Author Topic: Did you know that ....  (Read 2091 times)

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Offline Theo Gottwald

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Did you know that ....
« on: March 12, 2012, 12:15:31 PM »
Did you know that ....
the two squares marked with "A" and "B" ( have the same color?



Source: http://web.mit.edu/persci/people/adelson/checkershadow_illusion.html