If a shape has equal sides with 90 degree angles between them then it's a square, right? Well, not quite...

Since pi is the number of round things, we devote this year's pi day celebrations to...curvature!

Can physics do for maths what maths has done for physics?

Since he Universe is all there is, there's nothing for it to expand into. So what does "expansion" mean?

Following on from our previous article about curvature of lines and surfaces, we now move up to curvature of their higher dimensional equivalent – manifolds.

Curves bring great beauty to our world. But how curvy is a curve?

The famous mathematician Euclid is credited with being the first person to axiomatise the geometry of the world we live in - that is, to describe the geometric rules which govern it. Based on these axioms, he proved theorems - some of the earliest uses of proof in the history of mathematics.