Remember “Muller-Lyer Arrows”? Later, I also posted “Lines no.2” which is exactly the same type of an illusion. Today I give you another one of this type, yet this time in real life. Observe this corner shop; first picture is taken outside of it, the other is from the same window, just taken inside of the object. Yet, the second line looks longer, even though we know they are of the same size!
As I’ve heard this was taken from a book Professor Gregory put out in 1973. “Gregory, R. L. (1973) Eye and brain (2nd ed.). New York, McGraw-Hill”