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Knowledge Cats Dirty Minds
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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.

sorrowful rock face pareidolia

How do optical illusions work?

Billie Eilish drawn in 3D by Stephan Pabst

Anamorphic optical illusions

Squirrel Stereogram

Stereograms

Cyber Poppy

The eye of a cyber poppy

Source/credit: Joanna Chaumontoise

This image of a cyber poppy is NOT AI. It is an actual photo by Joanna Chaumontoise, who photographs Macro close-ups of flowers. 

More optical illusions:

Fight against Cervical Cancer
Square shadow
Geometric Shapes
Lake View Garden
Half Assed
Gmork
Artificial Leather
Nobody's cow
  • Pareidolia
  • Physical illusions
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Goofy tree with a face

Goofy Tree

Trees

An Ent named Laurel

Laurel the Tree

Trees