Перепост из hojja_nusreddin
"If you watch the above images from your seat in front of the computer, Mr. Angry is on the left, and Mrs. Calm is on the right.
Get up from your seat, and move back 12 feet, and PRESTO - they switch places.This proves that we may not be seeing what's actually there, all the time!"
It is said this illusion was created by Phillippe G.Schyns and Aude Oliva of the Univ. of Glasgow.