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Colour and shadow illusions depend on the way we
see and compare things like
contrast, colours
and the edges of things.
Look at the example below, stare at the
middle of picture with black squares (the
picture on the left) for 15-30 seconds. Did
you really see those dots appear at the corners
of the squares? What happens if you focus on a
dot? Now look at the middle of the picture with
the white squares (the picture
on the left) . Do you see dots again? Do you see little shadows in the
intersections? What colour are they? |
