Orrery

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Orrery [1]

A mechanical toy which exhibits, by an arrangement of rods, balls, and toothed wheels, the sun, the planets, and their moons, all performing their respective motions; so named after the Earl of Orrery, for whom Charles Boyle made the first one in 1715.

References

  1. ↑ Orrery from The Nuttall Encyclopedia
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