I tried to prove you could untie knots in a sphere in five dimensions.
Christopher Zeeman ,
Professor of Mathematics at the University of Warwick, talks to
Professor Lewis Wolpert of the Middlesex Hospital Medical School, London, about the satisfactions of a subject in which it may take a month to read a paper, and seven years to solve a problem with no apparent application to the real world.
Something quite different
(THE GUARDIAN)
Producer ALISON RICHARDS