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Abstract AI-Helper 아이콘AI-Helper

Heumgyeonggaknu is a water-hammering type automatic water clock which was made by Jang Yeong-Sil in 1438. The water clock that is located in Heumgyeonggaknu consists of Suho which is equipped with 2-stage overflow. Constant water wheel power is generated by supplying a fixed amount of water of Suho ...

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AI 본문요약
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제안 방법

  • However, the historical record of Heumgyeonggaknu stated that ‘5,000 to 6,000 geun (斤) of bronze’ was used for the water clock, indicating that the size is not small. In this study, the structure was estimated considering both of the two possibilities that the water clock is located inside or outside Gasan. In addition, regarding the water clock configuration of Borugaknu, Nam (2002) placed a large water pot at the top, arranged 2-stage (upper and lower, 2 pieces) Suho below the pot which has an overflow device at the lower Suho, and positioned 1-stage (1 piece) Pyesuho which receives the overflowed water.
  • This study revised and supplemented the proceedings data of “2012 International Symposium on Historical Astronomy” (Held in Seoul, Korea, 17-19 May 2012), and added the analysis of internal parts.

대상 데이터

  • This record stated that the Heumgyeonggak is located in the western side of Gyeongbokgung Cheonchujeon, and explained the external structure of Heumgyeonggaknu. The Heumgyeonggaknu was completed in January 1438, and King Sejong ordered Kim Don (金墩, 1385~1440) to compose the writing for record. This record describes the external form and operation structure of Heumgyeonggaknu.
  • The reconstruction was carried out in Changdeokgung (昌德宮) palace Seorinmun (瑞燐門) gate considering the situation of the times that the Beopgung (法宮) was moved to Changdeokgung palace and Changgyeonggung (昌慶宮) palace. The construction work is processing despite the request of discontinue from Saganwon (司諫院, the government office of inspection) and Saheonbu (司憲府, the government office of advice) and the Heumgyeonggak was completed over a period of 1 year.

이론/모형

  • 1 Hence, the water clock for the King was made by building Heumgyeonggak (欽敬閣) pavilion on the western side of Cheonchujeon (千秋殿) pavilion and installing Heumgyeonggaknu (欽敬閣漏, alias ‘Ongnu’) within Heumgyeonggak pavilion.2 In this study, the internal components of Heumgyeonggaknu were analyzed based on the record of 『Annals of the Joseon Dynasty (朝鮮王朝實錄)』 which introduces the structure of Heumgyeonggaknu made by Jang Yeong-Sil (蔣英實). Especially, the operation mechanism was systematically examined by presenting the internal parts and configuration as schematic diagrams.
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참고문헌 (10)

  1. Ahn SH, Astronomical Books and Charts Having Been Preserved in the External Branch of the Choson's Royal Library, Gyujanggak, 37, 289-320 (2010). 

  2. Hahn YH, Nam MH, Lee SW, Yi MK, Astronomical clocks of the Chosun Dynasty - King Sejong's Heumgyonggaknu, Technology and History, 1, 99-140 (2000). 

  3. Hill DR (ed. & transl.), The book of knowledge of ingenious mechanical devices (Pakistan Hijra Council, Islamabad, 1989), 15-82, Original author: Al-Jazari 

  4. Kim DH, Palaces architecture of Seoul (Sigongart, Seoul, 2002), 79. 

  5. Kim SH, Lee YS, Lee MS, A study on the operation mechanism of Ongnu, the astronomical clock in Sejong Era, JASS, 28, 79-91 (2011). http://dx.doi.org/10.5140/JASS.2011.28.1.079 

  6. Kim SH, Song I-Yong's armillary clock(Korean Studies Information, Paju-si, 2012), 92, 160. 

  7. Lee YS, Kim SH, Structure and conceptual design of a water-hammering-type Honsang for restoration, JASS, 29, 221-232 (2012). http://dx.doi.org/10.5140/JASS.2012.29.2.221 

  8. Nam MH, Jang Yeong-Shil and the striking clepsydra Jagyeongnoo - Revival on the time measuring history of Chosun Period (Seoul National University Press, Seoul, 2002), 192, 241-242. 

  9. Needham J, Lu GD, Combridge JH, Major JS, The hall of heavenly records: korean astronomical instruments and clocks 1380-1780 (Cambridge University Press, London, 1986), 76-80. 

  10. Park JH, A study on the flow control and escapement system of the water operated mechanical clock in Joseon Dynasty, MS Thesis, Chungbuk National University (2011). 

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