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121 = Bi-annuals and Diagonals

November 10, 2025 · 52 min

Show notes

🗓️ Does bi-weekly mean every two weeks or twice a week?

🧊 What is the name of the line between two opposing corners of a cube?

🕑 And daylight will be saved with some Any Other Brightness.


For more on Rupert and Nopert Shapes:

Euler Brick: https://mathworld.wolfram.com/EulerBrick.html

Tom7 - Rupert's Snub Cube and other Math Holes: https://www.youtube.com/watch?v=QH4MviUE0_s

Tom7’s Print files for Platonic, Archimedean and Catalan Solids: https://makerworld.com/en/models/1617011-platonic-archimedean-and-catalan-solids#profileId-1706419


Follow Dr Ben Whittle, The Excellent Etymologist, on Instagram! @schnebwhittle


Joey Parrish and his Sega Slides https://github.com/joeyparrish/sega-slides


See Matt on tour! http://standupmaths.com/shows

Specifically, see Matt in London on Monday 1st December! https://lwtheatres.co.uk/whats-on/matt-parker/


Or if you would like to see Bec in Brighton on Monday 1st December, tickets are here: https://www.komedia.co.uk/shows/john-luke-roberts-geoffrey-chaucers-mediaeval-christmas-festivitye/


Here’s how to get involved with Matt’s Moon Pi Kickstarter: https://www.kickstarter.com/profile/standupmaths


And here’s how to volunteer for Calculate Pi By Hand with Matt: https://forms.gle/w44THpNJ3jWUPqHy6


Join us on Patreon for early releases and our monthly bonus podcast I’m A Wizard. If you’re already on Patreon and have a creative Wizard offer to give Bec and Matt, please comment on our pinned post!


If you want to (we’re not forcing anyone) please do leave us a review, share the podcast with a friend, or give us a rating! Please do that. It really helps.


Finally, if you want even more from A Problem Squared you can connect with us and other listeners on BlueSky, Twitter, Instagram, and on Discord.

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