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He invented a mechanized water clock with the Tantric monk and mathematician Yi Xing (Chinese: 一行; pinyin: Yī Xíng; Wade–Giles: I-Hsing). [1] [2] [3] It was actually an astronomical instrument that served as a clock, made of bronze in the capital of Chang'an in the 720s. It was described by a contemporary text this way:
Su Song was of Hokkien ancestry [13] who was born in modern-day Fujian, near medieval Quanzhou. [14] Like his contemporary, Shen Kuo (1031–1095), Su Song was a polymath, a person whose expertise spans a significant number of different fields of study.
A water clock or clepsydra (from Ancient Greek κλεψύδρα (klepsúdra) 'pipette, water clock'; from κλέπτω (kléptō) 'to steal' and ὕδωρ (hydor) 'water'; lit. ' water thief ' ) is a timepiece by which time is measured by the regulated flow of liquid into (inflow type) or out from (outflow type) a vessel, and where the amount ...
There are no recognised examples in existence of outflowing water clocks from ancient Mesopotamia, but written references have survived. [14] The introduction of the water clock to China, perhaps from Mesopotamia, occurred as far back as the 2nd millennium BC, during the Shang dynasty, and at the latest by the 1st millennium BC. Around 550 AD ...
Remarkably, Philo's comment that "its construction is similar to that of clocks" indicates that such escapement mechanisms were already integrated in ancient water clocks. [7] In China, the Tang dynasty Buddhist monk Yi Xing, along with government official Liang Lingzan, made the escapement in 723 (or 725) AD for the workings of a water-powered ...
A recreated model of Jang Yeong-sil's automated water clock. The Chinese qiqi (欹器, "tipping vessel") was adapted for a technologically sophisticated Korean water clock during the Joseon dynasty (1392–1897). King Sejong the Great (r. 1418–1450) ordered the inventor Jang Yeong-sil to develop two automated water clocks.
Science & Civilisation in China: Volume 4, Physics and Physical Technology, Part 2, Mechanical Engineering. Cambridge University Press. ISBN 0-521-05803-1. OCLC 153247141. Quan, He Jun (November 13–16, 1985). "Research on scale and precision of the water clock in ancient China". In G. Swarup; A. K. Bag; K. S. Shukla (eds.).
Since modern clockmakers are required to repair antique, handmade or one-of-a-kind clocks for which parts are not available, they must have some of the design and fabrication abilities of the original craftsmen. A qualified clockmaker can typically design and make a missing piece for a clock without access to the original component.
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