Sandy Black has combined her love of maths and art in a career as a knitwear designer.
(16/03/2010)
The state of the Arctic
(03/03/2009)
How do you know a drug works? Should it be free on the NHS?
(17/02/2010)
Most precise experiment to date confirms one of Einstein's predictions
Plus podcast 22, February 2010: Evaluating a medical treatment