Coin and Feather Demo, This item is great for demonstrating that heavy and light objects fall at the same rate in a vacuum, Each

Details

It is made of a transparent tube with a 1.5 in. (38 mm) outer diameter and 40 in. (1000 mm) lengthTwo rubber end caps, one of which has a nozzle and stopcock with 14 in. (355 mm) rubber tubing for connecting to a vacuum pump (not included, catalog Item #6080-00)The demonstration provides an illustration of the principles of gravity that leaves a lasting impression on student