A replica of Foucault's famous experiment at the Museo Nazionale della Scienza e Tecnica in Milan, Italy Wikimedia Commons On February 3, 1851, a 32-year-old Frenchman—who’d dropped out of medical ...
Earth's Rotation Day commemorates the significant discovery by French Physicist Leon Foucault. In 1851, Foucault proved that Earth rotates on its axis, using a swinging pendulum famously called ...