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Jam-Packed Volume: QED, the Neutron, and verification of E=mc^2++ ALL in one volume of "Proceedings of the Royal Society, London, 1932, volume 136 (Series A). v, 766pp, 19 plates. [++] Very nicely and newly rebound in cloth-back marbled boards. FINE COPY.[++] Chadwick, James. "The Existence of a Neutron" pp 692-708 (followed by N. Feather, "The Collisions of Neutrons with Nitrogen Nuclei" pp 709-727 and PI Dee, "Attempts to Detect the Interactions of Neutrons and Electrons" pp 727-734 plus further discussions by Ernest Rutherford, Chadwick, Ellis, McLennan, and Mott follow.) CHADWICK: "Early in 1932 Irène Joliot-Curie and Frédéric Joliot in Paris reported that the radiation from beryllium was even more penetrating than had been thought. when Chadwick read the report, he saw, as did Rutherford, that the energy arithmetic of the collisions producing it did not add up. He quickly showed that the results accorded completely with the theory that the penetrating radiation was composed of neutral particles of roughly the mass of the proton. A short paper announcing the discovery of the neutron was submitted in February 1932. Detailed papers by Chadwick, by Norman Feather, and by Philip Dee, who used cloud chamber techniques to further analyze the neutrons properties, followed in May [in the volume offered here]."--Complete Dictionary Scientific Biography online. [++] [++] DIRAC, P.A.M. "Relativistic quantum Mechanics" pp 453-464. "In 1932 Dirac tried to start a new revolution by giving up (for electrodynamics) the most basic requirement of his quantum-mechanical work: the Hamiltonian structure of dynamical equations. Imitating Heisenberg s revolutionary breakthrough, he declared that the new theory should eliminate unobservable things like the electromagnetic fields during the interaction process, and focus on their asymptotic values before and after the interaction. The electromagnetic field, he said, was nothing but a means of observation, and therefore should not be submitted to Hamiltonian treatment. On these lines he derived a set of equations that apparently were quite new; in fact, as Leon Rosenfeld soon pointed out, it differed from the theory of Heisenberg and Pauli only in the use of the interaction representation (for which the quantum fields evolve as free fields) and of a multitime configuration space for electrons (instead of Jordan s quantized waves). Nonetheless, once it had been improved with the help of Vladïmir A. Fock and Boris Podolsky, Dirac s formulation had the great advantage of being explicitly covariant. a feature particularly attractive to the Japanese quantum-field theorists Hideki Yukawa and Sin-Itiro Tomonaga."--complete Dictionary of Scientific Biography online. [++] Charles Wynn-Williams, A Thyratron Scale of Two Automatic counter pp. 312 324; J.D. Cockroft and ETS Walton, Experiments with high velocity positive ions: I. Further developments in the method of obtaining high velocity positive ions pp. 619 630. This is a detailed description of generator used by Cockroft-Walton to accelerate particles to high energies, measure the energies of collided particles, and confirmed that the total energy before and after were proved to be as predicted before and after the reaction by the predictions of E=mc^2.
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