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

These are the public entries for this link:

• Checkershadow Illusion
  By Chuy in Optical Illusions with checkershadow illusions optical
• Checkershadow Illusion
  By abb in Folders > Misc with checkershadow illusion misc
• Checkershadow Illusion
  By airpocket in Public bookmarks with illusions optical science
• Checkershadow Illusion
  By fjordaan in Public bookmarks with checkershadow fun illusion optical

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