Describes an empirical method for tuning a piano by matching measured fundamental frequencies to values determined using a pocket calculator. (Author/GA)

Describes the design of a sequential switcher to be used for multichannel strip-chart recordings of temperatures at different points in a solar heated building. (GA)

Describes: (1) the light beam galvanometer; (2) the electrometer/direct current amplifier; and (3) digital multimeters. Focuses on the uses or potential uses of these instruments in teaching A-level physics. (JN)

Gives brief descriptions of new physics laboratory equipment and available literature describing laboratory equipment. (MLH)

Discusses how sophisticated instrumentation techniques yield practical results in three typical materials problems: fracture analysis, joining, and compatibility. Describes techniques such as scanning and transmission electron microscopy, and Auger spectroscopy. (MLH)

Discusses instrumentation and describes such research areas as the albedos of the brighter planets, rotation rates and atmospheres of the larger and brighter satellites, brightness changes of outer planets, asteroid rotation rates, and variable stars. (GS)

The system for determining parameters of a particle described in this document is a government-owned invention that is available for licensing. The background of the invention is outlined, and drawings of the system together with a detailed description of its function are provided. A collector contains a hole and annular apertures for transmitting…

Describes and evaluates a line of modular electronic instruments that are designed for use in physics instruction, including a power supply, function generator, and counter/timer. (MLH)