Lu,. .Perhaps you could ask your French Canadian neighbours wife to spin for you in a short skirt so that you dont feel like 71 anymore! . . <img border="0" title="" alt="[Big Grin]" src="biggrin.gif" /> Mind you, how would you keep your eyes on the object?. .. .You are right according to my results - the object does not fly outwards at all, it flys tangentially. Thus David would need to release the rock when the giant was in line with the tangent, ie when the rock is to the side of David (assuming a horizontal rotation - oval or not is irrelevant).