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Knowledge Cats Dirty Minds
Snakes Flowers Mist

Knowledge

Facts, science and history of optical illusions.
See all the articles or scroll down to see what you came for.

Expanding Black Hole Illusion

Mind-blowing facts about optical illusions

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

Animals and optical illusions

Parallax effect

Parallax Effect

Potemkin Stairs

Potemkin Stairs makes use of forced perspective

Source/credit: Oleksandr Malyon via Wikipedia

These Potemkin Stairs in Odessa (Ukraine) connect the city to the harbor.

The lower step are much wider than the ones on the top, making it appear much longer when looking from the bottom. Forced perspective is a common technique in architecture.

 

 

More optical illusions:

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Big dog
Footprint in the sand
Headless Woman
Laurel the Tree
Headless Man
UFO
Hand through a cat
  • Pareidolia
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This deformed building is a temporary art installation to hide renovation work

Deformed Building

Buildings

The underwater waterfall in Mauritius is a landmark that is an optical illusion

Underwater Waterfall

Landmarks