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Müller-Lyer illusion
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English
Etymology
Devised by Franz Carl Müller-Lyer (1857–1916), a German sociologist, in 1889.
Noun
thumb|Two sets of arrows that exhibit the Müller-Lyer optical illusion. The set on the bottom shows that all the arrows are of the same length.|200px
An optical illusion consisting of a stylized arrow whose midpoint appears to be closer to the tail end.
en eponyms
en Optical illusions