Free Fall Tube

Free Fall Tube 

Gelsonlab HSPD-016 Laboratory Free Fall Tube, Newton Tube for Newton Experiment                                                                    

Free Fall Tube is an economical version of a classic device!Demonstrates that all all objects experience the same gravitational acceleration in a vacuum, but that in air, the air resistance slows down some objects more that others. Features a disc and a feather in a durable,clear plastic tube, 90cm long and 4.5cm wide, with rubber end caps and hose cock for connection to any standard vacuum pump(not included)