YOU4418696: Bust of Leon Foucault (1819-1868), a French physicist, astronomer, known for his experience at the Pantheon in 1851, demonstrating the rotation of the Earth around its axis using the Foucault pendulum, he also determined the speed of light and invented the gyroscope, Sculpture by Charles Garnier (1825-1898), installed on the tomb of the physicist at cemetery Montmartre to Paris. Photography, KIM Youngtae, Paris., Garnier, Charles (1825-98) / Bridgeman Images