The play says it is based on real transcripts of conversations between the German nuclear scientists held at Farm Hall, although it is hard to say what is real and what is artistic license. It is full of the little tensions of people cooped up together, and the larger tensions - who were 'real' Nazis, will people go back to Germany or go elsewhere? The little slices of life where they try to relieve boredom by putting on a play or repairing a piano were probably the best bits for me. (The mild cruelty of 'you wanted a piano? We found you a piano. But it's broken. You're physicists, I'm sure you can fix it' was not lost on me).

Interestingly in conversation with Copenhagen, a very different side to Heisenburg. ( )