Recounts highlights of a 1980 weekend course at Queens College Environmental Center (New York) focusing on lessons from history and other cultures in using overlooked resources to develop "Appropriate Technology." Practical and innovative energy alternatives discussed include solar energy, wind power, indoor hydroponic farming, shellfish…

Discusses the physical processes involved in the deposition of energy from ionizing radiation in the absorber system. Identifies principles relevant to these processes which are responsible for ionization and excitation of the components of the absorber system. Briefly describes some experimental techniques in use in radiation chemical studies.…

Surveys America's current energy situation and considers means of attaining domestic energy self-sufficiency. Information is presented on hazards of decreasing energy production, traditional energy sources, and exotic energy sources. (Author/DB)

Two experts argue that active solar energy systems are not cost-effective for most school buildings. (Author/MLF)

At the Telluride (Colorado) school, the classroom wing was outfitted with a thick floor slab and a greenhouse space where heat is stored in waterfilled tubes. The gymnasium's southwestern wall was transformed into a Trombe wall by applying 2,000 square feet of glazing. (Author/MLF)

The sun makes its own terms, and they must be acknowledged. The response to these terms is apparent in sections of solar buildings used for high-density development or homes. (Author/MLF)

Discusses new experiments that are being designed to solve the solar neutrino problem and determine the power source of the sun. (HM)

Analyzes simple electrical circuits, showing that for high frequencies they have frequency and time responses identical to the spontaneous radiative decay of atoms. Compares a two-circuit electrical system with a two-level atom. (MLH)

Shows that radioactivity is a binomially distributed process, based on a probability equation approach, for any value of the observation time. (MLH)

Discusses theories and research concerning the radiation produced by electrons when they are accelerated centripetally in particle accelerators. (MLH)

Discusses the link between astronomical information and the ice ages. Explains the use of isotope measurement data from the sea-floor sediments, glacial ice, and water. (YP)

Demonstrates misconceptions of the meaning of temperature based on classical kinetic energy. Discusses some misconceptions about negative temperatures and the effect of compression. (YP)

Proposes a scenario to describe the formation of a planetary nebula, a cloud of gas surrounding a very hot compact star. Describes the nature of a planetary nebula, the number observed to date in the Milky Way Galaxy, and the results of research on a specific nebula. (MDH)

Uranium mining and milling in the Four Corners' area of the American Southwest has had serious negative impacts on American Indian workers, their families, and their communities. In this article, we will examine Navajo education programs which inform citizens about risks and health impacts associated with radiation exposures. Because the Navajo…

Demonstrating the steps of a signal transduction cascade usually involves radioactive materials and thus precludes its use in undergraduate teaching labs. Developing labs that allow the visual demonstration of these steps without the use of radioactivity is important for allowing students hands-on methods of illustrating each step of a signal…