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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

Rorscharch inkblot

What Optical Illusions Reveal about You

Prehistoric ambiguous illusion

The history of optical illusions in art

Black hole

black hole in a bed
Original credit: woodgie2

This black hole that is warping spacetime on a duvet is just a black cat sleeping curled up. Black cats are famous for being hard to photograph, also called ‘void’ in some online groups.

More optical illusions:

Monkey Selfie
Plane Crash
Strained Expression
Sunken police car
Camouflaged kitty
Unsuspecting Amputee
Floating either way
Painting the sky
  • Pareidolia
  • Physical illusions
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Confusing pants

Confusing pants

People

one armed cat

One armed cat

Cats