Difference between revisions of "Orrery"
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== The Nuttall Encyclopedia <ref name="term_77476" /> == | == The Nuttall Encyclopedia <ref name="term_77476" /> == | ||
<p> | <p> 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. </p> | ||
==References == | ==References == | ||
Latest revision as of 18:48, 15 October 2021
Webster's Dictionary [1]
(n.) An apparatus which illustrates, by the revolution of balls moved by wheelwork, the relative size, periodic motions, positions, orbits, etc., of bodies in the solar system.
The Nuttall Encyclopedia [2]
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.
