IHNS OpenIR  > 中国古代科技史
徐凤先; 何驽
Source Publication自然科学史研究
Other AbstractThe idea that the length of the sun's shadow increases 1 cun for every 1000 li north and decreases 1 curt for every 1000 li south has profound effect in the history of Chinese astronomy. Based on new archaeological and archaeoastronomical discoveries and studies, as well as textual investigations, this paper concludes the idea of 1 cun for 1000 li originated from observations of the sun's shadow from two important archaeological sites, the Taosi site and the Wangchenggang site, during the critical period when the first state was being formed. The length of the sun's shadow at summer solstice observed by the dwellers of Taosi site was 1.6 chi( 16 curt), and that observed by the dwellers of Wangchenggang site was 1.5 chi( 15 curt). The former handed down into Zhoubi suanring while the latter into Zhouli. Study on the length and distance system of early China demonstrates that the distance between the two sites is very near to 1000 li at that time. It is a special period in Chinese history when measurement of the sun's shadow and large-scale geographical survey began subsequently, and thus the idea of 1 cun for 1000 li came into existence.
Keyword日影千里差一寸 周髀算经 周礼 陶寺 王城岗
Subject Area天文学史
Funding Organization国家自然科学基金(项目编号:10873039);中国科学院知识创新工程重要方向性项目(项目编号:KJCX2-YW-T15);中国科学院自然科学史研究所古代科技史项目(项目编号:Y023011003)
Document Type期刊论文
Recommended Citation
GB/T 7714
徐凤先,何驽. “日影千里差一寸”观念起源新解[J]. 自然科学史研究,2011,30(2):151-169.
APA 徐凤先,&何驽.(2011).“日影千里差一寸”观念起源新解.自然科学史研究,30(2),151-169.
MLA 徐凤先,et al."“日影千里差一寸”观念起源新解".自然科学史研究 30.2(2011):151-169.
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