Eyes and lenses compared. This diagram is from the 1630 edition of the work 'Rosa Ursina', by the German Jesuit astronomer Christoph Scheiner. Scheine

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Eyes and lenses compared. This diagram is from the 1630 edition of the work 'Rosa Ursina', by the German Jesuit astronomer Christoph Scheiner. Scheiner was the co-discoverer of sunspots and published his work in 'Rosa Ursina', which became the standard treatise on the subject for more than a century. The work contained numerous observations and also a detailed account of his methods and apparatus. Here, he is comparing natural and artificial lenses.

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Size: 3887px × 4387px
Photo credit: © ROYAL ASTRONOMICAL SOCIETY/SCIENCE PHOTO LIBRARY / Alamy / Afripics
License: Licensed
Model Released: No

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