Beijing ancient observatory (1 risultati)
Editore: China, Central Iron and Steel Research Institute / Ministry of Metallurgy, not dated (ca. 1980ies). 1980
- Rilegato
Da: C O - L I B R I , Bremen - Berlin ; Deutschland / Germany ., Berlin, GermaniaC O - L I B R I , Bremen - Berlin ; Deutschland / Germany .
Contatta il venditoreVenditore con 5 stelleCondizione: Usato
EUR 620,00
EUR 45,00 spedizioneSpedito da Germania a U.S.A.Quantità: 1 disponibili
Square steelplate (10 x 10 cm) with circular scientifically engraved patterns and ornamental corners + 3 shadow-steles on small cylindric stands (ca. 3-, 4- and 5 cm), folded introduction sheet in Chinese and English language; stored on a red velvet inlay of an ornamentally gilt silk-covered padded box with bone-clasp (ca. 14 x…10 x 3 cm). *** [FRÜHSOMMER-VERKAUF / EARLY SUMMER-SALE: um über 20% REDUZIERTER PREIS bis Montag, den 29.06.2026 / PRICE-REDUCTION of over 20% until Monday, June 29; vorheriger Preis / previously EUR 800,-] --- HIGH QUALITY AUTHENTIC REPLICA of ''An ancient Chinese instrument for finding directions. 'Zheng Fang Án' (Normal Direction Finder), was invented and designed by the astronomer, Guo Shou-Jing (1231-1316) of the Yüan Dynasty. He made the method of determining directions from shadow observation earn high reputation for many centuries. . .''(Beginning of the English introduction). - A BEAUTIFUL OBJECT: ''In 1276, after Yuan forces captured the Southern Song capital Lin'an (present-day Hangzhou), Kublai Khan gathered personnel from the astronomical bureaus of both the Jin and Song dynasties in Dadu (present-day Beijing). Along with newly selected talents, they formed a powerful astronomical team. Under the leadership of Wang Xun and Guo Shoujing, this team engaged in instrument-making, astronomical measurements, and the compilation of a new calendar. In just five years (1276-1280) they achieved remarkable accomplishments elevating ancient Chinese astronomy to a new peak. . . The Zheng Fang An consisted of 19 concentric circles drawn on a four-foot square wooden board, with a rod placed at the center. When the shadow of the rod fell on a specific circle, the position was recorded. By connecting two points on the same circle from morning to evening, the midpoint of the line connecting them and the center of the circle would indicate [the] true south. If the board were stood on its side, it could also measure the height of the North Star above the horizon. This instrument was portable, making it suitable for fieldwork.''(from the website of 'ChinaKnowledge - An Encyclopaedia on Chinese History, Literature and Art', chapter ''Calendar - Chronology - Astronomy'').