Viva day for James Clewett - the oral examination to decide if he gets a PhD and becomes Dr Clewett. More about James's work and story at:    • James Clewett Videos   We were very lucky to have cameras in the room - but there was a "no audio" condition. This is because recording a viva was new territory and there were concerns about affecting the all-important exam. Maybe next time? ;) James also asked me to clarify his fear of the "Russian Professor" was because: "As we know from Landau and Liftshitz.... Russian mathematicians have a reputation for rigour." Test Tube is a project by video journalist Brady Haran for the University of Nottingham. More at http://www.test-tube.org.uk/ Additional filming in this video by James Hennessy. With thanks to the School of Physics and Astronomy at the University of Nottingham.