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Eyecon – Optical Illusions

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Knowledge Cats Dirty Minds
Color Constancy Reflection Impossible objects

Knowledge

Facts, science and history of optical illusions.
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Squirrel Stereogram

Stereograms

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

Sword-billed Hummingbird

sword-billed hummingbird
Credit: 9VoltGorilla

This is NOT a sword-billed hummingbird, but rather a normal hummingbird perfectly lined up with the crack on the floor.

More optical illusions:

Footprint in the sand
Floating either way
Plane Crash
Firefall
Hovering Car
Goofy Tree
Bride kissing a fish
Square shadow
  • Pareidolia
  • Physical illusions
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impossible woodwork

Impossible woodwork

Objects

dirty mind illusion with an exxxtra leg

Exxxtra leg

a dirty mind