Aoccdrnig to rscheearch at Cmabrigde Uinervtisy, it deosn’t mttaer in waht oredr the ltteers in a wrod are, the olny iprmoetnt tihng is taht the frist and lsat ltteer be at the rghit pclae. The rset can be a toatl mses and you can sitll raed it wouthit a porbelm. Tihs is bcuseae the huamn mnid deos not raed ervey lteter by istlef, but the wrod as a wlohe.
I know it is funny, and I actually enjoyed it, but it is something that could trigger problems for unsuspecting people. I think you should add a warning. It won’t blow the effect.
I like the way the second and third ones wobble when they are scrolled, but the text is particularly impressive.
The Exploratorium in San Francisco has some nice ones, including one of those rooms with bogus perspective that makes a person near the back of the room look like a giant compared to one in the front (near the viewport).
Not to detract from the innocent fun of the illusions, but lots of books on cognitive science use optical illusions to make the point that what we see really is a mental construct based on visual cues and clues, rather than some kind of direct perception of nature. The second chapter of the book that I’m currently reading, A Brief Tour of Human Consciousness, is entitled “Believing is Seeing”. I won’t go into it here (no, no, don’t thank me), but it’s pretty interesting stuff.
It was some vampire chick that poped up and screamed with one of those try to find what is wrong with this picture. That is like the scary link. My brother and I call the vampire chick “Freaky Lady.”