Thread: Optical Illusion Puzzle
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Old 07-19-2010, 08:24 AM   #20
pdurrant
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Quote:
Originally Posted by TGS View Post
Maybe it's this:
Spoiler:
What appear to be green and blue spirals are actually spirals of the same colour - the effect is achieved by the different coloured fine lines that cross the spirals. Our brain wants to see these fine lines as the same colour but in order to do so it has to see the spirals as different colours.
Yes, well done TGS.
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