Discusses the basics of scientific glassblowing, including equipment needed, lighting a hand torch (which uses a gas and oxygen mixture), and cutting tubing. Also discusses preparation of butt joints, tee joints, and bends. Photographs illustrating various techniques are provided. (JN)

In addition to oceans, the earth is subjected to tidal stresses and undergoes tidal deformations. Discusses origin of tides, tidal stresses, and methods of determining tidal deformations (including gravity, tilt, and strain meters). (JN)

Describes contruction of an instrument which measures effects of reversible physiological changes on the motor coordination of laboratory animals. The "rotarod" is used to perform carefully planned, humane experiments which produce quantifiable results. A photograph and diagram of the apparatus are provided. (JN)

A chromatographic procedure for analyzing organophosphorus pesticides (such as PCB's, nitrosamines, and phthalate esters) in orange juice is described, including a summary of the method, instrumentation, methodology, results/discussion, and calculations. (JN)

Describes a science education class developed for elementary school children who are blind, deaf, or emotionally disturbed. Lessons are designed to work equally well for physically handicapped, emotionally disturbed, and nonhandicapped children. Concepts include modified classroom equipment, development of independence, and the role of the teacher…

Due to the expense of glass eye-piece grids and haemocytometers, suggests using a simple film grid (made from photographic film) in the same way as an eye-piece graticule is used. A diagram of the grid is provided as well as examples of its use. (JN)

Describes a low-cost instrument using a solar cell as a sensor to measure both instantaneous and integrated value of solar flux. Constructing and calibrating such an instrument constitutes an undergraduate experimental project, affording students an opportunity to examine a variety of aspects associated with solar energy measurements. (Author/SK)

Describes collection of quantitative samples of microorganisms and accumulation of physical data from a pond over a year. Provides examples of how final-year degree students have used materials and data for ecological projects (involving mainly algae), including their results/conclusions. Also describes apparatus and reagents used in the student…

Presents specific techniques for lectures and demonstrations in acoustics for deaf students. (SK)

Provides methods for making instruments and supplies accessible to the visually impaired student in the chemistry laboratory and classroom. (CS)

Presents a technique to produce samples for x-ray diffraction studies on the Tel-X-Ometer 80 x-ray apparatus from readily available crystalline powders and discusses observations of transverse modes of an optical resonator. (SK)

Describes and illustrates the following electric circuits suitable for student construction: basic circuit, dimmer, multivibrators, amplifiers, schmitt trigger, op-amplifier, radio reception, transmitter, sound effects generators, intercoms, and laboratory amplifier. (SK)

Discusses some of the common problems facing the librarian of geoscience publications, including standards, criteria for selecting materials, budgets, and availability of materials. (SA)

Presents 11 short descriptions on the applications of computers in chemistry classrooms and laboratories, including among others, using microcomputer graphics to teach quantum theory, a versatile and inexpensive instrument/computer interface, and a microcomputer-controlled scintillation spectrometer. (JN)

Describes an undergraduate physics experiment for studying Curie temperature and Curie constant of a ferromagnetic material. The exchange field (Weiss field) has been estimated by using these parameters. (HM)