Optical Illusions

What's real and what's a trick played on us by our own eyes?

I can't promise you won't need an aspirin or a nap after taking a look at this stuff, but what I can promise is that you'll look at everything with an entirely new perspective for the rest of the day. Isn't that a good thing?

Is the image below animated? Where is it moving exactly? Are you willing to bet on it?

Aoccdrnig to rscheearch at Cmabrigde Uinervtisy, it deosn't mttaer in waht oredr the ltteers in a wrod are, the olny iprmoatnt 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.

Are the gray lines between the black and white blocks slanted, or parallel to each other?

If you're not sure, hold up a piece of paper or a ruler to it.

In reality...

A and D are the same color.

B and C are the same color.