Describes new apparatus and equipment including balances, spectrophotometers, gas chromatographs, pH meters, calculators and temperature controllers. (GS)

Describes a simple tensiometer which provides good approximations to Young's Modulus and acceptable tensile test curves. (Author/GS)

Describes a method of time-of-flight determination utilizing a sound-actuated switch, an electronic flash, and a loaded camera. (GS)

Describes a calibration technique for a small motor which, when driven as a generator, can be used for a speedometer. The generator output can be fed to an oscilloscope to provide a sweep in which the vertical axis is velocity and the horizontal axis, time. (GS)

Explains a method of exploiting recent interest in automobile safety to demonstrate, qualitatively, concepts of momentum and energy. (GS)

Describes a series of experiments which provide excellent evidence for different degrees of dissociation of a series of complexes and precipitate. The series is based on the copper ion as the acid and sample data are provided. (GS)

Describes the rationale and incentive for the development of investigative laboratories at the University of Nebraska. Details the training and continuing support system that allows the utilization of a largely undergraduate student teaching staff. Outlines problems created by the nature of the students enrolled in the course. (GS)

Activities involving graphing are described. Beginning with arranging objects in linear arrays, the authors outline a sequence of activities leading up to graphing of grouped data, and circular graphs. (SD)

Summarizes physics laboratory experiments with applications in the biological sciences. Includes the following topics: mechanics of the human arm, fluid flow in tubes, physics of learning, the electrocardiograph, nerve impulse conduction, and corrective lenses for eye defects. (Author/MLH)

Describes a procedure for establishing a viscosity trend through a homologous series and presents sample data. (GS)

Describes various methods of rendering visible the paths followed by a laser beam for direct viewing or for photographic purposes. (Author/GS)