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Two optical illusions

  1. Oct 18, 2003 #1

    Ivan Seeking

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  2. jcsd
  3. Oct 18, 2003 #2
    Forgive my ignorance, but how do the optical illusions above work?
  4. Oct 18, 2003 #3


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    Whoa! I've seen the black dots before, but the spinning wheels are pretty trippy...
  5. Oct 18, 2003 #4
    Check out these sites for more illusions and explanations:

    Optical Illusions: Editor Selected ResultsAbout Optical Illusions
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