Discusses consumer and industrial videodisc systems for information storage including cost, technology utilized, formats, and features. Reflective and transmissive laser optical systems are described, as well as the grooved and grooveless mechanical systems. Tables containing product data are included. (JJD)

Offers information, objectives, possible student outcomes, a student quiz on electronic imaging technologies. Discusses the evolution of the process from the development of the camera in the 1550s to virtual reality, infrared imaging, and laserdisks. (JOW)

Describes a simple way for groups to view a demonstration of Brownian Motion using a laser and liquid suspension. (AIM)

A three-dimensional laser scanner can be used as a tool for design and problem solving in technology education. A hands-on experience can enhance learning by captivating students' interest and empowering them with creative tools. (Author/JOW)

Diffraction gratings are often used in the laboratory to determine the wavelength of laser light. What happens to the spots on the screen if the grating is rotated in this set-up? The answer is nontrivial and instructive.

Matrix-assisted laser desorption ionization time-of-flight mass spectrometry (MALDI-TOF MS or simply MALDI) has become ubiquitous in the identification and analysis of biomacromolecules. As a technique that allows for the molecular weight determination of otherwise nonvolatile molecules, MALDI has had a profound impact in the molecular…

Outlines the prospects of generating coherent x rays using high-power lasers and indentifies problem areas in their development. Indicates possible applications for coherent x rays in the fields of chemistry, biology, and crystallography. (GS)

Summarizes the current status of laser printers in terms of cost, hardware and software requirements, measurement and operational considerations, ease of use, and maintenance. The cost effectiveness of laser printing in libraries for applications such as spine labels, purchase orders, and reports, is explored. (9 notes with references) (CLB)

Explains the three characteristics of laser light (monochromatic light, divergence, and coherence), the components of a laser, applications of the laser (alignment, distance measurement, welding/cutting, marking, medical applications), and a complete laser training system appropriate for classroom use. (CT)

Presents a participation activity for students of all ages that stimulates the processes that occur in the build-up of a laser pulse. Exposes students to the concepts of coherence, monochromaticity, stimulated emission, pulse build-up from background fluctuations, and the properties that dictate the shape of a typical laser pulse. (JRH)

Looks at how a new laser machining center is being used for technology education at Ball State University. The ideas are also applicable for high school technology education. (JOW)