Scintillating Grid Illusion
From Tigwiki
Here's an optical illusion discovered by E. Lingelbach in 1994. The dots at intersections appear to change properties. For the full story see the Wikpedia entry at http://en.wikipedia.org/wiki/Grid_illusion
Here's an optical illusion discovered by E. Lingelbach in 1994. The dots at intersections appear to change properties. For the full story see the Wikpedia entry at http://en.wikipedia.org/wiki/Grid_illusion