orreries — or·rer·y || É‘rÉ™rɪ / É’r n. device for simulating planets, planetarium … English contemporary dictionary
Orrery — This article is about the mechanical device. For the British peerage, see Earl of Orrery. A small orrery showing earth and the inner planets An orrery is a mechanical device that illustrates the relative positions and motions of the planets and… … Wikipedia
Planetarium — A planetarium is a theatre built primarily for presenting educational and entertaining shows about astronomy and the night sky, or for training in celestial navigation. A dominant feature of most planetariums is the large dome shaped projection… … Wikipedia
David Rittenhouse — Born April 8, 1732(1732 04 08) Paper Mill Run, Pennsylvania Died June 26, 1796( … Wikipedia
Solar system model — Solar system models, especially mechanical models, called orreries , that illustrate the relative positions and motions of the planets and moons in the solar system have been built for centuries. While they often showed relative sizes, these… … Wikipedia
St Mark's Clock — is the clock housed in the St Mark s Clocktower, on St Mark s Square in Venice, adjoining the Procuratie Vecchie. The first clock housed in the tower was built and installed by Gian Paulo and Gian Carlo Rainieri, father and son, between 1496 and… … Wikipedia
Orrery — Ein kleines Orrery, nur mit der Darstellung von Sonne, Merkur, Venus, Erde und Mond … Deutsch Wikipedia
Orrery — Or re*ry, n.; pl. {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.… … The Collaborative International Dictionary of English
orrery — noun (plural orreries) Etymology: Charles Boyle died 1731 4th Earl of Orrery Date: 1713 an apparatus showing the relative positions and motions of bodies in the solar system by balls moved by a clockwork … New Collegiate Dictionary
Clock — For other uses, see Clock (disambiguation). Timepiece redirects here. For the Kenny Rogers album, see Timepiece (album). Platform clock at King s Cross railway station, London … Wikipedia