Dear physics gurus, A couple of years ago I saw a TV program on physics, in it there was an classical physics experiment they recreated. The experiment was roughly like this: A horse rider holds a stone in his hand and the horse he is riding goes at full speed. The rider drops the stone. Where does the stone hit the ground? Do you know who originally performed this experiment and what it is called. If you have a link with info about it would be much appriciated. Thanks!