To continue reading this content, please enable JavaScript in your browser settings and refresh this page. Think back to mixing primary-color paint in grade school ...
Manufacturers originally designed double-ended high-pressure sodium light bulbs so they would be compatible with double-ended metal halide fixtures. Traditional single-ended high-pressure sodium bulbs ...
Here’s a photo of a building’s night lighting after some retrofitting with LEDS. The Fire and Emergency Services building for the US Army’s Camp Humphreys (Pyeongtaek, Korea) replaced some of its ...
For almost two generations of Chicagoans, orange has been the color of night. High pressure sodium vapor lights, which create a glow reminiscent of a tire fire, have lit Chicago since the 1970s. They ...
Most talk glowingly about their neighborhoods’ new nighttime look. But some residents are taking a dim view of bright new streetlights that are popping up across Los Angeles. Energy-saving ...
QUEBEC – In Canada, where outdoor growing seasons are limited, sales from greenhouse fruit and vegetable production operations still surpass $1.1 billion annually. Finding more efficient methods for ...
BUFFALO, N.Y. — Travel deep enough below Earth’s surface or inside the center of the Sun, and matter changes on an atomic level. The mounting pressure within stars and planets can cause metals to ...
Think back to mixing primary-color paint in grade school. Remember how mixing in yellow changes white, blue and red? Lighting is no exception. A problem too often overlooked is how the yellow-tinted ...
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