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the Necker cube and impossible cube. Both on one image since: they are related they are often confused -- easy comparison Created by Tarquin. SVG version...
This image is a derivative work of the following images: Necker cube and impossible cube.svg licensed with Cc-by-sa-3.0, GFDL, LGPL 2010-05-08T13:30:29Z...
Necker cube, taken from en.wiki Taken from en:Image:Necker_cube_and_impossible_cube.PNG, cropped, and uploaded. History of the original file on en.wikipedia:...
History of the original file on en.wikipedia: 16:24, 7 October 2002 . . Tarquin (2749 bytes) (Drawing of the Necker cube and impossible cube) English...
