## Articles

**Angus Brown**looks at one of these, a simple model for option pricing, and explains how it takes us on the road to the famous Black-Scholes equation of financial mathematics, which won its discoverers the 1997 Nobel Prize in Economics.

**John Billingham**investigates and saves the national grid in the process.

**Lewis Dartnell**looks at some stunning examples.

**Liz Newton**finds that having a small brain doesn't stop you doing great things.

**Phil Trinh**discovers how maths helps solve the mysteries of flight and love.

**Peter Macgregor**explores the beautiful world of the infinite.

**Josefina Alvarez**describes the workings of the most famous search engine of them all. You'll need some linear algebra for this one, but it's worth the while!