| An optical illusion | 2004-07-21 13:56 3 comments |
 by Flemming FunchIs square A and B the same color or different colors? Want to bet? They ARE the same color, but almost all of us can't see it, before it has been proven to us, and we've stared at it another five minutes. Your brain is so good at filtering out the effects of shadows so that we can make the best possible guess at what we're seeing. So good that we actually can't see what is really there, but only what is supposed to be there. The illusion is most obvious in the large version. See here for the details, and proof of why it is so. If you still don't believe it, you'll have to download the image and cut out little pieces of it in a graphics program, and put them next to each other. |