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December 14th, 2012

Tags: science Security: Subject: Slow-motion slinkies defy gravity. Time: 09:35 pm

I had never noticed this despite using Slinkies fairly often for wave experiments at work. REALLY cool! http://www.theregister.co.uk/2012/12/14/falling_slinky_defies_gravity/

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beamjockey Link: (Link) Time: 2012-12-15 03:53 am (UTC)

When I was a physics major, a group of us were puzzling over a similar problem. Thinking about the bottom end, one of my fellow students asked, "What's holding it up?" Mark Parker quickly answered with a grin: "Ignorance!"

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ffutures Link: (Link) Time: 2012-12-15 08:29 am (UTC)

Which is of course entirely correct - it's ignorant of the change in stress propagating down the spring.

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eledonecirrhosa Link: (Link) Time: 2012-12-16 11:16 am (UTC)

That's fascinating! Now I want to find a lead slinky and a slow motion camera...

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