• 3D Painted Rooms - 2Loop.com
  These rooms are painted so that, when looked at right, optical illusions will appear. Very cool.
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• Exploratorium
  ScienceArtHumanPerception
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• eChalk colour perception: This is the most amazing optical effect in the world
  Our perception of color is strongly affected by the coulors surrouning it. In fact it is possible to perseive two identical colors as being very different is the are placed on different backgrounds.
  Quite simply these are some of the most staggering optical effects I have ever seen. I guarantee you will not believe your eyes. eChalk's online optical illusions, educational games, teaching resources and lesson activities for interactive whiteboards and data projectors will inject some fun into your classroom.
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• Optical Illusions
  eBaum's World - Flash Cartoons, Funny movies, funny pictures, Jokes, Prank phone calls and more
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• Magazine Faces Optical Illusion
  Mighty Optical Illusions
  Internet's Biggest Optical Illusion and Scary Illusions Database. Dedicated to visual phenomena, spot the object, scary, real life illusions, magic tricks, and puzzles.
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• Mighty Optical Illusions
  
  Internet's Biggest Optical Illusion and Scary Illusions Database. Dedicated to visual phenomena, spot the object, scary, real life illusions, magic tricks, and puzzles.
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• Optical Illusions and Visual Phenomena
  
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• Soothing Beans Optical Illusion
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• The Secret Life of the Brain : 3-D Brain Anatomy
  History of the Brain · 3-D Brain Anatomy · Mind Illusions · Scanning the Brain, The Episodes:. Choose an Episode, The Baby's Brain, The Child's Brain ...
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• Optical Illusions
  Impossible Objects, Upside-Downs, Surprising Effects ... Optical Illusions. Curiosities and Visual Effects ... Idea: From the book. Incredible Optical Illusions...
  Impossible Objects, Upside-Downs, Surprising Effects - M.C.Escher and Others who made Optical Illusions
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