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Science

Sound Increases the Efficiency of Boiling 96

hessian writes "Scientists at the Georgia Institute of Technology achieved a 17-percent increase in boiling efficiency by using an acoustic field to enhance heat transfer. The acoustic field does this by efficiently removing vapor bubbles from the heated surface and suppressing the formation of an insulating vapor film."
Biotech

Battle Brewing Over Labeling of Genetically Modified Food 334

gollum123 writes with this excerpt from the NY Times: "For more than a decade, almost all processed foods in the United States — cereals, snack foods, salad dressings — have contained ingredients from plants whose DNA was manipulated in a laboratory. Regulators and many scientists say these pose no danger. But as Americans ask more pointed questions about what they are eating, popular suspicions about the health and environmental effects of biotechnology are fueling a movement to require that food from genetically modified crops be labeled, if not eliminated. The most closely watched labeling effort is a proposed ballot initiative in California that cleared a crucial hurdle this month, setting the stage for a probable November vote that could influence not just food packaging but the future of American agriculture. Tens of millions of dollars are expected to be spent on the election showdown. It pits consumer groups and the organic food industry, both of which support mandatory labeling, against more conventional farmers, agricultural biotechnology companies like Monsanto and many of the nation's best-known food brands like Kellogg's and Kraft."
ISS

ISS Captures SpaceX Dragon Capsule 217

Today at 9:56AM EDT (13:56 GMT) the robotic arm on the International Space Station successfully captured SpaceX's Dragon capsule. It's the first time a commercial craft has connected with the ISS, and the first time a spacecraft made in the U.S. has gone to the station since the retirement of the shuttle. The approach was delayed temporarily as engineers worked out bad sensor readings due to light reflected off the ISS's Kibo laboratory. "To work around the problem, SpaceX narrowed the field of view for the laser sensor so that it wouldn't pick up light from the offending reflector. Dragon then returned to the 30-meter checkpoint and moved in for the final approach." If all goes well today, the capsule will most likely be opened tomorrow. Video of the operation is being broadcast live on NASA TV.
Australia

Australia and South Africa To Share the Square Kilometer Array 79

ananyo writes "The battle for the world's largest radio telescope has ended in a draw. As an earlier Slashdot story suggested, South Africa and Australia are to split the Square Kilometre Array, a €1.5 billion (US$1.9 billion) project made up of 3,000 15-meter-wide dishes and an even larger number of simple antennas. The decision was announced at a meeting outside of Amsterdam in the Netherlands, following a vote by SKA's international board."
Education

Faculty Votes For Open Access Policy At UC San Francisco 146

Marian the Librarian writes "UCSF is among the first public institutions to adopt an open access policy, and is the largest scientific institution to have such a policy. The policy, voted unanimously by the faculty, will allow UCSF authors to put electronic versions of their published scientific articles on an open access repository making their research findings freely available to the public. Dr. Richard A. Schneider, who led the initiative, said, 'Our primary motivation is to make our research available to anyone who is interested in it, whether they are members of the general public or scientists without costly subscriptions to journals. The decision is a huge step forward in eliminating barriers to scientific research.'"
Japan

Volunteers Use Annular Eclipse To Measure Sun More Accurately 75

Anonymous Squonk writes "The measurement of the sun currently in use was actually calculated over 120 years ago, and is off by hundreds of kilometers. Thousands of ordinary Japanese citizens worked together to improve this estimate. By measuring the borders of the 'ring of fire' effect of the recent eclipse, and using the known size and distance from the Earth of the sun, the radius of the Sun was measured as 696,010 kilometers, with a margin of error of only 20 kilometers."
Moon

Neil Armstrong Gives Rare Interview 248

pcritter writes "In a rare coup for accountants' association CPA Australia, CEO Alex Malley interviews Neil Armstrong, whose dad worked as an Auditor, bringing him back four decades to the pinnacle of the space race. Neil reveals, 'I thought we had a 90 per cent chance of getting back safely to Earth on that flight but only a 50-50 chance of making a landing on that first attempt.' The four-part video series is now posted on CPA Australia's website."
Moon

NASA To Future Lunar Explorers: Don't Mess With Our Moon Stuff 346

coondoggie writes "NASA today gently reminded any future Moon explorers that any relics of its Apollo missions or other U.S. lunar artifacts should be off limits and are considered historic sites. NASA issued the reminder in conjunction with the X Prize Foundation and its Google Lunar X Prize competition which will use NASA's Moon sites guidelines as it sifts through the 26 teams currently developing systems and spacecraft to land on the Moon."
Medicine

Supreme Court Orders Do-Over On Key Software Patents 167

Fluffeh writes "It seems that the U.S. Supreme Court has an itch it just can't scratch. A patent granted to the Ultramercial company covers the concept of allowing users to watch a pre-roll advertisement as an alternative to paying for premium content and the company is demanding fees from the likes of Hulu and YouTube. Another company called WildTangent, however, is challenging Ultramercial's 'invention' as merely an abstract idea not eligible for patent protection. Add to this a recent ruling by the Supreme Court restricting patents — albeit on medical diagnostic techniques — and you get into a bit of a pickle. The Supreme Court is now sending the Ultramercial case back to the lower courts for another round, which doesn't mean that the court disagrees with the original ruling, but rather that it thinks it is a patent case that is relevant to the situation and they want to re-examine it under this new light."
Space

SETI Pioneer Jill Tarter Retires 82

ananyo writes "After 35 years, astronomer Jill Tarter is retiring from the Search for Extraterrestrial Intelligence (SETI) — a field she helped pioneer and popularize, most recently at the SETI Institute in Mountain View, California. Tarter, who inspired the late Carl Sagan to create the fictional character Ellie Arroway, heroine of the book and movie Contact, says she will instead focus her efforts on what she calls 'the search for intelligent funding.'"
Moon

"Part-Time" Scientists Aim To Build Autonomous Moon Rover 111

First time accepted submitter ziegenberg writes "The lunar rover 'Asimov' developed by the Part-Time Scientists, and due to land in 2014, will be the first autonomously navigated rover on the Moon. Its autonomous navigation system is a major technological leap. While the Russian Moon rovers Lunokhod 1 and 2 in the early 70s were fully controlled from Earth, today's Mars rovers like NASA's Mars Exploration Rover 'Opportunity,' which has been tirelessly exploring the Red Planet since 2004, are autonomous. However, Opportunity requires nearly three minutes to process a pair of images — a delay that causes it to move at an average speed of just 1 cm/sec or less. New developments by the technology partnership between the DLR Institute of Robotics and Mechatronics and the PTS have created, for the first time, an autonomous navigation system for a rover that has the capacity to process multiple images per second. The technology boosts a stereo camera that Asimov will use to calculate its own motion, generate a 2.5-dimensional environmental model, evaluate the site and determine a collision-free path — all in real time."
Science

MIT Creates Superhydrophobic Condiment Bottles 292

An anonymous reader writes "First we had a superhydrophobic spray that meant no dirt or sweat could stick to your clothes. Then a hydrophobic nanocoating was created for circuit boards to make them water resistant. Now MIT has gone a step further and solved one of the ongoing problems of using condiments: they've figured out how to make a food-safe superhydrophobic coating for food packaging. It means ketchup and mayonnaise will no longer be stuck to the insides of the bottle, and therefore there will no longer be any waste. What's amusing is this seems to be a happy accident. The MIT team was actually investigating slippery coatings to stop gas and oil lines clogging as well as how to stop a surface from having ice form on it. Now their lab is filled with condiments for continued testing of their food-safe version."
Medicine

Scientists Turn Skin Cells Into Beating Heart Muscle 121

An anonymous reader writes "By taking skin cells and turning them into stem cells, a technique that is already well known, researchers at Technion Israel Institute of Technology were able to generate beating heart cells — a medical first. 'We have shown that it's possible to take skin cells from an elderly patient with advanced heart failure and end up with his own beating cells in a laboratory dish that are healthy and young — the equivalent to the stage of his heart cells when he was just born,' Lior Gepstein, study author and professor of medicine said."
Science

Return of the Vacuum Tube 313

sciencehabit writes "Peer inside an antique radio and you'll find what look like small light bulbs. They're actually vacuum tubes — the predecessors of the silicon transistor. Vacuum tubes went the way of the dinosaurs in the 1960s, but researchers have now brought them back to life, creating a nano-sized version that's faster and hardier than the transistor (abstract). It's even able to survive the harsh radiation of outer space."
Japan

Little Health Risk Seen From Fukushima's Radioactivity 201

gbrumfiel writes "Two independent reports show that the public and most workers received only low doses of radiation following last year's meltdowns at the Fukushima Daiichi nuclear power plant in Japan. Nature reports that the risks presented by the doses are small, even though some are above guidelines and limits set by the Japanese government. Few people will develop cancer as a result of the accident, and those that do may never be able to conclusively link their illness to the meltdowns. The greatest risk lies with the workers who struggled in the early days to bring the reactors under control. So far no ill-effects have been detected. At Chernobyl, by contrast, the highest exposed workers died quickly from radiation sickness."
Biotech

Stanford Bioengineers Create Rewritable Digital Data Storage In DNA 56

An anonymous reader writes "You don't hear too much about biological computing but in research published this week in the Proceedings of the National Academy of Sciences, scientists reveal they have devised the genetic equivalent of a binary digit (full article, freely available) — a 'bit' in data parlance. 'It took us three years and 750 tries to make it work, but we finally did it,' according to Jerome Bonnet, of research which describes, a method for repeatedly encoding, storing and erasing digital data within the DNA of living cells."
Medicine

Know What Time It Is? Your Medical Device Doesn't 290

An anonymous reader writes "A man with one clock knows what time it is, goes the old saw, a man with two is never sure. Imagine the confusion, then, experienced by a doctor with dozens. Julian Goldman is an anaesthetist at Massachusetts General Hospital in Boston. After beginning to administer blood-thinning medication during an urgent neurological procedure in 2005, Mr Goldman noticed that the EMR had recorded him checking the level of clotting 22 minutes earlier. As a result, four hospitals in the northeast had their medical devices checked, and found that on average they were off by 24 minutes. The easy solution that devices could have used since 1985? NTP."
Moon

Russia To Establish Bases On the Moon 249

ananyo writes "Vladimir Popovkin, the head of Roscosmos, the Russian space agency, has said that Russia will pursue extensive, long-lived operations at the Moon's surface. 'We're not talking about repeating what mankind achieved 40 years ago,' Popovkin said, through a translator at the Global Space Exploration Conference in Washington DC. 'We're talking about establishing permanent bases.' The heads of the space agencies for Europe, Canada and Russia, along with senior representatives from the space agencies of India and Japan were in Washington DC talking about the benefits of international collaboration. JAXA, the Japanese Space Agency, also issued a clear pronouncement about targeting the Moon."
Biotech

EU Blocks France's Ban of Monsanto's GM Maize 285

redletterdave writes with an update to news from a few months ago that France had banned the growing of Monsanto's genetically modified corn. After reviewing the evidence France submitted in support of the ban, the European Food Safety Authority has now rejected it. An official opinion (PDF) stated that they "could not identify any new science-based evidence indicating that maize MON 810 cultivation in the EU poses a significant and imminent risk to the human and animal health or the environment."
Education

Machine-Guided Learning Matches Teachers In Study 76

New submitter dougled writes "A study at six universities found that students taught statistics mainly through software learned as much as peers taught primarily by humans. And the robots got the job done more quickly. '... our results indicate that hybrid-format students took about one-quarter less time to achieve essentially the same learning outcomes as traditional-format students.' They add, 'There is every reason to expect these systems to improve over time, perhaps dramatically, and thus it is not foolish to believe that learning outcomes will also improve.'"

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