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Hung Shih-nian. 1979: Zhang Heng (78–139)’s windvane of Han Dynasty is only a seismograph. Chinese Journal of Atmospheric Sciences, 3(4): 388-389. DOI: 10.3878/j.issn.1006-9895.1979.04.12
Citation: Hung Shih-nian. 1979: Zhang Heng (78–139)’s windvane of Han Dynasty is only a seismograph. Chinese Journal of Atmospheric Sciences, 3(4): 388-389. DOI: 10.3878/j.issn.1006-9895.1979.04.12

Zhang Heng (78–139)’s windvane of Han Dynasty is only a seismograph

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