Describes an apparatus designed for quantitative demonstrations of collision experiments. The apparatus consists of a transparent air table and a launching device for projecting two objects simultaneously. It may be used with an overhead projector. The apparatus won third prize in Demonstration Lecture Apparatus in the A.A.P.T. Apparatus…

Although a complete oxygen meter is an expensive piece of equipment, homemade circuitry can be a suitable substitute if science teachers are aware of the limitations of the apparatus as well as of certain techniques for effective use. (PB)

This collection of notes describes (1) an optoelectronic apparatus for classroom demonstrations of mechanical laws, (2) a more efficient method for demonstrated nuclear chain reactions using electrically energized "traps" and ping-pong balls, and (3) an inexpensive demonstration for qualitative analysis of temperature-dependent resistance. (CS)

Describes a simple hydraulic simulator based on more complex models long used by engineers to develop approximate solutions. It allows students to visualize non-steady transfer, to apply a model to solve a problem, and to compare experimentally simulated information with calculated values. (Author/MA)

Describes an advanced high school physics experiment demonstrating rotational kinematics and dynamics, using simple equipment such as empty coffee cans, inclined planes, meter sticks, and a large 10-second demonstration timer. (CS)

Describes a system that monitors intestinal motility in vivo which is very sensitive, minimally injurious to the tissue, and inexpensive. Used are two balloons, one of which is inserted into the intestinal lumen and the other suspended from a force transducer. (CS)

Provides a checklist for microprocessor laboratories and outlines the programs offered at Milwaukee School of Engineering, where students are introduced to two microprocessor elective courses. (CS)

Reports results of a study for NSF on the scientific instrumentation needs of research universities. Examines current status of scientific instruments in 16 major research universities, six government laboratories, and nine commercial laboratories; and identifies factors that facilitate or impede their acquisition, use, and development. (CS)

Describes three videocassette formats comparing their technical characteristics to determine which is most suited for a given application. Discusses duplication problems and international exchange of tapes, advising about world standards and conversion from one to the other. Gives guidelines to selecting the proper hardware for different video…

A new, small magnetic susceptibility system is described which can be constructed from commercially available components for less than one hundred dollars for use with a standard laboratory balance. (BB)

Describes an experimental technique for determining liquid dielectric constants by measuring the rise of the liquid in a paralled-plate capacitor at a known voltage. (MLH)

Describes various ways to arrange equipment and utilities in chemical laboratories for both research and teaching purposes. (MLH)

This article summarizes conditions and changes in language laboratories. Types of laboratories and equipment are listed; laboratory personnel include technicians, librarians and student assistants. Most maintenance was done by institution personnel; student use is outlined. Professional attitudes and equipment statistics are surveyed. (CHK)

Evaluates Thornton's modular electronics system for use in the general physics laboratory. Includes the Thornton pre-set counter-adapter, decade counter, and amplifier-power supply. (MLH)