Modelling impossible Escher pictures in 3D

Most people will be familiar with Escher’s impossible pictures depicting water perpetually flowing downhill in a closed loop or triangles which appear to join up opposite sides. Gershon Elber has discovered that some of these impossible figures can be made as 3D objects – the optical illusion only works from a specific angle, however. He has made some short videos of the models being rotated, so you can see how the illusion works.

(via boingboing)

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