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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

Rainbows are illusions

Types of Optical Illusions

Prehistoric ambiguous illusion

The history of optical illusions in art

Cat defies gravity

cat defies gravity

Source/credit: pedroburon

This physical optical illusion is caused by a reflection. The cat is sitting on the left side of the glass door, while the box is placed on the right side of the door.
The reflection perfectly places the cat in the box.

More optical illusions:

Parked too long?
Goofy Tree
Smile!
Dog jumping a giant hole
Eyeglasses
Bar Stools
Skull
Parquet Floor
  • Pareidolia
  • Physical illusions
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cat in box optical illusion

If it fits…

Cats

That's the cat's pajamas

Thats the cat’s pajamas

Cats