05/16/2007 10:44:57 AM |
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interesting illusions
Blind Spot (Optic Disk)
Close
your right eye and look directly
at the number 3. Can you see the
yellow spot in your peripheral
vision? Now slowly move towards
or away from the screen. At some
point, the yellow spot will
disappear.
Note how far you are from the
screen when the yellow spot
vanishes. Repeat the experiment
looking at a larger and then
again at a smaller number. Did
you notice the difference in
distance from the video screen
when the spot disappeared?
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