stereographic projection

What happens when you shrink infinity to a point? You get a sphere!

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.

Myths of maths: The golden ratio

The golden ratio has many amazing properties. But is it really a secret of nature and the epitome of beauty?
Maths in a minute: Social distancing

How should people arrange themselves for maximal socialising at a safe distance?
Happy international women's day 2020

We celebrate Karen Uhlenbeck, first female winner of the Abel Prize, and some of the other female mathematicians we met over the last year.
Myths of maths: The four colour theorem

It's one of mathematics' most famous results: every "map" can be coloured using at most four colours. What it doesn't usually apply to, however, are real maps.
Myths of maths: The Monty Hall problem

This puzzle is famous because the accepted answer is counter-intuitive. But is it always correct?