# Physical constants gn = 9.80665 c = 299792458.0 G = 6.67408E-11 h = 6.626070040E-34 mu0 = 1.256637061E-6 epsilon0 = 8.854187817E-12 e = 1.6021766208E-19 me = 9.10938356E-31 mp = 1.672621898E-27 mu = 1.660539040E-27 NA = 6.022140857E23 kB = 1.38064852E-23 R = 8.3144598