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- Best Optical Illusion of the Year http://www.scientificamerican.com/gallery_directory.cfm?photo_id=B5B09611-E7F2-99DF-37B57709D6F8FB20 10 comments
- As far as optical illusions go, this one takes the cake. http://www.scientificamerican.com/gallery_directory.cfm?photo_id=b5b09611-e7f2-99df-37b57709d6f8fb20 299 comments science
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