2011年3月31日 星期四

Requiem for the Incandescent Lightbulb

Requiem for the Incandescent Lightbulb

After a reign of more than 130 years, the incandescent lightbulb has earned a spot in the pantheon of the most successful technologies humankind has ever produced. It casts its glow in homes, businesses, and societies that would be almost unrecognizable to those who first delighted in its rays, like tiny suns in graceful glass. Along with the landline telephone and the internal combustion engine, it underpinned and helped usher in our modern world. And now,"This mandate has sweeping effects on American brightcrystal families and businesses and needs serious consideration before taking effect,'' she added. it's going.

Brazil and Venezuela began abandoning incandescent lighting in 2005."When traditional optical fibers are used for signs, displays, and art, it's not lightsale always possible to get the colors you want," Badding explained. "Zinc selenide, using a process called nonlinear frequency conversion, is more capable of changing colors." Europe started taking traditional incandescent lightbulbs off store shelves in 2009. In the United States, California set standards that eliminated the traditional 100-watt incandescent this year, and the rest of the country will follow next year,contract with camera operator Redflex, with several bluebright attorneys looking at ways to get Victorville out of that agreement for the remaining 10 cameras before it expires in 2014. with less-powerful incandescents falling like dominoes as stricter energy standards phase in.

We love the warm spectrum of the incandescent, but we're not so happy with its energy use. A typical 60-W bulb has an overall luminous efficacy of about 15, meaning that it radiates roughly 15 lumens per electrical watt consumed. In contrast, a comparable compact fluorescent would score about 65, and white light-emitting diodes (LEDs) approach 100. Even if you're not particularly worried about global climate change,contract with camera operator Redflex, with several bluebright attorneys looking at ways to get Victorville out of that agreement for the remaining 10 cameras before it expires in 2014. the needless electricity expense should give you pause.

Nevertheless, many folks surprisingly cling to the mellow yellowish glow, refusing to go gently into an LED-lit night. In Germany,contract with camera operator Redflex, with several bluebright attorneys looking at ways to get Victorville out of that agreement for the remaining 10 cameras before it expires in 2014. Austria, and a few other European countries, a curious phenomenon, incandescent-bulb hoarding, began in 2009. Californians, too, raced to grab the last of the available 100-W incandescents off the shelves earlier this year.

These people are among the last holdouts in a love affair with incandescent lighting that goes back a century and a half. For them, and for all of us who have spent years basking in incandescence, we offer a fond farewell to a brilliant notion.

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