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Bouncing Balls - Sixty Symbols

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Uploaded by on Jun 23, 2009

Collisions between tiny balls creates a curious effect in this film about the so-called "coefficient of restitution". More physics at http://www.sixtysymbols.com/

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Science & Technology

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Standard YouTube License

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  • take that entropy

  • 3:40 Scientific conclusion: "And everone want's to cram in the most popular disco".

    This professor cracks me up. ^_^

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  • Actually, a dead cat bounce in the stock market is an actually bounce. It's the bounce in stock prices which often comes right after a big fall, but which does not signal an actual turn around. It's said to come from the idea "even a dead cat will bounce if it falls from a great height".

    I know economics and finance often steal terms from physics and use them somewhat incorrectly, but in this case it seems like it's the other way around.

  • @adamthecg Hehe. Entropy doesn't quite apply since energy is being fed into the system via the bass. :)

  • @TheMohanned94 They get hotter. Whether you would feel the difference or not at that energy level is another question, partially because the heat gets dissipated into the surroundings. The same thing happens in a super ball or any ball you bounce (i.e. a basketball). When the ball is bounced, or collides, the particles that make it up vibrate more due to the collision. This corresponds to an increase in temperature. How much the vibration increases depends on 'r' or how elastic the collision is.

  • George is Neil of Sixty Symbols. :p

  • @ArsonistInUrFirewall Ahh, Thank you, i wasnt sure of the spelling :)

  • @ISN1P3DI

    *Schroedinger or *Schrödinger

  • a dead cat bounce, shrodingers cat (sorry for bad spelling), What do physicists have against cats?!?

  • @damianpaz "34^10's cumming everwhere". He really is great (From another video)

  • @cleatuslewinda It does seem similar but I think the Maxwell's Demon thought experiment occurs in an isolated system with no energy input. In this case however energy is being constantly fed to the system in the form of the vibrations.

  • Interesting as always, but terrible camerawork.

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