O p t i c a l   I ll u s i o n s

Green Dot

If your eyes follow the movement of the rotating pink dot, you will only see one color, pink. 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 of time, all the pink dots will slowly disappear, and you will only see a green dot rotating if you're lucky! 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.

Black Dots

Watch the image and black dots will magically appear at each intersection.

Cotton Candy

Stare at the black dot for a minute (the longer the better), and watch the colored cotton candy disappear!

 Wagon Wheel

Stare at the image and move your head forward and back while concentrating on the center dot.