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Knowledge Cats Dirty Minds
hidden message Dogs Mist

Knowledge

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

The Dress blue black white gold

Color Constancy Illusions

How to create optical illusion photos (for social media)

Prehistoric ambiguous illusion

The history of optical illusions in art

Screaming up or down?

Original credit: malletgirl91

The cat is yelling upstairs. In the full image, you can see the shadow of the top step.

Cat yelling upstairs?

More optical illusions:

Half Assed
Floating helmet and wheel
Baby Ostrich
Pixeled sky
Impossible woodwork
Broken Chair
North Sentinel Tribesman
Bird Strike
  • Pareidolia
  • Physical illusions
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Toki is flying through the woods

Flying through the woods

Cats

photo doctored by NASA

NASA doctored photos?

Cars