Foucault Pendulum 38cml

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Watch the rhythmic motion inscribing beautiful patterns into the sand and be mesmerised. The pendulum rocks through the fine sand it gently ‘writes' an ever changing geometric patt ern. The patterns change size as the arc of the pendulum changes. The 38cm version has a black stand and is perfect to sit on your desk and watch the patterns transform before your eyes. The simplicity of a pendulum belies its scientific importance, as it has been used to demonstrate a plethora of principles, including the rotation of the Earth, and has been used to detect earthquakes for over a millennium. A fabulous gift for the ‘hard to buy for' older child or adult. Features: Metal pendulum 38cm Black stand Fine sand Instructions Ages: 8+ Show more