The future of solar heated homes looks bright. The increase in availability of solar hardware and information along with tax credits point to an increase in both solar water and space heating. Solar systems can add to the value of a house. (BB)

Describes an experiment studying the decay of moth balls to demonstrate diffusion phenomena. (SL)

Discusses the problem of determining the number of radioactive particles entering a detector window from a parallel and coaxial disk source. (SL)

The new North Campus of the Community College of Denver is heated by solar energy. This article describes the system and its costs. (DC)

Provides instructions for making tin can radiation detectors from empty aluminum cans, aluminum foil, clear plastic, copper wire, silica gel, and fine, unwaxed dental floss put together with tape or glue. Also provides suggestions for activities using the detectors. (JN)

Discusses the theory of radiometric force and the historical development of the radiometer. (MLH)

Discusses three theories used to explain the interaction of electromagnetic radiation with matter: the multiphoton theory, the cascade theory, and the effective photon theory. (MLH)

The proposed Niskey Lake Middle School is designed to have solar heating in half of the building, solar water heating for the entire facility, and solar cooling for the administration area. (Author/MLF)

Discusses textbook errors and alternative explanations concerning Planck's derivation of the distribution function for the energy density of black-body radiation. (MLH)

Includes five brief articles on: solar-heating demonstration equipment, mercury or sodium vapor lamp spectroscopy, an apparatus for simulating variable stars, a voltage-to-frequency converter, and an introductory absorption experiment for low-energy beta particles. (MLH)

Describes new applications being found for solar energy as a result of technical advances and a variety of economic and social forces. Discusses the basic requirements for a solar climate control system and outlines factors that should stimulate greater use of solar energy in the near future. (JR)

Discusses the effects of radioactive wastes on marine communities, with particular reference to the fitness of populations and the need for field and laboratory studies to provide evidence of ecological change. (JR)

Examines the various energy sources likely to be developed in the near future, and suggests that the only satisfactory solution lies in the development of solar energy and an associated non-polluting "hydrogen economy." Concludes that Australia has ideal conditions and the technical expertise to lead in solar energy research. (JR)

Analyzes the dangers of lasers in a classroom situation to formulate safety standards which are contrasted with federal regulations. Suggests that every laser user should check with the safety precautions to reduce the probability of producing a burn per student contact to extremely low levels. (CC)