隋朝“日长影短”探析

发布时间：2018-07-06 08:15

  本文选题：日长影短 + 影长　； 参考：《科学技术哲学研究》2016年03期

【摘要】：隋朝历争中,张胄玄和袁充先后提出"日长影短"一说,文章指出这一说法是将一年中影长与白昼长度的周年变化,移植为不同年份相同日的影长与白昼长度发生变化,而此变化实际并不存在;并剖析了隋开皇年间影长的测量数据,指出冬至影长分别测自洛阳和长安地区,夏至影长测自长安地区,由于隋朝都城迁址导致长安地区测影点向南迁移,其相应的冬至、夏至影长也随之变短。这一说法回避了这些事实,被当作吉兆为隋朝政治所接受,但遭到了后世的批驳。
[Abstract]:In the Sui Dynasty, Zhang Zhou and Yuan Chong put forward the theory of "short shadow of the sun" successively. The article points out that the annual variation of the length of the film and the length of the day in a year is transplanted into the change of the length of the shadow and the length of the day of the same day in different years. However, this change does not actually exist, and the measured data of the shadow length of Sui Dynasty are analyzed, and it is pointed out that the Winter Solstice shadow length is measured from Luoyang and Changan area, and the Summer Solstice shadow length from Changan area. Due to the relocation of the capital of the Sui Dynasty, the shadow points of Changan area moved southward, and the corresponding the Winter Solstice and the Summer Solstice shadow lengths became shorter. This theory evaded these facts and was accepted by Sui-dynasty politics as auspicious, but was refuted by later generations.
【作者单位】： 上海中医药大学基础医学院;
【基金】：上海中医药大学预算内项目(人文社科类)(2015YSN65)
【分类号】：P1-092
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本文编号：2102117