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The two vertical lines are the same length,
but the arrows at either end of both lines creates
the illusion that the second line is longer.


1)Which man is bigger?

Actually they are both the same size!



2)****Muller-Lyer Illusion (Interactive) from http://www.questacon.edu.au/illusions.html

4)***Poggendorff Illusion (Interactive) from http://sunsite.anu.edu.au/Questacon/il_poggendorff.html

5)***Zollner Illusion(Interactive) from http://sunsite.anu.edu.au/Questacon/il_zollner.html

6)***Herring Illusion (Interactive)from http://sunsite.anu.edu.au/Questacon/il_herring.html

7)***Titchener Illusion(Interactive) from http://sunsite.anu.edu.au/Questacon/il_titchener.html

8)***Another test from http://www.unb.ca/web/units/psych/MullerLyer.htm

9) Many kinds of illusions from http://www.nmsi.ac.uk/on-line/outofsight/illusions.html

10)Here, another one from http://www.yorku.ca/eye/m-lillu.htm




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