Aaargh! My head!
Feast your eyes on this image and then be amazed to learn that Square A and Square B are exactly the same colour!
Don’t believe me?
Reckon it’s a con?
Well, here’s the same image with a mask covering the rest of the scene:
Incredible, isn’t it?
The optical illusion was created by Prof Adelson (M.I.T.) and you can see more examples of mind-boggling aaargh-my-head-hurts illusions here, here and here
But don’t do it after a skinful of beer or mind bendng drugs!
