Apple QuickTime movie | 1995-08-14 | 31.2 MB | 512x276 | 30fps | 5 minutes, 2 seconds
Transcription: Falling is another common kind of motion. Try dropping something. A book for example. Did it move at constant speed? It probably happened so fast you couldn't tell. Galileo, 1564 to 1642, also wondered about this problem. Galileo figured out a way to slow down the falling motion so it could be studied at leisure. His apparatus? An inclined plane. Galileo rolled many objects down inclined planes using his own pulse as a clock. Super slo-mo. How do we know that rolling down a slope is like falling, only slower? Ah, there is Galileo's genius. As he tilts the plane steeper and steeper, the motion ...
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