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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

Prehistoric ambiguous illusion

The history of optical illusions in art

Bezold effect fabric

Bezold Effect

The Grinch

The grinch cat optical illusion

Source/credit: marmusha

This Grinch illusion is a grumpy cat looking out of the window. His reflection fits nicely onto the Chrismas tree outside, making him look like the Grinch.

 

More optical illusions:

Half Assed
Ominous bird
Toy Cars
Too many legs
Bar Stools
Exotic Bird
Broken Chair
Artificial Leather
  • Pareidolia
  • Physical illusions
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Snake cat

Snake cat

Cats

Flying cat

Flying cat

Cats