armillary spheres

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• Armillary sphere — An armillary sphere (variations are known as spherical astrolabe, armilla, or armil) is a model of the celestial sphere. Description and use of the armillary sphere The exterior parts of this machine are a compages of brass rings, which represent …   Wikipedia

• armillary sphere — Astron. an ancient instrument consisting of an arrangement of rings, all of which are circles of the same sphere, used to show the relative positions of the celestial equator, ecliptic, and other circles on the celestial sphere. [1550 60] * * * ▪ …   Universalium

• Armillary sphere — Sphere Sphere, n. [OE. spere, OF. espere, F. sph[ e]re, L. sphaera,. Gr. ??? a sphere, a ball.] 1. (Geom.) A body or space contained under a single surface, which in every part is equally distant from a point within called its center. [1913… …   The Collaborative International Dictionary of English

• Celestial spheres — Not to be confused with celestial sphere. For other uses, see Celestial (disambiguation). Geocentric celestial spheres; Peter Apian s Cosmographia (Antwerp, 1539) …   Wikipedia

• Music of the spheres — Sphere Sphere, n. [OE. spere, OF. espere, F. sph[ e]re, L. sphaera,. Gr. ??? a sphere, a ball.] 1. (Geom.) A body or space contained under a single surface, which in every part is equally distant from a point within called its center. [1913… …   The Collaborative International Dictionary of English

• Zhang Heng — For other uses, see Zhang Heng (disambiguation). This is a Chinese name; the family name is Zhang. Zhang Heng (張衡) Born …   Wikipedia

• Astronomy in medieval Islam — An 18th century Persian Astrolabe, kept at The Whipple Museum of the History of Science in Cambridge, England. Islamic astronomy or Arabic astronomy comprises the astronomical developments made in the Islamic world, particularly during the… …   Wikipedia

• Chinese astronomy — The Dunhuang map from the Tang Dynasty (North Polar region). This map is thought to date from the reign of Emperor Zhongzong of Tang (705–710). Founded in Dunhuang, Gansu. Constellations of the three schools were distinguished with different… …   Wikipedia

• Indian astronomy — the earliest textual mention of which is given in the religious literature of India (2nd millennium BCE) became an established tradition by the 1st millennium BCE, when IAST|Jyotiṣa Vedānga and other ancillary branches of learning called Vedangas …   Wikipedia

• Chinese star maps — (Chinese: 星圖) are usually directional or graphical representations of Chinese astronomical alignments. Throughout the history of China, numerous star maps have been recorded. This page is intended to list or show the best available version of… …   Wikipedia

• Henry Lee of Ditchley — Sir Henry Lee KG (1533 ndash; 12 February, 1611) of Ditchley was Master of the Ordnance under Queen Elizabeth I of England.Lee became Queen Elizabeth I’s champion in 1570 and was appointed Master of the Royal Armouries in 1580, an office which he …   Wikipedia