Login / Register

How thick is a three-sided coin?

Thanks! Share it with your friends!


You disliked this video. Thanks for the feedback!

Sorry, only registred users can create playlists.

 Find Related Videos  added


Go check out the puzzles over on Brilliant!

Use the URL above to help support this video and get 20% off the paid premium versions.

Once you’ve done that: help us calculate the thickness of a three-sided coin!

The bonus video explains how you can get involved. We expanded the audience participation aspect loads after we filmed the main video; which is why a whole second video was required.

All the links for the various resources are over here.

Here is the form to sign-up and ask nicely to borrow Hugh’s coins.

Buy or print your own cylindrical coins.

Report your data back to us.

And if you are really bored, here is over an hour of Hugh and I flipping coins. Look, it was late at night.

- None yet. Let me know if you spot anything!

Thanks to my Patreon supporters who made these ridiculous projects possible. Here is a random subset:

Edmund Harriss
Mikko Manninen
Magesh Jayapandian
Sjoerd Wennekes
Kelly Havlik
Cameron Ball

Support my channel and I can make more videos:

Music by Howard Carter
Filming and editing by Trunkman Productions
Audio mastering by Peter Doggart
Design by Simon Wright

MATT PARKER: Stand-up Mathematician
Maths book:
Nerdy maths toys:

Post your comment


Be the first to comment