Use a vacuum tube with a quarter and a Styrofoam peanut. While the tube still has air,
hold it vertically and flip it 180° . The quarter will fall
faster than the Styrofoam peanut. Pump the air out of the tube. This time when you flip
the tube over, the peanut will fall just as fast as the quarter. Dont use a penny,
nickel, or dime it gets stuck in the stopper.