Birthdate: 0078 AD
Birthplace: Nanyang, China
Died: 0139 AD
Zhang Heng, a prominent Chinese polymathic scientist and statesman of the Han dynasty, excelled in astronomy, mathematics, seismology, engineering, invention, geography, and literature. Rising from a minor civil servant to Chief Astronomer and Palace Attendant, Zhang’s expertise in mechanics led to significant inventions such as the water-powered armillary sphere and seismoscope. His contributions to astronomy, star cataloging, and poetry were highly esteemed during his time, earning him posthumous recognition and comparisons to the renowned Ptolemy.
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