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Issue 12 | Dec 1971 | pp. 1423-1551

Issue 11 | Nov 1971 | pp. 1287-1421

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Select this Article		Resource Letter BE-1 on Biomedical Engineering Curtis C. Johnson American Journal of Physics -- December 1971 -- Volume 39, Issue 12, pp. 1423 Online Publication Date: Jul 2005 Full Text: \| Download PDF
	+ -	Show Abstract Prepared at the request of the AAPT Committee on Resource Letters. This is one of a series of Resource Letters on various topics, intended to guide college physicists to literature and other teaching aids that may help them improve course content in specified fields of physics. No Resource Letter is meant to be exhaustive and complete. In time, there may be more than one letter on some of the main subjects of interest. Comments and suggestions concerning the content and arrangement of letters as well as suggestions for future topics will be welcomed and should be addressed to Professor Joel E. Gordon, Chairman, AAPT Committee on Resource Letters, Department of Physics, Amherst College, Amherst, Mass. 01002. Notation: The letter E after an item indicates elementary level, useful principally for high school and introductory college use; the letter I indicates intermediate (junior, senior) level; and the letter A indicates advanced material, principally suited for senior, graduate level. An asterisk (∗) indicates items particularly recommended for introductory study.

Select this Article		Application of the Theory of Irreducible Tensor Operators to Molecular Hyperfine Structure Robert L. Cook and Frank C. De Lucia American Journal of Physics -- December 1971 -- Volume 39, Issue 12, pp. 1433 \| Cited 18 times Online Publication Date: Jul 2005 Full Text: \| Download PDF
	+ -	Show Abstract The theory of irreducible tensor operators is employed to evaluate the matrix elements of the electric quadrupole and magnetic dipole interactions for molecules with several coupling nuclei. Two different coupling schemes are considered, namely the unequal coupling and nearly equal coupling representations. The relative intensities of the hyperfine transitions are also derived. Application of the theory is stressed in an expository manner.

Select this Article		The Discovery of the Beta Particle Marjorie Malley American Journal of Physics -- December 1971 -- Volume 39, Issue 12, pp. 1454 Online Publication Date: Jul 2005 Full Text: \| Download PDF
	+ -	Show Abstract Natural radioactivity was discovered by Henri Becquerel early in 1896. Only after three and a half years had passed was it determined that (at least) part of this radiation consisted of material particles. Towards the end of 1899 three different sets of investigators in as many countries found independently that radium rays were bent when they traversed a magnetic field. This paper delineates both the reasons for this delay and the events which converged in 1899 to make likely the simultaneous discovery of the deflection of the beta rays in a magnetic field. It also indicates the significance this discovery had for the future development of radioactivity.

Select this Article		Linearization of Schwarzschild's Line Element: Application to the Clock Paradox R. Broucke American Journal of Physics -- December 1971 -- Volume 39, Issue 12, pp. 1461 Online Publication Date: Jul 2005 Full Text: \| Download PDF
	+ -	Show Abstract This article studies the relativistic theory of the motion of a particle in the presence of a uniform acceleration field. The problem is introduced as a linearization of the fundamental line element of general relativity. The linearized line element is a solution of Einstein's field equations. The equations of geodesics corresponding to this line element are solved and applied to the clock paradox problem.

Select this Article		Lorentz Transformations in the Presence of a Uniform Gravitational Field R. Broucke American Journal of Physics -- December 1971 -- Volume 39, Issue 12, pp. 1465 Online Publication Date: Jul 2005 Full Text: \| Download PDF
	+ -	Show Abstract This article describes a Lorentz-like transformation between a fixed frame and an inertial frame that is free falling due to the presence of a uniform gravitation field. The application to the clock paradox problem and some connections with similar works are also discussed.

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BROWSE VOLUMES

Dec 1971

Volume 39, Issue 12, pp. 1423-1551

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Select this Article		The Robert A. Millikan Lecture Award 1971 American Journal of Physics -- December 1971 -- Volume 39, Issue 12, pp. 1468 Online Publication Date: Jul 2005 Full Text: \| Download PDF
	+ -	Show Abstract The Robert A. Millikan Lecture Award is given annually to a physicist chosen by the Committee on Awards of the American Association of Physics Teachers to be honored for notable and creative contributions to the teaching of physics. The lecture and award are presented at the Summer Meeting and are made possible by an annual gift from Prentice-Hall, Inc. This year (1971) the Committee on Awards honors Professor Harry F. Meiners of Rensselaer Polytechnic Institute.

Select this Article		Problems of Science Education in Underdeveloped Countries Harry F. Meiners American Journal of Physics -- December 1971 -- Volume 39, Issue 12, pp. 1469 \| Cited 1 time Online Publication Date: Jul 2005 Full Text: \| Download PDF
		Abstract Unavailable

Select this Article		Are Resonance Residues Real? Frank Henyey American Journal of Physics -- December 1971 -- Volume 39, Issue 12, pp. 1477 \| Cited 1 time Online Publication Date: Jul 2005 Full Text: \| Download PDF
	+ -	Show Abstract It may appear that the real analyticity and unitarity conditions on a scattering amplitude should imply that the residues of resonances are real, just as the residues of bound states are real. We extract the residues in two simple models, a potential U(r) = Aδ(r−r₀) and a K-matrix model. The amplitudes in these models are real analytic and unitary, yet the resonances have complex residues, as indeed they should. Based on the latter of these models we estimate the imaginary part of the ρ meson's residue as an interesting case in hadronic physics.

Select this Article		Physics for Musicians Thomas D. Rossing American Journal of Physics -- December 1971 -- Volume 39, Issue 12, pp. 1480 Online Publication Date: Jul 2005 Full Text: \| Download PDF
	+ -	Show Abstract A musical acoustics course, which stresses laboratory work in electronics and acoustical measurements, is described. Through this course, the instructor and several students have become interested in electronic music and have constructed a computer-controlled electronic music synthesizer. Courses of this type, which present physics to musicians and artists, are particularly significant because of the similarities between science and the arts.

Select this Article		Mathematical Formulation of the Interference Laws of Fresnel and Arago Edward Collett American Journal of Physics -- December 1971 -- Volume 39, Issue 12, pp. 1483 \| Cited 4 times Online Publication Date: Jul 2005 Full Text: \| Download PDF
	+ -	Show Abstract The mathematical representation of each of the four interference laws of Fresnel and Arago is presented. Each of the laws is characterized by a unique Stokes vector. These vectors are arrived at by a matrix analysis of the, interference experiments of Fresnel and Arago in which only polarizers are used. The historical motivation that led Stokes to introduce the parameters that now bear his name is noted. The similarity in the approach taken by Stokes to represent the fundamental properties of the classical optical field in terms of observables is compared with Heisenberg's approach to the formulation of quantum mechanics. The mathematical statements that characterize unpolarized light are developed. These statements are then used to determine the Stokes vectors that describe each of the four interference laws of Fresnel and Arago. In a final section of the paper the mathematical apparatus developed here is used to describe Young's interference experiment with unpolarized light.

Select this Article		Equivalence of the Zeroth and Second Laws of Thermodynamics Stanley C. Luckhardt and John O. Kessler American Journal of Physics -- December 1971 -- Volume 39, Issue 12, pp. 1496 Online Publication Date: Jul 2005 Full Text: \| Download PDF
	+ -	Show Abstract The interdependence of the zeroth and second laws of thermodynamics is demonstrated by the interrelation of conceptual perpetual motion machines that violate these laws.

Select this Article		Science for the Nonscience Major—Problem and Partial Prescription Herbert Priestley American Journal of Physics -- December 1971 -- Volume 39, Issue 12, pp. 1498 Online Publication Date: Jul 2005 Full Text: \| Download PDF
	+ -	Show Abstract After a brief review of the need for some experience in science for the nonscience major and a listing of what appear to be desirable objectives for that experience, details are given of a course which has been offered for the past four years.

Select this Article		Mechanical Analogs of Time Dependent Josephson Phenomena D. B. Sullivan and J. E. Zimmerman American Journal of Physics -- December 1971 -- Volume 39, Issue 12, pp. 1504 \| Cited 13 times Online Publication Date: Jul 2005 Full Text: \| Download PDF
	+ -	Show Abstract The pendulum analog of a small-area Josephson junction between two superconductors is coupled to the analogs of other circuit elements to demonstrate a variety of time dependent phenomena observed with actual devices. The analogy between electrical circuit and mechanical device is established through a Lagrangian formalism. The analog provides a simple and quick means of developing physical insight into this highly nonlinear system. To demonstrate the value of the analog we consider, as one example, the problem of a junction coupled to a resonant cavity and present a result that was missed by a previous solution.

Select this Article		DITRAN: A Program for Translating Physics Dialogs into Templated Conversational CAI Programs J. Bauer, J. Magerlein, and N. Sherman American Journal of Physics -- December 1971 -- Volume 39, Issue 12, pp. 1517 Online Publication Date: Jul 2005 Full Text: \| Download PDF
	+ -	Show Abstract We describe here the structure of a set of computer programs (DITRAN) that translate the text of conversational exchanges appropriate for elementary physics discussions into an operational computer-based dialog. Dialogs produced in this manner are designed as a series of templated subprograms. The structure of a simple template is reviewed. Detailed instructions on the use of DITRAN and a few illustrative examples can be obtained on request. Arrangements may be made to access DITRAN for experiment and development of instructional dialogs.

Select this Article		Parametric Phenomena in Physics Laszlo Adler and M. A. Breazeale American Journal of Physics -- December 1971 -- Volume 39, Issue 12, pp. 1522 \| Cited 3 times Online Publication Date: Jul 2005 Full Text: \| Download PDF
	+ -	Show Abstract Parametric excitation of a resonant system is a self-excitation caused by a periodic variation of some parameter of the system. A brief history of parametric phenomena is given from Faraday and Lord Rayleigh through modern day physics. The general characteristics of “parametric generators” are viewed through a specific example from acoustics, which is treated in detail.

Select this Article		The Electric Dipole Moment of a Moving Magnetic Dipole George P. Fisher American Journal of Physics -- December 1971 -- Volume 39, Issue 12, pp. 1528 \| Cited 8 times Online Publication Date: Jul 2005 Full Text: \| Download PDF
	+ -	Show Abstract The fact that a magnetic dipole μ moving with velocity βc has an electric dipole moment p = β×μ∕c has made periodic appearance in the literature but the importance of this fact and its general utility have not been given sufficient expression. It is the purpose of this paper to show how to derive the equation p=β×∕c and then to use it for a simple description of the atomic spin-orbit interaction.

Select this Article		Instructional Uses of the Computer: Quantum Scattering Theory Steven J. Bardwell American Journal of Physics -- December 1971 -- Volume 39, Issue 12, pp. 1534 Online Publication Date: Jul 2005 Full Text: \| Download PDF
		Abstract Unavailable

Select this Article		A New Degree Program in Physics Peter B. Kahn American Journal of Physics -- December 1971 -- Volume 39, Issue 12, pp. 1535 Online Publication Date: Jul 2005 Full Text: \| Download PDF
		Abstract Unavailable

Select this Article		A Multipurpose Laser Demonstration Experiment W. S. Moore American Journal of Physics -- December 1971 -- Volume 39, Issue 12, pp. 1536 Online Publication Date: Jul 2005 Full Text: \| Download PDF
		Abstract Unavailable

Select this Article		A Note on the Rotating-Mirror Method for Determining the Velocity of Light Joseph F. Mulligan American Journal of Physics -- December 1971 -- Volume 39, Issue 12, pp. 1537 Online Publication Date: Jul 2005 Full Text: \| Download PDF
		Abstract Unavailable

Select this Article		Variations on a Famous White-Light Experiment of Isaac Newton Frank S. Crawford American Journal of Physics -- December 1971 -- Volume 39, Issue 12, pp. 1538 Online Publication Date: Jul 2005 Full Text: \| Download PDF
		Abstract Unavailable

Select this Article		Problem of the Three Lewis Epstein American Journal of Physics -- December 1971 -- Volume 39, Issue 12, pp. 1539 Online Publication Date: Jul 2005 Full Text: \| Download PDF
		Abstract Unavailable

Select this Article		Electric Fields of Moving Charges: A Series of Four Film Loops John C. Hamilton and Judah L. Schwartz American Journal of Physics -- December 1971 -- Volume 39, Issue 12, pp. 1540 \| Cited 2 times Online Publication Date: Jul 2005 Full Text: \| Download PDF
		Abstract Unavailable

Select this Article		A New Amplifier for the Photoelectric Effect and Planck's Constant Experiment Harry H. Hall American Journal of Physics -- December 1971 -- Volume 39, Issue 12, pp. 1542 Online Publication Date: Jul 2005 Full Text: \| Download PDF
		Abstract Unavailable

Select this Article		Plotting Multivariable Graphs on a Teletype Donald L. Shirer, Editor American Journal of Physics -- December 1971 -- Volume 39, Issue 12, pp. 1544 Online Publication Date: Jul 2005 Full Text: \| Download PDF
		Abstract Unavailable

Select this Article		Two Astronomy Dialogs Donald L. Shirer, Editor and Elaine Avner American Journal of Physics -- December 1971 -- Volume 39, Issue 12, pp. 1545 Online Publication Date: Jul 2005 Full Text: \| Download PDF
		Abstract Unavailable

Select this Article		Classical Theory of Electric and Magnetic Fields Roland H. Good, Jr., Author, Terence J. Nelson, Author, and J. H. Wojtaszek, Reviewer American Journal of Physics -- December 1971 -- Volume 39, Issue 12, pp. 1546 Online Publication Date: Jul 2005 Full Text: \| Download PDF
		Abstract Unavailable

Select this Article		Paul Ehrenfest, Volume 1, The Making of a Theoretical Physicist Martin J. Klein, Author and Robert C. Hilborn, Reviewer American Journal of Physics -- December 1971 -- Volume 39, Issue 12, pp. 1546 Online Publication Date: Jul 2005 Full Text: \| Download PDF
		Abstract Unavailable

Select this Article		Relativistic Mechanics R. D. Sard, Author and Arnold Perlmutter, Reviewer American Journal of Physics -- December 1971 -- Volume 39, Issue 12, pp. 1547 Online Publication Date: Jul 2005 Full Text: \| Download PDF
		Abstract Unavailable

Select this Article		Equations of Mathematical Physics V. S. Vladimirov, Author, Allan Jeffrey, Editor, and Franklin E. Schroeck, Reviewer American Journal of Physics -- December 1971 -- Volume 39, Issue 12, pp. 1548 Online Publication Date: Jul 2005 Full Text: \| Download PDF
		Abstract Unavailable

Select this Article		Report of the Executive Officer Will Johnson American Journal of Physics -- December 1971 -- Volume 39, Issue 12, pp. 1550 Online Publication Date: Jul 2005 Full Text: \| Download PDF
		Abstract Unavailable