Image: Roger Bacon optics01
![Roger Bacon optics01](/images/thumb/b/bd/Roger_Bacon_optics01.jpg/303px-Roger_Bacon_optics01.jpg)
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Original image (336 × 664 pixels, file size: 151 KB, MIME type: image/jpeg)
Title: Roger Bacon optics01
Usage Terms: Public domain
License: Public domain
Attribution Required?: No
Image usage
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