Galileo Drop Tubes: in a partial vacuum (left tube), paper confetti and balls of lead shot fall together and hit the bottom at the same time- as Galileo predicted some 400 years ago! The tube on the right has air at standard pressure, the left tube is at a partial vacuum similar to that of a light bulb. In slow motion one can see that the bits of paper fall at the same rate as lead shot when the effects of air resistance are reduced, showing that all objects fall with an acceleration of g=9.8 m/