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Eyecon – Optical Illusions

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Knowledge Cats Dirty Minds
Snakes Stairs Refraction

Knowledge

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

Billie Eilish drawn in 3D by Stephan Pabst

Anamorphic optical illusions

Parallax effect

Parallax Effect

Rainbows are illusions

Types of Optical Illusions

Bent over the desk

A woman bent over a desk with her big butt in view

Source/credit: DrFetusRN

When you have seen the image more than 2 seconds, you will have noticed that this woman is not bent over the desk, and that the big butt is actually just the back of an office chair. 

 

More optical illusions:

Floating cat head
Big Dog
Heavy Metal Concert
Dog Head Mount
Trees wearing a tutu
Monkey Selfie
Transparent Car Key
Portal
  • Pareidolia
  • Physical illusions
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This fungus is named Xylaria polymorpha, but more commonly known as dead man's fingers. This example is a perfect illusion, with 5 digits and more shaped like a hand than other specimens. It really looks like a zombie is going to rise up from the ground.

Dead Man’s Fingers

Nature

The Gateway Arch in St Louis is an optical illusion. The arch is as tall as it is wide; 192 meters. But from nearly every angle it will seem much taller than it is wide.

Gateway Arch

Landmarks