Sunday Morning Illusion

These are two identical photographs of the Leaning Tower of Pisa but they look like they’re leaning in different directions.

The short reason is that they do not have a common vanishing point so our brain assumes that they are not parallel. The long reason can be found in this PDF by the researchers that first described the phenomenon.

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Ryan Consell is a skeptical artist, tap-dancing armorer, juggling scientist, rock-climbing writer, sword-fighting math teacher, uni-cycling gamer, fire-spinning academic and devout nerd. He has a Masters in Applied science, most of a bachelors in Fine Arts, and a very short attention span. He is the author of How Not to Poach a Unicorn and half of the masochistic comedy duo that is Creative Dissonance. Follow him on Twitter @StudentofWhim

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