Can you believe it’s been 10 years since I made the “Is this prime?” game? I sort of can, because I set myself a reminder about it in my calendar. Back in 2016, the game had been played 350,000 times and I wrote a post looking at the collected data. 10 years later, I thought…
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…
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.
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 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…
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 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…