The diffraction bands caused by a thin transparent plate of glass inserted over half the field in a spectrometer are discussed. (TS)

This Canadian experiment proves the hypothesis that the most effective predictive variables of university academic performance are the grades assigned by Grade 13 teachers rather than external ability tests. (Author/RR)

An attempt to outline the responsibilities of the educational profession to the community as a whole is described. (CK)

Reviews experimental data on various aspects of climate control. Includes a discussion of (1) the physics of cloud seeding, (2) the applications of cloud seeding, and (3) the role of statistics in the field of weather modification. Bibliography. (LC)

Discusses the theory of the Josephson Effect, the derivation of the Josephson voltage-frequency relation, and methods of measuring the fundamental constatn ratio e/h. Various types of Josephson junctions are described. The impact of the measurement of e/h upin the fundamental constants and quantum electro-dynamics is briefly discussed.…

Describes how industrial arts programs can incorporate space age technology into meaningful and interesting learning experiences for students. (GR)

Reports a verification that hot water begins to freeze sooner than cooler water. Includes the investigations that lead to the conclusions that convection is a major influence, water content may have some effect, and the melting of the ice under the container makes no difference on the experimental results. (DS)

This article describes one way of approaching the development of a course in laboratory work in which units are designed in a systematic way." (Author)