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Carnival of Mathematics 197

The next issue of the Carnival of Mathematics, rounding up blog posts from the month of August, is now online at Math ∩ Programming.

Screenshot of Jeremy's blog showing Carnival of Mathematics 197

The Carnival rounds up maths blog posts from all over the internet, including some from our own Aperiodical. See our Carnival of Mathematics page for more information.

Mathematical Objects: A sheep, at least one side of which is black

Mathematical Objects

A conversation about mathematical jokes, humour and folklore inspired by a sheep, at least one side of which is black. Presented by Katie Steckles and Peter Rowlett.

The jokes sent to Peter on Twitter that we mention can be found in the replies to this tweet.

A black sheep in a field

Clopen Mic Night – new online maths variety show

Clopen mic night logo, showing a microphone with square and curved brackets emanating from it like sound waves, and the words 'Clopen Mic Night'

The team that brought you the 24 Hour Maths Magic Show last October are at it again, and are planning a semi-regular evening YouTube variety show called Clopen Mic Night, with short segments from a selection of mathematical guests, including comedy, music, demonstrations, magic, puzzles and art, showcasing some top maths communicators and hopefully providing a fun night in. The event is supported by Talking Maths in Public, a network for maths communicators based in the UK, and this first show will take place alongside their 2021 conference event.

It’s called Clopen Mic Night because it’s both an open mic night (in the sense that you’ll see a variety of different people doing different things) and a closed mic night (in that the organisers curate the line-up to ensure a variety of quality acts). If you’ve not encountered the concept of a clopen set, it describes a set that is both open and closed. Usually things are clopen for tedious technical reasons – the empty set and the whole set are both trivially clopen, and most interesting examples crop up in awkwardly-defined sets with non-standard topologies and distance metrics.

The first event is taking place on Thursday 26th August, from 8-9pm, on my YouTube channel, and you can watch along for free, join in with the chat, and drop a coin in our virtual tip bucket if you like what you see. This will hopefully be the first of many such shows (assuming it all goes well!) and for future shows we’ll be looking for acts to join us – anyone participating will also be able to get advice and feedback on their bit in various ways, and we’re hoping it’ll be a chance for people to try out fun new material and showcase the best maths communication has to offer.

For more information about the show, including the lineup for this first event, you can visit the Clopen Mic Night website and sign up for a reminder before each show so you don’t miss it. For updates on future events and how to apply to perform (once that becomes a thing), check the @ClopenMic twitter account.

Mathematical Objects: Plate of biscuits with Alison Kiddle

Mathematical Objects

A conversation about mathematics inspired by a plate of biscuits. Presented by Katie Steckles and Peter Rowlett, with special guest Alison Kiddle. What do you notice? What do you wonder?

Alison’s Noticing and wondering page.

We also mentioned A Problem Squared Episode 014 = Final Cheese Drama and Quick-Fire-O-Rama.

You can see Peter’s kitchen floor in this tweet.

Plate of biscuits described in the episode in two configurations.

Carnival of Mathematics 196

The next issue of the Carnival of Mathematics, rounding up blog posts from the month of July, is now online at ThatsMaths.

The Carnival rounds up maths blog posts from all over the internet, including some from our own Aperiodical. See our Carnival of Mathematics page for more information.

Aperiodical News Roundup – July 2021

Here’s a round-up of the latest mathematical news from the month of July 2021.


The Society for Industrial and Applied Mathematics, SIAM, has announced the winners of its 2021 prizes. Winners include: student paper prizes to Yingjie Be, Michelle Feng and Yuanzhao Zhang; the George Pólya Prize for Mathematical Exposition to Nick Higham; and the John von Neumann prize to Chi-Wang Shu.

The Institute of Mathematics and its Applications, the IMA, has also announced some prize winners.

And since we’re talking about mathematicians winning awards, mathematician Anna Kiesenhofer has been awarded a gold medal in the women’s cycling road race at the Tokyo Olympics. For more information, read her 2016 paper Noncommutative integrable systems on b-symplectic manifolds (actually, it may not mention the Olympics at all, sorry).


Controlled study shows link between musical and mathematical ability. The paper is published in the Journal of Research in Music Education. (via MAA)

Laurent Fargues and Fields Medalist Peter Scholze have created “a long-desired bridge between the arithmetic and geometric sides of the Langlands program”, warranting a writeup in the always-excellent Quanta Magazine. (Via @KSHartnett)


If one science communication video contest run by a famous YouTuber this year wasn’t enough, Grant Sanderson (aka 3blue1brown) is running a Summer of Math Exposition. Submit an “explainer of math” to be in with a chance of a $1,000 prize. Imagine the Big Internet Math-Off, but with less voting and an actual prize. Grant announced the competition with a video titled “Why aren’t you making math videos?”:

Because we’re tired, Grant. We’re so tired.

The IMA Black Heroes of Mathematics 2021 conference will take place on the 5th and 6th of October. The vision of the conference is “To celebrate the inspirational contributions of Black role models to the field of Mathematics and Mathematics Education”. The event will include technical talks by internationally renowned Black speakers, incorporating details of their career paths and experience.

Other news

The Protect Pure Maths Campaign, funded by private donations and run by a PR firm in collaboration with the London Mathematical Society, aims to promote and protect pure mathematics research. The family of Alan Turing have added their support to the campaign, to protect what is described in this article in the Guardian as ‘blue skies maths’.

The IMA has announced they’re forming an alliance to create new professional standards for data science.

“The Alliance for Data Science Professionals is defining the standards needed to ensure an ethical and well-governed approach so the public, organisations and governments can have confidence in how their data is used.”

The alliance consists of the Royal Statistical Society (RSS), BCS, The Chartered Institute for IT, the Operational Research Society, the Institute of Mathematics and its Applications, The Alan Turing Institute and the National Physical Laboratory (NPL), supported by the Royal Academy of Engineering and the Royal Society.

Robert Moses, founder of math literacy promotion charity The Algebra Project, has died. The announcement on the project website includes a moving tribute:

“His transition to that higher level only inspires us all to love, struggle and live with and for our people as he did, as we continue to work to realize Bob’s vision of “raising the floor of mathematics literacy” for all young people in the United States of America.”

Brands are at it again with their weird unnecessary anti-maths schtick: take this recent effort from Specsavers in which they state algebra is hard (which it can be sometimes), but also imply it’s ‘silly’, which is pretty short-sighted of them (LOL). Also this month, IMA President and World’s Most Interesting Mathematician Nira Chamberlain has been hassling sofa chain DFS about their TV commercial in which a boy shouts ‘I HATE MATHS’ repeatedly – which may actually have resulted in a change to the broadcast version (and good work if so!). It turns out that calling out this kind of thing sometimes gets results.

And finally, it’s been anounced that the theme for the International Day of Mathematics 2022 will be “Mathematics Unites” (via Nalini Joshi).