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Knowledge Cats Dirty Minds
Geometry Mirrors Shadows

Knowledge

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

Expanding Black Hole Illusion

Mind-blowing facts about optical illusions

The Dress blue black white gold

Color Constancy Illusions

Bezold effect fabric

Bezold Effect

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:

Up or Down?
Grate View of Central Park
Not a brick
Ominous bird
Amish Men using a Truck
Floating tree
Legs up
Mesmerizing eye
  • Pareidolia
  • Physical illusions
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Vintage mirror

Vintage mirror

Mirrors

tree eye

Eye of a tree

Trees