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SandlotScience
SandlotScience is not just another site with a few illusions. SandlotScience takes you beyond 2D with real-time, interactive 3D demonstrations. It's an amusement park for the mind. Over 100 original exhibits.

Cool Optical Illusions
A cool collection of Optical Illusions pictures & unique optical illusions desktop wallpaper.

Grand Illusions
Grand Illusions takes an enquiring approach to optical illusions and scientific toys, and the principles that lie behind them. From the psychology of seeing to the mysteries of magic mirrors, new articles with a general appeal will appear regularly.

Lightness Demonstrations
Lightness Perception and Lightness Illusions. interactive movies based on a paper by Edward H. Adelson.

The Exploratorium's Online Exhibits
Online versions of The Exploratorium's famous exhibits. From San Fransico's museum of science art and human perception.

Visual Illusions
General survey of types of illusions, with graphic examples

NIEHS Kids Page
Kids Page Fun with Optical Illusions -- presented by the National Institute of Environmental Health Sciences as a means of introducing kids to science and research interests.

Some of these sites require...
  Flash Shockwave QuickTime

 

 

Mighty Optical Illusions
Internet's Biggest Optical Illusion Database. Dedicated to visual phenomena, real life illusions, magic tricks, and puzzles.
 


Optical Illusions & visual phenomena
The stress here is on relative novelty and interactivity, in combination with a scientific background. Regularly updated.

Akiyoshi's illusion pages
Many works of Akiyoshi Kitaoka. Designs around standard illusions crafted to maximise the illusory effect.

Eluzions' Optical Illusions
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.

Optical Illusions
Perception of reality is influenced by psychological states of mind or trances.

Skytopia
An intriguing selection of old, new and exclusive optical illusions. Pictures are often enhanced via the use of 3D and through animation.

Hall of Illusions

  • Impossible Figures and Objects
  • Ambiguous Images
  • Motion Ambiguity
  • Distortion Illusions
  • Camouflage Illusions
  • Funny Places
  • Stereo Illusions

 


Rainbow with Waterfall - Optical Illusion from StareClips.com


 

 

Rotating Illusion - Pink Eye Trick
Are you sure you really see it disappear?

If your eyes follow the movement of the rotating pink dot, the dots will remain only one colour - pink.
However if you stare at the black
+ in the center, the moving dot turns to green.

Now, concentrate on the black
+ in the center of the picture.
After a short period, all the pink dots will slowly disappear, and you will only see only a single green dot rotating.

It's amazing how our brain works. There really is no green dot, and the pink ones really don't disappear.
Proof enough that we don't always see what we think we see...