 
          Find a  range of amazing optical illusions right here at Science Kids. Enjoy unique images designed to deceive the eye and test the brain.
              
          Photo name: Ebbinghaus Illusion 
                Picture category: Illusions
                  Image size: 20 KB 
                    Dimensions: 740 x 455 
              Photo description: This image is an Ebbinghaus optical illusion  (also known as Titchener circles). The illusion is related to size perception.  Despite the fact that the inner circles are exactly the same size, the inner  circle on the right appears to be larger because it is surrounded by smaller  circles. This optical illusion is similar to the Delboeuf illusion.