Simple Machines

Category: General ScienceCool Site: August  2005
You might never have thought of the lid on your toilet as a machine, but this site shows how simple mechanical devices dominate our everyday life. By inspecting items in a home, garage, and tool shed, visitors discover levers, gears, axles, inclined planes and other simple mechanics. Which simple principle is behind the lid of your toilet? You'll need the free Flash player.

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