Impossible Penrose Trangle - optical illusion with dice

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Uploaded by on Apr 6, 2011

The "impossible" tribar, also known as the Penrose triangle. This is a fantastic optical illusion, now available as a 3D-printed model.

A truly three-dimensional object, only made possible with a very special design trick. Please be aware that unlike other attempts to create a Penrose triangle, this model does not have any hidden openings nor hidden twists.

See Zie: http://www.trompe.nl/

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