# 30

It has often been observed that mathematics is astonishingly effective as a tool for understanding the universe. But, asks
Phil Wilson, why should this be? Is mathematics a universal truth, and how would we tell? |
In issue 29 of
Plus, we heard how a simple mathematical equation became the subject of a debate in the UK parliament. Chris Budd and Chris Sangwin continue the story of the mighty quadratic equation. |

There are many different types of lottery around the world, but they all share a common aim: to make money.
John Haigh explains why lotteries are the way they are. |