Lighting standards in educational facilities -- long an issue of dispute between architects and lighting engineers -- is more than ever in the limelight because of the energy crisis. (Author)

Outdoor lighting is light pollution which handicaps certain astronomical programs. Protective measures must be adopted by the government to aid observational astronomy without sacrificing legitimate outdoor lighting needs. (PS)

Several recommendations for reducing window breakage and other acts of vandalism in schools. (RA)

Rockhounds and campers will love this transistorized battery-operated light. (Editor)

Provides an overview of camera options and selection criteria for desktop videoconferencing. Key factors in image quality are discussed, including lighting, resolution, and signal-to-noise ratio; and steps to improve image quality are suggested. (LRW)

Discusses the use of daylight to improve the interiors of educational facilities, offering an overview on the properties of natural light and ways and benefits of ensuring its presence indoors. (EV)

Infants between four and eight months of age were tested for their ability to reach for visible and unseen toys that made sounds. Infants reached for toys in the dark under two auditory illusion conditions, the Haas effect and the midline illusion. Results indicated that, by four months of age, infants perceived the Haas effect and the midline…

Explains lighting quality, techniques, and structural considerations that will properly support football field illumination needs. Luminary assembly, pole strength and burial requirements, and the electrical support system are discussed. Thoughts on manufacturer warranties conclude the article. (GR)

Discusses multipurpose athletic-field lighting specifications to enhance lighting quality and reduce costs. Topics discussed include lamp choice, lighting spillover and glare prevention, luminary assemblies and poles, and the electrical dimming and switching systems. (GR)

Discusses the lighting demands of today's advancements in educational technology and how wireless lighting controls are being designed to meet these demands. (GR)

Discusses the use of sophisticated lighting controls to help educational facilities provide adequate illumination and garner energy savings. (GR)

It is not surprising that major bookstores are always crowded. They offer big comfy chairs, warm lighting, and all kinds of coffees and treats. Staff tried to create a similar environment in the library at Cedar Valley Middle School, and even started selling mocha and hot chocolate. But the most significant part of the marketing campaign was to…

The relationship between luminance (i.e., the photometric intensity of light) and its perception (i.e., sensations of lightness or brightness) has long been a puzzle. In addition to the mystery of why these perceptual qualities do not scale with luminance in any simple way, "illusions" such as simultaneous brightness contrast, Mach bands,…

In Experiment 1, pigeons were trained at a 0-s baseline delay to discriminate sequences of light flashes (illumination of the feeder) that varied in number but not time (2f/4s and 8f/4s). During training, the intertrial interval was illuminated by the houselight for Group Light, but it was dark for Group Dark. Testing conducted with dark delay…