After introducing computer terminology, the author states the purpose of a 3-week intensive summer course to afford practicing scientists familiarity with digital computers in chemical instrumentation. Describes equipment and personnel required. The course consists of fourteen formal lectures and fourteen laboratory assignments in digital logic,…

A controversy has arisen as to whether instrument vendors are providing sufficient information about instrument-associated software to permit users to understand invisible data transformations going on inside of the equipment. Topics addressed include software protection, user modifications, and publishing software. (Author/JN)

One undergraduate chemistry laboratory at the California Institute of Technology is described, including goals of the laboratory curriculum: (1) emphasis on modern instrumental methods of analysis, separation, and characterization; (2) integration of organic/inorganic experiments; and (3) preparing students in two years to begin work in a research…

A technician auto analyzer (consisting of six modules: sampler, multichannel peristaltic pump, dialyser, heating/incubation bath, colorimeter, and recorder) was modified by using key modules and substituting standard equipment for others; spectronic 20 with homemade flow cell for colorimeter module. Descriptions and diagrams of the apparatus are…

An electrical load limiter system has reduced the electricity bills by 18 percent at a Pennsylvania junior high school. (MLF)

Examines Telidon (a system of electronic components programed to receive, and translate into video form, electronic pulses representing pages of text and graphics stored in a central computer) and its potential impact on education. Discusses benefits: limitless information through direct computer access; individual and interactive instruction…

To aid in the identification and treatment of hyperkinesis, parent and teacher rating scales were developed. Analysis of parent ratings indicated three factors: excitability; motor coordination; and directed attention. Analysis of the teacher form yielded similar factors. Analysis of variance of each factor score revealed significant differences…

Discusses the existence of matter in smaller groups known as clusters. Applications of the findings in scientific studies are presented as they relate to technology. (SA)

Thermoluminescence and its application to archeological dating are considered in this article. Descriptions are given of the method, the required doses, absolute and relative dating, complications, and the relation of this type of dating to other methods. (SA)

Describes a low-cost four-color LED photometer developed to overcome the rising cost of laboratory equipment used in general chemistry labs and introduce instrumentation at the undergraduate level. The photometer detects absorbance at selected wavelengths of visible light but retains the advantages of a dual-beam system. The unit is compact and…

Studies intonation trends of wind instrumentalists with regard to harmonic intervals, including factors such as tuning system, location, interval type, direction of deviation from equal temperament, and group. Compares the performance of two groups, professionals and advanced students. Reports findings and discusses similarities to and differences…