two-sidedsurface

In the first of a new series 'Imaging Maths', Plus takes an illustrated tour of an extraordinary geometric construction: the Klein bottle.

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.

Taking the pandemic temperature

How do people in different countries feel about the COVID-19 pandemic and the measures taken by their governments?
Myths of maths: The Monty Hall problem

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

As the world prepares for the worst, we explore the maths that can help us stop a pandemic.
Communicating the coronavirus crisis

David Spiegelhalter, expert in risk and evidence communication, tells us how well the UK government has done so far communicating about Covid-19.