Old-style 100-watt light bulbs will be banned in Europe's shops from next week in favour of new energy-saving models, but consumers groups on Wednesday gave the move a guarded welcome.
Energy & Green Tech
Aug 26, 2009
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When it comes to the new lighting law, a lot of people seem to be in the dark.
Energy & Green Tech
Apr 7, 2011
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Tungsten is particularly suitable as material for highly stressed parts of the vessel enclosing a hot fusion plasma, it being the metal with the highest melting point. A disadvantage, however, is its brittleness, which under ...
Condensed Matter
May 28, 2013
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Scientists study the movement of charge carriers to design an organic LED that is energy efficient and still casts a warm, natural glow.
General Physics
Feb 1, 2012
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Silicon Valley is known for computer chips, software companies and social networks - but not light bulbs.
Energy & Green Tech
Oct 3, 2011
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The most common kind of light bulb in the United States—the incandescent—is only about 5 percent efficient. The phosphorescent organic light-emitting diode, on the other hand, makes light out of 100 percent of the electricity ...
Energy & Green Tech
Jun 20, 2014
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Today's light-emitting diode light bulbs have a slight environmental edge over compact fluorescent lamps. And that gap is expected to grow significantly as technology and manufacturing methods improve in the next five years, ...
Energy & Green Tech
Sep 5, 2012
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As the common household incandescent bulb marches towards extinction (they'll be completely phased out in the U.S. by 2014), the "battle of the bulb" heats up with CFLs, LEDs, and a new long-lasting contender, the ESL bulb, ...
Energy & Green Tech
Dec 20, 2010
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Global demand for the increasingly important "rare earth" minerals that power a range of digital products could outstrip supply by next year as dominant producer China slashes exports, analysts warn.
Business
Nov 17, 2010
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(PhysOrg.com) -- Computers, light bulbs, and even people generate heat—energy that ends up being wasted. With a thermoelectric device, which converts heat to electricity and vice versa, you can harness that otherwise wasted ...
Nanomaterials
Sep 23, 2010
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