World’s largest offshore wind farm spins into action off the coast of Britain

They stretch up to two and a half times the height of Nelson’s Column at Trafalgar Square, their number is close to a hundred, and their mission is to bring clean, renewable energy into British homes. Yes, we’re talking about turbines. The latest wind farm to be erected near the Queen’s most sovereign isles is said to be the largest in the world (for now) and promises to produce enough energy to keep 240,000 homes going — the equivalent of half the county of Kent. It’s part of the UK’s grand plan to generate at least 20 percent of all its power needs through the taming of the winds and cost the Kingdom a cool £780 million ($1.2b) to build. That’s admittedly a big bill to swallow, but there are worse things to blow your billions on… such as, say, the Millennium Dome.

Continue reading World’s largest offshore wind farm spins into action off the coast of Britain

World’s largest offshore wind farm spins into action off the coast of Britain originally appeared on Engadget on Thu, 23 Sep 2010 03:03:00 EDT. Please see our terms for use of feeds.

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UTexas researchers develop organic battery, aim for week-long use in smartphones

Christopher Bielawski, a brilliant mind working at the University of Texas at Austin, had this to say about his newest discovery: “I would love it if my iPhone was thinner and lighter, and the battery lasted a month or even a week instead of a day; with an organic battery, it may be possible.” Anyone that has ever owned an iPhone (or a smartphone or any sort, really) can grok just how bold those words are, but according to Mr. Bielawski, “we’re now starting to get a handle on the fundamental chemistry needed to make this dream a commercial reality.” At the center of this potential revolution is a newfangled organic battery recently detailed in the journal Science, but just as important is the artificial photosynthesis that the research also touches on. Bielawski and colleague Jonathan Sessler have seemingly figured out how to create an electron transfer process that can proceed in the opposite direction, with this forward and backward switching of electron flow opening up new avenues for the historically stagnant battery innovation market. Granted, these guys have yet to demonstrate that the process can occur in a condensed phase, so actual commercialization is probably a century millennium or two out, but hey — at least our list of “awesome thing that’ll probably never happen” has grown by one.

UTexas researchers develop organic battery, aim for week-long use in smartphones originally appeared on Engadget on Wed, 22 Sep 2010 17:11:00 EDT. Please see our terms for use of feeds.

Permalink Gizmag  |  sourceUniversity of Texas at Austin  | Email this | Comments

Watch This 1.25 Kilojoule DIY Coilgun Smash Various Household Items [Video]

“Danger! High Voltage. Do Not Touch. Death or Serious Injury May Occur,” reads the yellow sticker on the side of this 1.25 Kilojoule DIY coilgun. Watching this video of it in action, that sounds about right: More »

UK research team brings quantum computing closer than ever… or so they say

You know the drill — some quirky research team whips up some phenomenal discovery in the middle of nowhere, gloats about it, gets it published in a journal you’ve never heard of it, and then it all vanishes into the ether, leaving your soul hurt and wondering why you ever got your hopes up in the first place. The Foundations wrote a little tune about this very situation back in 1968, but a UK team from the Center for Quantum Photonics led by Jeremy O’Brien are claiming that their latest discovery is no joke. According to him, most people have believed that a functional quantum computer wouldn’t be a reality for at least another score, but he’s saying “with real confidence that, using [his] new technique, a quantum computer could, within five years, be performing calculations that are outside the capabilities of conventional computers.” The center of this bold claim is a new photonic chip that works on light rather than traditional electricity, and those who built it say that it could “pull important information out of the biggest databases almost instantaneously.” Of course, this stuff would hit the Department of Defense long before it hits your basement, but it’s on you to keep tabs on the progress. Wouldn’t be let down again, now would we?

UK research team brings quantum computing closer than ever… or so they say originally appeared on Engadget on Sun, 19 Sep 2010 09:18:00 EDT. Please see our terms for use of feeds.

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Scientists using metallic wastes to generate clean energy

Solar farms are swell and all, but they aren’t exactly fit for laboratories or studio apartments. Thanks to new discoveries by gurus at the University of Birmingham, though, we could be on our way to a far more diminutive method of creating clean energy. As the story goes, we could soon be using microbes to transform wastes in metals into energy. The team managed to pinpoint Hydrogenase enzymes and BioPd in their research, which they believe can be used as catalysts for the treatment of persistent pollutants. The overriding goal, however, is to “develop a one-step technology that allows for the conversion of metallic wastes into high value catalysts for green chemistry and clean energy generation,” but it’s difficult to say at this point how close they are to realizing it. The best news? This is bound to start a new rash of Cash 4 Gold commercials.

Scientists using metallic wastes to generate clean energy originally appeared on Engadget on Mon, 06 Sep 2010 09:27:00 EDT. Please see our terms for use of feeds.

Permalink Physorg  |  sourceSGM Journals  | Email this | Comments

Airborne electricity is ripe for the picking, claim researchers

Electricity might not grow on trees, but it is freely available in the air — provided you know how to catch it. Such is the contention presented by Dr. Francesco Galembeck of Brazil’s University of Campinas at the 240th annual American Chemical Society shindig. He and his crew have shown how tiny particles of silica and aluminum phosphate become electrically charged when water vapor is passed over them. This aims to prove two things: firstly, that airborne water droplets do carry an electric charge, and secondly, that metals can be used to collect that charge. Detractors have pointed out that Dr. Galembeck’s team may be generating the droplets’ electrical charge by the act of pumping the air over the metals — which might imply you couldn’t practice this technique with still, humid air — while there’s also the rather large caveat that the little electricity they were able to collect from vapor was a hundred million times less than what you could obtain from a solar cell of equivalent size. Still, it’s another new door unto a potential alternative energy source and we don’t ever like having to close those.

Continue reading Airborne electricity is ripe for the picking, claim researchers

Airborne electricity is ripe for the picking, claim researchers originally appeared on Engadget on Fri, 27 Aug 2010 06:27:00 EDT. Please see our terms for use of feeds.

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Lung-inspired hydrogen fuel cell skimps on platinum, sees efficiency boost

For as spectacular as hydrogen fuel cells are on paper, they haven’t been able to replace combustion engines in vehicles. Or much of anything else, really. But thanks to Signe Kjelstrup at the Norwegian Academy of Science and Letters in Oslo, the tried-and-true fuel cell is getting a serious boost. Kjelstrup’s crew determined that by using less platinum in a cell, a substantial increase in efficiency and a significant decrease in cost could be achieved. The new design relies on an architecture that’s “modeled on the bronchial structure of the lungs to supply hydrogen and oxygen gas to their respective electrodes,” which is said to help “spread the gases more uniformly across the catalyst than current channel designs and provides a greater surface area so less platinum is needed.” It’s still early on in the discovery process, though, and there’s certainly no solid word on when this will reach a point where widespread implementation is feasible. Seventh-generation Prius, perhaps?

Lung-inspired hydrogen fuel cell skimps on platinum, sees efficiency boost originally appeared on Engadget on Tue, 24 Aug 2010 09:38:00 EDT. Please see our terms for use of feeds.

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Kensington Offers Two New Smart Power Laptop Adapters

Kensington Smart Power Adapter.jpg
If you have a laptop, you probably need (or just want) a second power adapter so that you don’t have to carry it around all the time. Kensington has just announced two new power adapters that will be available soon.
The Kensington Wall Laptop Power Adapter ($69.99) provides 90 watts of power, but is still rather small, measuring 5.18-inches long, 2.04-inches wide, and just 1.12-inches tall. Weighing in at 11.3-ounces, this adapter is also energy efficient, with an Energy Star rating that lets you know it uses 30 percent less energy than traditional laptop power adapters. It’s compatible with laptops from all of major manufacturers, including Acer, Asus, Dell, HP, IBM, Lenovo, Sony, and Toshiba.
If you use multiple mobile devices on the go, or can’t spare one of the USB ports on your laptop to charge your mobile phone or iPod, you can choose the second model, which also includes a USB power port. It comes with a $10 premium on the price for the base model, but you never know when you’re going to need an extra USB charging port.
Both of the new power adapters are now available for pre-order from Kensington and from Amazon.com. Each one carries a two year limited warranty, and will start shipping out during the first week of September.

Inhabitat’s Week in Green: lenses that magnify wind, spider silk bacteria, and the largest solar sports facility

Each week our friends at Inhabitat recap the week’s most interesting green developments and clean tech news for us — it’s the Week in Green.

This week Inhabitat showcased the best and brightest new developments from the world of clean tech. Stanford opened up new horizons for renewable energy as they unveiled a solar technology that can harvest electricity from both heat and light — a significant improvement over photovoltaics, whose efficiency wilts in the sun. We also looked at Pocono Raceway, the recently-crowned world’s largest solar-powered sports facility, and an innovative new type of “Wind Lens” turbine that could increase energy generation by a magnitude of three times.

We also saw green tech take to the skies as Boeing unveiled a super-efficient airplane that could cut fuel consumption by 70% and scientists floated a plan to create gigantic orbiting balloons that could solve our space junk problem. It was a big week for alternative autos as well — Paris announced that it will be launching its Autolib electric car sharing program next year, and a poo-powered VW Bug burned… rubber on the streets of Bristol.

In other news, we showcased an ultra-efficient Danish home that produces more energy than it needs. Future-forward biotech couture was a hot topic as well as scientists found a way to produce spider silk from metabolically engineered bacteria. And we couldn’t help but want to share these adorable and amazingly detailed little LEGO CubeDudes created by PIXAR animator Angus MacLane.

Inhabitat’s Week in Green: lenses that magnify wind, spider silk bacteria, and the largest solar sports facility originally appeared on Engadget on Sun, 08 Aug 2010 22:30:00 EDT. Please see our terms for use of feeds.

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Photon enhanced thermionic emission could double efficiency of solar cells

Engineers at Stanford have developed a process which can harness the light and heat of the sun simultaneously, which could lead to solar cells that are twice as efficient as those currently available. Called photon enhanced thermionic emission — or PETE for short — the process differs from traditional cells which lose efficiency as temperatures rise, and the materials needed to build the cells are cheap and widely available. The engineers got around the lower efficiencies by coating a piece of semiconducting material with a thin layer of the metal cesium, which enables the material to use both heat and light simultaneously. While the materials as currently demonstrated work best in very high temperatures, the researchers indicate that in the near future, the materials could have wide enough application to make them competitive with traditional forms of energy. Hit the source for the full story.

Photon enhanced thermionic emission could double efficiency of solar cells originally appeared on Engadget on Tue, 03 Aug 2010 20:25:00 EDT. Please see our terms for use of feeds.

Permalink Science Daily  |  sourceNature  | Email this | Comments