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Facts, science and history of optical illusions.
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Superior mirages

Inferior and Superior Mirages, and Fata Morgana

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

Animals and optical illusions

Squirrel Stereogram

Stereograms

Square Fire Hydrant

Square Fire Hydrant
Credit: Nillows

This square fire hydrant is actually round, but the harsh shadow line make it look like it is square.

More optical illusions:

Painting the sky
Giant Christmas Cat
What Big Teeth you Have
Cat Accident
A Festival for Ants
Portal
In Search for Water
Parked too long?
  • Pareidolia
  • Physical illusions
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Bus Back Crash

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