An economical version of a classic device! It demonstrates that all objects experience the same gravitational acceleration and fall at the same speed in a vacuum, but in air the air resistance slows down some objects more than others. Features a disc and a feather in a tough, clear, plastic tube, 90 CM long and 4.5 CM diameter, with rubber end caps and hose cock for connection to any standard vacuum pump (not included). Shipping weight: 1.6 Lbs., dimensions: 40" x 3" x 3".
This content is hosted by a third party (youtube.com). To view external content you must agree to cookies.