Presents 21 photographs (with accompanying text) taken by instruments aboard interplanetary probes, including those of the Earth, Mercury, Mars, the Moon, Venus, Jupiter, planetary satellites, and Saturn and its rings. (JN)

Describes apparatus/methodology and provides background information for an experiment demonstrating electrochemical concepts and properties of electrochemical cells. The color of a solution close to an electrode is changed from that of the bulk solution to either of two contrasting colors depending on whether the reaction is oxidation or…

Provides background information and methodology for an experiment in which a mixture of o-, m-, and p-hydroxyacetophenones are separated by thin-layer chromatography (TLC) and in which the constituents are identified and estimated by ultra-violet light spectroscopy. (Author/JN)

Discusses four types of breaking waves (spilling, plunging, collapsing, and surging) and effect of these waves on beaches. Also discusses various patterns left by waves in sand (for example, ripples) and cusps (thin sheets of water forming horizontal curves as they wash up the slope of a beach). (Author/JN)

Philosophical issues and problems related to two contrasting views on the relationship between the constantly changing world of scientific theory and the real physical world (realism and instrumentalism) are discussed. Both accounts have serious limitations when compared to the actual practice and history of science. (JN)

Provides sample output and describes a program for programmable calculators that determines the molecular parameters of any type of diatomic molecule. (CS)

Discusses a common error found in organic chemistry textbooks regarding the phenomenon of "conjugate reduction." Provides a table of experimental data involving the reduction of alpha-, beta-unsaturated compounds. An accompanying discussion explains reasons for the lack of correspondence between textbook information and the experimental…

A brief introduction to the broad field of curve-fitting is provided to help explain the reasoning behind least-squares data fitting, and also to provide useful equations for two functional forms of interest in chemistry. Appendices give program examples written in Fortran and detail the method of Guggenheim. (MP)

Describes a computer program (available from authors) developed to simulate "Growth of a Population (Yeast) Experiment." Students actively revise the counting techniques with realistically simulated haemocytometer or eye-piece grid and are reminded of the necessary dilution technique. Program can be modified to introduce such variables…

Describes a proposal for a new physics program for geology majors at the University of Rome based on a problem-oriented approach and extending the range of physics concepts covered by more traditional courses. Emphasis is put on applying physical concepts to geological problems. (Author/SK)

Presents suggestions intended to help physicists who have not had the benefit of teacher training workshops and programs, including, among others, those on lecturing, conducting laboratories and discussion sessions, preparing tests, and dealing with difficult subject matter. (SK)

Summarizes the twelfth AAPT Apparatus Competition held in New York in January 1981. Lists and briefly describes apparatus of individual award winners. (SK)

Discusses steps to resolve a problem existing at Oklahoma State's Division of Engineering, Technology and Architecture involving the engineering technology and engineering faculty, their curricula and programs. Also identifies characteristics of enqineering and technology. (CS)

Describes the chemical engineering program at the University of Missouri--Rolla, including undergraduate and graduate programs, faculty and their research areas, and research facilities. (SK)

Discusses rationale for and use of multiple choice examinations in material balances, unit operations, reactor design, and process control courses. Describes computer scoring of student reaction to, and future plans for these examinations. (SK)