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Knowledge Cats Dirty Minds
Distortion Objects Mirrors

Knowledge

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

The Dress blue black white gold

Color Constancy Illusions

Parallax effect

Parallax Effect

How to create optical illusion photos (for social media)

Strained Expression

Credit: Isaac Cordal on Diminutos (via WaybackMachine)

This is a test for an urban installation projecting shadows with the city lighting, done by Isaac Cordal. The strained expression on the face was not an accident.

Here is another of his tests, posted on his WordPress site.

Isaac Cordal strainer art 

 

More optical illusions:

Footprint in the sand
Parking ramp
How many?
NASA doctored photos?
Collage illusion of ship
Back to School
Inappropriately Dressed
Giant lamps
  • Pareidolia
  • Physical illusions
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These deadly stairs look wrong for a second, until you blink. If you can see it only in one way, just scroll up and down and you will see the other way appear.

Deadly stairs

Stairs

Penrhyn Castle in Wales looks like a swamp monster

Swamp monster

Buildings