Einstein and Szilard were friends, and together invented a refrigerator without mechanical parts to help the poor. They first met in 1920 when Szilard moved to Germany after being thrown down a set of steps leading to the Budapest University by anti-Semites and realising that it was time to leave Hungary. An outstanding student, Szilard had trained as an engineer, but in Berlin, the epicentre of modern physics, he pursued the new science.
