Learn about the aerodynamics of footballs and perfect your free kick.

What does a mathematician from the 3rd century BC have to do with tuning musical instruments in 17th century Europe? **Benjamin Wardhaugh** tells us about one of the more unusual places you might find Euclid's algorithm being used.

In the last article of this three-part series, **Phil Wilson** shows how simple graphs can tell you a lot about the economy — and not only in Slugworld.

You've probably seen pictures of the famed Mandelbrot set and its mysterious cousins, the Julia sets. In this article **Robert L. Devaney** explores the maths behind these beauties and shows that they're loaded with mathematical meaning.

What goes up must come down — or does it? Find out how to cheat gravity with **Julian Havil**.

Travel, money, meeting new people, living in new cultures, and a whole lot of sport — that's where maths has lead Jamie Clarke, an IT project manager who specialises in international sport projects such as the recent Winter Olympics in Torino. Jamie tells *Plus* how he went from engineering to the Olympics.