The highly inefficient incandescent light bulb is now a thing of the past, banned from European supermarket shelves in favour of more efficient lighting. The ban is part of the EU's strategy to reduce overall energy consumption ...
Energy & Green Tech
Sep 3, 2013
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(Phys.org)—Researchers at University of California, Santa Barbara, in collaboration with colleagues at the École Polytechnique in France, have conclusively identified Auger recombination as the mechanism that causes light ...
General Physics
Apr 23, 2013
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LED bulbs seem to be the future of home lighting: They save electricity, they're durable and they don't contain mercury like compact fluorescents. But having them produce white light like any old light bulb is like using ...
Consumer & Gadgets
Mar 13, 2013
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(Phys.org) —Scientists at the National Institute of Standards and Technology and the University of Maryland, College Park, have built a practical, high-efficiency nanostructured electron source. Described in the journal ...
Nanophysics
Mar 6, 2013
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(Phys.org)—Many consumers have started replacing traditional incandescent light bulbs with compact fluorescent light bulbs (CFLs) to reduce utility bills. CFLs are made of glass tubes filled with gas and a small amount ...
Other
Feb 28, 2013
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(Phys.org)—Taking a photo of the sun with a standard camera will provide a familiar image: a yellowish, featureless disk, perhaps colored a bit more red when near the horizon since the light must travel through more of ...
Space Exploration
Jan 23, 2013
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(Phys.org)—Entrepreneurs Christian Yan, Tom Rodinger and Gimmy Chu have formed a partnership and created a company they call NanoLight. Their products are LED light bulbs that the group claims are the world's most efficient. ...
When comparing LEDs to incandescent light bulbs, there is a noticeable difference in light quality: LED lamps when dimmed are perceived to be "colder" than incandescents. At CES 2013 this week, NXP Semiconductors is demonstrating ...
Engineering
Jan 10, 2013
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Recycling, reusing and reducing are all ways in which Europeans are assisting in efforts to reduce greenhouse gas (GHG) emissions. It is a far cry from the days when we threw everything away without thought. Now we know it ...
Energy & Green Tech
Jan 7, 2013
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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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