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Knowledge Cats Dirty Minds
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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.

Superior mirages

Inferior and Superior Mirages, and Fata Morgana

Locomotives in their natural habitat

Pareidolia (Seeing faces)

Prehistoric ambiguous illusion

The history of optical illusions in art

Separation

This photo is not a composite, but rather zoomed in until it is hard to recognize what you are seeing. The orange color on the right is a retaining wall.

Credit: 大野健一

This photo is not a composite, but rather zoomed in until it is hard to recognize what you are seeing. The orange color on the right is a retaining wall.

This is the retaining wall in Kenichi Ohno's viral photo of an egret.After the photo won the 39th Asahi Photo Contest in 2023, it went viral online.

More optical illusions:

Rainbow Road
Peacock with its head in the ground
Beautiful Caterpillar
Cross-stitch Cats
Cup Half Full
Tsunami in Ohio
Impossible woodwork
Beach at Night
  • Pareidolia
  • Physical illusions
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This photo is upside down. It is a nearly submerged SUV in a lake with many bystanders.  After this image was first posted to Reddit in January 2020, it has become a popular meme with the caption: "The difference between a UFO and a female driver is 180 degrees."

180 degrees

Cars

This is a classic dirty optical illusion created by three little pigs

Three little pigs

a dirty mind