2013年11月20日星期三

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What is the shape of the earth in the end, ugg store positional relationship between how much each of heaven and earth ? From the Spring and Autumn Period, people have debated around these issues, participate in discussions not only with astronomers, philosophers, and even some emperors, such as the Emperor Liang Wu, Ming emperor, also joined the ranks of controversy. Han Wei is a Chinese astronomy to the era of rapid development, but also the academic thinking more active era. During this period, the emergence of the doctrine of many discussions earth structure, in which the most important is the celestial dome formed in the Han Dynasty, huntian say and declare night said.

Celestial dome is China 's oldest discuss world structure system. Early celestial dome that: day is like a chessboard clasp cauldron covered with the same earth. This makes it easy for people to shape world doubt : Round of days how to work with the square of the earth close it ?ugg sale, Subsequently, the celestial dome home again proposition: days like round hats, places like the clasp plates, both of which are surrounded by low arched high in the middle. This celestial dome that is able to overcome the shortcomings of said hemispherical dome, also explain a lot of the heavens.

Innermost one called homeostatic, summer solstice sun along the homeostatic walk around ; outermost circle is called the outer scale, is the winter solstice, the sun's path ; other solar terms, the sun along the middle of the five runs. This is the home of the seven celestial dome balance six. cheap ugg store Also asserted that the sun only illuminated 16.7 miles, over this distance can not see anything. So during the day the sun came cheap ugg store 16.7 Miles from within range, while the night outside this range. Zhang Heng in the " armillary ghd sale note" one paper wrote: huntian such as chicken, celestial round as projectiles. http://www.sheffieldcathedral.org/news/

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