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S1 E9
·2020
In 1587, Galileo thought that the heavier an object was, the faster it fell because a hammer fell faster than a feather. Galileo decided to test this by rolling a marble down an inclined plane. He found that whatever their size, they travelled down the incline at the same speed.
Levels:
Subjects:
French level:
Levels:
Subjects:
French level: