Gould, Melissa

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Friction

Submitted by khenkes on Tue, 07/18/2017 - 08:37

Contains two programs which examine friction and simple machines and include related experiments.

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Simple machines

Gould, Melissa

2005

Bill Nye the Science Guy answers questions about simple machines, and conducts experiments that demonstrate how gears make work easier and increase speed and energy, and show how to make a simple pulley.

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