Uploaded December 2019 | Updated September 2026, 2 weeks ago

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The Ri Lectures are on BBC4 and iPlayer now:
bbc.co.uk/programmes/b00pmbqq

They'll be on the Ri channel a month later:
youtube.com/user/TheRoyalInstitution

Thanks to Jane Street, pateron supports and all viewers! Here's to another year of mathematics videos.
janestreet.com
patreon.com/standupmaths

Pre-order the US edition of my math book Humble Pi. Cheers!
bit.ly/humblepi

Download the excel file from the video:
dropbox.com/s/0c3hx00am0naetx/n-sync.xlsx?dl=0

This is the paper: "Synchronization of Globally Coupled Nonlinear Oscillators: the Rich Behavior of the Kuramoto Model"
http://go.owu.edu/~physics/StudentResearch/2005/BryanDaniels/kuramoto_paper.pdf

Sorry, Think Maths have not made any teacher resources for this video, but check out their resources for all my other videos here: think-maths.co.uk/standupmaths-videos

CORRECTIONS
- None yet, let me know if you spot any mistakes!
- At 10:46 that is the lid falling off my pan. Not really a mistake, but I thought I'd mention it.

Thanks again, as always, for Jane Street being my principal sponsor.
janestreet.com

Thanks to my Patreon supporters who help make these videos possible. Here is a random subset:

Lucie Roux
Emily Dingwell
Richard Dickins
Fernando Gaete Ferrari
Josiah Thornton

Support my channel and I can make more maths videos:
patreon.com/standupmaths

Filming and editing by Matt Parker
Design by Simon Wright

MATT PARKER: Stand-up Mathematician
Website: standupmaths.com
Maths book: wwwh.umble-pi.com
Nerdy maths toys: mathsgear.co.uk