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Knowledge Cats Dirty Minds
Reflection Geometry Videos

Knowledge

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

Locomotives in their natural habitat

Pareidolia (Seeing faces)

sorrowful rock face pareidolia

How do optical illusions work?

How to create optical illusion photos (for social media)

Troll in Allegany State Park

troll in the park

Source/credit: spacemanspiff8655

This troll in Allegany State Park in New York has turned into stone. 

Mimetoliths are rocks that appear to take on familiar shapes, due to pareidolia.

More optical illusions:

Tetanus Rainbow
Giant Broccoli
Reflected rice fields
Cargo in the sky
Skull
Dude, where is my car?
Trees wearing a tutu
Flaming Hot Girl
  • Pareidolia
  • Physical illusions
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Prehistoric snake

Prehistoric Snake

Rocks