Ginsberg Coin and Feather Apparatus with Plastic Tube
Ginsberg Coin and Feather Apparatus with Plastic Tube

Ginsberg Coin and Feather Apparatus with Plastic Tube

Ginsberg Coin and Feather Apparatus with Plastic Tube provides visual demonstration about air resistance. The cylinder is capped with a hard rubber closure at each end, and a hose connector at one end, which is used for air evacuation. When the tube is inverted, and the air is removed, the disc and feather will fall at the same rate because the feather does not meet any air resistance.

Item #DescPkgRewardPrice 
7-780 47" x 6" x 6" Each $1.95
$65.99
$38.99

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