Word: bulbed
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Dates: during 2000-2009
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...semiconductor that generates light, but very little heat, when an electric current is passed through it. Different semiconductor materials produce different colors; Nakamura used gallium nitride, which generates blue and white light. The resulting LEDs use as little as one-seventh the energy as an incandescent bulb and can last about 100 times as long, up to 100,000 hours. If they were widely used, LEDs could lead to enormous energy savings and carbon-emissions reductions. In the developing world, LEDs paired with solar panels could provide a cheap, sustainable light source that doesn't need a traditional power grid...
...hybrid vehicles and am as green as anyone, but I don't encourage rushing out to replace incandescent lightbulbs. A CFL may consume 75% less energy to generate the equivalent light, but my furnace has to make up for the heat no longer provided by the incandescent bulb. Since there are also disposal issues (CFLs contain mercury), I suggest that CFLs be used only in the refrigerator. Richard Wilhelm, Port Angeles, Washington...
...hybrid vehicles and am as green as anyone, but I don't encourage rushing out to replace incandescent lightbulbs. A cfl may consume 75% less energy to generate the equivalent light, but my furnace has to make up for the heat no longer provided by the incandescent bulb. Since there are also disposal issues (cfls contain mercury), I suggest that cfls be used only in the refrigerator. Richard Wilhelm, PORT ANGELES, WASHINGTON...
...hybrid vehicles and am as green as anyone, but I don't encourage rushing out to replace incandescent lightbulbs. A CFL may consume 75% less energy to generate the equivalent light, but my furnace has to make up for the heat no longer provided by the incandescent bulb. Since there are also disposal issues (CFLs contain mercury), I suggest that CFLs be used only in the refrigerator...
...figurative light bulb popped above the head of Adams House REP Prabhas Pokharel ’09, whose artistic vision was “inspired by the situation.” REP’s proposal plans to turn the exchanged incandescent bulbs into a human-sized sculptural interpretation of a CFL. For those of you who haven’t exchanged your bulbs yet, think of a gigantic spiral...