Examples are presented of the use of the direct product in chemical group theory. (BB)

The neglect of neutrino emission during nuclear beta decay in many general chemistry textbooks is discussed. (BB)

Discusses changes that have taken place during the period 1951-1976 in the physics syllabuses and tests formulated by the Joint Matriculation Board for 0-level and A-level physics in Great Britain. (MLH)

Describes an experimental technique for determining liquid dielectric constants by measuring the rise of the liquid in a paralled-plate capacitor at a known voltage. (MLH)

Gives an outline of a physics course for fine arts students majoring in photography and for other nonscience students interested in photography. (MLH)

Preservice physics teachers in a British university completed a word association test by supplying five physical quantities which they associated with a number of electromagnetic stimulus concepts. Gives analysis of concept linking as it may occur in the students' cognitive structures. (MLH)

Discusses and clarifies the confusion arising from the use of the terms "mass,""volume,""matter,""mole," and "Avogadro's number." Suggests three laboratory activities concerning mass, volume, and number of particles in a given volume. (CS)

Describes a course on atomic collisions in solids operated jointly by the Universities of Salford and Sussex, England. Includes discussions of philosophy and aims, teaching and learning strategies, assessment methods, problems and rewards. (LS)

Reviews the principal sources of natural and man-made radiation, current representative levels of radiation exposure in our daily lives, and possible harmful effects of this exposure. (MLH)

Discusses characteristics of Nuffield physics curricula, such as the emphasis on understanding physical concepts and open-ended laboratory experiments. (MLH)

Discusses the study of interference patterns with Michelson's interferometer using a laser beam rather than a sodium arc as a light source. (MLH)

Discusses the course content and teaching techniques of two one-quarter descriptive physics courses which have been particularly successful. Reports on large enrollments and positive reception by students and faculty. (MLH)

A comparative study with an established course in introductory physics presented according to traditional and Keller plan methods showed that many more students achieved mastery in a self-paced course. (MLH)

Presents four short articles on: a power supply for the measurement of the charge-to-mass ratio of the electron; a modified centripetal force apparatus; a black box electronic unknown for the scientific instruments laboratory; and a simple scaling model for biological systems. (MLH)

Briefly describes nine recipients honored at the annual meeting of the American Association of Physics Teachers for exceptional contributions to the teaching of physics. (MLH)