Friday, December 23, 2011

Bonus Thurs-Demo: The One Dropping a Slinky

Have you ever dropped a slinky? If you've never looked closely at a free falling slinky, well you've come to the right place. But dropping a stretched slinky doesn't do what you might think. Take a look at the high speed:

Rhett Allain went so far as to build a computer model of a falling slinky to illustrate why the bottom of the slinky doesn't move until the top catches up. (Down?)

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