London: Harrison & Sons, 1932. 1st Edition. FULL VOLUME 1st EDITION OF CHADWICK’S CONFIRMATION OF THE EXISTENCE OF A NEUTRON. Earlier in 1932, Chadwick speculated about the "possible" existence of the neutron, a subatomic particle with no electrical charge and a mass slightly larger than that of a proton. When..... More

London: Macmillan, 1932. 1st Edition. FULL VOLUME 1st EDITION of James Chadwick’s initial speculation about the "possible" existence of the neutron, a subatomic particle with no electrical charge and a mass slightly larger than that of a proton. When, three months later, Chadwick affirmed his discovery, his assertion rewrote then..... More