Tuesday, September 12, 2006

Gallery of Optical Illusions

German Professor Michael Bach has a total of 66 optical illusions and visual phenomena on his website. Each optical illusion comes with a description telling you what to do and observe, and an explaination on how it works. I like the Stepping Feet motion illusion in which two similar sized rectangles, one in blue and the other yellow, moving together in an identical speed, seem to step ahead of each other like two feet walking.

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