Word: bulbed
(lookup in dictionary)
(lookup stats)
Dates: all
Sort By: most recent first
(reverse)
BACTERIAL Scientists have used sugar-eating microbes from the ocean to convert food into electricity. In theory, a cup of sugar could power a 60-watt bulb for 17 hours...
...Cumberland County Fair in New Jersey last week, a gray-haired fellow in a grouchy mood complained to his buddy, "We're walking in freakin' circles!" So true--bulb-blinking, sweet-and-sour circles of life...
...those of you still in the dark, CFL stands for Compact Fluorescent Light bulb. The CFL is an energy-efficient, long-lasting bulb. The average 25-watt bulb uses approximately a third of the energy of an equivalent incandescent bulb. And while the upfront cost of such a bulb can be as much as twice that of a comparable incandescent, the long-term savings are clear. By one calculation, a single CFL bought to replace a 75-watt incandescent bulb will save a consumer $76 to $83 over its 15,000 hour lifetime...
...despite the overwhelming evidence available in favor of the CFL over the incandescent bulb, resistance continues. The major hold-up is a collective action problem; people are asking: How is changing my light bulbs going to make a difference when there are so many bigger, more harmful systems harming the environment...
...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...