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March 31, 2015

March 31, 2015

Posted by **jess** on Sunday, April 5, 2009 at 6:07am.

- Science-physics -
**drwls**, Sunday, April 5, 2009 at 6:55amIn high gear, the wheel turns many times for each revolution of the pedals. In low gear (which is easier for climbing hills), the ratio of wheel revolutions to pedal revolutions is much less.

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