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Knowledge Cats Dirty Minds
Pareidolia Distortion Rocks

Knowledge

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

Billie Eilish drawn in 3D by Stephan Pabst

Anamorphic optical illusions

Expanding Black Hole Illusion

Mind-blowing facts about optical illusions

Is this a bird or a rabbit?

Ambiguous illusions

Cat’s face

cat face refraction
Original credit: HighLowJumpKick

The lenses in the glasses cause refraction, which is a bending of the light. And the cat’s face looks much too small for its body.

More optical illusions:

Portal
Bald friends
Water drop
Boiling a bird
Misbehaving Shadow
Schrödinger's Scat
Collage illusion of ship
Larger than life
  • Pareidolia
  • Physical illusions
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Kamasutree

a dirty mind

Crow on the kitchen floor

Crow

Birds