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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

Billie Eilish drawn in 3D by Stephan Pabst

Anamorphic optical illusions

Bezold effect fabric

Bezold Effect

Painting of the Ocean

painting of the ocean

Source: jebleez

The sky in Nebraska looks like a painting of the ocean. 

These clouds are called Asperitas, a new cloud type proposed in 2009 by the Cloud Appreciation Society.

More optical illusions:

Migrating horses
Snake cat
Enormous cat napping
This Patio
Missing paw
Cat's face
Swamp monster
Headless player
  • Pareidolia
  • Physical illusions
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parquet floor or dangerous stairs?

Parquet Floor

Floors

cloud shaped like an angel

Angel

Clouds