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大科学家祖冲之,小时候就会背这样一首歌谣:“月亮初一看不见,初二一根线。初三初四镰刀月,初七初八月半边。一天更比一天胖,直到十五月团圆。十七、十八月迟出,二十二半夜见半圆。一天更比一天瘦,二十九、三十月难见。”它形象地描绘了农历不同时间的不同月相。我们知道月亮是地球的卫星,自己不能发光,“月光”实际上是月亮表面反射出的太阳光。月亮
Scientists Zu Chongzhi, a child will be back with such a song: “The first day of the invisible moon, the first two lines of a sickle. The beginning of the first four four sickle month, seventh day in early August. One day more fat than one day until in December Reunited in 17 and 18, with a semicircle in the middle of the night of the 22nd, one day is thinner than the other day, and it is difficult to see on the 29th and the 30th. ”It vividly depicts the different phases of the lunar new year at different times. We know that the moon is the Earth's satellite, can not be their own light, “Moonlight” is actually reflected from the moon's surface sunlight. moon