The Foucault ... the pendulum and that the line of swing of the pendulum just appears to rotate. At the north pole the apparent rotation would be a full circle of 360 degrees each 24-hour day, or ...
Called a Foucault (pronounced “foo-KOH”) pendulum after its designer, French physicist Léon Foucault, the device was conceived in 1851 to demonstrate the rotation of the Earth. This pendulum ...