## physics

*Plus*went to see him to find out more about his career.

*string theory*have nudged their way into public consciousness. It's a theory of everything in which everything's made of strings — or something like that. But why strings? What do they do? Where did the idea come from and why do we need such a theory?

**David Berman**has an equation-free introduction for beginners.

Ground breaking work in uncovering optimal funding mechanisms in financial markets

Mathematicians offer new proof of quasicrystals' strange electronic properties.

String theory finally looks like it is tying the knot with established physics.

- Happy birthday Plus! — celebrating 10 years of bringing mathematics to life
- Plus 10 — what were the greatest mathematical advances in the last decade?

A new mathematical model describes how plants can stop desertification

A public discussion explores deep questions