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Ebbinghaus Illusion
Category: Size and Distance | Added: June 4, 2009 | 5 comments
The Ebbinghaus Illusion, also known as Titchener circles is an image of two circles with additional circles around them. In this case the orange circle on the left is surrounded by large blue circles and the orange circle on the right is surrounded by small blue circles. But which is larger, the orange circle on the left or the orange circle on the right ? The answer is of course - they are both the same size.

Ebbinghaus Illusion
Image Credit: This image is believed to be in the public domain.


                    

Comments ( 5 )

Posted by Pam on June 14, 2009
This is a good one. If you measure them they are both 1 inch across...amazing.
Posted by popo on March 17, 2010
Do you know the psychological explaination as to why this illusion occurs?
Posted by piya on August 14, 2012
ya they are same. how amazing is this? wow
Posted by \_ {] $ 3 R z on October 29, 2012
What Pam said
Posted by andrea diergaardt on July 25, 2013
awaesome i will win the science fair i believe it and i believe in God!

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