Double Maths First Thing is remembering how icosahedra work. Hello! My name is Colin and I am a mathematician on a mission to spread joy, delight and just satisfaction in doing maths. This week’s excitement was being mentioned (twice!) in a Stand Up Maths video – it’s embarrassingly recently that I realised the acronym is…
Carnival of Maths 249

The next issue of the Carnival of Mathematics, rounding up blog posts from the month of February 2026, is now online at Tony’s Maths Blog. 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 – February 2026

Here’s a short round-up of mathematical and maths-adjacent news from this month. The LMS are seeking Outreach Lecturers, who must work in UK HE mathematics, and will receive a two-year post during which they’re expected to deliver talks to a minimum of 4 schools around the UK each year. The talks should be free to…
Double Maths First Thing: Issue 4E
Double Maths First Thing is spinning plates Hello! My name is Colin and I am a mathematician on a mission to spread the joy and delight of doing maths. This week’s “oo!” moment was this lovely observation by Ruud de Rooij, followed by an “oh wow!” when I figured out the induction step of the…
Prime time: now with annoying notifications!

A while ago I added a clock to my “Is this prime?” website: it shows you when the Unix time is a prime number of milliseconds. Earlier today I had the thought that it could send you a notification when it’s prime time, so you won’t miss out even if you’re not staring at the…
Double Maths First Thing: Issue 4D
Double Maths First Thing is trying to be good. Hello! My name is Colin and I am a mathematician on a mission to spread the joy and delight of doing maths. I had an “oo! oo! oo!” moment at MathsJam last week, figuring out a neat solution to a question that I’d not had time…
Double Maths First Thing: Issue 4C
Double Maths First Thing is giving up sacrifice for Lent Hello! My name is Colin and I am a mathematician on a mission to spread joy and delight in doing and understanding maths. I’ve given a few classes this week where a student has suddenly lit up with an “I get it!” and it’s the…