Contains a poster dealing with energy uses for use in secondary-level classes. On the reverse side of the poster, there is a discussion of alternative energy resources. Activities in which students calculate the operating costs of solar-powered cars and the size of solar collectors needed to heat water are included. (AM)

The latest development in solar energy is a four-acre pond planned for Clark College in Vancouver (Washington). Filled with brine, it will serve both as collector and heat storage tank for the entire campus. (Author)

Describes the structure, services and role in the development of solar energy of the Solar Energy Information Data Bank. (RAA)

Twelfth in a series of reports on solar energy, this article provides information relating to the following questions: (1) economic cost of solar-thermal-electric central power plants; (2) cost comparison with nuclear or coal plants; (3) locations of this energy source; and (4) its use and social costs. (CS)

Discusses factors that determine whether or not a sunburn is possible under glass, including the spectral dependence of the skin's sensitivity to sunburn, the ground-level spectrum of solar radiation, and the wavelength dependence of the transmission for the particular piece of glass. Concludes that it is possible to get sunburned through glass.…

Scientists using NASA's Swift satellite say they have found newborn black holes, just seconds old, in a confused state of existence. The holes are consuming material falling into them while somehow propelling other material away at great speeds. "First comes a blast of gamma rays followed by intense pulses of x-rays. The energies involved are much…

This module, one of 25 on vocational education training for careers in environmental health occupations, contains self-instructional materials on using ionizing radiation detectors. Following guidelines for students and instructors and an introduction that explains what the student will learn are three lessons: (1) naming and telling the function…

Presents an overview of the relation of nuclear power to human health and the environment, and discusses the advantages and disadvantages of nuclear power as an energy source urging technical educators to inculcate an awareness of the problems associated with the production of energy. Describes the fission reaction process, the hazards of…

Radiation is an important aspect of daily life. We interact with radiation from several sources, both natural and manmade, and in fact life on Earth depends on it. Although the general population, and students in particular, can recognize its importance, it is not clear whether they understand its meaning. Bearing these considerations in mind, a…

Aims: To compare voice quality as defined by formant analysis using a sustained vowel in patients who have undergone a partial glossectomy with a group of normal subjects. Methods & Procedures: The design consisted of a single centre, cross-sectional cohort study. The setting was an Adult Tertiary Referral Unit. A total of 26 patients (19…

This booklet is about the disposal of high-level nuclear waste in the United States with a particular focus on Yucca Mountain, Nevada as a repository site. Intended for readers who do not have a technical background, the booklet discusses why scientists and engineers think high-level nuclear waste may be disposed of safely underground. An…

Discussed are the properties, chemistry, generation of precursors, and use in organic synthesis of this isotope of carbon. The use of carbon-11 in research is emphasized. Pitfalls and possibilities are described. (CW)