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Excerpt from The Past and Future of the Peking Central Observatory Armilla, the Abridged Armilla, the Celestial Globe and the Gnomon, were constructed after the old models in the second year of Tseng Tung (1437 ad.) and with the exception of the Celestial Globe which was lost subsequently, the other three are still preserved in the present Observatory. Though their

Title : The Past and Future of the Peking Central Observatory (Classic Reprint)
Author : Kao Lou
Language : en
Rating :
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Type : PDF, ePub, Kindle
Uploaded : Apr 03, 2021

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