Describes a lesson that utilized inquiry to teach the students a scientific concept and to emphasize the fact that they shouldn't jump to conclusions. (LS)

Describes the use of disc or ring magnets magetized axially and iron discs, in conjunction with an overhead projector, as a model of nuclear structure and of complete molecules. (GS)

Proposes that science teaching be based upon experimental work of the students, but most Italian schools are not equipped for this. This implies the development of inexpensive kits and syllabuses which can realistically be used in the schools. Provides one example of a suitable kit for individual experiments on electricity and magnetism. (GS)

Proposes the use of problems of the everyday world to motivate students to master basic physical principles. Cites the example of conversion of solar energy by a photovoltaic cell as a source of topics in electricity and solid state physics. (CP)

Offers a course description of an introductory course in physics for nonscientists. The history of research into extrasensory perception is used as evidence of the scientific method. Lecture demonstrations are discussed. (Author/CP)

Provides schematics and discussion needed to construct an inexpensive device for classroom demonstrations involving beats and interference. (CP)

Traces the inception of laboratory activities in the instruction of physics in American secondary and higher education institutions. In particular, the impact of Edwin Hall on secondary school physics instruction is described. (CP)

Applies the charge cloud model of atomic and molecular structure to three problems to show simplicity of calculations and interpretation of results. (CP)

Describes a method to experimentally determine the longitudinal shift of a microwave beam at total internal reflection. Suggests that the activity be incorporated into an undergraduate laboratory program due to its ease in set-up and clarity of results. (CP)

Presents numerous questions concerning transportation systems, energy consumption, noise, air pollution and other transportation oriented topics. Solutions are provided using undergraduate pre-calculus mathematics. (CP)

Analyzes three secondary and college physics texts of the 19th century and compares them to current physics texts. (LS)

Describes a modular approach to science scheduling in use at a polytechnic institution. Along with various course alternatives, students spend one year during training in an industrial setting. (CP)

A Columbia University economist takes a look at bicentennial America and asks: Can the United States survive another 200 years? He finds that the country must come to grips with the fact that the "Age of Plenty" is about over. (Author/BT)