This is cool
 

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.








http://img234.imageshack.us/img234/4...tcircle7bi.gif

Maybe it's because I'm colorblind but it doesn't work for me - If I stare and concentrate only on the black I soon see the pink(?) circle of dots with a complete circle of green(?) dots slightly offset from the pink - the flashing dot does keep flashing though.

WOAH! Thats pretty nuts. Bumping for the general enjoyment of other members.

wow that's freakin' cool! I wonder why that does what it does. Especially the disappearing one.