## Articles

**Neil Pieprzak**tells the fascinating story of Andrew Wiles who, with intense devotion and in secret, proved a deceptively simple-looking conjecture that had defeated mathematicians for almost 400 years.

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

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

**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!

**Lewis Dartnell**turns the universe into a matrix to model traffic, forest fires and sprawling cities.

**Charlotte Mulcare**uses milk to show how maths and stats can provide genetic answers.

*On the origin of species*, but also 200 years since the birth of its author, Charles Darwin. At the heart of Darwin's theory of evolution lies a beautifully simple mathematical object: the evolutionary tree. In this article we look at how maths is used to reconstruct and understand it.

**Chris Sangwin**takes us through excerpts of Euler's algebra text book and finds that modern teaching could have something to learn from Euler's methods.