A weekly tour of the periodic table, from Chemistry World, the magazine of the Royal Society of Chemistry.
http://www.chemistryworld.com/podcasts
Ritonavir
The unexplained appearance and dramatic spread of a new form of HIV drug ritonavir hurt patients and cost its makers almost $250 million. Alexander Whiteside on the chemical phenomenon that links Irving Langmuir, H G Wells and Kurt Vonnegut.