Describes the application of basic dynamics of rotations to the case of turning on skis, first without and then with external torques. Various elements are combined in different techniques and suggestions for further extensions and a list of laboratory exercises based on skiing are included. (DF)

Describes equipment used for a magnetic force experiment that is capable of producing precise results but rugged enough to withstand handling by several hundred undergraduate students per year. (WRM)

Describes the operation and educational benefits of the use of a closed circuit television system in the demonstration of a hologram. (CP)

Describes experiments with electrostatics that are convenient for classroom demonstrations or laboratory activities. These experiments use a Kelvin balance and a relatively inexpensive electronic scale with 0.01-g sensitivity and essentially stationary pans. (WRM)

Presents guidelines for equipping physics labs with components from each of four technology-use categories: (1) computer interfacing; (2) modeling; (3) simulations; and (4) research-reference-presentation. Includes references to useful websites discussing educational technology. (WRM)

Discusses an experiment on friction to illustrate the "law" governing the relationship of the friction force to the volocity of air track cars. (CC)

Describes an electronic digital counter, a speed-of-light experiment using a television, a simple out-of-circuit method for determining if a transistor is made of silicon or germanium, and the use of dry cells to power TTL integrated circuits. (MLH)