Dave Scott: In my left hand I have a feather, and in my right hand, a hammer. I guess one of the reasons we got here to day was because of a gentleman named Gallileo a long time ago, who made a rather significant discovery about falling objects and gravity fields ... I'll drop the two of them here, and hopefully, they'll hit the ground at the same time. (drops feather and hammer, which reach the ground simultaneously) How 'bout that? That proves that Mr. Galileo was correct in his findings.