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Knowledge Cats Dirty Minds
Impossible objects Birds Food

Knowledge

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

sorrowful rock face pareidolia

How do optical illusions work?

Bezold effect fabric

Bezold Effect

Prehistoric ambiguous illusion

The history of optical illusions in art

Sunken police car

sunken police car

Source/credit: Tampa Police Department

This police car is not sunken in the pavement of the road. Instead there was a lot of flooding and the dirty water in the ditch looks just like the road. 

More optical illusions:

A Galaxy Far Away
Blueberries
Cat portal
NASA doctored photos?
Sun Dogs
Big bottoms
Bar Stools
Shoebill?
  • Pareidolia
  • Physical illusions
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Tree with square shadow

Square shadow

Shadows

Sun dog optical illusion real

Sun Dogs

Nature