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: Poincaré and the beginnings of chaos

How a maths competition spawned the foundations of chaos theory.

Maths in a minute: Penguins

We can't let penguin awareness day pass without a look at some penguin maths.

Maths in a minute: The graph isomorphism problem

How fast can you tell whether two networks are the same?

Maths in a minute: Fourier series

How the heat equation inspired the maths that powers the entertainment industry.

Maths in a minute: Maths and navigation

How the need to locate your location at sea led to some interesting mathematics.

Maths in a minute: The square root of 2 is irrational

Here's one of the most elegant proofs in all of maths. Rejoice in its simplicity!

Maths in a minute: Maths and communication

A quick look at the role of mathematics in communication — from making and breaking codes to making sure messages arrive intact.

Maths in a minute: False positives

Why a positive test result doesn't necessarily mean you have the disease.

Maths in a minute: How many primes?

Here's the ancient proof that there are infinitely many prime numbers.