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Old 04-16-2009   #3 (permalink)
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Re: Over Balanced Wheel - Perpetual Motion

The quick answer would be: count the number of weights on either side of the axis.
The longer answer is: you need torque to make the wheel turn an torque is the product of force and distance from the axis. When people look at overbalanced wheels they usually only look at the distance from the axis but never pay attention what the total force (mass) on either side is.
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