Sunday, October 2, 2016

Sander Parallelogram

Sander Parallelogram 

Sander Parallelogram - The Sander illusion or Sander's parallelogram is an optical illusion described by the German psychologist Friedrich Sander (1889–1971) in 1926. However, it had been published earlier by Matthew Luckiesh in his 1922 book Visual Illusions: Their Causes, Characteristics, and Applications.
Sander Parallelogram

Note:The two lines in purple have the same length; Sander's Parallelogram, also known as "Sander Illusion" is an optical illusion described by the German psychologist Friedrich Sander.
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