Presented is a Corridor Demonstration which can be set up in readily accessible areas such as hallways or lobbies. Equipment is listed for a display of three cells (solar cells, fuel cells, and storage cells) which develop electrical energy. (CS)

Reviews the development of accelerators over the past 50 years. Topics include: types of accelerators, including cyclotrons; sociology of accelerators (motivation, financing, construction, and use); impact of war; national laboratories; funding; applications; future projects; foreign projects; and international collaborations. (JN)

Reviews the history of vacuum technology. Includes vacuum pump developments (mechanical, ion, and cyrogenic pumps), measurement techniques, the development of the American Vacuum Society, and electronics in vacuum technology. (JN)

Describes the features and operation of an inexpensive digital pH meter. Includes a schematic diagram of the pH meter and a parts list with cost and source of each part. (SK)

Advanced undergraduate experiments utilizing a commercially available, thin spontaneous fission source are described, including studies of the energy and mass distribution of the fission fragments and their energy and angular correlation. The experiments provide a useful introduction to fission, nuclear mass equations, heavy-ion physics, and…

Instructions are provided for constructing a rotating table suitable for demonstrations and experiments in physics. Examples of results obtained when using the table are also provided. (SK)

Describes experiments in which inexpensive or standard laboratory equipment is used to measure several macroscopic magnetic properties of thin rare earth garnet films used in the manufacture of magnetic bubble devices. (Author/CS)

Reports results of a survey in which 110 universities were selected to respond to questions regarding approximate age and cost of the instruments used in three major areas: separations, spectroscopy, and electroanalysis. Respondents (N=41) also indicated which pieces of equipment were used in undergraduate courses or were used for research. (CS)

Suggests using plastic bags as aquaria and terraria. Describes techniques for converting plastic sheets into aquaria, how to set them up for classroom use, and other uses for plastic bag aquaria. (DS)

Describes various aspects of a newly-developed computer-assisted drafting/computer-assisted manufacture (CAD/CAM) facility in the chemical engineering technology department at Broome Community College, Binghamton, New York. Stresses the use of new instruments such as microcomputers and microprocessor-equipped instruments. (CS)

Describes the methods and materials needed to make stage and ocular micrometers. These can be used in secondary school and college level biology classrooms. (MA)

Provides instructions for setting up an indoor pond for the elementary school classroom. (CS)

Presents an overview of the construction techniques of dye lasers suitable for student projects and briefly describes possible laboratory projects. (JN)

Describes a compact solar camera built as a one-semester student project. This camera is used for taking pictures of the sun and moon and for direct observation of the image of the sun on a screen. (Author/HM)

Describes an experiment to measure the thermal conductivity of some gases in an undergraduate physics laboratory using a hot wire method in the pressure range ten to one torr. (HM)