Trick of the eyesight |
What is the mistake
It sees why, and the phenomenon to do how that the size, length, and the direction, etc. are different to see it though it must not be there at all though it is the same size.
Do you see the figure below?
B will look longer though the line of A and B of [1] is the same lengths.
It queues up to tell the truth in parallel though the center is distorted and two red lines of [2] are gotten.
The left will look larger though it is a size as which both of two circles at the center of [3] are the same.
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Thus, it is said, "Optical illusion" to seem to differ actually, and calls the figure where the optical illusion is caused "Optical illusion figure". The mechanism that the one is seen is closely related of eyes and the brains each other, elaborately made, and there is unexpectedly fragile like this one side, too.
"It is seen what" might be unexpectedly unreliable.