The simplest way to describe an optical illusion if that it is a 'trick' that our eyes play on us. We seem to see something that ins't really so. Or we may be able to see the same object in two completely different ways. If our eyes are working properly, and they are instructions for seeing exactly what is before us, how can they play such tricks on us? This is because vision is not a physical process. It is not like photography, for instance, which works mechanically. Vision is really a phychological experience, bacause it is not the eyes that see, but our brain.
Fact file
Our minds love to play tricks on us Wee see things in the light of experience. Unless our mind can use the clues it has learned to interpret what we see, we can become very comfused. How many legs has this elephant got?
wow awsame .thats not a gif but its moving when i look it. smart creation