Zhang Heng, with the courtesy name Pingzi, was a Chinese polymathic scientist and statesman who lived from AD 78 to 139, during the Eastern Han dynasty. He was educated in the capital cities of Luoyang and Chang'an and achieved success as an astronomer, mathematician, seismologist, hydraulic engineer, inventor, geographer, cartographer, ethnographer, artist, poet, philosopher, politician and literary scholar. He began his career as a minor civil servant in Nanyang and eventually became Chief Astronomer and then Prefect of the Majors for Official Carriages.
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Source Zhang Heng (Wikipedia)
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Source Seismometer (Wikipedia)
Source South-pointing chariot - Wikipedia
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1. Zhang Heng (Wikipedia)
IntroductionQuote, Introduction
Zhang Heng (Chinese: 張衡; AD 78-139), courtesy name Pingzi, formerly romanized Chang Heng, was a Chinese polymathic scientist and statesman who lived during the Eastern Han dynasty.
Seismometer (Wikipedia)
WikipediaInvented: Seismometer, IntroductionQuote, Invented: Seismometer, Introduction
It was invented by Zhang Heng, a Chinese mathematician and astronomer.
South-pointing chariot - Wikipedia
Invented: South-Pointing Chariot, Article bodyQuote, Invented: South-Pointing Chariot, Article body
In the Later Han period, Zhang Heng re-invented it, but owing to the confusion and turmoil at the close of the dynasty it was not preserved.
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