This experiment demonstrates the fact that objects of different masses fall at the same rate in a vacuum. The plastic cylinder has rubber stopper closures on both ends, with one end having a hose connection that is used to evacuate air. When air in the tube is pumped out via a vacuum pump (not included), the coin and feather included with the kit will fall simultaneously because there is nothing causing resistance anymore in the tube.
We have vacuum pumps for sale separately both with and without a pressure gauge attachment.
This product contains small parts, making it a choking hazard. Use only with adult supervision.
Our products are not toys. Use in a laboratory or educational setting only. Not for children 13 and under.
California Proposition 65 Warning: This product may contain chemicals known to the State of California to cause cancer and birth defects or other reproductive harm.