March 7th, 2013
Episode 279 of 515 episodes
Melvyn Bragg and his guests discuss absolute zero, the lowest conceivable temperature, about minus 273 degrees Celsius. At temperatures close to absolute zero, physicists have discovered a number of strange new phenomena including superfluids, liquids capable of climbing a vertical surface. Melvyn Bragg is joined by Simon Schaffer, Professor of the History of Science at the University of Cambridge; Stephen Blundell, Professor of Physics at the University of Oxford and Nicola Wilkin, Lecturer in Theoretical Physics at the University of Birmingham.