Computer analysis of metamaterial invisibility

A unique computer model designed by a mathematician at the University of Liverpool has shown that it is possible to make objects, such as aeroplanes and submarines, appear invisible at close range. Scientists predict that metamaterials could be of use in military technology, such as in the construction of fighter jets and submarines, but it …

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Discovery of first gene that specifically links calorie restriction to longevity

Loss of only one of the genes, a gene encoding the protein PHA-4, negated the lifespan-enhancing effect of calorie-restriction in worms. And, when researchers undertook the opposite experiment—by overexpressing pha-4 in worms—the longevity effect was enhanced. “PHA-4 acts completely independent of insulin/IGF-1 signaling and turns out to be essential for CR-mediated longevity,” says Panowski. “We …

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The Global Boom in coal

The world is building a lot of coal-fired power to go with all of the coal-fired power it already has. This is horrible because air pollution from coal kills more than one million people every year. We need to use all other means to reduce the increase in coal usage, this means more nuclear as …

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New nanoparticle and weighing and counting cells

From physorg, barium titanate (BaTiO3) nanoparticles in a polymer matrix could allow fabrication of improved capacitors able to store twice as much energy as existing devices. The improved capacitors could be used in consumer devices such as cellular telephones – and in defense applications requiring both high energy storage and rapid current discharge. MIT researchers …

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U of Cincinnati Researchers Shatter World Records with 18mm Long Carbon Nanotube Arrays

UC researchers (in conjunction with First Nano, a division of CVD Equipment Corporation of Ronkonkoma, New York) have produced extremely long CNT arrays (18 mm) on their EasyTube System using a Chemical Vapor Deposition (CVD) process. “First, we were able to grow the arrays up to 18 mm,” he says, ticking off the achievements. “Second, …

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Hydrogen and biomass could provide US energy using 6-15% of the land

UPDATE: Engineer-Poet analyzes the H2CAR proposal and shows why it is a misleading diversion from real solutions Proposed process One of the possible configurations of the proposed H2CAR process. Some images courtesy of Department of Energy/National Renewable Energy Laboratory. Clearly it would be best if coal was not used but biomass only. Scientists have demonstrated …

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100 mbps internet speed over existing copper lines

A european research project, Eureka 3051 virtual fiber , has successfully trialed 10 Mbps symmetrical internet speed for 28000 people over existing copper cable lines. Local businesses in the trial were able to obtain 50 MB/s symmetrical data connectivity. The technology has subsequently been developed to provide 100 MB/s connectivity and has already been sold …

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Another plastic solar cell efficiency gain this time from baking

The best plastic solar cells are made from a light-absorbing polymer containing soccer ball-shaped carbon molecules called fullerenes. The fullerenes provide stepping stones in the plastic film for charge to hop across. By carefully heating finished cells to around 150ºC, Carroll and colleagues made the fullerene molecules form whiskers of crystal. These trigger crystallisation in …

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Intel confirms programmable, multi-core chip

Intel’s Larrabee chip will be a multi-core, programmable part that will use a tweaked version of the x86 instruction set and will have at least one teraflop of processing power. Intel expects software developers to craft specialized applications for the processor, giving them a boost on some of the most demanding workloads. Intel expects to …

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Higher Body Fat Linked to Gene

British gene hunters said they have found the strongest DNA marker yet for obesity, and one that is very common among most Europeans. The investigators first identified the gene, FTO, in the DNA of people with type 2, or late-onset diabetes, a condition that is lifestyle-related. Individuals with one copy of the FTO variant had …

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