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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.

Rainbows are illusions

Types of Optical Illusions

Forced perspective image Pisa tower

Forced Perspective

Superior mirages

Inferior and Superior Mirages, and Fata Morgana

Christmas candle

Grandma's placemats with a christmas candle show a dirty optical illusion

Source/credit: BigPappa21

There is probably no explanation needed for this case of pareidolia. The Christmas candle and balls on these placemats speak for themselves.

More optical illusions:

Headless Man
God of all Cats
Bicycle wheels on a truck
Reflective bird
Cat defies gravity
Calm Lake
Boiling a bird
Floating Dog
  • Pareidolia
  • Physical illusions
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The shadow of this cameraman on the shirt of the man on the right creates a dirty optical illusion

Foreshadowing

a dirty mind

The monument to Karla Havlíček Borovský, a famous Czech journalist, poet and writer, was naturally enhanced by wasps in 2022.

Naturally enhanced

a dirty mind