optical illusions

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• - Interactive illusions, including Benham's disk and other illusions involving motion.
  
• - Illusions organized by category, including blind spot, blink effect, bordering, chromatic adaptation, colorblindness, and others.
  
• - A multimedia museum of optical and sensory illusions, with on-line demonstrations and explanations.
  
• - Interactive illusions from the exploratorium.
  
• - Presented by the National Institute of Environmental Health Sciences. A collection of illusions.
  
• - From the Department of Ophthalmology and Visual Science at the University of Illinois, a collection of illusions and after images.
  
• - Includes a new image every week demonstrating stereograms.
  
• - Includes anomalous motion illusions.
  
• - Interactive animations and optical illusions that respond to user's input.
  
• - Collection of optical illusions, brain teasers and games.
  
• - Contains many optical illusions, illustrating a wide range of visual anomalies and surprising optical effects. A free screensaver, posters, and educational explanations are also provided.
  
• - Collection of illusions and other mind teasing oddities. Includes illusions that you can make.
  
• - Optical illusion art, news, history, copyright and foundation information.
  
• - Small selection of images by the artist.
  
• - Interactive optical illusions, games, science projects, fun puzzles, and distortions.
  
• - Java applet, including other illusions, such as an animated Necker cube.
  
• - Collection of high quality optical illusions that come with clear explanations.