The Einstein Hat Competition! https://momath.org/hatcontest/

Thanks to Jane Street for supporting this video. https://www.janestreet.com/join-jane-street/

Stan Wagon has written an article about all of the maths involved in the bridge: https://community.wolfram.com/groups/-/m/t/2917199

Designed by Thomas Randall-Page. https://www.thomasrandallpage.com/

Engineering by Alfred Jacquemot (then of Price & Myers). https://www.pricemyers.com/about-us/people/alfred-jacquemot

You can ride the MoMath square-wheel bike in NYC or Stan Wagons's at Macalester College in Minneapolis. https://momath.org/16-square-wheeled-trike-3/ https://www.macalester.edu/mscs/multimedia/squarewheeledbike/squarewheelbike/

Visit Cody Dock in East London. https://codydock.org.uk/

Huge thanks to my Patreon supporters. They keep my bridges rolling. https://www.patreon.com/standupmaths

CORRECTIONS - None yet, let me know if you spot anything!

Filming by Alex Genn-Bash and Christopher Brooks Editing by Christopher Brooks Written and performed by Matt Parker Produced and drone flying by Nicole Jacobus Scene stealing by that cat Music by Howard Carter Design by Simon Wright and Adam Robinson

MATT PARKER: Stand-up Mathematician Website: http://standupmaths.com/ US book: https://www.penguinrandomhouse.com/books/610964/humble-pi-by-matt-parker/ UK book: https://mathsgear.co.uk/collections/books/products/humble-pi-signed-paperback