Word: electronic
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Dates: during 1930-1939
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...Wilhelm Institute for Physics. The Prize for Physics was divided between a pioneer cosmic ray researcher, Professor Victor Franz Hess, 53, of Austria's Innsbruck University, and 31-year-old Professor Carl David Anderson of California Institute of Technology, discoverer of a fundamental particle of matter, the positive electron. Prizeman Debye will receive about $40,000, Prizemen Anderson & Hess each half that...
...Anderson discovered the positive electron under curious circumstances. He was not looking for it, and its existence had already been foreshadowed by a British theorist only three years older than...
After developing one of his plates Anderson saw that he had scored a hit. To the untrained eye there was nothing but a ragged little white line. But to Anderson that line was astounding. It was thin and sketchy like the path of an electron. The particle had obviously traveled upward along the track and not downward, because it was more strongly bent above the lead plate. Also it had curved to the left. In that magnetic field only a positively charged particle could be traveling upward and curving to the left. In all features the particle was the "anti...
Neutrons have about the same mass as the heart of a hydrogen atom, but they are much smaller. Dr. George Braxton Pegram and his associates at Columbia have set the neutron diameter at one ten-trillionth of an inch. Unlike electrons, positrons, protons and deuterons, neutrons have no electric charge. Hence they make splendid projectiles for bombardment since they are not repelled by the positive charges on the atomic nuclei. Alpha particles knock neutrons in quantity out of beryllium and other light elements at speeds up to 30,000 miles per second. When the neutron hits a nucleus it either...
...Pisa, has taught and researched at the University of Rome since 1927. Short, wiry, dapper, cheerful, he is married, has a 5-year-old daughter, likes to ski, play tennis. Some years ago he perceived that when a nuclear impact knocks a neutron and a positron out of an electron, there is a mysterious disappearance of energy. He surmised that the excess energy rode away on a little particle which, now generally accepted as theoretically necessary, still eludes observation. It is because of Fermi that this little particle, the neutrino, has an Italian name...