Post AwnbWC3IpmXwS8ZYIq by negative12dollarbill@techhub.social
 (DIR) More posts by negative12dollarbill@techhub.social
 (DIR) Post #AwnbCtPDw9qR7Ucemm by sk76@mastodon.ie
       2025-08-03T07:33:52Z
       
       0 likes, 1 repeats
       
       Engraving of "The moon, viewed in oblique sunlight" (1806)Image: John Russell / Wellcome Collection
       
 (DIR) Post #AwnbWC3IpmXwS8ZYIq by negative12dollarbill@techhub.social
       2025-08-03T07:48:38Z
       
       0 likes, 0 repeats
       
       @sk76 How can a full moon be "in oblique sunlight"?
       
 (DIR) Post #AwnbWDEgQxFC7iu9gG by publius@mastodon.sdf.org
       2025-08-03T17:05:39Z
       
       0 likes, 0 repeats
       
       @negative12dollarbill @sk76 Well, it can't. You could never photograph such a thing. Modern photos of such a character are made by stitching together dozens of slices to get an approximately equal angle of illumination over the globe, the projection of which appears as a disc. Mr Russell used memory and imagination, and probably dozens or hundreds of sketches taken under different phases of illumination, to get the same effect.
       
 (DIR) Post #AwncKHF1obrX1ewGA4 by vnikolov@ieji.de
       2025-08-03T17:14:49Z
       
       0 likes, 0 repeats
       
       Indeed.Compare also to hand drawings of plants in botanical reference books, which aren't drawings of actual plants, but very carefully done illustrations of the type.@publius @negative12dollarbill @sk76