Cavendish Professor of Physics the university regulations which allowed students who had not studied at Cambridge to receive a B.A. by submitting a thesis which was judged "of distinction as a record of original research." Among the students attracted by this change was future Cavendish Professor Ernest Rutherford. Whilst Thomson was Cavendish Professor, he discovered the electron and the existence of isotopes, and also fostered an atmosphere of friendliness and mutual helpfulness. Rutherford returned to Cambridge in 1918, and spent the last 19 years of his life there. This was around the time of the change from classical to modern physics, and Rutherford was
Princeton Plasma Physics Laboratory Princeton Plasma Physics Laboratory Princeton Plasma Physics Laboratory (PPPL) is a United States Department of Energy national laboratory for plasma physics and nuclear fusion science. Its primary mission is research into and development of fusion as an energy source. PPPL grew out of the top secret Cold War project to control thermonuclear reactions, called Project Matterhorn. In 1961, after declassification, Project Matterhorn was renamed the Princeton Plasma Physics Laboratory. PPPL is located on Princeton University's Forrestal Campus in Plainsboro Township, New Jersey. This is some distance from the main Princeton campus, but the lab has a Princeton address. In 1950,