from typing import Final

PI: Final[float] = 3.1415926535
E: Final[float] = 2.7182818284
GRAVITY: Final[float] = 9.80665  # m/s^2
SPEED_OF_LIGHT: Final[int] = 299792458  # m/s
PLANCK_CONSTANT: Final[float] = 6.62607015e-34  # Js
BOLTZMANN_CONSTANT: Final[float] = 1.380649e-23  # J/K
AVOGADRO_NUMBER: Final[float] = 6.02214076e23  # 1/mol
GAS_CONSTANT: Final[float] = 8.314462618  # J/(mol·K)
GOLDEN_RATIO: Final[float] = 1.6180339887
INFINITE: Final[float] = float('inf')
NAN: Final[float] = float('nan')