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China

Bill Gates To Help China Build Traveling Wave Nuclear Reactor 158

Posted by samzenpus
from the power-to-a-billion-people dept.
First time accepted submitter BabaChazz writes "Microsoft Corp. co-founder Bill Gates says he is in discussions with China to jointly develop a new kind of nuclear reactor. During a talk at China's Ministry of Science & Technology Wednesday, the billionaire said: 'The idea is to be very low cost, very safe and generate very little waste.' Gates backs Washington-based TerraPower, which is developing a nuclear reactor that can run on depleted uranium."
NASA

Voyager 1 Exits Our Solar System 191

Posted by samzenpus
from the so-long-farewell-auf-wiedersehen-goodbye dept.
eldavojohn writes "The first man-made craft to do so is now entering a 'cosmic purgatory' between solar systems and entering an interstellar space of the Milky Way Galaxy. With much anticipation, Voyager 1 is now 'in a stagnation region in the outermost layer of the bubble around our solar system. Voyager is showing that what is outside is pushing back.' After three decades the spacecraft is still operating and apparently has enough power and fuel to continue to do so until 2020. The first big piece of news? 'We've been using the flow of energetic charged particles at Voyager 1 as a kind of wind sock to estimate the solar wind velocity. We've found that the wind speeds are low in this region and gust erratically. For the first time, the wind even blows back at us. We are evidently traveling in completely new territory. Scientists had suggested previously that there might be a stagnation layer, but we weren't sure it existed until now.' This process could take months to years to completely leave the outer shell but already scientists are receiving valuable information."
Power

GE To Turn World's Biggest Civilian Plutonium Stockpile Into Electricity 171

Posted by samzenpus
from the use-it-or-lose-it dept.
First time accepted submitter ambermichelle writes "GE Hitachi Nuclear Energy has proposed to the U.K. government to build an advanced nuclear reactor that would consume the country's stockpile of radioactive plutonium. The technology called PRISM, or Power Reactor Innovative Small Module, would use the plutonium to generate low-carbon electricity. The U.K. has the world's largest civilian stockpile of plutonium. The size of the stockpile is 87 tons and growing. Nuclear reactors unlock energy by splitting atoms of the material stored in fuel rods. This process is called fission. For fission to be effective, neutrons – the nuclear particles that do the splitting and keep the reaction going – must maintain the right speed. Conventional reactors use water to cool and slow down neutrons, keeping fission effective. But water-cooled reactors leave some 95 percent of the fuel's potential energy untapped."
Science

Quantum Coherence Found Fueling Photosynthesis 94

Posted by samzenpus
from the spooky-energy dept.
Gaygirlie writes "Ars Technica has posted an interesting article about new findings regarding quantum physics and photosynthesis. Their excerpt for the article: 'Physicists have found the strongest evidence yet of quantum effects fueling photosynthesis. Multiple experiments in recent years have suggested as much, but it has been hard to be sure. Quantum effects were clearly present in the light-harvesting antenna proteins of plant cells, but their precise role in processing incoming photons remained unclear.' Here's a little background info for those unaware of what coherence and quantum coherence are."
Space

New All-Sky Map Shows the Magnetic Fields of the Milky Way 40

Posted by samzenpus
from the discerning-eye dept.
An anonymous reader writes "With a unique new all-sky map, scientists at MPA have made significant progress toward measuring the magnetic field structure of the Milky Way in unprecedented detail. Specifically, the map is of a quantity known as Faraday depth, which among other things, depends strongly on the magnetic fields along a particular line of sight. To produce the map, data were combined from more than 41,000 individual measurements using a novel image reconstruction technique. The work was a collaboration between scientists at the Max Planck Institute for Astrophysics (MPA), who are specialists in the new discipline of information field theory, and a large international team of radio astronomers. The new map not only reveals the structure of the galactic magnetic field on large scales, but also small-scale features that provide information about turbulence in the galactic gas."
Science

Earth's Core Made In Miniature 169

Posted by Unknown Lamer
from the evil-geniuses-for-a-molten-tomorrow dept.
ananyo writes "A 3-meter-tall metal sphere full of molten sodium is about to start work modeling the Earth's core. The gigantic dynamo, which has taken researchers ten years to build, 'will generate a self-sustaining electromagnetic field that can be poked, prodded and coaxed for clues about Earth's dynamo, which is generated by the movement of liquid iron in the outer core.'"
Games

Video Gamers Advancing Genetic Research 21

Posted by Soulskill
from the just-slap-a-few-achievements-in-there dept.
An anonymous reader writes "From McGill's news site: 'Thousands of video game players have helped significantly advance our understanding of the genetic basis of diseases such as Alzheimer's, diabetes and cancer over the past year. They are the users of a web-based video game developed by Dr. Jérôme Waldispuhl of the McGill School of Computer Science and collaborator Mathieu Blanchette. Phylo is designed to allow casual game players to contribute to scientific research by arranging multiple sequences of coloured blocks that represent human DNA. By looking at the similarities and differences between these DNA sequences, scientists are able to gain new insight into a variety of genetically-based diseases.'" Hopefully Phylo will be as successful as Foldit.
Earth

'Merging Tsunami' Amplified Destruction In Japan 47

Posted by Soulskill
from the destructive-interference dept.
Hugh Pickens writes "The magnitude-9.0 Tohoku-Oki temblor, the fifth-most powerful quake ever recorded, triggered a tsunami that doubled in intensity over rugged ocean ridges, amplifying its destructive power at landfall, as seen in data from NASA and European radar satellites that captured at least two wave fronts that day, which merged to form a single, double-high wave far out at sea. This wave was capable of traveling long distances without losing power. Ocean ridges and undersea mountain chains pushed the waves together along certain directions from the tsunami's origin. 'It was a one-in-10-million chance that we were able to observe this double wave with satellites,' says study team member Y. Tony Song. 'Researchers have suspected for decades that such 'merging tsunamis' might have been responsible for the 1960 Chilean tsunami that killed about 200 people in Japan and Hawaii, but nobody had definitively observed a merging tsunami until now.' The study suggests scientists may be able to create maps that take into account all undersea topography, even sub-sea ridges and mountains far from shore to help scientists improve tsunami forecasts."
Space

US Air Force Pays SETI To Check Kepler-22b For Alien Life 294

Posted by Soulskill
from the best-defense-is-a-strong-offense dept.
New submitter iComp writes with this quote from El Reg: "The Search for Extra Terrestrial Intelligence (SETI) has announced that it is back in business checking out the new [potentially] habitable exoplanets recently discovered by NASA's Kepler space telescope to see if they might be home to alien civilizations. The cash needed to restart SETI's efforts has come in part from the U.S. Air Force Space Command, who are interested in using the organization's detection instruments for 'space situational awareness'."
Medicine

Vaccine Developed Against Ebola 97

Posted by Soulskill
from the thwarting-incredibly-implausible-doomsday-scenarios dept.
New submitter Lurching writes "Scientists have developed a vaccine that protects mice against a deadly form of the Ebola virus. First identified in 1976, Ebola fever kills more than 90% of the people it infects. The researchers say that this is the first Ebola vaccine to remain viable long-term and can therefore be successfully stockpiled. The results are reported in the journal Proceedings of National Academy of Sciences (abstract)."
Science

Graphene Spun Into Meter-Long Fibers 151

Posted by Soulskill
from the incremental-progress dept.
ananyo writes "Nano-sized flakes of graphene oxide can be spun into graphene fibers several meters long, researchers in China have shown. The strong, flexible fibers, which can be tied in knots or woven into conductive mats, could be the key to deploying graphene in real-world devices such as flexible batteries."
Science

Russian Scientists Say They'll Clone a Mammoth Within 5 Years 301

Posted by samzenpus
from the pleistocene-park dept.
Many scientists (mainly Japanese and Russian) have dreamed of cloning a mammoth over the years. When the mammoth genome was partially reconstructed in 2008, that dream seemed a bit closer. Besides the millions of dollars needed for such a project, the biggest hurdle was the lack of a good sample of mammoth DNA. That hurdle has now been cleared, thanks to the discovery of well-preserved bone marrow in a mammoth thigh bone. Russian scientist Semyon Grigoriev, acting director of the Sakha Republic's mammoth museum, and colleagues from Japan's Kinki University say that within 5 years they'll likely have a clone. From the article: "What's been missing is woolly mammoth nuclei with undamaged genes. Scientists have been on a Holy Grail-type search for such pristine nuclei since the late 1990s. Now it sounds like the missing genes may have been found."
Earth

Physical Models In an Age of Computers 78

Posted by timothy
from the bah-all-models-should-be-life-sized dept.
Harperdog points out this article "about the Bay Model in Sausalito, California, which was built in 1959 to study a (terrible) plan to dam up San Francisco Bay. The model was at the forefront of research and testing on water issues that affected all of California; its research contributions have been rendered obsolete by computer testing, but there are many who think it could contribute still. Now used for education and tourism, the model is over 1 1/2 acres and replicates a 24-hour tidal cycle in just 14 minutes. Good stuff."
Science

Research Data: Share Early, Share Often 131

Posted by timothy
from the coin-toss-1-coin-toss-2-coin-toss-3 dept.
Shipud writes "Holland was recently in the news when a psychology professor in Tilburg University was found to have committed large-scale fraud over several years. Now, another Dutch psychologist is suggesting a way to avert these sort of problems, namely by 'sharing early and sharing often,' since fraud may start with small indiscretions due to career-related pressure to publish. In Wilchert's study, he requested raw data from the authors of some 49 papers. He found that the authors' reluctance to share data was associated with 'more errors in the reporting of statistical results and with relatively weaker evidence (against the null hypothesis). The documented errors are arguably the tip of the iceberg of potential errors and biases in statistical analyses and the reporting of statistical results. It is rather disconcerting that roughly 50% of published papers in psychology contain reporting errors and that the unwillingness to share data was most pronounced when the errors concerned statistical significance.'"
Japan

Osteoporosis Drug Makes Lengthy Space Trips More Tolerable 39

Posted by timothy
from the get-your-bones-to-mars dept.
An anonymous reader writes "Japanese researchers have discovered that by taking drugs normally targeted at osteoporosis sufferers they can mitigate the long term effects of weightlessness. This makes it more possible that humans could reasonably fly to Mars land there and be fully functional even after the lengthy journey." JAXA provides much more detail, including interviews with both lead investigator Toshio Matsumoto and Koichi Wakata, the first subject of the experiment.

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