Question

State foucaults proof on earth's rotation.

Answer 1

yes this is right it earth stops there is a lot of problems

Answer 2

So, relative to Earth, the plane of oscillation of a pendulum at the North Pole – viewed from above – undergoes a full clockwise rotation during one day; a pendulum at the South Pole rotates counterclockwise. When a Foucault pendulum is suspended at the equator, the plane of oscillation remains fixed relative to Earth.