Togeth-er with Nan Gongshuo, he used a post to measure the shadow cast by the sun, and calculated the relations between the sun's positions and the solar terms.
张遂和南宫说等人一起,用标竿测量日影,推算出太阳位置与节气的关系。
Togeth-er with Nan Gongshuo, he used a post to measure the shadow cast by the sun, and calculated the relations between the sun's positions and the solar terms.
张遂和南宫说等人一起,用标竿测量日影,推算出太阳位置与节气的关系。
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