Learn How to Make Your Own Ambiguous Arrow

January 10, 2019

By Richard Kaufman

Have you heard of the optical illusion The Ambiguous Arrow? It makes your head hurt. Learn more about the background here.

Here’s a video that demonstrates it and also reveals its workings.

And here’s a video by Matt Pritchard that explains how you can make your own Ambiguous Arrow with the cardboard tube from a roll of toilet paper.