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)

Presents a general review of current practical applications of the properties of superconducters. The devices are classified into groups according to the property that is of primary importance. The article is inteded as a first introduction for students and professionals. (Author/DS)

The Nuclear Safety Information Center (NSIC) serves as a focal point for the collection, analysis and dissemination of information related to safety problems encountered in the design, analysis, and operation of nuclear facilities. (Author/AB)

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)

Defines the role of charge conjugation (C), parity (P), and time reversal (T) symmetries in elementary-particle physics. (RR)

Describes mechanical systems which serve as analogs to phenomena connected with the time independent Schrodinger wave education. Bibliography. (LC)