## Articles

Emmy Noether, pioneering female mathematician, died 80 years ago.

**John Webb**takes us through some of the mathematics involved, introducing us to some of the colourful characters who led the way.

**John D. Barrow**explains.

**John H. Webb**explains.

**Kevin Jones**investigates the links between music and mathematics, throwing in limericks, Fibonacci and Scott Joplin along the way.

*Plus*is proud to present an extended version of his winning entry for the THES/OUP 1999 Science Writing Prize.

**Janna Levin**tells us more.

**Kona Macphee**examines the prefix property, one of the important features of a good code.

**Jon Walthoe**explains the tricks involved and how great thinkers like Pythagoras, Newton and Gödel tackled the problems.