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Ebbinghaus Illusion

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The two red sphere’s are the same size. Also called the Titchener Illusion.

Source: H.Z. Ebbinghaus, 1897

2 comments… add one
  • Hannah Minardi April 27, 2006, 8:44 pm

    Wow!It really looks like the one on the right is smaller.

  • jaced.com April 27, 2006, 9:17 pm

    Hi Hannah!

    I know! It does, huh? :)

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