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Peripheral
Vision demonstrates the range of individual fields of
vision. Visitors place their nose in the center of a
half-moon shaped table and look at a point (indicated
by a spring) across the surface of the table. A friend
positions a wooden block off to the side of the table,
far enough to the side so that it can't be detected.
Either a word or a symbol is painted in color on the
block. As the friend slides the block slowly around
the edge of the table towards the center, visitors can
first perceive motion, then color, then shape. The visitor
will find that reading is possible only in the very
center of the vision field.
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