The origin of the summer solstice Lu Zhang Ming Xiu Sina blog | |
| Title: | The origin of the summer solstice Lu Zhang Ming Xiu Sina blog |
| URL: | http://frpololacostesoldes.com/ |
| Description: | Round solar terms - the origin of the summer solstice 2013-06-17 Views: 59 people find it useful 24 solar terms in the summer solstice is the first to be identified by a throttle. The seventh century BC, ancestors used Tugui measured shadow, to determine the summer solstice. The annual summer solstice from June 21 (or 22) start to July 7 (or 8) ends. According to "abide by the Constitution degree transcript": "2012 North to the length of day matter, short shadow, twenty years before the summer solstice. To who is also extremely." Summer solstice day, the position of direct sunlight to reach the ground northernmost year almost direct Tropic of Cancer (latitude 23 ° 26 '), the longest day in the northern hemisphere, and the more north day longer. Such as Haikou, Hainan's Day this day a little more than about 13 hours, to 14 hours in Hangzhou, Beijing for about 15 hours, while Heilongjiang Mohe is up to 17 hours or more. After the summer solstice, the sun gradually southwa |
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