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Old 03-05-2006, 04:56 AM
Who_me? Who_me? is offline
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Join Date: Jan 2001
Location: Maryland, USA
Posts: 3,065
Jeeze, not again...

The first problem is, as I see it, that the original problem set up impossible circumstances. Setting up a problem with impossibilities is kind of like dividing by zero... it sort of invalidates the whole thing.

There is no way for a conveyor belt to match exactly the speed of the rotation of the wheels, plus even if there was, that would set up a feedback loop with both the wheels and the belt going infinite miles per hour. Also, no matter what anyone thinks, the friction from the wheels turning would still be much less than the thrust of the engine... unless they were spinning at an infinite speed, I guess.

I just though of something... what if you locked the wheels altogether and poured water on the treadmill... then froze it. Hey! Then the plane could take off!