LED lamps and lightbulbs are solid-state devices that use light-emitting diodes as the source of light. LED lighting offers longer service life and high energy efficiency than incandescent or fluorescent bulbs, but as an emerging consumer technology, remains more expensive than both.
Now the Igor I. Sikorsky prize is worth $250,000. Check out three designs that are getting close.
2 | May 13, 2013 12:09pm |
Four Harvard University women created a soccer ball that generates electricity for use in off-grid areas of the world. It is having a powerful impact.
11 | May 6, 2013 3:00am |
A team of scientists has outlined a new LED street lamp design that could help reclaim the luminosity of the heavens.
10 | April 25, 2013 6:55pm |
LEDs are almost certainly the future of lighting. Among their advertised advantages: They slash electricity consumption. Do they?
60 | November 29, 2012 5:00am |
BARCELONA -- Part 1 in a two-part series: France and Spain are set to lead the world's biggest, 18-billion-euro physics experiment. What could go wrong?
13 | March 28, 2013 1:44am |
Now you can set your home light bulbs to flash or change color when your sports team scores. Tunable to any alert - stock prices, weather forecast, traffic reports, social media - through the Net.
5 | May 14, 2013 3:43am |
The South African native is challenging the legacy rules of U.S. power generation and financing, seeking to make clean energy as cost-effective as electricity generated by fossil fuels.
6 | May 7, 2013 3:00am |
Can LED technology replace voice communication underwater?
3 | April 23, 2013 12:36am |
As Philips unveils its brightest LED bulb ever - equivalent to a 75-watt incandescent - we illuminate how long these things will really last.
26 | May 16, 2011 12:03pm |
A panel of experts assembled in Amsterdam shine light on the strengths and weaknesses of LEDs.
52 | May 12, 2011 2:33pm |
An analysis of the materials, labor and parts showed that turning an LED into a light bulb requires the integration of some pretty sophisticated technologies.
20 | October 7, 2011 6:00am |
Don't go out at night?
2 | May 9, 2013 3:54am |
A Cambridge University brain scanning project aims to unlock the mysteries of the creature from the room upstairs, in a first ever study of its kind.
1 | May 15, 2013 3:54am |
To paraphrase them: "Fire up the fission. These imported fossil fuels are breaking us."
May 15, 2013 5:28am |
Just when LED bulbs were catching on, along comes a technology that could trump them: Plastic. Will you flip for "Fipels"?
14 | December 3, 2012 3:43am |
International lighting designers gathered in trendy Milan, where they were incandescent over the banning of traditional bulbs
21 | May 2, 2011 9:54am |
We always hear about island nations suffering from sea level rise. But the risks are real in the United States as well. A new project maps those risks.
4 | March 15, 2012 7:56am |
Thanks to a new study, choosing an LED reflector bulb for a home, commercial or industrial business just got a little easier.
February 13, 2012 12:40pm |
Company claims to cut electricity use in half for already highly efficient bulbs. Could LEDs finally crack the vast commercial office market?
8 | April 11, 2013 3:39am |
At only 12 watts, the "Nanolight" provides the brightness of a 100-watt incandescent light bulb and can last decades.
9 | January 17, 2013 4:28am |