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张衡后汉杰出的天文学家,南阳西鄂(今河南省南阳县)人.生于汉章帝建初三年(公元78年),死于汉顺帝永和四年(公元139年).他曾制作“浑天仪”和“候风地动仪”.当时人都惊佩仪器制作的精妙.“浑天仪”用水转动,星宿出没与天象密合.“地动仪”制成后,忽有一龙机发动,就是指示要有地动,当时洛阳城中没有地震的感觉,于是学者认为仪器无用.但在几天之后,果有陇西地震消息传来,人们这才惊佩其才能,这确是当时中国及全世界最高的科学成就.张衡不但是天文学家,他还是个文学家,曾作“两京赋”以讽刺当时的奢侈风尚,构思十年始成.他的作品表现
Zhang Heng Han outstanding astronomer, Nanyang West Hubei (now Nanyang County, Henan Province). Born in Han Dynasty Zhang Di three years (AD 78), died in four years Yongshen Emperor (AD 139). He had produced “Armillary cemetery ” and “when the wind to move the instrument.” At that time, people were surprised at the exquisite instrument production. “Armillary celestial instrument ” water to rotate, celestial bodies and celestial phenomena closely. “ Long machine to start, is to indicate the need to move, when there is no earthquake in Luoyang city feeling, so scholars think the instrument useless .But in a few days, fruit Longxi earthquake news came, people only this admiration for its ability, this is indeed At that time, China and the world at that time the highest scientific achievements.Zhang Heng is not only an astronomer, he is still a writer, has made ”two Beijing Fu" to satirical at the time of the luxury style, the concept of ten years into the beginning of his performance