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Knowledge

Facts, science and history of optical illusions.
See all the articles or scroll down to see what you came for.

Rorscharch inkblot

What Optical Illusions Reveal about You

Forced perspective image Pisa tower

Forced Perspective

Billie Eilish drawn in 3D by Stephan Pabst

Anamorphic optical illusions

Square Fire Hydrant

Square Fire Hydrant
Credit: Nillows

This square fire hydrant is actually round, but the harsh shadow line make it look like it is square.

More optical illusions:

Winter Tornado
Firefall
Skydiving Corgi
Skull
Big Dog
Big Seagull
Shadow
Square shadow
  • Pareidolia
  • Physical illusions
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Bus Back Crash

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AI flower bed or camouflage?

AI flower bed?

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