摘要:

Prepared at the request of the AAPT Committee on Resource Letters and the AAPT Committee on Tests; supported by a grant from the National Science Foundation.This is one of a series of Resource Letters on different topics, intended to guide college physicists to some of the literature and other teaching aids that may help them improve course contents 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. Please send such communications to Professor Arnold Arons, Chairman, Resource Letter Committee, Department of Physics, Amherst College, Amherst, Massachusetts.Notation:The letterEafter an item number indicateselementaryreading level, the letterIindicatesintermediatelevel, and the letterAindicatesadvancedmaterial principally suited for senior, graduate study. An asterisk (*) indicates items particularly recommended for introductory study.Additional copies:Available from American Institute of Physics, 335 East 45 Street, New York, New York 10017. When ordering, request Resource Letter CM-1 and enclose a stamped return envelope.

ISSN:0002-9505    

DOI:10.1119/1.1971062

出版商:American Association of Physics Teachers    

年代:1965

数据来源: AIP

摘要:

A simplified arrangement is described for making gray wedge and two-dimensional coincidence pulse-height analyses. Examples of different types of spectra are given and application is made to an experiment on the Compton effect.

ISSN:0002-9505    

DOI:10.1119/1.1971064

出版商:American Association of Physics Teachers    

年代:1965

数据来源: AIP

摘要:

The quantum mechanical, time-dependent wave equation in generalized coordinates is obtained by a slight modification of Schrödinger's original derivation. If the classical Hamiltonian for a system is known, the variational technique may be applied to the Hamilton-Jacobi equation to yield an Euler-Lagrange equation. This latter is then the wave equation for the system. The method, which is generally easy to apply, is illustrated by applications to a single particle in curvilinear coordinates and to a symmetric top molecule.

ISSN:0002-9505    

DOI:10.1119/1.1971067

出版商:American Association of Physics Teachers    

年代:1965

数据来源: AIP

摘要:

Heinrich Hertz has shown how Maxwell's equations can be derived by a process of successive approximations from the earlier action-at-a-distance theory. The method has a certain similarity with the Picard method of successive approximations. A mathematical error in Hertz's paper is corrected. The historical significance of Hertz's paper is stressed.

ISSN:0002-9505    

DOI:10.1119/1.1971068

出版商:American Association of Physics Teachers    

年代:1965

数据来源: AIP

摘要:

The external dc field of a long solenoid is investigated. An exact solution is obtained in the form of an infinite series. For three cases, the series reduces to simple analytical expressions amenable to slide-rule computation: (a) the infinitely long solenoid for which the external field is zero, (b) the field far from the ends of a long finite solenoid for radial distances close to the solenoid surface, and (c) the long solenoid at radii comparable to and greater than the solenoid half-length. The variations with radial distance of the approximate expressions derived for cases (b) and (c) are plotted parametrically over a large-range of radial distances. Exact results are also plotted for two typical solenoid length-to-radius values obtained by numerical integration. Agreement of the exact results with the approximate expression for case (c) over the entire range of radial distances is extremely good. Expression (b) is a good approximation only for small radial distances; however, for typical solenoid length-to-radius values, the two expressions (b) and (c) converge for smallr.

ISSN:0002-9505    

DOI:10.1119/1.1971070

出版商:American Association of Physics Teachers    

年代:1965

数据来源: AIP

摘要:

This paper deals with the definition and properties of the velocity space of special or general relativity. The metric naturally induced by the enveloping space-time is that of a space of constant negative curvature which is referred to here as a 3-dimensional Lobachevsky space. Our purpose is to show how this notion can simplify or reinterpret ideas of relativistic kinematics. Supplementing the more familiar applications, three others are given here which make essential use of the curvature, namely to the derivations of aberration, Thomas precession, and the forms of relativistic collision invariants.

ISSN:0002-9505    

DOI:10.1119/1.1971072

出版商:American Association of Physics Teachers    

年代:1965

数据来源: AIP

摘要:

Several ways to improve instruction in undergraduate-laboratory report writing are presented. These involve increasing the student's awareness of the importance of good written expression, showing him examples of good writing, and giving him mature criticism on his reports. The concern is expressed that more attention must be given to this instruction in the future or the quality of writing will decrease due to less personal contact with senior staff.

ISSN:0002-9505    

DOI:10.1119/1.1971073

出版商:American Association of Physics Teachers    

年代:1965

数据来源: AIP

摘要:

The general theory of thermodynamic fluctuations in canonical ensembles is derived in a simple and exact form in terms of the semiinvariants (or “cumulants”) of the distribution.

ISSN:0002-9505    

DOI:10.1119/1.1971075

出版商:American Association of Physics Teachers    

年代:1965

数据来源: AIP

摘要:

A simple lecture demonstration is described, in which light from a gas-discharge laser is diffracted at grazing incidence by the rulings of a steel scale. The wavelength of light is obtained by measuring the pattern spacings and the distance from the ruler to the screen.

ISSN:0002-9505    

DOI:10.1119/1.1971076

出版商:American Association of Physics Teachers    

年代:1965

数据来源: AIP

摘要:

By use of wavelengths of 4 cm, complete demonstrations in microwave optics were mounted on boards the size of a sheet of writing paper. For lecture demonstrations they were constructed on Plexiglass plates above the 10-in.-sq. glass platform of an overhead projector. Detailed descriptions of the constructions were made for Lloyd's mirror, Michelson's interferometer and a grid-detection interferometer.

ISSN:0002-9505    

DOI:10.1119/1.1971077

出版商:American Association of Physics Teachers    

年代:1965

数据来源: AIP