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Volume 29

Issue 12 | Dec 1961 | pp. xv-869

Issue 11 | Nov 1961 | pp. 725-804

Issue 10 | Oct 1961 | pp. 661-723

Issue 9 | Sep 1961 | pp. xvii-660

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Issue 1 | Jan 1961 | pp. 1-65

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Volume 1

Select this Article		On the Recent Past of Physics Gerald Holton American Journal of Physics -- December 1961 -- Volume 29, Issue 12, pp. 805 \| Cited 1 time Online Publication Date: Jul 2005 Full Text: \| Download PDF
	+ -	Show Abstract A brief account of current work in the history of modern physics is given to indicate that the interest of physicists in this field is rising, and that they are beginning to participate in greater numbers. The analyses by A. H. Compton, G. P. Thomson, C. D. Anderson, and W. F. G. Swann of their own early work are used to show some persistent characteristics of developing scientific work.

Select this Article		The History of Cosmic Rays W. F. G. Swann American Journal of Physics -- December 1961 -- Volume 29, Issue 12, pp. 811 Online Publication Date: Jul 2005 Full Text: \| Download PDF
	+ -	Show Abstract The history of developments in the cosmic-ray field is traced back to the time when there was uncertainty about the origin of ionization in closed vessels. We then pass through the period when, through the high-altitude experiments of Victor F. Hess, we were forced to admit the existence of a radiation coming from outside our atmsophere. The controversy as to whether the rays are photons or charged particles is sketched and leads through the results of geomagnetic effects to the conclusion that the primaries are positively charged particles, mostly hydrogen, but that in addition there is about 15% of helium, and representatives of probably all elements are to be found in amounts diminishing with increase of atomic number. The effect on the detailed study of cosmic ray phenomena (as observed in the atmosphere) of the discovery of the mesotron and the positron is traced, as is the part played by such theoretical discoveries as “pair production.” Brief reference is made to “large showers,” and the paper concludes with a brief summary of our knowledge of the origin of the primary cosmic radiation and of the part played by “island magnetic fields” existing in our galaxy and even in our solar system.

Select this Article		The Scattering of X Rays as Particles A. H. Compton American Journal of Physics -- December 1961 -- Volume 29, Issue 12, pp. 817 Online Publication Date: Jul 2005 Full Text: \| Download PDF
	+ -	Show Abstract The experimental evidence and the theoretical considerations that led to the discovery and interpretation of the modification of the wavelength of x rays as a result of scattering by electrons are reviewed, as is the controversy between Duane and the author that took place in 1923–24. The confirmatory evidence obtained by Bothe, Geiger, Simon, and Compton is summarized.

Select this Article		Early Work in Electron Diffraction George Thomson American Journal of Physics -- December 1961 -- Volume 29, Issue 12, pp. 821 \| Cited 1 time Online Publication Date: Jul 2005 Full Text: \| Download PDF
	+ -	Show Abstract Both the work of de Broglie and a number of scattering experiments were forerunners of the two pieces of work that established the existence of electron refraction. The history of the experiments is discussed, as are some of the difficulties, both experimental and conceptual, which had to be overcome before de Broglie's hypothesis could be verified.

Select this Article		Early Work on the Positron and Muon C. D. Anderson American Journal of Physics -- December 1961 -- Volume 29, Issue 12, pp. 825 \| Cited 1 time Online Publication Date: Jul 2005 Full Text: \| Download PDF
	+ -	Show Abstract Early work on the positron and muon is described in an informal way, with emphasis on those aspects of the work which normally would not find their way into the literature.

SECTION LISTING

BROWSE VOLUMES

Dec 1961

Volume 29, Issue 12, pp. xv-869

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Select this Article		Epoxy-Resin Seals for GM Counter Construction William P. Davis, Jr., William C. Worthington, and H. P. Stabler, Editor American Journal of Physics -- December 1961 -- Volume 29, Issue 12, pp. xv Online Publication Date: Jul 2005 Full Text: \| Download PDF
		Abstract Unavailable

Select this Article		Graphite-Woven Fabric, Furnace for the Demonstration of High Temperature Phenomena H. P. Stabler, Editor American Journal of Physics -- December 1961 -- Volume 29, Issue 12, pp. xvi Online Publication Date: Jul 2005 Full Text: \| Download PDF
		Abstract Unavailable

Select this Article		Polish for Aluminum and Acrylic Plastics H. P. Stabler, Editor American Journal of Physics -- December 1961 -- Volume 29, Issue 12, pp. xvi Online Publication Date: Jul 2005 Full Text: \| Download PDF
		Abstract Unavailable

Select this Article		An Unusual Method of Solving the Harmonic-Oscillator Equation Robert Weinstock American Journal of Physics -- December 1961 -- Volume 29, Issue 12, pp. 830 \| Cited 1 time Online Publication Date: Jul 2005 Full Text: \| Download PDF
	+ -	Show Abstract The differential equation of the harmonic oscillator is solved by a method that employs techniques of the elementary calculus only.

Select this Article		Cognitive Development in Children and Readiness for High School Physics Celia B. Stendler American Journal of Physics -- December 1961 -- Volume 29, Issue 12, pp. 832 Online Publication Date: Jul 2005 Full Text: \| Download PDF
	+ -	Show Abstract The student of superior intelligence is not always the superior performer in both the linguistic and the scientific fields. The able English major may have difficulty in learning physics, while his counterpart, the physics major, may find rhetoric his bête noire. This paper offers a possible explanation of how readiness for learning physics is developed. It explores the hypothesis that certain kinds of childhood experiences structure an individual's perceptions of the physical world; that these perceptions are stored as information in cell-assemblies in the cortex; and that this neural reservoir facilitates the learning of concepts in the physical sciences. The nature of experiences that might contribute to the building of such a neural reservoir is discussed.

Select this Article		Some Applications of Schwinger's Principle LL. G. Chambers American Journal of Physics -- December 1961 -- Volume 29, Issue 12, pp. 836 Online Publication Date: Jul 2005 Full Text: \| Download PDF
	+ -	Show Abstract Formulas are derived using Schwinger's variational principle for capacity, potential coefficients, and inductance.

Select this Article		Relativity and Parallel Wires David L. Webster American Journal of Physics -- December 1961 -- Volume 29, Issue 12, pp. 841 Online Publication Date: Jul 2005 Full Text: \| Download PDF
	+ -	Show Abstract Special relativity gives simple answers to the freshmen's persistent questions, “Why should like currents attract, when like charges repel?,” and, “Why should the speed of light come into the laws of parallel-wire forces?” These answers are derived here in two ways: first, to prove them logically sound, from the Lorentz transformations, with v the drift velocity of the carriers; then by essentially equivalent calculations that have been found intelligible and interesting to freshmen.

Select this Article		Apparatus Drawings Project. Report Number 21. Ionization Chamber Robert G. Marcley American Journal of Physics -- December 1961 -- Volume 29, Issue 12, pp. 845 Online Publication Date: Jul 2005 Full Text: \| Download PDF
	+ -	Show Abstract A simple parallel-plate ionization chamber of the integrating type is described. It was specifically designed for undergraduate investigations of the effects of ionizing radiation on a gas under the influence of a relatively small electric field. A simple gas handling system permits operating the chamber with air or several pure gases at any pressure from a few mm Hg up to several atm γ rays easily penetrate the chamber envelope, while collimated beams of α, β, and soft x radiation can be passed through a thin window into the sensitive region between the rectangular plates. Ancillary apparatus required for experiments consists of 0–100 v potential source, an electrometer capable of measuring a current of 10⁻¹³ amp full scale, and a small mechanical vacuum pump. Construction details are given.

Select this Article		A Vicious Circle Walter C. Michels, Editor American Journal of Physics -- December 1961 -- Volume 29, Issue 12, pp. 851 Online Publication Date: Jul 2005 Full Text: \| Download PDF
		Abstract Unavailable

Select this Article		Representation of the Commutation Relation Peter Fong American Journal of Physics -- December 1961 -- Volume 29, Issue 12, pp. 852 Online Publication Date: Jul 2005 Full Text: \| Download PDF
		Abstract Unavailable

Select this Article		Condition that Temperature Defined by an Equation of State be Equal to Absolute Thermodynamic Temperature Austin J. O'Leary American Journal of Physics -- December 1961 -- Volume 29, Issue 12, pp. 852 Online Publication Date: Jul 2005 Full Text: \| Download PDF
		Abstract Unavailable

Select this Article		Note on the “Welch” Scattering Apparatus D. J. Prowse American Journal of Physics -- December 1961 -- Volume 29, Issue 12, pp. 854 Online Publication Date: Jul 2005 Full Text: \| Download PDF
		Abstract Unavailable

Select this Article		More Hand Rules Patrick O. Braden American Journal of Physics -- December 1961 -- Volume 29, Issue 12, pp. 855 Online Publication Date: Jul 2005 Full Text: \| Download PDF
		Abstract Unavailable

Select this Article		An Experiment in Probability G. J. Aitchison American Journal of Physics -- December 1961 -- Volume 29, Issue 12, pp. 855 Online Publication Date: Jul 2005 Full Text: \| Download PDF
		Abstract Unavailable

Select this Article		Apparatus Review: Hydrogen Lamp Joseph W. Straley American Journal of Physics -- December 1961 -- Volume 29, Issue 12, pp. 856 Online Publication Date: Jul 2005 Full Text: \| Download PDF
		Abstract Unavailable

Select this Article		Production of Discharges in Gases by Static Electricity D. S. Ainslie American Journal of Physics -- December 1961 -- Volume 29, Issue 12, pp. 857 Online Publication Date: Jul 2005 Full Text: \| Download PDF
		Abstract Unavailable

Select this Article		Length Contraction Paradox Willard H. Wells American Journal of Physics -- December 1961 -- Volume 29, Issue 12, pp. 858 Online Publication Date: Jul 2005 Full Text: \| Download PDF
		Abstract Unavailable

Select this Article		On the Kelvin and Perfect Gas Temperature Scales D. E. Mapother American Journal of Physics -- December 1961 -- Volume 29, Issue 12, pp. 858 Online Publication Date: Jul 2005 Full Text: \| Download PDF
		Abstract Unavailable

Select this Article		Erratum: Length Contraction Paradox [Am. J. Phys. 29, 365 (1961)] W. Rindler American Journal of Physics -- December 1961 -- Volume 29, Issue 12, pp. 859 Online Publication Date: Jul 2005 Full Text: \| Download PDF
		Abstract Unavailable

Select this Article		New Forms of Graduate Record Examination Advanced Physics Test American Journal of Physics -- December 1961 -- Volume 29, Issue 12, pp. 859 Online Publication Date: Jul 2005 Full Text: \| Download PDF
		Abstract Unavailable

Select this Article		Modern Physics Buildings—Design and Function R. Ronald Palmer, Author, William Maxwell Rice, Author, and G. M. Almy, Reviewer American Journal of Physics -- December 1961 -- Volume 29, Issue 12, pp. 860 Online Publication Date: Jul 2005 Full Text: \| Download PDF
		Abstract Unavailable

Select this Article		The Principles of Nuclear Magnetism A. Abragam, Author and L. C. Hebel, Reviewer American Journal of Physics -- December 1961 -- Volume 29, Issue 12, pp. 860 \| Cited 1 time Online Publication Date: Jul 2005 Full Text: \| Download PDF
		Abstract Unavailable

Select this Article		Principles of Fluid Mechanics Richard A. Kenyon, Author and Raymond J. Seeger, Reviewer American Journal of Physics -- December 1961 -- Volume 29, Issue 12, pp. 861 Online Publication Date: Jul 2005 Full Text: \| Download PDF
		Abstract Unavailable

Select this Article		Quality Science for Secondary Schools Judson B. Cross, Reviewer American Journal of Physics -- December 1961 -- Volume 29, Issue 12, pp. 861 Online Publication Date: Jul 2005 Full Text: \| Download PDF
		Abstract Unavailable

Select this Article		Space and the Atom S. T. Butler, Editor, H. Messel, Editor, and Robert L. Weber, Reviewer American Journal of Physics -- December 1961 -- Volume 29, Issue 12, pp. 862 Online Publication Date: Jul 2005 Full Text: \| Download PDF
		Abstract Unavailable

Select this Article		Science Since Babylon Derek J. de Solla Price, Author and Thornton Page, Reviewer American Journal of Physics -- December 1961 -- Volume 29, Issue 12, pp. 863 Online Publication Date: Jul 2005 Full Text: \| Download PDF
		Abstract Unavailable

Select this Article		Fortschritte der Hochfrequenztechnik J. Zenneck, Editor, M. Strutt, Editor, F. Vilbig, Editor, and Ernst K. Franke, Reviewer American Journal of Physics -- December 1961 -- Volume 29, Issue 12, pp. 864 \| Cited 1 time Online Publication Date: Jul 2005 Full Text: \| Download PDF
		Abstract Unavailable

Select this Article		Planning for Excellence in High School Science Charles Williamson, Reviewer American Journal of Physics -- December 1961 -- Volume 29, Issue 12, pp. 865 Online Publication Date: Jul 2005 Full Text: \| Download PDF
		Abstract Unavailable

Select this Article		Relativistic Electron Theory M. E. Rose, Author and W. H. Furry, Reviewer American Journal of Physics -- December 1961 -- Volume 29, Issue 12, pp. 866 Online Publication Date: Jul 2005 Full Text: \| Download PDF
		Abstract Unavailable

Select this Article		An Introduction to the Theory of Vibrating Systems W. G. Bickley, Author, A. Talbot, Author, and Raymond J. Seeger, Author American Journal of Physics -- December 1961 -- Volume 29, Issue 12, pp. 866 Online Publication Date: Jul 2005 Full Text: \| Download PDF
		Abstract Unavailable