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Hasil cari dari kata atau frase: Armillary sphere (0.01945 detik)
Found 2 items, similar to Armillary sphere.
English → English (WordNet) Definition: armillary sphere armillary sphere n : a celestial globe consisting of metal hoops; used by early astronomers to determine the positions of stars [syn: armilla]
English → English (gcide) Definition: 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 Webster] 2. Hence, any globe or globular body, especially a celestial one, as the sun, a planet, or the earth. [1913 Webster] Of celestial bodies, first the sun, A mighty sphere, he framed. --Milton. [1913 Webster] 3. (Astron.) (a) The apparent surface of the heavens, which is assumed to be spherical and everywhere equally distant, in which the heavenly bodies appear to have their places, and on which the various astronomical circles, as of right ascension and declination, the equator, ecliptic, etc., are conceived to be drawn; an ideal geometrical sphere, with the astronomical and geographical circles in their proper positions on it. (b) In ancient astronomy, one of the concentric and eccentric revolving spherical transparent shells in which the stars, sun, planets, and moon were supposed to be set, and by which they were carried, in such a manner as to produce their apparent motions. [1913 Webster] 4. (Logic) The extension of a general conception, or the totality of the individuals or species to which it may be applied. [1913 Webster] 5. Circuit or range of action, knowledge, or influence; compass; province; employment; place of existence. [1913 Webster] To be called into a huge sphere, and not to be seen to move in 't. --Shak. [1913 Webster] Taking her out of the ordinary relations with humanity, and inclosing her in a sphere by herself. --Hawthorne. [1913 Webster] Each in his hidden sphere of joy or woe Our hermit spirits dwell. --Keble. [1913 Webster] 6. Rank; order of society; social positions. [1913 Webster] 7. An orbit, as of a star; a socket. [R.] --Shak. [1913 Webster] Armillary sphere, Crystalline sphere, Oblique sphere,. See under Armillary, Crystalline,. Doctrine of the sphere, applications of the principles of spherical trigonometry to the properties and relations of the circles of the sphere, and the problems connected with them, in astronomy and geography, as to the latitudes and longitudes, distance and bearing, of places on the earth, and the right ascension and declination, altitude and azimuth, rising and setting, etc., of the heavenly bodies; spherical geometry. Music of the spheres. See under Music. [1913 Webster] Syn: Globe; orb; circle. See Globe. [1913 Webster] Armillary \Ar"mil*la*ry\, a. [LL. armillarius, fr. L. armilla arm ring, bracelet, fr. armus arm: cf. F. armillaire. See Arm, n.] Pertaining to, or resembling, a bracelet or ring; consisting of rings or circles. [1913 Webster] Armillary sphere, an ancient astronomical machine composed of an assemblage of rings, all circles of the same sphere, designed to represent the positions of the important circles of the celestial sphere. --Nichol. [1913 Webster]

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