Desmonstrates the recommended reflectances in the classroom and suggestions are made for lighting maintenance and designing a new lighting system. Illustrated. (Author)

This article describes a thought-provoking lesson that compares various arrangements of lamp-battery circuits to help students develop the motivation and competence to participate in scientific discourse for knowledge construction. Through experimentation and discourse, students explore concepts about voltage, current, resistance, and Ohm's law.…

Colour science is based on the sensation of monochromatic light. In contrast to that, surface colours are caused by reflection of wide sections of the daylight spectrum. Non-spectral colours like magenta and purple appear homologous to colours with spectral hue, if the approach of mixing monochromatic light is abandoned. It is shown that a large…

Twin-beam luminaires that control veiling reflections provide better visibility at a wattage reduction of about two-thirds over the previous lighting in the Charles Brewer Middle School in Clark, New Jersey. (Author/MLF)

A new lighting system saves electricity and the lighting level is five times better than previously, at Citrus College in Los Angeles County, California. (Author/MLF)

This publication offers design, specification, and installation guidance for lighting control appropriate for K-12 educational facilities. It features applications that illustrate the best control practices for a variety of spaces, facilitating lighting control design and application. Each best practice meets the provisions of relevant energy…

Creative, constructive night lighting can, in addition to deterring vandalism, beautify parking lots, recreation fields, entrances, grassy areas, walkways, and driveways of schools; and provide safety for those using the facilities after dark. (Author)

A consulting engineer's lighting designer, brought into a project at its conceptual stage, could influence the architectural design in such a way so as to incorporate a lighting system that is both aesthetically pleasing and economical. To do this, he must speak the architect's language. (Author)

Describes trends in indoor sports lighting, including new technology that is coupling familiar looks with new energy and cost efficiencies. Offers examples of their use at various schools. (EV)

Examines the use of lighting, both artificial and natural, that can enhance the aesthetic quality and functionality of areas with indoor swimming pools. Discusses glare and shadow-reduction measures that aid competitive events, including lighting above and below water levels, and highlights lighting issues during televised events. Descriptions of…

Discusses the importance of proper lighting in spaces dedicated to reading and computer use, such as libraries. Topics include glare and reflection; contrast; shadows; damage to paper and bindings from light; aesthetic issues; different categories of lighting; types of fixtures; and achieving a balance by varying lighting and fixtures. (LRW)

"Don't put metal objects in the microwave" is common safety advice. But why? Here we describe demonstration experiments involving placing household metallic objects in a microwave oven. These allow a better understanding of the interaction of microwaves with materials. Light bulbs and discharge lamps can also be used in instructive demonstrations.

Two schools are featured that have lighting systems that give flexible illumination and conserve energy as well. (Author/MLF)

Attempts to resolve the two factors instrumental in ineffectively lighted new classrooms: planning without taking newer design techniques into consideration and confusion regarding the lighting objectives in the classroom. (Author/EA)