Earth Rotation

A man and his son were having their dinner on the dining table when the son looked into his father's food and saw that the meats there were much bigger than his.

Immediately, he said to the Father, "Dad, our teacher told us today that the earth rotates, he demonstrated it by rotating his father's food to where he was sitting."

His father, seeing what happened said to the son, "Nice one son, but didn't your teacher also tell you that the earth doesn't stop rotating, it keeps rotating..." and he demonstrated it by rotating his food to where it was before.