Your eyes! what your eyes can do?

Have a clear look at the following picture!


Seeing things moving around?? Never stop? Magic??
Well, take the steps below, and you'll find it interesting!!

Let me tell you .... it is not animated. Your eyes are making it move. To test this, stare at one spot for a couple seconds and everything will stop moving. Or look at the black center of each circle and it will stop moving. But move your eyes to the next black center and the previous will move after you take your eyes away from it....!!

Haha! very interesting right?? Please comments on it, thanks!!