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Guinea and Feather Tube.

$41.00
AvailabilityIn stock
SKU
611-2350
This counter-intuitive experiment has to be seen to be believed. Galileo used the traditional guinea (coin) and feather to show how items fall at the same rate in a vacuum despite their relative weights and sizes. Includes 81 cm plastic tube for safety; 2 rubber caps, one with hose cock and hose for evacuating the tube; weight set; instructions. You need a vacuum pump, not included (electric pump preferred).
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