October 2015
Beginner to intermediate
122 pages
3h 38m
English
By Alan Federman
Last year I was blown away by the clever mechanisms displayed in the Leonardo da Vinci exhibit at the Tech Museum of Innovation in San Jose. I was especially taken by da Vinci’s simple mechanism for powering a sawmill with a water wheel. I made my own tabletop model of the mechanism, and it never fails to gather a crowd when I show it off.
The typical mechanism for converting between rotation and reciprocal motion is a flywheel and a crankshaft, like on a steam locomotive. But da Vinci’s simple device starts ...
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