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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.

Rainbows are illusions

Types of Optical Illusions

The Dress blue black white gold

Color Constancy Illusions

Rorscharch inkblot

What Optical Illusions Reveal about You

Cat portal

This cat portal has just opened up in the television. Or is it just an optical illusion?

Source/credit: Limp_History4032

This kitty just arrived from another universe, through the cat portal in the TV. But actually it is just an optical illusion. Look closely. To the left of the cat is their tail, and you can even see the reflection of the cat on the TV

 

More optical illusions:

Shadow
Firefall
Floating Dog
Cat's face
Toe socks?
Cat Accident
Model ship on poles
Bicycle wheels on a truck
  • Pareidolia
  • Physical illusions
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Echidna kitten

Cats

The perspective of this photo create the optical illusion of a giant dog

Larger than life

Dogs