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tvp45's Profile
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In Topic: Air motion in an automobile...
17 April 2012 - 01:37 AM
Yes, I throw my vote in with ewmon and davey2222. The effect can be readily seen by using a helium birthday balloon, which "rises" in the direction of acceleration in the same fashion as heated air. The layer of air adjacent the windows would of course be heated. -
In Topic: Can we make a new kind of spring?
17 April 2012 - 01:19 AM
These folks sell a nice variety of constant force springs, though these may be different from what you had in mind. Even if the springs aren't right, their collection of mechanical items is a real "candy store" for the tinkerer.
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tvp45
08 Feb 2009 - 01:03iNow
08 Feb 2009 - 00:49