Ramsey number

Meet the number that's bigger than the observable Universe!

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.

What is constructor theory?

A new way of looking at the physical world promises to shed light on some of the problems physics as we know it can't deal with.
Maths in three minutes: Map projections

Getting a different picture of our planet.
Building meaning: dog or ostrich

How do we build our models of the world? Yoshua Bengio explains how deep learning will help machines act to understand the world in a similar way.
Unlocking the workforce

How can we all get back to work safely in the face of a lingering pandemic?
The growth rate of COVID-19

We all now know about R, but sometimes it can be good to consider another number: the growth rate of an epidemic.