Knowledge

Facts, science and history of optical illusions.
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Parallax Effect

Inferior and Superior Mirages, and Fata Morgana

How do optical illusions work?

Transparent Car Key

Source/credit: adamebgr

This transparent car key isn’t made of crystal. It is just perfectly reflective.

The make your brain see reality instead of the optical illusion, look at the keyring going through the hole. If the key was transparent, you would see the keyring behind the key. However, you can see its reflection.

More optical illusions:

NASA doctored photos?

Bent over the desk

Perfectly Polished

Cars

Calm Lake

Cars