October 30th, 2014
Episode 409 of 515 episodes
Nuclear fusion is the process that powers stars. In the 1920s physicists predicted that it might be possible to generate huge amounts of energy by fusing atomic nuclei together, a reaction requiring enormous temperatures and pressures. Scientists have achieved fusion in the laboratory and today it is seen as a possible future source of limitless and clean energy. Melvyn Bragg is joined by Philippa Browning, Professor of Astrophysics at the University of Manchester; Steve Cowley, Chief Executive of the United Kingdom Atomic Energy Authority and Justin Wark, Professor of Physics and fellow of Trinity College at the University of Oxford.