# 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. From symmetry to Euclid's axioms, and from binary numbers to the prosecutor's fallacy, learn some maths without too much effort.

Maths in a minute: Bayes' theorem

It would be foolish to ignore evidence. Luckily Bayes' theorem shows us how to take it in into account.

Physics in a minute: What's the problem with quantum gravity?

At the heart of modern physics lurks a terrible puzzle: the two main theories that describe the world we live in just won't fit together.

Maths in a minute: Continued fractions

Continued fractions reveal the good, the bad and the beautiful side of numbers.

Maths in a minute: Tiling troubles

Why there are only three regular polygons you can tile a wall with.