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Knowledge Cats Dirty Minds
Color Constancy Boats Landmarks

Knowledge

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

Squirrel Stereogram

Stereograms

sorrowful rock face pareidolia

How do optical illusions work?

The Dress blue black white gold

Color Constancy Illusions

Clown

clown snake optical illusion pareidolia

Source: WOW_Peach_Girl

This clown is not painted on a rock.

The face you see is part of the pattern on a snake, that is coiled inside the nest.

More optical illusions:

Firefall
Puffy Face
Gravel flower bed
Painting of the Ocean
Hidden ad in advertisement page
Long-haired Dog
Next to the boat
A Little Army
  • Pareidolia
  • Physical illusions
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unfortunate shadow penis

Unfortunate Shadow

a dirty mind

cracked wall caused by snake

Cracked Wall

Snakes