Computer graphics

Peter Harpley

A great number of impossible triangles form complex knotted image here.

Artist's RedBubble profile http://www.redbubble.com/people/peterharpley

Improbable by Entirely Possible

The image was found at http://www.redbubble.com/people/peterharpley/art/1266193-1-improbable-but-entirely-possible