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Knowledge Cats Dirty Minds
Mirrors Advertizing Color Constancy

Knowledge

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

Rorscharch inkblot

What Optical Illusions Reveal about You

Billie Eilish drawn in 3D by Stephan Pabst

Anamorphic optical illusions

How to create optical illusion photos (for social media)

If it fits…

cat in box optical illusion

Source/credit: 花憐

This physical optical illusion is caused by a reflection. The cat is sitting on the left side of the glass door, while the box is placed on the right side of the door.
The reflection perfectly places the cat in the box.

More optical illusions:

Trees wearing a tutu
Impossible Chairs
Dog jumping a giant hole
Beautiful Caterpillar
Portal
Tree Mural
Too many legs
How many?
  • Pareidolia
  • Physical illusions
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How many pipes in this geometrical illusion?

How many pipes?

Objects

cat defies gravity

Cat defies gravity

Cats