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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.

Forced perspective image Pisa tower

Forced Perspective

Parallax effect

Parallax Effect

Squirrel Stereogram

Stereograms

Shadow Avatars

 

Source/credit: Kostya Terentev

This is filmed from directly above. with the light from the side so that you can see only the shadows of the people.

Imagine how hard it is to get the shadow avatars exactly right to create this amazing optical illusion.

More optical illusions:

Sunken police car
Shit music
110 pound squirrel
Ominous bird
Sun Dogs
Reflected rice fields
This Patio
Giant Moon
  • Pareidolia
  • Physical illusions
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This fire demon signals the apocolypse

Fire demon

Nature

Wall drilling forced perspective illusion

Wall drilling illusion

Shadows