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Knowledge Cats Dirty Minds
Cars Color Constancy Reflection

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

Prehistoric ambiguous illusion

The history of optical illusions in art

Can animals see optical illusions? Hosico cat shows it with optical illusion rug

Animals and optical illusions

Phoenix rising

This is the volcano Mount Etna in Sicily erupting. The bright lava against an almost invisible mountain looks like a Phoenix (or Mutalisk)

Source/credit: honkay

This is the volcano Mount Etna in Sicily erupting. The bright lava against an almost invisible mountain looks like a Phoenix (or Mutalisk)

More optical illusions:

Pump it up!
Giant Ship
Baby Bigfoot
Misbehaving Shadow
Dog Log
Toe socks?
Dog head floating
Snake cat
  • Pareidolia
  • Physical illusions
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Knot of snakes illusion by the atticus atlas moth.

Knot of snakes

Snakes

Cliff at great heights above a highway at Gulek Castle, Turkey.

Great heights

Landmarks