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 half a minute: Exponential growth

What do we mean when we say that something grows exponentially? Find out in this very easy introduction, suitable for anyone curious to know more!

Maths in a minute: Odds ratios

Is your new face cream associated to getting spots? The odds ratio can help figure it out.

Maths in a minute: Mathematical models

A basic introduction to the most powerful tools in science and engineering.

Maths in a minute: Algorithms

The word "algorithm" has probably got more usage over the last few years than it has in its entire history. But what exactly is an algorithm?

Maths in a minute: Exponential growth

What do we mean when we say that something grows exponentially?

Maths in a minute: Conditional probability

Find out why the formula we use to work out conditional probabilities is true!

Maths in a minute: Non-linearity

Non-linear relationships are tricky relationships. Find out why here.

Maths in a minute: Homotopy

The concept of homotopy is a great example of how the language of maths can make intuition precise.

Maths in a minute: Peano arithmetic

How would you explain the natural numbers to an alien devoid of a number instinct? You could try Peano arithmetic...

Maths in a minute: Thermodynamics

Tea gone cold? Don't worry, you can cheer yourself up with the theory of thermodynamics.