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: Compound interest and e

Compound interest is the curse of debt and the blessing of saving. Find out how it works and what it has to do with one of the most important numbers in mathematics.

Maths in a minute: Euler's identity

Here's a quick introduction to the beauty queen amongst mathematical formulas.

Maths in a minute: How does laser interferometry work?

How does LIGO detect gravitational waves? Here is a quick introduction.

Maths in a minute: Gravitational waves

A quick introduction to one of the greatest discoveries of the century.

Maths in a minute: Black holes

A quick introduction to the monsters that lurk at the centre of each galaxy.

Maths in a minute: The binomial distribution

The probability distribution that measures success and failure.