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Armillary sphere diagram. The exterior parts of this machine are a compages [or framework] of brass rings, which represent the principal circles of the heavens: . The equinoctial A, which is divided into 360 degrees (beginning at its intersection with the ecliptic in Aries) for showing the sun's right ascension in degrees; and also into 24 hours, for showing its right ascension in time.
Santucci's armillary sphere is a Ptolemaic armillary sphere at the Museo Galileo in Florence, the largest existing in the world. [ 1 ] Begun on March 4, 1588, and completed on May 6, 1593, this large armillary sphere was built under the supervision of Antonio Santucci at the request of Ferdinand I de' Medici .
Armillary sphere: model of objects in the sky consisting of a framework of rings; Astrarium: timepiece and astronomical prediction device; Astrolabe: astronomical instrument; Astronomical clock: clock with special mechanisms and dials to display astronomical information; Antikythera mechanism: ancient Greek analogue astronomical computer
It was intended to serve as an automatic armillary sphere. [2] Leonardo da Vinci made a number of drawings of devices he hoped would make free energy. Leonardo da Vinci was generally against such devices, but drew and examined numerous overbalanced wheels. [3] [4] Mark Anthony Zimara, a 16th-century Italian scholar, proposed a self-blowing ...
The Noyes Armillary Sphere is a bronze armillary sphere located in Meridian Hill Park, a 12-acre (4.9 ha) urban park in Washington, D.C. It was the fifth artwork installed in the park and was designed by sculptor C. Paul Jennewein, whose other works in the city include the Darlington Memorial Fountain and 57 sculptural elements at the Robert F. Kennedy Department of Justice Building.
The later Song dynasty historical text of the Song Shi (compiled in 1345 AD) records Zhang's work (Wade-Giles spelling): . At the beginning of the Thai-Phing Hsing-Kuo reign-period (+976) the Szechuanese Chang Ssu-Hsun [Zhang Sixun], a student in the Bureau of Astronomy, invented an astronomical clock (lit. armillary sphere, hun i) and presented the designs to the emperor Thai Tsung, who ...
The clock has an armillary sphere with a diameter of 40 cm. The sphere is activated by a clockwork mechanism, designed to display the position of the heavens at any given time, as well as displaying the hours and marking their passage with a chiming bell. The device is no longer in working order. The clock is owned by Korea University Museum ...
Martin suggested that the conventional orrery should consist of three parts: the planetarium where the planets revolved around the Sun, the tellurion (also tellurian or tellurium) which showed the inclined axis of the Earth and how it revolved around the Sun, and the lunarium which showed the eccentric rotations of the Moon around the Earth. In ...
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