Describes the learning theories of G. Stanley Hall and Edward L. Thorndike and their impact on physics instruction in the twentieth century. (SK)

An advanced undergraduate laboratory experiment in inelastic electron tunneling spectroscopy is described. Tunnel junctions were fabricated, the tunneling spectra of several molecules absorbed on the surface of aluminum oxide measured, and mode assignments made for several of the prominent peaks in spectra using results obtained from optical…

Discusses and lists, in table form, the specifications and characteristics of 28 low-cost digital multimeters, including jacks, number of V ranges, max V, cost, approximate percent accuracy, current scales, display, battery life, volume, and manufacturers. Quality of construction, ease of repair, and similar characteristics not reported. (SK)

Provides information about and suggestions for using orbital satellite-carrying amateur radio (OSCAR) and National Oceanic and Atmospheric Administration (NOAA) satellites for instructional purposes. (JN)

A general strategy and specific examples for demonstrations in large physics classes are given. Such "action" demonstrations may involve students moving around the class to demonstrate molecular behavior in different states of matter, and effect of heat in changing state. (JN)

Outlined are procedures for using satellites including the mechanics (plotting satellite positions and obtaining readable signals) and secondary and college activities (using Oscar 8 data telemetry, obtaining weather pictures, using a computer). (DC)

A general discussion of prediction and the use of models as a means of understanding reality is provided, focusing on the application of mathematical models to various scientific disciplines and its role in experimentation. (DC)

Five atomic theory activities feasible for high school students to perform are described based on the following models: (1) Dalton's Uniform Sphere Model; (2) Thomson's Raisin Pudding Model; (3) Rutherford's Nuclear Model; (4) Bohr's Energy Level Model, and (5) Orbital Model from quantum mechanics. (SK)

Discusses how TOPS devices can be improved. New chemistry-physics devices are offered in hopes of encouraging teachers to invent other small devices for projection on a TOPS projector-adaptor. (HM)

Discusses the history of the participation of women in science, particularly physics, and the reasons for the differences between men and women. Discrimination, although difficult to document, is considered in the article. (SA)

Discusses the role, importance, and benefits of performing demonstrations in physics. Suggests that actual demonstrations are more valuable than those presented on films or videotapes. (SK)

Presents the author's viewpoints on the role, benefits, and mechanics of performing physics demonstrations. Suggests that teachers keep a demonstration file. Indicates that demonstrations can be set up in showcases or in hallways. (SK)

Surveys the research of scientists like Joule, Kelvin, Maxwell, Clausius, and Boltzmann as it comments on the basic conceptual issues involved in the development of a more precise kinetic theory and the idea of a kinetic atom. (Author/SK)

Presents a theory concerning the orbital spacing of patterns in the solar system. The orbital distributions of the planets and major satellite systems are fitted with a Bode-type form. Accordingly, the Saturnian system requires vacant orbitals if the best fit is to have an accuracy comparable to that of other systems. (Author/GA)

Discusses the two-capacitor problem by considering the self-inductance of the circuit used and by determining how well the usual series RC circuit approximates the two-capacitor problem when realistic values of L, C, and R are chosen. (GA)