Do check out my video with Adam Savage over on Tested: https://www.youtube.com/watch?v=s_F4uD8wAs0 Yes, I'm back in NYC for An Evening of Unnecessary Detail on Sunday April 14. https://www.eventbrite.com/e/matt-parker-an-evening-of-unnecessary-detail-tickets-847453715877?aff=oddtdtcreator Pre-order my new book! https://mathsgear.co.uk/collections/books/products/love-triangle-by-matt-parker-signed The excellent graphics of spinning dodecahedrons were made by Ben Sparks. You can see the GeoGebra file here: https://www.geogebra.org/m/yhkepkbc Some more details about space diagonals on Math Stack Exchange. https://math.stackexchange.com/questions/4181398/space-diagonals-of-a-dodecahedron Huge thanks to my Patreon supporters. They keep my polyhedra intersecting. https://www.patreon.com/standupmaths CORRECTIONS - None yet, let me know if you spot anything! Filming and editing by Alex Genn-Bash Written and performed by Matt Parker Laser cutting by Lisa Mather Extra graphics by Ben Sparks Produced by Nicole Jacobus Music by Howard Carter Design by Simon Wright and Adam Robinson Training on using a bandsaw by Adam Savage 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