# 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.

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

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

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

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

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

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

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

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

What would happen if the Sun suddenly exploded? Einstein wondered the same thing, and completely changed our understanding of the Universe.