# 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.

*dark matter*. But if it's invisible how do they know it's there?

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.

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

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

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

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

The probability distribution that measures success and failure.