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.

A cute problem goes big

Mathematicians have revived an old approach to solving the famous Riemann hypothesis.
Our changing picture of gravity

To celebrate the recent centenary of the first major test of Einstein's general theory of relativity, we look back over how our picture of gravity has changed.
Pure maths in crisis?

Proof is the essence of mathematics. But is the standard of proof in research maths really as high as mathematicians would like to believe?
A geometry for strings

If, as string theory suggests, the world is made of strings, then what does that mean for a geometry of points? Find out more in this video.
The PEMDAS Paradox

It looks trivial but it keeps going viral. What answer do you get when
you calculate 6÷ 2(1+2)? David Linkletter explains the source of the confusion.