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Knowledge Cats Dirty Minds
Nature Forced Perspective Refraction

Knowledge

Facts, science and history of optical illusions.
See all the articles or scroll down to see what you came for.

Prehistoric ambiguous illusion

The history of optical illusions in art

Bezold effect fabric

Bezold Effect

Squirrel Stereogram

Stereograms

Splash!

milk splashing or dog with head in cup

Source/credit:Rhoniic

This image of a dog with its head stuck in a Starbucks cup creates the illusion of milk defying gravity with a splash, because only the white parts of the dog’s fur are visible in the dimly lit car. 

More optical illusions:

4 people
Footprint in the sand
Mind-boggling Floor
Fair Game
Pipe Cleaner Arms
The eye of the tower
Raw Chicken
Cat Head
  • Pareidolia
  • Physical illusions
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Vintage mirror

Vintage mirror

Mirrors

tree eye

Eye of a tree

Trees