The new materials that can self-mend, from concrete cracks to car paint scratches
BBC World Service Online
MEPs decide whether to ban deep sea trawler fishing from the North Atlantic.
BBC Radio 4
Chris Packham presents the gadwall.
What is the effect of increasing numbers of tourists visiting wildlife hotspots?
Adam Walton learns about the latest genetic research and treatment options for dementia.
BBC Radio Wales
How virtual patients help medical students with their bedside manners
4/6 Brian and Robin explore mathematics, infinity and the role of numbers in everyday life.
Wednesday 11 December 2013