Your eyes see one thing, your mind believes another!
Welcome our guest blogger Stefan Van den Bergh, who runs the "Planet Perplex" website. He writes: "I've been fascinated by illusions and everything like it for as long as I remember. Over the years I've made several sites about them, and built an extensive collection." It's been long since we had an article about optical illusions, so it's time for another installment in this highly popular series.
The last not-quite-moving one is also a classic but too good to leave it out. Stare at the black dot and move your head back and forth from the screen. The wheels will start turning ...
This little animation is fast becoming very popular - and no wonder: when you first look at the spinning girl, her rotation is probably clockwise. But if you start to concentrate on her shadow instead, suddenly her rotation switches to counter-clockwise! It may take some time, but the moment it happens, you are going to be genuinely surprised...
clipped from: www.darkroastedblend.com 
