Optical Illusions

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Optical Illusion - Pink and Green Dots
After first-hand viewing of a cool optical illusion of the summer moon, I got this in my e-mail today from my Dad. (He likes to forward stuff… this one’s pretty cool…) 🙂

The instructions in the e-mail were as follows:

  • If your eyes follow the movement of the rotating pink dot, the dots will remain only one color, 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. This should be proof enough, we don’t always see what we think we see.

Thanks, Dad! 🙂


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