Examines the competing claims of safe" radiation levels from nuclear power plants and analyzes some of the arguments used by protagonists and antagonists. Claims that the real question, Why more power?", is becoming obscured. (AL)

Describes the circumstances of the total and partial solar eclipse of March 7, 1970 in certain American cities. Also discussed are (1) a classroom demonstration of the cause of solar eclipses, (2) techniques for safely observing the eclipse, and (3) what to observe during the eclipse. Bibliography. (LC)

The St. Charles, Illinois, Community School District 303 uses solar energy and has instituted an alternative energy demonstration center. (JM)

A facility completed in 1978 houses all of a central Kansas district's staff and students under one roof, blending conventional energy systems and utilities with solar energy. (Author/MLF)

Presents an eyewitness account in diary form recording day-by-day reactions to the nuclear crisis at Three Mile Island, Pennsylvania. (CK)

Presents a new derivation based on simple theorems of probability theory for the established system of equations describing successive decay transitions of quantum systems. It is indicated that this derivation that has a quantum-mechanical foundation might be more appealing to applied physicists than other derivations. (HM)

Advances new explanations for false observations made during 1903-1906 concerning a spurious radiation called N rays. (MLH)

This article discusses the public health dangers associated with radon exposure in homes and schools. In addition, testing and corrective efforts by federal and state agencies are discussed. A map indicating areas in the U.S. with potentially high radon levels is included. (IAH)

This review of the literature examines the effects of blue light (or near UV - ultraviolet), especially that given off by black-light tubes, often used with children with visual impairments. It finds a long-term danger of retinal and lens damage and offers six practical suggestions which emphasize using proper filters and limiting exposure to…

Indicates the difficulties of teaching concepts beyond light and color and creating memorable learning experiences. Recommends sequential activities using the mystery box approach to explain how scientists and doctors use photon applications. (YDS)

Identifies specific difficulties students had with ionizing radiation and radioactivity using interviews. Explores students' pre-instruction thoughts on these topics. (Author/MM)