Optical Illusions: Why You See What You See
A popular dictum states, "seeing is believing". Most people understand that to be true enough, most of the time - but there are exceptions to this rule, as with most rules. From the simplest drawings to complex photographs and artwork and even in reality, optical illusions have always been around. Through out this paper you will be given examples of optical illusions, and learn why it is you see them.
The first illusion is known as the Muller-Lyer illusion. This illusion was discovered in 1888 and is quite famous (Komorotskaya). The picture below is an example of this illusion:
In this case the question is: are the two horizontal lines equal in length. The correct answer for this would be "yes." You can double check by measuring each side with a ruler. The reason most people would think that the top is slightly bigger, is because our brain makes mistakes about the relative depths of the two lines. We are used to seeing outside......
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