## Articles

Are you bored with 1 to 12? Then have a look at these mathematical clock faces!

Tracing the path of invading species using a famous problem in graph theory.

Atomic clocks are the best time keepers, but need to be kept incredibly cold. Paradoxically, the cooling is achieved by shining light on them.

Bitcoin is a digital currency that isn't regulated by any kind of central authority. The structure which allows this decentralisation is called blockchain. But how, and how well, does it work?

What do statisticians do in the pharmaceutical industry?

Mathematicians like to think that their field transcends politics, but as this brief history of the International Congress of Mathematicians shows, international mathematics has always been coloured by world events.