Optical Illusions

Try out these optical illusions

Click on the image above to test to see if box A and and box B are the same shade of gray.

Does it look like it's moving? It's not.

Do the orange lines above appear parallel or slanting?

They're parralel.

Is this a spiral or a series of circles?

Books in Our Library

You Won't Believe Your Eyes!

Optical Illusions

Concentrate on the plus in the center, do you suddenly see the moving green spot?

Beau Lotto: Optical illusions show how we see

How Your Eyes Read Text

I cdnuolt blveiee taht I cluod aulaclty uesdnatnrd waht I was rdanieg. The phaonmneal pweor of the hmuan mnid! Aoccdrnig to a rscheearch at Cmabrigde Uinervtisy, it deosn’t mttaer inwaht oredr the ltteers in a wrod are, the olny iprmoatnt tihng is taht the frist and lsat ltteer be in the rghit pclae. The rset can be a taotl 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. Amzanig huh? Yaeh, and I awlyas thought slpeling was ipmorantt.

Al Seckel: Powerful visual illusions

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More Titles in our Library

Now You See It, Now You Don't!Classic Optical Illusions