Land usage problem for renewable energy

The blog, we support lee, describes articles by the New Scientist and Science Daily which describe how renewable energy has a land usage problem when scaled up. Renewable does not mean green. That is the claim of Jesse Ausubel of the Rockefeller University in New York. Writing in Inderscience’s International Journal of Nuclear Governance, Economy …

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Nanomechanical computer project

Nanowerk reports on researchers who are working to build nanomechanical computers The 9 page paper “A nanomechanical computer—exploring new avenues of computing” by Robert H Blick1, Hua Qin, Hyun-Seok Kim and Robert Marsland is here It has to be clearly stated that current operating speeds of nano-electromechanical single electron transistors (NEMSETs) are of the order …

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Atomic Layer Deposition

atomic layer deposition (ALD), is a thin-film growth technique that offers the unique capability to coat complex, three-dimensional objects with precisely fitted layers. The three images illustrate how a combination of anodized aluminum oxide (AAO) and atomic layer deposition (ALD) provides precisely controlled, ultra-uniform porous support for new and well-defined catalysts. Credit: ANL The scientists …

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China Yuan may have a one day 3.5% revaluation

China may strengthen the yuan by as much as 3.5 percent in a single day to cool the economy and appease U.S. lawmakers, said Glenn Maguire, chief Asia economist at Societe Generale SA. Such a revaluation would take the yuan to about 7.3 to one US dollar. This would be in line with my projection …

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Liftport the space elevator company to keep operating

Update on Liftport. Liftport looks to be getting new partners who will help develop the high altitude long endurance (HALE) tethered balloon systems Brian WangBrian Wang is a Futurist Thought Leader and a popular Science blogger with 1 million readers per month. His blog Nextbigfuture.com is ranked #1 Science News Blog. It covers many disruptive …

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More bendable Optical fiber will broader ultrabroadband deployment

Optical fiber that is 100 times more bendable than previous fiber will enable more fiber deployment to hotels, apartments and office buildings Brian WangBrian Wang is a Futurist Thought Leader and a popular Science blogger with 1 million readers per month. His blog Nextbigfuture.com is ranked #1 Science News Blog. It covers many disruptive technology …

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New production process for single walled carbon nanotubes

Kenji Hata and Tatsuki Hiraoka of the Nano-Carbon Materials Team, the Research Center for Advanced Carbon Materials of the National Institute of Advanced Industrial Science and Technology (AIST) and Zeon Corporation have jointly developed a technology to synthesize a large amount of single-walled carbon nanotubes directly on large area metal substrates for the first time. …

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First commercial helium ion microscope

Carl Zeiss SMT said during SEMICON West July 2007 that it had shipped the worlds first ‘ORION’ Helium ion microscope, developed by a company called ALIS that it acquired in 2006 to the National Institute of Standards and Technology (NIST) in Gaithersburg, MD. This was part of a project calls for a new microscope for …

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Solar cell efficiency record of 42.8%

Using a novel technology that adds multiple innovations to a very high-performance crystalline silicon solar cell platform, a consortium led by the University of Delaware has achieved a record-breaking combined solar cell efficiency of 42.8 percent from sunlight at standard terrestrial conditions. This beats the previous 40.7% record of Spectrolabs. digg_url= ‘http://advancednano.blogspot.com/2007/07/solar-cell-efficiency-record-of-428.html’; digg_skin =’compact’;reddit_url=’http://advancednano.blogspot.com/2007/07/solar-cell-efficiency-record-of-428.html’reddit_url=’advancednano.blogspot.com/2007/07/solar-cell-efficiency-record-of-428.html’ UD …

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Quantum Cascade Lasers created

Several types of lasers exist today that can emit at desired infrared wavelengths, none of these lasers meet requirements for some applications because they are either too expensive, not mass-producible, too fragile or require power-hungry and inefficient cryogenic refrigeration. Applications for suitably portable laser systems include the use of infrared countermeasures to protect aircraft from …

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100 megawatt pulses of ultra-fast light make non-linear effects

Researchers at the U.S. Department of Energy’s Brookhaven National Laboratory have generated extremely short pulses of light that are the strongest of their type ever produced and could prove invaluable in probing the ultra-fast motion of atoms and electrons. The scientists also made the first observations of a phenomenon called cross-phase modulation with this high-intensity …

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