States that the major problem in learning quantum mechanics is often the student's ignorance of classical mechanics and that one conceptual hurdle in quantum mechanics is its statistical nature, in contrast to the determinism of classical mechanics. (MLH)

Describes the procedure, equipment, results, and weaknesses of an experiment conducted by Nevil Maskelyne at Schehallien peak in Scotland; the purpose of the experiment was to collect data for the calculation of the mean density of the earth and to measure the universal gravitational constant. (MLH)

Shows how physics can be used to analyze and prevent traffic accidents by determining critical speeds on curves, the behavior of motor cycles and stability of articulated vehicles, and the visibility that is needed to make a minor road junction safe. (MLH)

Demonstrates that when a system of attracting or repelling bodies is bound, its rest mass will generally be different than the sum of the rest masses of the individual bodies. The mass excess or defect is simply related to the stored potential energy of the system. (Author/MLH)

This booklet in the "Understanding the Atom" series includes annotated bibliographies for children (grade level indicated) and adults. Over 100 basic books on atomic energy and closely related subjects are alphabetized by title and an author index. A list of publisher addresses are included. A brief introduction to library usage is given. The…

Divides the components of the energy crisis into those which demand immediate, moderate term, and long term research efforts. Delineates specific topics in each category and solicits physicists' efforts in these areas. (CP)

In the first part of this article, brief reviews were given of the atomic-scale mechanisms by which crystalline solids deform and the nature of the interface between such solids and their environment. In this part, the mechanisms of a representative range of surface and environment sensitive mechanical phenomena are explained. (Author/CP)

Presents a chronicle of the life of American born Benjamin Thompson. His private life as well as descriptions of his scientific experiments are discussed. (CP)

An analysis of the minimum stopping distance problem is presented taking into account the effect of weight transfer on nonskidding vehicles and front- or rear-wheels-skidding vehicles. Expressions for the minimum stopping distances are given in terms of vehicle geometry and the coefficients of friction. (Author/BB)

Comments on a news item on rail traffic that is meant to promote conservation of energy. (GA)

Reviews recent developments in the field of laser fusion. (SL)

Describes a method for using ferrofluids to study steady-state resonant vibrations at liquid-air interfaces. (SL)

Discusses the difficulty of predicting wave structure of two phase gas-liquid flow in pipes. (SL)

Argues that previous definitions of work and heat are inappropriate. Presents new definitions that are formulated using experimental quantities, claiming that they apply equally well to reversible and irreversible processes. Indicates some of the problems with earlier definitions and applies the new definitions to the First Law of thermodynamics.…

Explains current knowledge about the makeup of matter at the microscopic (and even more infinitesimal) levels, accentuating the role of accelerators in the process and considering whether more fundamental particles may exist. Classification of subatomic particles, hadrons, quarks, and gluons are among the areas examined. (JN)