The Astronomical Observatories of Jai Singh c15.s2.t1.4

Language: English

c15.s2.t1.4

(1) A quadrant, or mural circle, constructed of wood, the radius of which was about 11 feet. The arc was of copper, 3 inches wide, and was graduated. At the centre was a copper pin, round which the alhidade (furnished with two sights) turned. The alhidade terminated in a point, and was moved by a cord passing over a pulley attached to the wall.

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