Troxler’s Fading

Miscellaneous 18 January 2013 0 Comments

Troxler's Fading

In 1804, an interesting effect was discovered by Ignaz Troxler.  He noticed that something strange would happen if you fixated your eyes on one particular point (see the red dot below) for about 15-30 seconds.   When doing so, images in your peripheral vision (the blurry blue circle below) would fade away and eventually disappear […]

Healing Grid Optical Illusion

Miscellaneous 5 October 2012 0 Comments

Healing Grid Illusion

The grid presented below looks normal in the center section but “broken” on the left and right sides.  Stare at the center of the rectangle for 15-30 seconds and notice what happens to the “broken” portions of the grid.  Do they seem to repair themselves before your very eyes? Ryota Kanai from Utrecht University in […]