Projecting the sun's image through a refracting telescope onto a screen in a darkened room (camera obscura) in order to study sunpots. From Selenographia by Johannes Hevelius (Gedani, Gdansk. Danzig, 1647). Engraving.

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Creative#:

TOP09160348

Source:

達志影像

Authorization Type:

RM

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須由TPG 完整授權

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NO

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NO

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No

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