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Guinea and Feather Tube - Demonstration Kit

by Flinn Scientific

Item #: AP4670

Price: $87.95

In the Guinea and Feather Tube Demonstration for physical science and physics, watch and compare the falling acceleration rate of a feather and a guinea (coin) with air resistance and in a vacuum.

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Product Details

Objects fall with the same acceleration-don't they? Watch and compare the falling acceleration rate of a feather and a guinea (coin) with air resistance and in a vacuum using this clear acrylic demonstration tube. The results are unforgettable! The stopcock valve on one end of the device allows you to evacuate the tube of air with a vacuum pump. You may also use the tube to create a vacuum fountain by opening the valve under water after the tube has been evacuated. Note: Vacuum pump and vacuum tubing are required but not included. A two- stage vacuum pump is recommended for the most dramatic results.