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Interesting optical illusion

 
I saved the image and cut the 2 squares out and put them side by side and they are in fact the same yet no matter how much I look at the picture I just can't see the two as being the same shade.

This is really quite cool and I wish I could come up with an engineering application for it.
Wednesday 24 October, 2007 08:02 PM
 
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"A good scientist is a person with original ideas. A good engineer is a person who makes a design that works with as few original ideas as possible" - Freeman Dyson