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Warped Squares Optical Illusion

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This is an optical illusion where a checkerboard seems to be warped, but by turning the disks or small squares from white to black, you can check that the squares are not deformed.

Contributed by: Enrique Zeleny (February 2014)
Open content licensed under CC BY-NC-SA

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Reference

[1] Optical Illusion: Check Your Brain! [Video]. (Dec 17, 2009) www.youtube.com/watch?v=QKCSBkdEUXQ.

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