This simple yet elegant device consists of a metal pendulum suspended from an executive wooden stand, and can be used to demonstrate that the Earth does, indeed, rotate. With its rhythmic motion, this pendulum gently creates beautiful Lissajous patterns in the sand and the patterns are never the same!
Mesmerizing and addictive! The metal pendulum converts kinetic energy into potential energy and the fine sand provides minimal friction allowing the pendulum to swing for an extended period of time. As the pendulum swings it gently create a geometic patterns in the sand.
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