Provides the results of an annual review of nontechnical astronomy books written for readers without extensive background in science or mathematics. Includes reviews of books on topics including amateur astronomy, comets, computers, cosmology, galaxies, pseudoscience, the solar system, space exploration, stellar evolution, telescopes and…

Introduces a photogate arrangement using a photo-reflective sensor for air track experiments. Reports that the sensitivity to sunlight can be eliminated and a mechanically more convenient package produced. Shows the mounting, circuit, and usage of the photogate. (YP)

Describes a program to support lectures on analytical centrifugation, and to illustrate the manner in which useful analytical data about macromolecules can be obtained from simple centrifugation studies without the need for mathematical expertise. Discusses the background, methods, calculations, and results involved in this activity. (CW)

Describes how to construct a simple device that students can use to estimate how high their kites are flying, as well as the heights of other objects. (TW)

Describes several ways to build data collection devices for microcomputers. The interface devices connect with either the computer's game port or an analog-to-digital converter. Discusses how teachers have designed the equipment and appropriate software to use with the computer in biology teaching. (TW)

Presents two methods used to measure the refractive indices and double-refraction of fibers. Experiments are described, with one involving the use of Pluta microscope in the double-beam interference technique, the other employing the multiple-beam technique. Immersion liquids are discussed that can be used in the experiments. (TW)

Discusses findings from report "Maintaining America's Scientific Productivity: The Necessity of the Liberal Arts Colleges" produced at Oberlin College. Characterizes science majors, faculty, and state of facilities at such schools, and speculates on needed financial support to maintain and enhance their current position. (JM)

Describes science laboratory work at Hephaistos, a state school in England for severely physically handicapped students of above average intelligence. General and specific solutions are presented for students who have lack of coordination, weakness in hands and arms, communication problems, impaired spatio-visual perception, and inability to…

Highlights findings, conclusions, and recommendations from a 3-year study of academic laboratory equipment conducted by three university associations. Although ultimately the problem's solution will require increases in funding, several actions (which are described) could be taken to improve the efficiency of acquisition, management, and use of…

Describes several methods of executing lecture demonstrations involving the recombination of the spectrum. Groups the techniques into two general classes: bringing selected portions of the spectrum together using lenses or mirrors and blurring the colors by rapid movement or foreshortening. (JM)

Outlines Marquette University's response to declining enrollments and financial restraints for its undergraduate biology curriculum, beginning with a description of the old program and its problems. Discusses redefinition of laboratory role, uncoupling and reducing number of laboratories required, teacher responsibility changes, centralized…

Reviews software packages used in microcomputer-based laboratory (MBL) experiments. They include programs for a precision timer, frequency meter, heat and light experiments, sound experiments, spectrum analysis, biofeedback analysis, and others. Reviews include a brief description, source, current cost, and equipment requirements. (JN)

Describes mushroom growing as a school project, a method for illustrating need for carbon dioxide in photosynthesis, construction of a simple phytoplankton sampler, cell division activity using playing cards, blood separation activity, measurement of adaptation and selection pressures, computations in field ecology, and an activity demonstrating…

Gives background information on film selection, lighting, accessory equipment, and techniques appropriate for successful microphotography. Provides a technique for calibrating magnification, light intensity, and shutter speed. (JM)

Lists 25 energy activities and describes two experiments (materials needed and procedures used included) for secondary/middle school students. Like activities for younger children listed in part 1 (appearing in Vol. 65, No. 229), these activities are designed to provide concrete experiences for teaching various aspects of the energy concept. (JM)