shoelace problem

What do tying your shoe laces and Santa's Christmas Eve journey have in common?

Maths in a minute

Want facts and want them fast? Our Maths in a minute series explores key mathematical concepts in just a few words.

Packing spheres

How to arrange oranges in higher dimensions.
From an ecologist's nightmare to a mathematician's dream

Tracing the path of invading species using a famous problem in graph theory.
Maths in a minute: Transcendental numbers (and politics)

A quick introduction to transcendental numbers, a famous problem which relates to them, and how the person who solved it became a victim of political tensions.
Fantastic fractals

Escaping the tyranny of the straight line.
Blockchain: Spreading trust

Bitcoin is a digital currency that isn't regulated by any kind of central authority. The structure which allows this decentralisation is called blockchain. But how, and how well, does it work?