1) Cosmoscope 2) Device showing solar system 3) Early astronomy aid 4) Mechanical solar system model 5) Model in a science class 6) Model of the solar system 7) Model solar system 8) Planetarium 9) Planetarium apparatus 10) Planetary model 11) Solar system mockup 12) Solar system model 13) Solar system simulator
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An orrery is a mechanical model of the solar system that illustrates or predicts the relative positions and motions of the planets and moons, usually according to the heliocentric model. It may also represent the relative sizes of these bodies; but since accurate scaling is often not practical due to the actual large ratio differences, a subdued a...
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http://en.wikipedia.org/wiki/Orrery
clockwork model of the solar system
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http://phrontistery.info/o.html
• (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.
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http://thinkexist.com/dictionary/meaning/orrery/
mechanical model of the solar system used to demonstrate the motions of the planets about the Sun, probably invented by George Graham (d. 1751) ... [2 related articles]
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http://www.britannica.com/eb/a-z/o/33
A working model of the Solar System showing the planets, possibly with some of their moons, in orbit around the Sun. It is named after Charles Boyle, Fourth Earl of Cork and Orrery, who commissioned one from John Rowley in 1712.
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http://www.daviddarling.info/encyclopedia/O/orrery.html
A model showing the Sun and planets. The model is usually capable of being moved mechanically so that the planets move at the correct speed around the Sun relative to each other. Some versions of an Orrery have just the Sun, Earth and Moon.
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http://www.encyclo.co.uk/local/20448
Small clockwork or hand-cranked model of the planetary system - a popular astronomical demonstrational apparatus or educational demonstrator during the 18th and 19th centuries. An orrery might complement an astrolabe or a pair of celestial and terrestrial globes in a library or schoolroom.
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Or're·ry noun ;
plural Orreries . [ So named in honor of the Earl of
Orrery .] 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.
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http://www.encyclo.co.uk/webster/O/34
An orrery is a machine for demonstrating the motions of the solar system. It was probably invented by George Graham in the 18th century, and one was certainly constructed by John Rowley in 1715 for Charles Boyle, the fourth Earl of Orrery after whom Sir Richard Steele named the apparatus.
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http://www.probertencyclopaedia.com/browse/GO.HTM
[
n] - planetarium consisting of an apparatus that illustrates the relative positions and motions of bodies in the solar system by rotation and revolution of balls moved by wheelwork
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http://www.webdictionary.co.uk/definition.php?query=orrery
noun planetarium consisting of an apparatus that illustrates the relative positions and motions of bodies in the solar system by rotation and revolution of balls moved by wheelwork; sometimes incorporated in a clock
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https://www.encyclo.co.uk/local/20974
Mechanical device for demonstrating the motions of the heavenly bodies. Invented about 1710 by George Graham, it was named after his patron, the 4th Earl of Orrery. It is the forerunner of the planetarium
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https://www.encyclo.co.uk/local/21221
an apparatus for representing the positions, motions, and phases of the planets, satellites, etc., in the solar system. · any of certain similar machines, as a planetarium.
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https://www.infoplease.com/dictionary/orrery
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