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Knowledge Cats Dirty Minds
Dogs Clouds Chairs

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

How to create optical illusion photos (for social media)

Locomotives in their natural habitat

Pareidolia (Seeing faces)

Misaligned Arrow

Misaligned arrow

Source/credit: adamgasth

The tiles are misaligned, but the arrow is perfectly straight. 

More optical illusions:

Up or Down?
Angel
Catfusion
A Festival for Ants
Two giants
Heavy Metal Concert
Skywalker
Impossible woodwork
  • Pareidolia
  • Physical illusions
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Ghost boat

Ghost Boat

Boats

Dog big teeth

What Big Teeth you Have

Dogs