Double Maths First Thing has been blown away by a puzzle Hello! My name is Colin and I am a mathematician on a mission to spread the joy and delight in mathematical thinking, in figuring things out, and in doing things that make you feel clever. Such as – I’m indebted to Miles Gould for…
Double Maths First Thing: Issue 58
Double Maths First Thing is petitioning the weather to be nicer Hello! My name is Colin and I am a mathematician on a mission to spread joy and delight in all things mathematical. I had a nice “oho!” moment in class with a student today looking at a question from a Madas paper – it’s…
Double Maths First Thing: Issue 57
Double Maths First Thing has Youri Tielemans in swaps Hello! My name is Colin and I am a mathematician on a mission to spread the joy and delight of figuring stuff out. I’ve been thinking a lot about MathsJam and Parkrun and similar activities, where the point is just showing up and doing the thing…
Carnival of Maths 251
The next issue of the Carnival of Mathematics, rounding up blog posts from the month of April 2026, is now online courtesy of Karrie Liu. 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.
Double Maths First Thing: Issue 56
Double Maths First Thing no longer runs marathons. Hello! My name is Colin and I am a mathematician on a mission to spread the joy and delight of doing maths, figuring things out and generally taking pleasure in doing clever things. Like everyone else, I was thrilled to see Sabastian Sawe and Yomif Kejelcha break…
Review: Huge Numbers by Richard Elwes
There’s a story about a child mathematician talking to an older mathematician and saying “I think the biggest number is a TRILLION.” The grown-up says “OK, but what about a trillion and one?” The child mathematician looks crestfallen, but only for a moment. “Oh. At least I was close!” If you’ve ever interacted with mathematically-inclined…
Double Maths First Thing: Issue 55
Double Maths First Thing: Northerly 3-5, moderate, fair, good, some kraken later. Hello! My name is Colin and I am a mathematician on a mission to spread the joy and delight of doing maths, solving puzzles, and making the world a better place. I’m currently in the middle of writing a song about how the…