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Optical Illusions

SUMMARY: Your eyes will play tricks on you when viewing these optical illusions and other phenomena.

I'm sure you've seen optical illusions before, such as the staircase that keeps going up or the picture of a lamp that also looks like two faces.

Michael Bach, a German University professor, has created a webpage with 61 optical illusions and "visual phenomena" you can browse. Some of these, like the 'stepping feet' experiment, are quite interesting (turn off the color to create a surprising jumping effect). Plus check out "Fraser's Spiral", which isn't actually a spiral but your mind plays tricks to make it look like one!

Although an interesting site, a couple of the visuals might be a little disturbing and not appropriate for the kiddies.

Optical Illusions and Visual Phenomena - http://www.michaelbach.de/ot/

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The MalekTips website was created in 1998 by Andrew Malek of Envision Programming. The page's goal is to freely disperse computer-related tips, hints, and informative articles. Tips are organized to be easy to find, and are presented clearly, in easy-to-understand language. MalekTips also provides information and links to public-domain, open source, freeware, shareware, and commercial software available for download. < more >