Heebie Jeebies - Foucault Pendulum 38cm
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This simple device with a black stand is the perfect size to sit on your desk, with its rhythmic motion inscribing beautiful patterns in the sand.
Gently inscribing beautiful Lissajous patterns in the sand. It was first used in the Han dynasty China as an early seismometer, then studied in depth by Galileo.
Their crowning moment came in 1851, when Jean Bernard Léon Foucault used a pendulum suspended from the dome of the Panthéon in Paris that was free to pivot to demonstrate the rotation of the Earth.