Professor Bill Graham was a recent Guest Expert on the BBC Radio 4 programme "In Our Time".
Along with two other scientists, Prof. Graham explained the properties and applications of plasmas - the fourth state of matter and the most common in the visible Universe.
Prof Graham is a member of the Centre for Plasma Physics at Queen's, whose members conduct fundamental and applied research into the properties of lasers and plasmas.
Hosted by Lord Melvin Bragg, "In Our Time" has been running since 1998 has weekly audience of 2 million listeners. The 45 minute programme can be listened to on BBC iPlayer by going to this link.