[wpdevart_youtube]UiQQ3kLtyiM[/wpdevart_youtube]

Some of these optical illusions from Quirkology are just silly, but there are a few that are pretty fun to do.
This video doesn’t only show you the illusions, but also explains how to perform them yourself.

It’s almost like explaining how to perform magic tricks, but it eventually all comes down to the fact that it exploits the weakness of the human eye.