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Knowledge Cats Dirty Minds
Art Mist Food

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

Billie Eilish drawn in 3D by Stephan Pabst

Anamorphic optical illusions

The Dress blue black white gold

Color Constancy Illusions

4 people

4 people but only 3 arms

Source/credit: BalrogBunghole

In this optical illusion, there are 4 people. The person on the left is wearing a camo jacket that really does its job.
Look at the four bottles and find the arms attached to it.

More optical illusions:

Pipe Cleaner Arms
Cat's face
Cat a log
North Sentinel Tribesman
Unsuspecting Amputee
Calm Lake
Beach Yeti
Some shiny legs
  • Pareidolia
  • Physical illusions
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Black cat looks like a shadow

Shadow

Cats

Reflective bird

Reflective bird

Birds