characteristic impedance of vacuum Chris@16: BOOST_UNITS_PHYSICAL_CONSTANT(Z_0,quantity,376.7303134617706554681984004203193082686*ohm,0.0*ohm); Chris@16: /// Newtonian constant of gravitation Chris@16: BOOST_UNITS_PHYSICAL_CONSTANT(G,quantity,6.67428e-11*cubic_meters/kilogram/second/second,6.7e-15*cubic_meters/kilogram/second/second); Chris@16: /// Planck constant Chris@16: BOOST_UNITS_PHYSICAL_CONSTANT(h,quantity,6.62606896e-34*joule*seconds,3.3e-41*joule*seconds); Chris@16: /// Dirac constant Chris@16: BOOST_UNITS_PHYSICAL_CONSTANT(hbar,quantity,1.054571628e-34*joule*seconds,5.3e-42*joule*seconds); Chris@16: /// Planck mass Chris@16: BOOST_UNITS_PHYSICAL_CONSTANT(m_P,quantity,2.17644e-8*kilograms,1.1e-12*kilograms); Chris@16: /// Planck temperature Chris@16: BOOST_UNITS_PHYSICAL_CONSTANT(T_P,quantity,1.416785e32*kelvin,7.1e27*kelvin); Chris@16: /// Planck length Chris@16: BOOST_UNITS_PHYSICAL_CONSTANT(l_P,quantity,1.616252e-35*meters,8.1e-40*meters); Chris@16: /// Planck time Chris@16: BOOST_UNITS_PHYSICAL_CONSTANT(t_P,quantity