For four years, James Chadwick was a prisoner of war in Germany ... could be a particle with mass but no charge. He called it a neutron, and imagined it as a paired proton and electron.

This view of the atomic nucleus changed when James Chadwick discovered the existence of the neutron in 1932, for which he won ...

Prof Val Gibson tells Melvyn Bragg about the device used in the discovery of the neutron. When later interviewed for the New York Times, Chadwick said ... a passage in James Joyce’s Finnegans ...