Publisher's Synopsis
Excerpt from The Past and Future of the Peking Central Observatory
Abridged Armilla, the Polaris Circle, the Concave Hemisphere, the Vertical Circle, the Stellar Dial, &c., &c. After the capture of Peking by the Ming troops the newly made instruments were transported to Nanking and the observations at Peking were suspended for the time being. But after Cheng Tsu, the second Emperor of the Ming dynasty, had rechosen Peking as the Northern Capital, four instruments, the Ancient 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 component parts are somewhat incomplete, yet they give us some idea of the mechanical dexterity of our forefathers. About the Publisher Forgotten Books publishes hundreds of thousands of rare and classic books. Find more at www.forgottenbooks.com This book is a reproduction of an important historical work. Forgotten Books uses state-of-the-art technology to digitally reconstruct the work, preserving the original format whilst repairing imperfections present in the aged copy. In rare cases, an imperfection in the original, such as a blemish or missing page, may be replicated in our edition. We do, however, repair the vast majority of imperfections successfully; any imperfections that remain are intentionally left to preserve the state of such historical works.
