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These high-tech, light "gyrohandles" would be unencumbered by wires, ropes or elastic cords but would resist movement in all directions. Using technology similar to anti-shake film cameras, each dumbbell would enclose gyroscopes. The dumbbell rack would power up the gyros and/or recharge possible batteries
in the dumbells. The user could choose the rpm to provide a suitable resistance level and use them on the hands or feet for overall training.
Powerball toy
http://www.firebox....tion=product&id=168
Kind of baked here [faffer]
As an aside, a good visual explanation of how gyros work.
http://www.accs.net...cefpearson/gyro.htm
An object in motion stays in motion and in a straight line until... [faffer, Mar 22 2002, last modified Oct 21 2004]
As an aside, a good visual explanation of how gyros work.
http://www.accs.net...cefpearson/gyro.htm
An object in motion stays in motion and in a straight line until... [lumpy, Mar 22 2002]
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"recharge possible batteries"
Aha! - now there's the REAL innovation - schodinger batteries. Methinks its that quantum again. |
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Gyroscopes are good for converting attempted rotation away from its axis into procession about its axis, but don't do squat to resist linear translation. |
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Dumbells might not be the best choice for gyroscopic reactions. That wrist exerciser link appears to have the idea though. |
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I have one of those Powerball things, and it really does work. Loud, though. They're wrong about the maximum speed, though; the site I bought mine from Long Ago had one with a speedo on it, showing more than 13k RPM. |
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It is greatly amusing to get it going really well then hand it to someone... |
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Mine got dropped and broken, glued back together, dropped again and reglued, which makes it even louder than it was to begin with. I want one of the metal ones... |
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just looked at this powerball thing, boys. genuine girly question coming up - do you alternate hands ? |
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Eventually. I usually do it till one arm gets tired, then switch. <grin. Yes, I know what that sounds like.> |
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<grins back> Would it help my RSI? |
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The site claims it will help. I only ever get it in one finger, so I can't really say. |
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