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1850多年前,在中华大地上生活着一位伟大的科学家,他就是举世闻名的地震仪之父——张衡.张衡博学多才,精通天文、历法、数学,也擅长文学,历任郎中、尚书侍郎,两度任太史令,前后凡14年.公元132年,张衡在洛阳制成世界上最早的测量地震的仪器——候风地动仪,这比欧洲的地震仪早1700多年.此外,他还创制了最早的用水力推动的天文观测仪器.他创立的系统的完整的天文学说——“浑天说”,提出宇宙是无限的见解,对我国古代天文学的发展有卓越贡献.
1850 years ago, living in China on earth a great scientist, he is the world-famous father of seismograph - Zhang Heng .Bo many learned, master of astronomy, calendars, mathematics, but also good at literature, served Lang, Zhongshu Lang, Twice as Renshi Shiling, before and after all 14 years in AD 132, Zhang Heng made in Luoyang in the world’s earliest measurement of the earthquake instrument - the wind seismograph, which seismograph earlier than the European seismograph more than 1700 years.In addition, he also created The earliest hydromechanical astronomical observation instrument.He founded the system as a complete astronomical theory - “muddle” said that the universe is an infinite view, the development of ancient Chinese astronomy have made outstanding contributions.