Curvature of the Earth. Left: because of curvature, M cannot be seen by ship at B, but can be from ship at C. Right: Man at C cannot see ship as far off as if he were on top of tower, D. Engraving of 1764
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Creative#:
TOP09099003
Source:
達志影像
Authorization Type:
RM
Release Information:
須由TPG 完整授權
Model Release:
NO
Property Release:
NO
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No
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