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Zollner Illusion

http://en.wikipedia.org/wiki/Image:Zollner_illusion.gif

An optical illusion. The long lines are parallel.

July 22, 2006December 2, 2010 | Oddities

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Futility Closet is a collection of entertaining curiosities in history, literature, language, art, philosophy, and mathematics, designed to help you waste time as enjoyably as possible.

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