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Knowledge

Facts, science and history of optical illusions.
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Squirrel Stereogram

Stereograms

Bezold effect fabric

Bezold Effect

Billie Eilish drawn in 3D by Stephan Pabst

Anamorphic optical illusions

Dude, where is my car?

Pigeons looking for their car
Original credit: TastyTalk

This photo of two pigeons on a ledge is an example of Forced Perspective. Because the ledge has become indistinguishable from the car park behind it, the pigeons look enormous.

 

More optical illusions:

Giant Broccoli
Firefall
Calm Lake
Painting of the Ocean
Parrot
Live Wallpaper
North Sentinel Tribesman
Bald friends
  • Pareidolia
  • Physical illusions
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photo doctored by NASA

NASA doctored photos?

Cars

Legs up over the shoulders

Legs up

People