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Volume 1

Select this Article		Strong shock waves Robert A. Gross


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	+ -	Show Topic Strong shock waves can create very hot plasma. What temperatures can shock waves produce? What physical phenomena become important with increasing shock speed? What is the present state of our understanding of shock waves, where do they occur in nature, and how strong a shock wave can now be produced in laboratory devices? These are the questions discussed below.

Select this Article		Pilgrims' progress in search of the fundamental constants Jesse W. M. DuMond


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	+ -	Show Topic The fundamental constants of nature are so interrelated that a measurement affecting one affects them all. The author became interested when Millikan's oil‐drop value of the electron charge was different from the value given by x‐ray determination of crystal spacings. To assist in finding the true values, he invented a method for plotting various functions of the constants in a space of as many coordinates as there are constants. If all measurements are consistent, the plotted functions intersect in a point. When they do not intersect, one examines standard deviations, which correspond to thicknesses of surfaces, in an effort to find out what is wrong. In three decades, searches of this kind have reduced uncertainties in the constants from a fraction of a percent to, at most, tens of parts per million.

Select this Article		Of higher symmetries J. C. Polkinghorne


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	+ -	Show Topic Theorists from East and West recently spent two months at the IAEA Trieste Center discussing particles and high energies. The author, a reader in theoretical physics at the University of Cambridge and a fellow of Trinity College, recalls here what was said of SU(6), relativity, “nearly conserved” parity, and broken symmetries.

Select this Article		Frequency control: Report on the 19th annual symposium… A. D. Ballato and H. G. Andresen


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	+ -	Show Topic In the two decades during which the US Army has conducted its annual frequency‐control symposia, electromagnetic oscillations from atoms in transition have joined mechanical vibrations of crystals as frequency standards. Masers, in which hydrogen, ammonia, or rubidium is the active medium, and cesium beams function alongside quartz oscillators. Current developments are turning both crystal and atomic standards into more accurate and easier‐to‐use devices.

Select this Article		The early history of the atomic beam clock Jesse E. Sherwood


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BROWSE VOLUMES

October 1965

Volume 18, Issue 10

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Select this Article		Chicago physics club


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Select this Article		IPPS magnetism section


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Select this Article		Intermediate‐energy physics


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Select this Article		Plasma diagnostics


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Select this Article		Nuclei and particles


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Select this Article		Quantum electronics


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Select this Article		Modern Science and Technology Robert Colborn, Editor and Jacques E. Romain, Reviewer


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Select this Article		Methods in Computational Physics: Advances in Research and Applications, Vol. 3, Fundamental Methods in Hydrodynamics Berni Alder, Sidney Fernbach, Manuel Rotenberg, and J. Gillis, Reviewer


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Select this Article		An Author's Guide to Scholarly Publishing and the Law John C. Hogan, Saul Cohn, and Robert L. Weber, Reviewer


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Select this Article		Internal Factors in Evolution Lancelot Law Whyte and Eugene P. Wigner, Reviewer


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Select this Article		Theoretical and Mathematical Biology Talbot H. Waterman, Harold J. Morowitz, Editor, and Joseph G. Hoffman, Reviewer


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Select this Article		Excitons D. L. Dexter, R. S. Knox, and Joseph L. Katz, Reviewer


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Select this Article		The Direct Observation of Dislocations S. Amelinckx and Leonard Muldawer, Reviewer


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Select this Article		Ionized Gases A. Von Engel and L. Marton, Reviewer


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Select this Article		Introduction to the Atomic Nucleus J. G. Cuninghame and J. E. Mansfield, Reviewer


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Select this Article		Traité de la Méthode Scientifique Rene Leclercq and R. B. Lindsay, Reviewer


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Select this Article		Phase Transitions Robert Brout and Stuart A. Rice, Reviewer


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Select this Article		Lectures on General Relativity A. Trautman and Jacques E. Romain, Reviewer


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Select this Article		Progress in Optics, Volume 4 E. Wolf, Editor and H. E. I. Neugebauer, Reviewer


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Select this Article		Studies in Penetration of Charged Particles in Matter J. E. Mansfield, Reviewer


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Select this Article		Studies in Statistical Mechanics, Volume 3 J. De Boer, G. E. Uhlenbeck, and Kurt E. Shuler, Reviewer


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Select this Article		The Habitable Earth Ronald Fraser and Alan G. Henney, Reviewer


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Select this Article		The Scientific Age L. V. Berkner and R. B. Lindsay, Reviewer


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Select this Article		Statistical Mechanics Ryogo Kubo and Donald A. McQuarrie, Reviewer


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Select this Article		Alpha‐, Beta‐, and Gamma‐Ray Spectroscopy Kai Siegbahn, Editor and Evans Hayward, Reviewer


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Select this Article		Surface Phenomena in Metallurgical Processes A. I. Belyaev, Editor and Daniel B. Butrymowicz, Reviewer


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Select this Article FREE		Cornelius Bol


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Select this Article FREE		H. W. Russell


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Select this Article FREE		Three LASL scientists: Robert B. Day, Frank E. Pretzel and Herbert E. Ungnade


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Select this Article FREE		William T. Allen


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Select this Article FREE		George R. Sears


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