A Light Bulb Goes On
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Willett Kempton sees your car--and the electric grid--as a solution to America's energy problem, not the source of it.
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Farewell, my lovely old flashlight? Incandescent bulbs are being supplanted by a new generation of light-emitting diodes.
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Photodiode made from peptide molecules sends current in directions determined by light color.
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Shining a light on the solar industry.
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Even switching the light on for the toilet, staying up late, travelling across time zones, or the light from street lamps can stop enough melatonin being made, they say.
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Tom Shannon's massive spherical blimp design boasts 7 million LEDs. Now the challenge is to get it built. In Gadget Lab.
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There's money on the table if you take some energy-saving steps.
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In life, there are certain things that are beyond indispensable. Like brake lights, hot showers, birthday candles and second chances.
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X10's ActiveHome Pro modules let you turn your ordinary household lamps and appliances into smart devices that go on and off according to your habits. Product review by Amit Asaravala.
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Scientists from across the globe gather to learn more about the ways in which light can be used in medicine.
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In some ways, they are still fumbling  about in the dark, except now at least there's a flashlight on  hand.
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Joey Nicotera's fascination with multicolored light bulbs bordered on obsession when he was a teenager. He framed posters in lights and decorated his own Christmas tree. When he couldn't find a color bulb he wanted, he got paint cans from the basement and made some himself, bathing his second-story bedroom in an eerie glow.
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The suspect maths of energy-saving street lighting Westminster City Council is doing its bit to save the planet by installing energy-saving street lamps in every thoroughfare in the borough, the BBC reports.â¦
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SCIENTISTS have sounded the death knell for the plug and power lead. In a breakthrough that sounds like something out of Star Trek, they have discovered a way of 'beaming' power across a room into a light bulb, mobile phone orlaptop computer without wires or cables.
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Blog: Researchers create lighting foil to save energy, space.
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Switching on lightbulbs from a distance Researchers in the US have demonstrated an experimental wireless energy transfer system that could pave the way for truly wireless computing. The team has already successfully made a 60W light bulb light up from a distance of 2 metres.â¦
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A funny thing happened on the way  to the consumer electronics store.