Copper is the distinctive red metal in pots, pans and water pipes, and also plays a central role in whisky distillation. Presenter Laurence Knight and chemistry guru Professor Andrea Sella of University College London travel to the Abercrombie copperworks in Scotland to see the art of whisky still-making first-hand. Also in the programme, Gideon Long reports from Chile on why the source of one-third of the world's copper supply has not succumbed to the "resources curse". And Bill Keevil of Southampton University explains why copper's anti-microbial properties mean it could soon be leading the fight-back against hospital super-bugs such as MRSA. (Photo: A whisky still at the Abercrombie copperworks, Credit: Mike Wilkinson/Abercrombie Copperworks)