Big MathsJam
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bigmathsjam.bsky.social
Big MathsJam
@bigmathsjam.bsky.social
Big MathsJam is the annual UK MathsJam Gathering - an opportunity to meet other maths fans and share puzzles, games and interesting problems. November 22-23rd 2025
Did you know we also have a MathsJam annual gathering in Oceania? The Oceania MathsJam Gathering (OMG) has shared this video of their 2025 public keynote talk, a fun talk on charts and data visualisation from Dr. Christoph Bartneck of Canterbury University, NZ:
OMG25 Keynote talk: Information Is Beautiful by Dr Christoph Bartneck
Abstract: In an age of fake news and misinformation, data visualisation has become essential for building bridges between experts and the general public. Creating not only truthful, but also functional, beautiful, and insightful visualisation is an art form. For far too long have we been plagued by,
youtu.be
December 3, 2025 at 12:33 PM
Attendees of this year's Big MathsJam UK Gathering should now have had a post-event email with links to session recordings and some follow-up info. We hope you all had a lovely time, and make sure you're on our mailing list to get the details for 2026! mathsj.am/ukg-mailin...
December 1, 2025 at 1:07 PM
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Arrived at #MathsJam on Friday to find my front door key tangled up in my keyring. Many mathematicians (>10) had a go at untangling it. No go.
Stupid o'clock Sunday morning, heading to check out as I had to miss the final day, I pull my keys from my back pocket. All untangled. #MathsJam trolling me.
November 23, 2025 at 7:58 PM
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I wanted to make a poster about this for the new Big #MathsJam feature, but I don't have a printer, so:
November 23, 2025 at 8:49 PM
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Also of potential interest to Big #MathsJam folk & other maths fans: don't forget to submit recent maths stuff ready for December's Carnival of Mathematics: aperiodical.com/carnival-of-...
Carnival of Mathematics
The Carnival of Mathematics is a monthly blogging round up hosted by a different blog each month. The Aperiodical will be taking responsibility for organising a host each month, and links to the mo…
aperiodical.com
November 23, 2025 at 9:12 PM
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Big #MathsJam -ers who took the train home today and are also movie fans might have recognised the railway station building from 1987's Superman IV.

Various other buildings in CMK were used as locations for bits of Metropolis in the movie.

www.bbc.co.uk/news/uk-engl...
Superman IV film recreated in Milton Keynes 30 years on - BBC News
An artist recreates 10 minutes of the 1986 film Superman IV: The Quest For Peace, where it was originally shot in Milton Keynes.
www.bbc.co.uk
November 23, 2025 at 9:29 PM
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Martin Whitworth says passports are size A6.5 #mathsjam
November 23, 2025 at 11:10 AM
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The real winner of my #mathsjam competition is me, who got all these incredible frog pictures!
November 23, 2025 at 1:14 PM
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Fabulous weekend at Big #mathsjam, sorry to have to leave before the end. I love the little bubble of maths joy I get to be part of.
November 23, 2025 at 1:46 PM
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@bigmathsjam.bsky.social is officially over! Many thanks to everyone who organised, contributed to it, maintained the Gather town remote space etc. #mathsjam #remoters 👏👏👏
November 23, 2025 at 2:28 PM
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Lovely weekend at #mathsJam . Thanks to all those who organised and those who gave talks. Hope to see you all next year! Safe journey home everyone.
November 23, 2025 at 2:46 PM
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Another excellent Big #MathsJam. Somehow I'm less tired than usual. Maybe it's the travel that does it‽
November 23, 2025 at 8:45 PM
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Had a lovely weekend at @bigmathsjam.bsky.social getting lots of mathsy inspiration from all the best people, but I'd be lying if I said that I wasn't also glad to be going home to destimulate!! Thanks so much to Colin Katie, Scroggs and everyone else who helped for a brilliant time! #Mathsjam
November 23, 2025 at 5:44 PM
And we're all done with the MathsJam UK Gathering for 2025! Thanks to everyone who came along and joined us - in-person or online - and who gave talks, volunteered to help or brought along interesting maths to share! Hope to see you all again next time!
November 23, 2025 at 4:04 PM
To start the final set of talks at #mathsjam, Vanessa Madu sharred her explorations of sequences of consecutive odd semiprimes. You can read her blog post about it here:
Rabbit Hole #2 - Consecutive *Odd* Semi-Primes | Vanessa Madu
What is the longest possible chain of consecutive odd semi-primes?
www.vanessamadu.com
November 23, 2025 at 2:37 PM
And to finish this session, we've announced the winners of the competitions - the bakeoff winners are now listed on the cakes page: mathsjam.com/gatheri...

November 23, 2025 at 12:39 PM
Starting the penultimate session of #mathsjam 2025, Kristin Ohlmann showed us how the digits of pi and tau can be used to improve visibility of her unicycle. And she's actually brought it with her to MathsJam! Here's her Python code:
Circles
Cloud Storage - Carl von Ossietzky Universität Oldenburg
cloud.uol.de
November 23, 2025 at 12:11 PM
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Why I'm not at Big Maths Jam in person ❤️
November 23, 2025 at 10:39 AM
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Hamish joins the other Mathscots at @bigmathsjam.bsky.social
November 23, 2025 at 11:22 AM
To kick off the second Sunday session at #mathsjam, Fredrik Motland Kirkemo shared a cool magic trick from G4G Europe, involving a set of clown cards with each clown wearing different coloured clothes.
November 23, 2025 at 11:25 AM
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Woke up to find the kids squabbling over who gets to watch the @bigmathsjam.bsky.social stream on the Nintendo Switch today #mathsjam
November 23, 2025 at 8:20 AM
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Day 2 of the Annual MathsJam Gathering! #mathsjam
November 23, 2025 at 9:13 AM
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For the first #MathsJam in *ages* I remembered my Mathscot: meet The Rat! I'm not sure what he's clambering on, there.
November 23, 2025 at 9:44 AM
It's Day Two of #mathsjam! We kicked off the first session of the day with Miles Gould, telling us all about dual numbers en.wikipedia.org/wik... You can find out more about them, and the magic of automatic differentiation, in this blog post by Dan Piponi http://blog.sigfpe.c...
November 23, 2025 at 10:13 AM