Discussed is the physics that underpins Schuster's technique for obtaining a parallel light beam for use in various prism and grating experiments. Basic physics concepts using geometrical optics of prism, together with elementary differential calculus are explained as well as the mechanics of Schuster's technique. (KR)

Alternatives to the traditional unknown tests that permit a clear and unequivocal differential identification decision between Bacillus subtilis and Bacillus megaterium are presented. Plates of Phenylethyl Alcohol agar with Blood (PEAB), slants of Bile Esculin agar and plates of DNA agar are used. The materials, methods, results, and conclusions…

The forward force of water on a hose is calculated using only the pressure gradient, the radius and length of the hose. The misconception about recoil on the nozzle is discussed. Dissipation energy and the consequent heat generation in a fluid flow are also described. (KR)

A Brooklyn College (New York) science course for nonmajors includes a unit on drugs and poisons using material from television news, investigative reporting, and fictional series. The films make some of the more abstract course material palatable and interesting, and enhances awareness of the hazards and benefits of chemicals. (MSE)

The science/technology/society (STS) programs at the University of Quebec at Montreal and in Quebec are described. The system of community services, the university-labor programs, the university-women's program, and the university-school relations are discussed. (KR)

The intellectual, institutional, and ecological problems confronting the sociological study of technology are discussed. The history of the technology-sociology relationship is included. The world's need of the concepts, theories, and research findings that sociological study of technology can provide is emphasized. (KR)

The drawn ideas of inventors Edison and Bell are analyzed in a systematic way to help understand the inventive process and how inventors think. By storing sketches on a computer the researchers have been able to recreate the probable lines of reasoning used by the inventors. (KR)

An upper-class college seminar-style course in which students work on semester-long research papers on a variety of anomalous claims and subjects is described. A list of topics chosen in the course and a copy of an opinion survey on paranormal and anomalistic phenomena are included. (KR)

Activities that consider the courtship behavior and mating patterns of millipedes are presented. The functional significance of a behavior that has evolved through indirect competition between males is discussed. The procedures for seven experiments, results, and interpretations are included. (KR)

An activity simulating natural selection in which wild birds are predators, green and brown pastry "baits" are prey, and trays containing colored stones as the backgrounds is presented. Two different methods of measuring selection are used to describe the results. The materials and methods, results, and discussion are included. (KR)

Presented are the results of a study of high school and college students concerning their thinking about functions of the human body. It was shown that students' thinking could be positively changed over the short term from teleologic to mechanistic. Sample survey questions are included. (CW)

The confusion by students on the use of three terms in their writing is discussed. The definitions of catabolite repression, constitutive, and ribosome binding site, given in the glossaries of 10 textbooks, are compared with the use of these terms in students' papers. (KR)

Eleven demonstrations of light polarization are presented. Each includes a brief description of the apparatus and the effect demonstrated. Illustrated are strain patterns, reflection, scattering, the Faraday Effect, interference, double refraction, the polarizing microscope, and optical activity. (CW)

Discussed are the results of a survey of 92 chemical engineering departments in the United States. Semester hours, curricular area distribution including basic courses and electives, and staffing data are summarized and discussed. (CW)

Discusses the following questions for science faculty: What do we teach? How do we teach? How do we evaluate or assess what we teach? (PR)