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Newton's Swingchair

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Newton's cradle. Swingchairs. Compare, contrast, combine.
—MaxwellBuchanan, May 31 2010

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       Only the outside two are going to get much out of this, assuming the chairs are inelastic.   

       T'would be more of a spectator sport were they elastic.
—MikeD, May 31 2010
   

       Awww, and I was hoping you'd get it, [bigs]. OK, basically you build a large Newton's cradle, and people can sit on your balls. Much hilarity ensues.
—MaxwellBuchanan, May 31 2010
   

       //people can sit on your balls//   

       Oh alright. [+]
—MikeD, May 31 2010
   

       Sure, we just encapsulate the passengers. In something.
—MaxwellBuchanan, May 31 2010
   

       Actually, you want elasticity.
—MaxwellBuchanan, May 31 2010
   

       Also, if you think about it, it's funny how Rubik made a fortune from the cube, but Newton never made a penny from his cradle.
—MaxwellBuchanan, May 31 2010
   

       7.4, in old units. 7.6 if you're holding a cat.
—MaxwellBuchanan, May 31 2010
   

       // but Newton never made a penny from his cradle.//   

       I’d have thought Dyson’s Sphere would have been a better corollary.
—MikeD, May 31 2010
   

       It's all yours, [bigs]. For tax reasons, I can't afford to earn any more royalties on top of the legal settlement on the Welsh National Peltier.
—MaxwellBuchanan, May 31 2010
   

       Gonna need some pretty hefty airbags on those swingchairs if you expect _live_ people to use this for more than one swing. Which would tend to use up the initial energy pretty quick.   

       1m initial height, 50kg person = ~500J.
—csea, May 31 2010
   

       Balloons or springs would work fine. All you need is good elasticity.
—MaxwellBuchanan, May 31 2010
   

       //Newton never made a penny// Not from the cradle, but he made plenty of pennies. He was Warden of the Royal Mint.
—mouseposture, May 31 2010
   

       //Only the outside two are going to get much out of this... //   

       Not so. It depends on how many of the pendulums are raised in the initial conditions. You can pull back 4 out of 5 balls and release them.
—Jinbish, May 31 2010
   

       I wonder what the g loading would be one would experience at the moment of energy transfer.
—RayfordSteele, Jun 01 2010
   

       Actually, [MB} is right, as long as the collisions are elastic. And [RS}, g-loading (ac/de-celeration) will depend entirely on the rate of energy transfer.   

       Metallic balls stop dead in their tracks, and shoot off as rapidly, because the energy transfer is quite fast.   

       A more loosely coupled system based on elastic springs/balloons would cause the energy transfer to happen much more gradually. G-loading could be quite gentle, as long as one didn't lose too much of the original mgh energy.
—csea, Jun 01 2010
   

       [+]
—FlyingToaster, Jun 28 2011
   


 

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