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)

The third of a series, this article describes prototype experiments which place human decision makers in an interactive decision-making situation, presents results typical of those thus far observed in the prototype experiments, and describes preliminary analysis of the data. Three references are listed. (FM)

Presents three simple water activities, for grades 4-6, to teach about molecular attraction as seen in surface tension and cohesion. (Author/SJL)

Outlines eight science experiments that require no materials except household trash. (SJL)