Can you find a path through on this city map that crosses every bridge exactly once? Euler's answer to this problem started off the filed of graph theory.

Frank Kelly talks about his work on networks and how inspiration can strike out of the blue.

How popular and successful are you? Not as much as your friends is the sad answer, at least as far as Twitter is concerned.

Everybody's talking about Big Data. But what exactly do they mean?

In 2012 the UK government launched a list of the Eight Great technologies of the future. Here's what they are and what role maths has to play in them.

A famous question involving networks appears to have come closer to an answer.

Why do so many networks exhibit a similar kind of structure? It's because the rich tend to get richer!

Meet the number that's bigger than the observable Universe!

How a cute 18th century puzzle laid the foundations for one of the most modern areas of maths: network theory.

Deciding who is to blame and who should pay for the financial crisis will be a hot topic at the G8 next week. Financial mathematics received a lot of bad press in the aftermath of the crunch and many believe that it was the popularity of mathematical models – often borrowed from physics — that put the financial system at risk. But now models borrowed from biology are helping us understand how this risk might be reduced.

Modelling the spread of disease is a difficult business. Epidemiologists use incredibly complex models involving huge amounts of transport, social contact and disease data to predict the spread of diseases. But is there a way to hide all this complexity and draw a simpler picture of how diseases spread, even in today's complex world?

We like to think of the human brain as special, but as we reported on Plus last year, it has quite a lot in common with worm brains and even with high-performance information processing systems. But how does it compare to online social networks? In a recent lecture the psychiatrist Ed Bullmore put this question to the test.