• 제목/요약/키워드: Jang Yeong-sil

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Cesium oxides와 Uranium Oxides 반응연구

  • 김종구;장은실;박양순;하영경;송규석
    • 한국방사성폐기물학회:학술대회논문집
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    • 한국방사성폐기물학회 2012년도 추계학술논문요약집
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    • pp.431-432
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    • 2012
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조선시대 간의대 천문관측기기 개발자 (MANUFACTURERS OF ASTRONOMICAL INSTRUMENTS INVENTED DURING THE GANUI-DAE PROJECT IN JOSEON DYNASTY)

  • 민병희;이민수;최고은;이기원
    • 천문학논총
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    • 제31권3호
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    • pp.77-85
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    • 2016
  • We study the manufacturers of the astronomical instruments invented as part of the so-called Ganui-Dae (astronomical platform) project in the reign of King Sejong (1418-1450) of the Joseon dynasty. The main purpose of this project was to compile the Chiljeongsan-Naepyeon, a Korean calendar, that lasted for 5.5 years from 1432 to 1438. Through this project, a total of 17 astronomical instruments such as the armillary sphere, celestial globe, and auto-striking clepsydra were developed. It is generally known that most of them were manufactured by Lee Cheon (李蕆, 1376-1451) and Jang Yeong-Sil (蔣英實, fl. 1423-1442). In this study, we investigate the accounts of the Veritable Records of King Sejong, Munjong, and Sejo, focusing on the inscription written out to memorize the completion of the Ganui-Dae project. We found that at least 12 persons took part in manufacturing the astronomical instruments of the Ganui-Dae project. Lee Cheon was involved in the production of four instruments, while Jang Yeong-Sil was involved in two; therefore, it seems that the achievement of Jang Yeong-Sil was overestimated. We also found that Jeong Cho (鄭招, ?-1434) was a scientist and Lee Cheon was an engineer in the early phase of the Ganui-Dae project, while King Sejong and Yi Sun-Ji (李純之, 1406-1465) played major role in the late phase. According to our study, King Sejong and Yi Sun-Ji were involved in the production of at least seven and five instruments, respectively. In conclusion, we believe that this study will be helpful to understand the practical manufacturers of the astronomical instruments invented during the Ganui-Dae project in the Joseon dynasty.