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					Optical Illusions

                                By:
                       Samaria Price
                    Shawnee Pegues
           Table of Contents

History
How optical illusions work
Color illusion
Mind illusion
How illusions relate to geometry
Other examples of optical illusions
Resources
History
     The first people to
      use optical illusions
      were Greeks. Their
      temples had slanted
      roofs and bulged
      walls. You could
      notice these features
      up close but from a
      distance the temple
      seem as if it were
      perfect.
How optical illusions work
              The illusions we see are
               actually unexpected
               observations.
              When we look at an
               object we see what our
               mind is expecting to see,
               not what is really there.
              Our brain tells the eyes
               what it thinks should be
               where we are looking and
               that’s what we end up
               thinking is there.
                 Color illusion
 Try to say the
  COLOR you see not
  the word.
 The reason it is so
  hard is because one
  side of your brain is
  telling you to look at
  the color and the
  other side is telling
  you to read the word
                  Mind illusion
 When you read this
  you probably see “a
  bird in the bush”
 Look at it again it
  says “a bird in the the
  bush”
 This is because your
  mind has grown to
  speed read which
  means you can fill in
  the blanks
  How illusions Relate to Geometry
 To make optical
  illusions you need to
  use various types of
  shapes
Other examples of optical illusions
Resources
 http://ccl.northwestern.edu/netlogo/models/models/Samp
  le%20Models/Art/Optical%20Illusions.png
 http://www.webstuffscan.com/wp-
  content/uploads/2006/12/rotsnakemini.gif
 http://www.sightsavers.org/images/f_1826optical-illusion-
  1.jpg
 http://blifaloo.com/illusions/impossible.php
 http://www.indianchild.com/images/bird_in_the_bush.jpg
 http://www.brainteasercentral.com/images/illusions/1.gif

				
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