Video – The Apollo 15 Hammer-Feather Drop

At the end of the last Apollo 15 moon walk, on August 2, 1971, Commander David Scott performed a live demonstration for the television cameras. He held out a geologic hammer (1.32-kg ) and a falcon feather (between 0.3 – 3 grams) and dropped them at the same time from the same height (approx. 1,6 m). Because they were essentially in a vacuum, there was no air resistance and the feather fell at the same rate as the hammer, as Galileo had concluded hundreds of years before – all objects released together fall at the same rate regardless of mass.
See video below.

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