Photo by Bortzells Esselte, courtesy AIP Emilio Segre Visual Archives. Enrico Fermi (1901-1954) left Italy in 1938 to receive the Nobel Prize for physics in Sweden. He never went back. He and his ...

Enrico Fermi had to cajole his friend Ettore Majorana ... On the other hand, the neutron (which has spin ½), despite being electrically neutral, is not its own antiparticle: several neutrons ...