In the News
Men Who Smoke Heavily May Impair Sperm, Fertility Men who smoke cigarettes may experience a significant decline in their capacity to father a child, research by a reproductive medicine specialist from the University at Buffalo has shown. [Odd] A Romanian couple has named their son Yahoo as a sign of gratitu Daily Libertatea said on Thursday Cornelia and Nonu Dragoman, both from Transylvania, met and decided they were meant for each other following a three-month relationship over the net.They married and had a baby this Christmas, whom they decided to name after one of the worldwide web's most popular portals."We named him Lucian Yahoo after my father and the net, the main beacon of my life,"Cornelia Dragoman was quoted as saying. Funding the all-electric aircraft
Today, Philippe Masson of the FAMU-FSU College of Engineering and Center for Advanced Power Systemsand colleagues at NASA and Georgia Tech publish details of an entirely new class of aircraft engine that, if it takes off, could lead to an all-electric aircraft that would cut airport pollution and reduce aircraft vapor trails to a distant memory. You can read my write-up about the work on the AlphaGalileo site here.
Unfortunately, while the science is sound, no one is yet beating a path to the inventors’ door, despite NASA backing. I asked Masson why he thought this was the case and his answer provides some cutting insights into the nature of the transport industry and the manufacturers that currently underpin it. First off he pointed out that, “Conventional jet engines (turbofans) are very reliable and can still be improved: people are still working on NOx and noise reduction (including as part of our NASA sponsored project),” he says, “Therefore, there is a lot of inertia and imposing a new and totally different technology would be very difficult.” The major advantage of using electrical power is environment preservation because the performance of an all-electric aircraft would be unchanged unless one takes into account increased controllability and decreased maintenance requirements. Masson’s electric jet is based on using zero-resistance superconducting materials as the magnetic components of the turbo-driving motor, but he points out that these, and cryogenic support systems needed to make them work, are still very expensive thus making funding difficult to find. It is possible that mass production would reduce costs to an economically viable level, but that is probably not going to happen any time soon. “The motor designs we proposed can exhibit impressive power densities that would unfortunately almost only benefit airborne applications, there are no other applications with critical constraints in terms of weight and volume,” he told me, “As for the car industry in which combustion engine manufacturers are putting a lot of pressure to prevent new clean technologies to take off, jet engine manufacturers would not be happy to see electrical propulsion systems becoming a new standard.” “An all-electric aircraft prototype is feasible,” he adds, “but imposing this technology as a replacement to gas turbines would still require a lot of research and development to meet flight requirements in terms of reliability.” However, Masson asserts that the appearance of increasingly electrical airliners from both Airbus and Boeing could hint at a future of all-electric aircraft. “I am convinced that one day in a not so far future we will see small electrically powered aircraft,” he says. He concedes that, “It will be years, probably tens of years, before we can see a truly all-electrical aircraft as all the components require extensive testing and a very high reliability before being implemented in airplanes.” Masson and his colleagues have approached several companies and aircraft manufacturers and have not yet been successful in getting funding to build a prototype of their superconducting propulsion motor for which patents are pending. “We are still hopeful and will keep looking for funding,” he says. AD: Free Christmas Gifts for Scientists Play Santa to the scientist in your life without it costing you a penny - grab a free subscription to their favorite science magazine! Vanadium Appears To Play Role In Speeding Recovery From Infections Dietary supplements containing vanadium are used by body builders to help beef up muscles and by some diabetic people to control blood sugar. New research now suggests the naturally occurring but easily toxic element may help prepare the body to recover speedily from infections from gram-negative organisms such as E. coli.
Science Behind A Wrinkle-filler: Researchers Discover For First Time H The current battle between the makers of anti-wrinkle products -- widely compared with the Coke and Pepsi struggle for superiority -- is receiving an injection of scientific understanding with the release of a new study from the University of Michigan Health System. Tiramisu: Heaven in Your Mouth A mature, comprehensive site offering exhaustive information about this Italian dessert. Recipes include classic versions as well as dozens of variations on a theme, including low-fat, eggless, and other embellishments. Readers may submit recipes, rate versions of tiramisu from their local restaurants, and contribute thoughts to a guest book. Maintained by a knowledgeable hobbyist; many recipes personally verified by LII leadership. The Year We Had Two Thanksgivings "At the beginning of Franklin Roosevelt's presidency, Thanksgiving was not a fixed holiday; it was up to the President to issue a Thanksgiving Proclamation."This essay describes opposition to Roosevelt's selection of the third Thursday in November (rather than the traditional fourth) in 1939, and the subsequent 1941 law designating the Thanksgiving holiday for the fourth Thursday in November. Includes images of related documents. From the Franklin D. Roosevelt Presidential Library and Museum. Efficient Biofuel Made From Genetically Modified E. Coli Bacteria Researchers have developed a new method for producing next-generation biofuels by genetically modifying Escherichia coli bacteria to be an efficient biofuel synthesizer. The method could lead to mass production of these biofuels. The research team modified key pathways in E. coli to produce several higher-chain alcohols from glucose, a renewable carbon source. Quantum Light Beams Good For Fast Technology Scientists have made another breakthrough in the technology that will drive next generation computers and teleportation. The researchers have successfully superposed light beams, which produces a state that appears to be both on and off at once. Light beams that are simultaneously on and off are vital for the next-generation super computers which should be faster than current computers based on bits, that are either on or off.
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