A secondary school teacher presents his teaching methodology concerning the kinetic theory of gases and gas laws. (CP)

Discusses the impact of radioactive waste management system on social and political development. The article also presents (1) types of information necessary to estimate the costs and consequences of radioactive waste management; and (2) an index of radioactive hazards to improve the basis for policy decisions. (HM)

Light-emitting diodes (LEDs) are described and three classroom experiments are given, one to prove the, low power requirements and efficiency of LEDs, an LED on-off detector circuit, and the third an LED photoelectric smoke detector. (BB)

Describes a one quarter introductory college physics course for nonscience majors which concentrates upon energy, energy systems, and relevant practical situations exemplifying energy laws. Results indicate the course is also suitable as a preparatory course for preprofessional students. (SL)

Reports research results of formal versus informal instruction effects on retention. Subjects were 70 undergraduates in first year physics (one control, one informal class, one formal class). A test conducted seven weeks after course completion showed significantly higher retention by the informal group. (SL)

Describes a simple computing system which can solve the quantum mechanical problem of a particle trapped in a rectangular potential well. (SL)

Describes an apparatus for demonstrating the transmission line propagation and radiation of electromagnetic waves in the 160-170 MHZ v.h.f. region. (SL)

Reports on a high school egg dropping contest as a means of increasing student interest in science. (SL)

Provides contributed suggestions in applied topics of secondary school physics. Entries include notes on instructional materials, methodology and laboratory techniques. (CP)

Discusses the determination of eutectic composition, the mathematics of chemical equilibrium, the wave functions of one-electron orbitals, and the use of pharmacological agents in introductory chemistry courses. (SL)

Describes a one semester physics laboratory course which requires students to play roles of scientists, researchers, and technicians. (SL)

Describes an introductory individualized physics laboratory system for science and engineering students. (SL)

Considered are parallel and perpendicular relative velocities and their effect on the minimum time it takes a boat to cross a river. (Author/MA)

Presents basic theory of silicon solar cells and discusses their use in experiments in undergraduate teaching laboratories. (SL)

Describes a technique for illustrating basic chemical engineering skills in reactor design and process analysis. (SL)