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Eyecon – Optical Illusions

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Knowledge Cats Dirty Minds
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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

Prehistoric ambiguous illusion

The history of optical illusions in art

Billie Eilish drawn in 3D by Stephan Pabst

Anamorphic optical illusions

Her Only Fan

This man with glasses in front of a woman is her only fan. The image is a very dirty optical illusion. Or is it your mind?

Credit: deleted post on r/WTF

This man with glasses in front of a woman is her only fan. The image is a very dirty optical illusion. Or is it your mind?

The oldest source seems to be Reddit/WTF. However, the original image has since been deleted on the internet. 

More optical illusions:

Giant Ship
180 degrees
Disappearing trailer
Bicycle wheels on a truck
Footprint in the sand
Door handle
A Beard Model
Reflected rice fields
  • Pareidolia
  • Physical illusions
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This is a big daddy dog looking proud

Big Daddy

Dogs

These deadly stairs look wrong for a second, until you blink. If you can see it only in one way, just scroll up and down and you will see the other way appear.

Deadly stairs

Stairs