Georges Sagnac

French physicist who lent his name to the sagnac effect.

Born October 14th, 1869 in Périgueux. [ref]

Died February 26th, 1928 at 58 years old in Meudon.

Occupations
physicist, university teacher
Wikipedia

A normal human being does not want the Kingdom of Heaven: he wants life on earth to continue. George Orwell