Alan Turing was one of our great 20th century mathematicians, and a pioneer of computer science. However, he may best be remembered as one of the leading code breakers of Bletchley Park during World War II.
It was Turing's brilliant insights and mathematical mind that helped to break Enigma, the apparently unbreakable code used by the German military.
We present a history of both Alan Turing and the Enigma, leading up to this fascinating battle of man against machine - including a full demonstration of an original WWII Enigma Machine.
Dr James Grime is a mathematician and public speaker who works for the Millennium Mathematics Project at the University of Cambridge. He can be mostly found touring the UK, and the world, giving talks about the history and mathematics of codes and code breaking.