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Knowledge Cats Dirty Minds
Physics behind them Dogs Forced Perspective

Knowledge

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

Billie Eilish drawn in 3D by Stephan Pabst

Anamorphic optical illusions

Rorscharch inkblot

What Optical Illusions Reveal about You

Squirrel Stereogram

Stereograms

Dogs sharing a mouth

Source/credit: BeanzMeanzBranston

These two good boys seems to blend. With the same fur it is hard to distinguish where one dog ends and the other begins. But this is the solution to this optical illusion: 

Two dogs optical illusion solution
Imgur

More optical illusions:

Baby Bigfoot
A Lego bed
Funny tree with a face
A Galaxy Far Away
A Starry Night Sky
Floating helmet and wheel
This Patio
Canoe in the Winter
  • Pareidolia
  • Physical illusions
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Escher drawing IRL

Escher drawing IRL

Cars

Caterpillar illusion

Beautiful Caterpillar

Birds