Presents a mechanics problem illustrating that Newton's second law and the linear conservation of momentum principle must be used in an inertial reference frame. Provides an analysis of the problem. (YP)

Presents a lesson in the mechanics of rotation which deals with setting the playground swing into motion. Discusses the scientific principles involved in these procedures. Illustrations of several explanations are included. (RT)

Describes a four-year undergraduate course which covers mechanical/manufacturing engineering and management functions emphasizing problem solving. Outlines the course structure and project work in each year. (Author/YP)

Presents background information related to astronomy for high school students. Discusses the differences between astronomy and astrophysics, and the employment of the astronomy graduates. Lists degree programs in astronomy and related subjects in an appendix. (YP)

Described are two investigations carried out in a high school biology department using a domestic microwave oven to compare the relative attributes of the autoclave and microwave oven in school use. Discussed are equipment, methods, and results of each investigation. (Author/CW)

Described is a simple, safe, and inexpensive experiment which allows secondary school pupils to observe how fungi and bacteria grow and interact with each other. Included are discussions of materials, methods, observations, and a historical comment. (Author/CW)

Explained are differences in communication, perception, arousal, and motivation for both teaching and learning styles. Experiential education is distinguished from experiential learning, and salient educational strategies are integrated into the educational cycle. (Author/CW)

Multi-group discriminant analysis was used to identify the pre-enrollment demographic and academic factors that best separate the success classes in the first-year examinations of science students at the University of Benin. The predictor of success was performance in specialist subjects of the matriculation examination. (Author/MLW)

Introduced are two experiments: radon detection method shows real data using vacuum cleaner, soft toilet paper, and Geiger-Muller tube; critical potentials measurement describes the operation of Teltron tube with VELA. (YP)

Explains mechanisms of 19th-century vacuum pumps. Describes demonstrations using the pump including guinea and feather tube, aurora tube, electric egg, Gassiots cascade, air mill, bell in vacuum, density and buoyancy of air, fountain in vacuum, mercury shower, palm and bladder glasses, Bacchus demonstration, pneumatic man-lifter, and Magdeburg…

Described is a physical pendulum experiment with variable pivot as an example of maximizing computer benefits in laboratory interfacing. The laboratory procedures using spreadsheet graphics package are discussed. A diagram of the pendulum, basic formulas, and theoretical curve is provided. (YP)

Discussed are several topics on medical imaging including x-rays and Computer Assisted Tomography (CAT) scans, magnetic resonance imaging, fiber optics endoscopy, nuclear medicine and bone scans, positron-emission tomography, and ultrasound. The concepts of radiation dosage, electrocardiograms, and laser therapy are included. (YP)

Investigates the paths of three different points in the rigid body after receiving a sudden blow by a horizontal force. Describes the setup, laboratory procedures, and results with mathematical expressions and ink tracings of the paths. (YP)

Discusses the etymology of physics words. Provides a list of English words and their original meaning. (YP)

Describes some of the realities associated with engineering careers. Emphasizes the importance of giving students a broader understanding of life as an engineer. Indicates that groups should support research programs to investigate more effective use of trained persons who have been discarded in midcareer. (RT)