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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.

Prehistoric ambiguous illusion

The history of optical illusions in art

Superior mirages

Inferior and Superior Mirages, and Fata Morgana

Is this a bird or a rabbit?

Ambiguous illusions

Trippy Stairs

Mirror Step by Derek Paul Boyle

Source/credit: Booooooom

This is an art installation by Derek Paul Boyle and features a mirror step on outdoor stairs.
(It may be art, but can potentially cause many problems; slipping, tripping and upskirt voyeurism.)

More optical illusions:

Shadow
Boiling a bird
Camouflaged kitty
Transparent Car Key
Mind-boggling Floor
A couple of cars in a parking lot
How many?
Floating tree
  • Pareidolia
  • Physical illusions
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Cat with a hole in its body

Cat with a Hole

Cats

Sexy Birch Tree

Sexy Birch

a dirty mind