For four years, James Chadwick was a prisoner of war in Germany. When World War I ended, he returned to his native England to rejoin the mentor of his undergraduate days, Ernest Rutherford.

Ernest Rutherford's family emigrated from England to New Zealand before he was born. They ran a successful farm near Nelson, where Ernest was born. One of 12 children, he liked the hard work and ...

Other members of the Manchester team included Hans Geiger (co-inventor of the Geiger counter), Georg Halevy (radioactive tracers), Ernest Marsden (atomic nucleus) and James Chadwick (a Manchester ...