| Optical Illusions
Believe only half of what you see.....
A pAgE Of VIsUAl CONfUsIOn
Certain patterns confuse your eyes and brain, causing you to misjudge the size of a circle, or the length of a line. Though hundreds of optical illusions have been recorded and studied over the last century, people still do not agree on why these patterns cause errors in perception. Scientists are fascinated by illusions because, by figuring out how the eye and brain can be tricked, they can better understand the normal workings of the visual system. As Purkinje, a noted 19th-century Czech physiologist, put it: "Deceptions of the senses are the truths of perception."
Are the lines straight or bent? Use a rule to find out.
Where are the black dots in the picture?
Which of the two vertical lines is the longest? Measure them with a ruler
What's wrong with this?
WIERD!
Are the diagonal lines parallel? Measure them and you will find that they are!
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