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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

Locomotives in their natural habitat

Pareidolia (Seeing faces)

Rorscharch inkblot

What Optical Illusions Reveal about You

Big Bird

Big Bird illusion

Source/credit: TeddyRivers

This is a classic example of Forced Perspective, with the bird being much closer than it seems at first. 

 

More optical illusions:

Gravel flower bed
Big Daddy
Bird in the Sky
Absolutely impossible
Beautiful Caterpillar
One-Punch Cat
Cat portal
The same image
  • Pareidolia
  • Physical illusions
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Ghostrider

Ghostrider

Bicycles

Escher drawing IRL

Escher drawing IRL

Cars