The foucoult pendulum proves 100% that the Earth rotates. This pendulum can be observed throughout many science museums around the world, as well as can be done by anyone at home using some very basic items. If you doubt the Foucoult pendulum, all the documentation and every youtube video about it, and think every museum and observatory with the pendulum is fake, and if you got off the computer and off your ass, you can demonstrate this at home enough, to observe the Earth's rotation.