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getting more for your bike energy

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ronniejames | 18:14 Wed 10th Sep 2008 | Science
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if you add gears to help spin a larger object , could one person produce more energy to store and use electricity?
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You cannot break the law of conservation of energy.

Energy = force times distance

The man produces a low force and moves his/her legs over a large distance. The gearing translates that into a larger force over a smaller distance.

Losses through friction will always mean less than 100% efficiency.
20:02 Wed 10th Sep 2008
Avatar Image heathfield
It's what you do with wind-up flashlights and radios.
16:01 Fri 12th Sep 2008

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