from scipy from constants

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print(constants.gram)

print(constants.atomic_mass)

print(constants.degree)

print(constants.minute)

print(constants.day)

print(constants.inch)

print(constants.micron)

print(constants.light_year)

print(constants.atm)

print(constants.acre)

print(constants.liter)

print(constants.gallon)

print(constants.kmh)

print(constants.degree_Fahrenheit)

print(constants.eV)

print(constants.hp)

print(constants.dyn)

print(constants.lambda2nu(constants.speed_of_light))