Whitehaven Gazette
Oct. 18, 1819
New Orrery | New Orrery |
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| Whitehaven Gazette - Oct. 18, 1819 | |
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NEW ORRERY. The Rev. G. GOUGH, of Ayton, has lately constructed an Orrery of much improved form which exhibits great ingenuity and mechanical skill. It consists of a large glass globe mounted on a brazen stand, and splendidly illuminated with circles, golden stars &c., which exhibit an interesting picture of the heavens, and at the same time containing within it all the planets and satellites, adjusted to true time according to the latest discoveries. It displays the solar system in motion, together with its relation to the celestial sphere as in nature. The movement being enclosed within the glass globe are thus effectually secured from injury and the beauty of the mechanism is preserved from tarnishing by its not being exposed to the external air. The motions are conveyed through slender tubes, and hollow pillars, and arms in such a manner as to conceal from view the clumsy appendages of large wheels, and almost every other part of the apparatus except the heavenly bodies themselves moving in order round their respective centres. The diurnal revolutions and those of the satellites can be disconnected at pleasure, in order to exhibit a more rapid circulation of the planets in the ecliptic in their true proportional periods, whereby even the slow motion of the Georgium Sidus is rendered visible to the eye. When such exhibitions are not required to be made, the whole may be kept in motion by a small time piece; and thus the Orrery becomes a perpetual ephemeris, representing, on inspection the thus position of the planets, the phenomenon of their seasons, occasioned by the inclination and parallelism of their axes so far as known, the lunar phases, eclipses, &c. ****** |
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