You see circle from the blue-violet spots, which on the turn disappear, as if moving in a circle. Direct view into the cross lines in the center, observing in this case by the peripheral vision the fact as they disappear spot. If you do everything correctly, then you will see, that in the circle dvizhetsya the spot of green color. You do not remove view, and violet spots will disappear entirely after a certain time, and will remain only running in the circle green! Just stare at the middle and all the pink dots will eventually dissapear and u will only see he green dot
The reason why it does that is because of negative colors. When you look at a light.. it burns a negative image of it in your eyes. Green and Purple are negative colors... opposite of eachother. And the grey in the backround is the middle color between black and white. Therefore as the green spins around the purple the purple SHOULD turn green but with the grey middle color in the backround, it turns them invisable. Crazy isnt it? *studyed color theory*
