Refracting telescope on a very simple equatorial mounting being used in a darkened room (camera obscura) in order to project the Sun's image so that sunspots could be studied. From Rosa Ursina by Christoph Scheiner (Bracciano, 1630). Engraving.
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Details
Creative#:
TOP09160354
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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