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Knowledge Cats Dirty Minds
Ambiguous Impossible objects Mirage

Knowledge

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

Prehistoric ambiguous illusion

The history of optical illusions in art

Can animals see optical illusions? Hosico cat shows it with optical illusion rug

Animals and optical illusions

Billie Eilish drawn in 3D by Stephan Pabst

Anamorphic optical illusions

Flapping in the wind

Curtains flapping in the wind

Source/credit: Henu3gumb

These curtains are flapping in the wind. But your dirty mind may be reminded of something else.

More optical illusions:

Beautiful Caterpillar
Find the black car
Floating cat head
Gravity hills
Screaming up or down?
Back to School
Big bottoms
Delivery car
  • Pareidolia
  • Physical illusions
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Dog with bone

Bone

a dirty mind

Hidden cat

Cats