Another cool pic!

Amazing optical illusion! If ur eyes follow the movement of the rotating pink dot, u will only see 1 colour, pink. However if u stare at the black "+" in the centre, the moving dot turns to green. Now concentrate on the black "+" in the centre of the pic. After a short period, all the pink dots will slowly disappear, n u will only see a green dot rotating. Its just so fascinating how our brain works. There really isnt any green dot n the pink ones really dont disappear.