Slashdot Mirror

An anonymous reader quotes a report from Phys.Org: In a massive crackdown, police and law enforcement agencies across Europe have seized more than 4,500 website domains trading in counterfeit goods, often via social networks, officials said on Monday. The operation came as Europol, Europe's police agency, unveiled its newest campaign dubbed "Don't F***(AKE) Up" to stop scam websites selling fake brand names online. In the crackdown, agencies from 27 countries mostly in Europe but including from the U.S. and Canada, joined forces to shut down over 4,500 websites. They were selling everything from "luxury goods, sportswear, spare parts, electronics, pharmaceuticals, toiletries and other fake products," Europol said in a statement, without saying how long the crackdown took. An annual operation run in collaboration with the U.S. Immigration and Customs Enforcement and Homeland Security, there was "a significant increase in the number of seized domain names compared to last year," said Europol director Rob Wainwright. As part of the crackdown, Dutch anti-fraud police arrested 12 people across The Netherlands over the past two weeks as they searched homes and warehouses. Most of the raids were prompted by online sales of counterfeit goods on social networking sites such as Facebook and Instagram. More than 3,500 items of clothing and fake luxury goods were seized in Holland, including shoes, bags and perfumes purporting to be such brands as Nike, Adidas, and Kenzo, with a market value of tens of thousands euros. Publishing a guide on how to spot fake websites and social media scams, Europol warned consumers had to be on their guard.

vikingpower writes: Dutch prodigy and Amsterdam University Professor Erik Verlinde published a paper on arXiv yesterday, November 7, titled "Emergent Gravity and the Dark Universe." In the paper, Verlinde derives gravity from the so-called Holographic Principle, which -- simply put -- states that gravity emerges from the interplay between and entropy re-arrangement of sub-atomic "strings" that live in a negatively curved spacetime. At that level [...] spacetime and gravity are emergent from an underlying microscopic description in which they have no a priori meaning." Most importantly, Verlinde's paper has as a consequence that dark matter, nemesis of many an astronomer, is nothing more than an illusion. Verlinde, who was awarded the Dutch national Spinoza science prize in the recent past, already completed the tour de force of deriving Newtonian gravity from the same principles in a 2010 paper, also on arXiv. We are probably looking at Nobel-prize material here, as Verlinde is acknowledged by his peers to "go one better than Einstein's General Theory of Relativity." Slashdot reader turkeydance adds from a report via Forbes (Warning: source may be paywalled): As dark matter continues to vex astronomers, new solutions to the dark matter question are proposed. Most focus on pinning down the form of dark matter, while others propose modifying gravity to account for the effect. But a third proposal is simply to remove gravity from the equation. What if the effects of gravity aren't due to some fundamental force, but are rather an emergent effect due to other fundamental interactions? A new paper proposes just that, and if correct it could also explain the effects of dark matter.

An anonymous reader quotes a report from Phys.Org: Researchers at the University of Houston have reported a new method for inducing superconductivity in non-superconducting materials, demonstrating a concept proposed decades ago but never proven. The technique can also be used to boost the efficiency of known superconducting materials, suggesting a new way to advance the commercial viability of superconductors, said Paul C.W. Chu, chief scientist at the Texas Center for Superconductivity at UH and corresponding author of a paper describing the work, published Oct. 31 in the Proceedings of the National Academy of Sciences. The research, demonstrating a new method to take advantage of assembled interfaces to induce superconductivity in the non-superconducting compound calcium iron arsenide, offers a new approach to finding superconductors that work at higher temperatures. Superconducting materials conduct electric current without resistance, while traditional transmission materials lose as much as 10 percent of energy between the generating source and the end user. That means superconductors could allow utility companies to provide more electricity without increasing the amount of fuel used to generate electricity. To validate the concept, researchers working in ambient pressure exposed the undoped calcium iron arsenide compound to heat -- 350 degrees Centigrade, considered relatively low temperature for this procedure -- in a process known as annealing. The compound formed two distinct phases, with one phase increasingly converted to the other the longer the sample was annealed. Chu said neither of the two phases was superconducting, but researchers were able to detect superconductivity at the point when the two phases coexist. Although the superconducting critical temperature of the sample produced through the process was still relatively low, Chu said the method used to prove the concept offers a new direction in the search for more efficient, less expensive superconducting materials.

An anonymous reader quotes a report from Phys.Org: Stanford engineers have invented a technology that would allow an internet user to tell network providers and online publishers when and if they want content or services to be given preferential delivery, an advance that could transform the network neutrality debate. Net neutrality, as it's often called, is the proposition that internet providers should allow equal access to all content rather than give certain applications favored status or block others. But the Stanford engineers -- Professor Nick McKeown, Associate Professor Sachin Katti and electrical engineering PhD Yiannis Yiakoumis -- say their new technology, called Network Cookies, makes it possible to have preferential delivery and an open internet. Network Cookies allow users to choose which home or mobile traffic should get favored delivery, while putting network operators and content providers on a level playing field in catering to such user-signaled preferences. "So far, net neutrality has been promoted as the best possible defense for users," Katti said. "But treating all traffic the same isn't necessarily the best way to protect users. It often restricts their options and this is why so-called exceptions from neutrality often come up. We think the best way to ensure that ISPs and content providers don't make decisions that conflict with the interests of users is to let users decide how to configure their own traffic." McKeown said Network Cookies implement user-directed preferences in ways that are consistent with the principles of net neutrality. "First, they're simple to use and powerful," McKeown said. "They enable you to fast-lane or zero-rate traffic from any application or website you want, not just the few, very popular applications. This is particularly important for smaller content providers -- and their users -- who can't afford to establish relationships with ISPs. Second, they're practical to deploy. They don't overwhelm the user or bog down user devices and network operators and they function with a variety of protocols. Finally, they can be a very practical tool for regulators, as they can help them design simple and clear policies and then audit how well different parties adhere to them." The researchers presented a technical paper on their approach at a conference in Brazil.

An anonymous reader quotes a report from Phys.Org: New research by the University of Surrey published in the journal Monthly Notices of the Royal Astronomical Society has shone light on a globular cluster of stars that could host several hundred black holes, a phenomenon that until recently was thought impossible. Globular clusters are spherical collections of stars which orbit around a galactic center such as our Milky-way galaxy. Using advanced computer simulations, the team at the University of Surrey were able to see the un-see-able by mapping a globular cluster known as NGC 6101, from which the existence of black holes within the system was deduced. These black holes are a few times larger than the Sun, and form in the gravitational collapse of massive stars at the end of their lives. It was previously thought that these black holes would almost all be expelled from their parent cluster due to the effects of supernova explosion, during the death of a star. It is only as recently as 2013 that astrophysicists found individual black holes in globular clusters via rare phenomena in which a companion star donates material to the black hole. This work, which was supported by the European Research Council (ERC), has shown that in NGC 6101 there could be several hundred black holes, overturning old theories as to how black holes form.

Long-time Slashdot reader RockDoctor writes: Remember the screaming and welcoming of our Dyson-Sphere-Dwelling 1500 LY distant Overlords that accompanied the news that star KIC 8462852 was irregularly dimming on both short and longer timescales? A second star with a similar light curve has been discovered and reported on ARXIV.

With the euphonious names "EPIC 204278916" and "2MASS J16020757-2257467", the star is a young M1 (red) star, traveling as part of a group of stars which haven't had time to disperse from their place of formation. The age is estimated at 5 — 11 million years. Analysis of 70+ days of data from the K2 mission epoch shows a rotation of 3.6 days, but a period of 25 days near the start of the observation epoch showed dips in intensity of up to 60% lasting for up to about a day each. Details are in the Arxiv paper linked to above, particularly figures 1 and 4.

If confirmed, this discovery changes the situation with interpreting the so-called "Tabby's Star". Firstly with a second object in the class, the odds of it representing a class of naturally occurring objects compared to a unique, unusual object is greatly increased. Secondly, the different celestial mechanical situations around the different stars allows a better estimate of plausible formation mechanisms. One potentially important point is that clumps of debris that could produce these dimmings seem to be quite large. "It is also important to note that the resulting size for the transiting and occulting clump would be quite large at with the clump being in the order of 1.5 times the radius of the Sun. Sadly, this appears to be a new class of "dirty young planetary system." no alien Overlords, no screaming in the streets. Just business-like astronomy.

An anonymous reader quotes a report from Phys.Org: With more private spaceship traffic expected at the International Space Station in the coming years, two U.S. astronauts embarked on a spacewalk Friday to install a special parking spot for them. Americans Jeff Williams and Kate Rubins switched their spacesuits to internal battery power at 8:04 (1204 GMT) and floated outside the orbiting laboratory to begin the work of attaching the first of two international docking adaptors. The spacewalkers finished the task in just over two hours. "With that, we have a new port of call," said NASA commentator Rob Navias, as the space station flew over Singapore at 10:40 am (1440 GMT). NASA describes the docking adaptor as a "metaphorical gateway to a future" that will allow a new generation of U.S. spacecraft -- the first since the space shuttle program ended in 2011 -- to carry astronauts to the space station. The second docking adaptor is expected to be installed in 2018. Built by Boeing, the circular adaptor measures around 42 inches (one meter) tall and about 63 inches wide. The adaptors will work with Boeing's CST-100 Starliner and SpaceX's Crew Dragon, two spaceships under construction that are planned to ferry astronauts to the space station. The docking adaptor is more sophisticated than past equipment because it will allow automatic parking instead of the current grapple and berthing process, which is managed by astronauts.

An anonymous reader quotes a report from Phys.Org: A new study from BYU, in collaboration with Google Chrome engineers, finds the status quo of warning messages appearing haphazardly -- while people are typing, watching a video, uploading files, etc. -- results in up to 90 percent of users disregarding them. Researchers found these times are less effective because of "dual task interference," a neural limitation where even simple tasks can't be simultaneously performed without significant performance loss. Or, in human terms, multitasking. For example, 74 percent of people in the study ignored security messages that popped up while they were on the way to close a web page window. Another 79 percent ignored the messages if they were watching a video. And a whopping 87 percent disregarded the messages while they were transferring information, in this case, a confirmation code. For example, Jenkins, Vance and BYU colleagues Bonnie Anderson and Brock Kirwan found that people pay the most attention to security messages when they pop up in lower dual task times such as: after watching a video, waiting for a page to load, or after interacting with a website. For part of the study, researchers had participants complete computer tasks while an fMRI scanner measured their brain activity. The experiment showed neural activity was substantially reduced when security messages interrupted a task, as compared to when a user responded to the security message itself. The BYU researchers used the functional MRI data as they collaborated with a team of Google Chrome security engineers to identify better times to display security messages during the browsing experience.

According to a paper published in the journal Physical Review Letters, physicists at the University of California, Irvine, may have discovered a previously unknown subatomic particle that's evidence of a fifth fundamental force of nature. Space.com reports: "[Professor of physics and astronomy Jonathan Feng] and his colleagues analyzed data gathered recently by experimental nuclear physicists at the Hungarian Academy of Sciences, who were trying to find 'dark photons' -- hypothetical indicators of mysterious dark matter. Dark matter is thought to make up about 85 percent of all matter in the universe, but it neither absorbs nor emits light, so it's impossible to detect directly. 'The experimentalists weren't able to claim that it was a new force,' Feng said. 'They simply saw an excess of events that indicated a new particle, but it was not clear to them whether it was a matter particle or a force-carrying particle.' The new work by Feng and his team suggests that the Hungarians found not a 'dark photon' but rather a 'protophobic X boson' -- a strange particle whose existence could indicate a fifth force of nature. The known electromagnetic force acts on protons and electrons, but this newfound particle apparently interacts only with protons and neutrons, and then only at very short distances, researchers said. The potential fifth force may be linked to the electromagnetic and strong and weak nuclear forces, as 'manifestations of one grander, more fundamental force,' Feng said. It's also possible that the universe of 'normal' matter and forces has a parallel 'dark' sector, with its own matter and forces, Feng added. 'It's possible that these two sectors talk to each other and interact with one another through somewhat veiled but fundamental interactions,' Feng said. 'This dark-sector force may manifest itself as this protophobic force we're seeing as a result of the Hungarian experiment. In a broader sense, it fits in with our original research to understand the nature of dark matter.'"

Locke2005 writes: I've always speculated that there might be forces of nature that we never observed because they were on a much larger or smaller scale than we could detect easily. But now Jonathan Feng, a professor of physics and astronomy at the University of California, Irvine, is suggesting there may actually be a fifth force. Of course, this might vanish just like the Higgs Boson evidence did. Can anybody explain better what it was they detected, and why it is being interpreted as evidence of a previously unknown force?

An anonymous reader writes from a report via Phys.Org: Researchers at MIT have just completed the most comprehensive study yet to address whether or not existing electric vehicles could bring about a meaningful reduction in the greenhouse-gas emissions that are causing global climate change. Yes, they can. The study was published today in the journal Nature Energy. Phys.Org reports: "'Roughly 90 percent of the personal vehicles on the road daily could be replaced by a low-cost electric vehicle available on the market today, even if the cars can only charge overnight,' Trancik says, 'which would more than meet near-term U.S. climate targets for personal vehicle travel.' Overall, when accounting for the emissions today from the power plants that provide the electricity, this would lead to an approximately 30 percent reduction in emissions from transportation. The team spent four years on the project, which included developing a way of integrating two huge datasets: one highly detailed set of second-by-second driving behavior based on GPS data, and another broader, more comprehensive set of national data based on travel surveys. Together, the two datasets encompass millions of trips made by drivers all around the country. By working out formulas to integrate the different sets of information and thereby track one-second-resolution drive cycles, the MIT researchers were able to demonstrate that the daily energy requirements of some 90 percent of personal cars on the road in the U.S. could be met by today's EVs, with their current ranges, at an overall cost to their owners -- including both purchase and operating costs -- that would be no greater than that of conventional internal-combustion vehicles."

An anonymous reader quotes a report from Phys.Org: Stony Brook University is using drones to transport medical samples for laboratory analysis to and from remote parts of Madagascar. Phys.Org reports: "The drones are about the size of a large picnic table and have two sets of wings. They take off and land like helicopters and have a flight range of about 40 miles. Blood and other medical samples can be secured in small compartments in the body of the aircraft. Drones are being used in other parts of the developing world to deliver medications and other supplies to remote areas, but Stony Brook officials say theirs is one of the first efforts involving a small unmanned aircraft that actually lands in remote villages and returns quickly to a laboratory. Diagnosis of ailments, like tapeworm disease, which causes life-threatening seizures and contributes to malnutrition in villages on the island, can now be completed within a few hours, said Dr. Peter Small, founding director of Stony Brook's Global Health Institute. To reach these villages, medical workers have had to travel on foot -- there are no roads -- a trip that takes five to nine hours each way. By drone, they can dispatch the medical samples back to Stony Brook's Centre ValBio research station and get lab results within an hour or two, said Patricia Wright, the station's executive director."

schwit1 writes: Astronomers have confirmed another 100 of Kepler's more than 3,000 candidate exoplanets. Phys.org reports: "One of the most interesting set of planets discovered in this study is a system of four potentially rocky planets, between 20 and 50 percent larger than Earth, orbiting a star less than half the size and with less light output than the Sun. Their orbital periods range from five-and-a-half to 24 days, and two of them may experience radiation levels from their star comparable to those on Earth. Despite their tight orbits -- closer than Mercury's orbit around the sun -- the possibility that life could arise on a planet around such a star cannot be ruled out, according to Crossfield." Because the host star as well as many of these other confirmed exoplanets are red dwarf stars, the possibility of life is reduced because the star and its system is likely to have a less rich mix of elements compared to our yellow G-type Sun. In May, Kepler added a record 1,284 confirmed planets, nine of which orbit in their sun's habitable zone.

An anonymous reader quotes a report from Phys.Org: Ransomware -- what hackers use to encrypt your computer files and demand money in exchange for freeing those contents -- is an exploding global problem with few solutions, but a team of University of Florida researchers says it has developed a way to stop it dead in its tracks. The answer, they say, lies not in keeping it out of a computer but rather in confronting it once it's there and, counterintuitively, actually letting it lock up a few files before clamping down on it. "Our system is more of an early-warning system. It doesn't prevent the ransomware from starting [...] it prevents the ransomware from completing its task [...] so you lose only a couple of pictures or a couple of documents rather than everything that's on your hard drive, and it relieves you of the burden of having to pay the ransom," said Nolen Scaife, a UF doctoral student and founding member of UF's Florida Institute for Cybersecurity Research. Scaife is part of the team that has come up with the ransomware solution, which it calls CryptoDrop. "Antivirus software is successful at stopping them when it recognizes ransomware malware, but therein lies the problem," reports Phys.Org. "'These attacks are tailored and unique every time they get installed on someone's system,' Scaife said. 'Antivirus is really good at stopping things it's seen before [...] That's where our solution is better than traditional anti-viruses. If something that's benign starts to behave maliciously, then what we can do is take action against that based on what we see is happening to your data. So we can stop, for example, all of your pictures from being encrypted.' The results, they said, were impressive. 'We ran our detector against several hundred ransomware samples that were live,' Scaife said, 'and in those case it detected 100 percent of those malware samples and it did so after only a median of 10 files were encrypted.'" The University of Florida uploaded a video briefly explaining its software.

An anonymous reader quotes a report from Phys.Org: Researchers from KU Leuven have now built a very sensitive electronic nose with metal-organic frameworks (MOFs). "MOFs are like microscopic sponges," postdoctoral researcher Ivo Stassen explains. "They can absorb quite a lot of gas into their minuscule pores." "We created a MOF that absorbs the phosphonates found in pesticides and nerve gases. This means you can use it to find traces of chemical weapons such as sarin or to identify the residue of pesticides on food. This MOF is the most sensitive gas sensor to date for these dangerous substances. Our measurements were conducted in cooperation with imec, the Leuven-based nanotechnology research centre. The concentrations we're dealing with are extremely low: parts per billion -- a drop of water in an Olympic swimming pool -- and parts per trillion." The chemical sensor can easily be integrated into existing electronic devices, Professor Rob Ameloot adds. "You can apply the MOF as a thin film over the surface of, for instance, an electric circuit. Therefore, it's fairly easy to equip a smartphone with a gas sensor for pesticides and nerve gas." Professor Ameloot continues, "MOFs can measure very low concentrations, so we could use them to screen someone's breath for diseases such as lung cancer and MS in an early stage. Or we could use the signature scent of a product to find out whether food has gone bad or to distinguish imitation wine from the original. This technology, in other words, offers a wide range of perspectives."

An anonymous reader writes: The Netherlands has become the first country in the world to implement a nationwide long-range (LoRa) network for the Internet of Things, says Dutch telecoms group KPN on Thursday. "As from today the KPN LoRa network is available throughout The Netherlands," KPN said in a statement. Phys.Org reports: "The rollout of a low data rate (LoRa) mobile communications network is critical to connect objects as many may not be able to link up with home or work Wi-Fi networks to gain Internet access. The LoRa network is complementary to KPN's networks for the 2G, 3G and 4G phones. KPN has already reached deals to connect some 1.5 million objects, a number which should steadily grow now that the LoRa network is available across the country. Tests are being carried out at the Schiphol airport in Amsterdam -- one of Europe's busiest air hubs -- for baggage handling. Meanwhile in the Utrecht rail station an experiment is under way to allow LoRa to monitor rail switches."

Taco Cowboy quotes a report from ABC Online: German engineers have created a camera no bigger than a grain of salt that could change the future of health imaging -- and clandestine surveillance. Using 3D printing, researchers from the University of Stuttgart built a three-lens camera, and fit it onto the end of an optical fiber the width of two hairs. Such technology could be used as minimally-intrusive endoscopes for exploring inside the human body, the engineers reported in the journal Nature Photonics. The compound lens of the camera is just 100 micrometers (0.1 millimeters) wide, and 120 micrometers with its casing. It could also be deployed in virtually invisible security monitors, or mini-robots with "autonomous vision." The compound lens can also be printed onto image sensor other than optical fibers, such as those used in digital cameras. The researchers said it only took a few hours to design, manufacture and test the camera, which yielded "high optical performances and tremendous compactness." They believe the 3D printing method -- used to create the camera -- may represent "a paradigm shift."

An anonymous reader writes from a report via Phys.Org: Arizona-based startup Local Motors unveiled Olli -- a 3D-printed minibus capable of carrying 12 people. It's powered by IBM's supercomputer platform Watson and is designed as an on-demand transportation solution that passengers can summon with a mobile app. The company claims it can be "printed" to specification in "micro factories" in a matter of hours. They say it is ready to go as soon as regulations allow it to hit the streets. While Local Motors has developed the system to control the driving, IBM's Watson system is used to provide the user interface so passengers can have "conversations" with Olli. "Watson is bringing an understanding to the vehicle," said IBM's Bret Greenstein. "If you have someplace you need to be you can say that in your own words. A vehicle that understands human language, where you can walk in and say, 'I'd like to get to work,' that lets you as a passenger relax and enjoy your journey," he said. The vehicle relies on more than 30 sensors and streams of data from IBM's cloud. Olli will be demonstrated in National Harbor, Maryland, over the next few months with additional trials expected in Las Vegas and Miami.

An anonymous reader writes from a report via Phys.Org: On Tuesday, NATO decided to make cyber operations part of its war domain, along with air, sea, and land operations. NATO Secretary-General Jens Stoltenberg said the decision is not aimed at any one particular country, just that allies need to be able to better defend themselves and respond to computer network attacks. Phys.Org reports: "The decision has been long in coming, particularly amid rising tensions with Russia, which has proven its willingness to launch computer-based attacks against other nations. About a year ago, U.S. Defense Secretary Ash Carter told NATO that it must improve its ability to protect itself before it builds its cyberwar capabilities. And he pledged that the U.S. would used its expertise to help allies assess their vulnerabilities and reduce the risk to their critical infrastructure. In 2014, after years of debate, NATO finally agreed that a cyberattack could rise to the level of a military assault and could trigger the Article 5 protections, which allow the alliance to go to the collective defense of another member that has been attacked. New research from the Pew Research Center shows that cyberattacks are the second most-feared entity among Americans after ISIS.

An anonymous reader quotes a report from Phys.Org: Yale scientists have found a way to greatly boost the intensity of light waves on a silicon microchip using the power of sound. Writing in the journal Nature Photonics, a team led by Peter Rakich describes a new waveguide system that harnesses the ability to precisely control the interaction of light and sound waves. "Silicon is the basis for practically all microchip technologies," said Rakich, who is an assistant professor of applied physics and physics at Yale. "The ability to combine both light and sound in silicon permits us to control and process information in new ways that weren't otherwise possible." Rakich said combining the two capabilities "is like giving a UPS driver an amphibious vehicle -- you can find a much more efficient route for delivery when traveling by land or water." "Figuring out how to shape this interaction without losing amplification was the real challenge," said Eric Kittlaus, a graduate student in Rakich's lab and the study's first author. "With precise control over the light-sound interaction, we will be able to create devices with immediate practical uses, including new types of lasers." The researchers said there are commercial applications for the technology in a number of areas, including fiber-optic communications and signal processing. The system is part of a larger body of research the Rakich lab has conducted for the past five years, focused on designing new microchip technologies for light.

An anonymous reader writes from a report via Gizmodo: The Hubble Space Telescope has released some new numbers indicating that the rate of expansion of our universe is approximately 45.5 miles per second per megaparsec. It calculated this by measuring the distance between 19 faraway galaxies. Conceptually, the calculations show that space is expanding fast enough to essentially double the distance between our galaxy and our nearest neighbors in about 10 billion years. The new Hubble constant, which is 5 to 9 percent higher than previous estimates, does not match estimated expansion rates from the energetic leftovers of the Big Bang, thus causing a headache for cosmologists. It could mean that Einstein's theory of relativity is incomplete and/or there are processes pushing space apart that we have yet to account for.

An anonymous reader quotes a report from Phys.Org: Using a new satellite-based method, scientists at NASA, Environment and Climate Change Canada, and two universities have located 39 unreported and major human-made sources of toxic sulfur dioxide emissions. A known health hazard and contributor to acid rain, sulfur dioxide (SO2) is one of six air pollutants regulated by the U.S. Environmental Protection Agency. The 39 unreported emission sources, found in the analysis of satellite data from 2005 to 2014, are clusters of coal-burning power plants, smelters, oil and gas operations found notably in the Middle East, but also in Mexico and parts of Russia. In addition, reported emissions from known sources in these regions were -- in some cases -- two to three times lower than satellite-based estimates. Altogether, the unreported and underreported sources account for about 12 percent of all human-made emissions of sulfur dioxide -- a discrepancy that can have a large impact on regional air quality, said Chris McLinden, an atmospheric scientist and lead author of the study. The co-author of the study, Nickolay Krotkov, says quantifying the sulfur dioxide bull's-eyes is a two-step process that would not have been possible without an improvement in the computer processing that transforms raw satellite observations from the Dutch-Finnish Ozone Monitoring Instrument aboard NASA's Aura spacecraft into precise estimates of sulfur dioxide concentrations, and the ability to detect smaller concentrations using a new computer program that precisely detects sulfur dioxide that had been dispersed and diluted by winds.

An anonymous reader quotes a report from Phys.Org: A trio of researchers has solved a single math problem by using a supercomputer to grind through over a trillion color combination possibilities, and in the process has generated the largest math proof ever -- the text of it is 200 terabytes in size. The math problem has been named the boolean Pythagorean Triples problem and was first proposed back in the 1980's by mathematician Ronald Graham. In looking at the Pythagorean formula: a^2 + b^2 = c^2, he asked, was it possible to label each a non-negative integer, either blue or red, such that no set of integers a, b and c were all the same color. To solve this problem the researchers applied the Cube-and-Conquer paradigm, which is a hybrid of the SAT method for hard problems. It uses both look-ahead techniques and CDCL solvers. They also did some of the math on their own ahead of giving it over to the computer, by using several techniques to pare down the number of choices the supercomputer would have to check, down to just one trillion (from 10^2,300). Still the 800 processor supercomputer ran for two days to crunch its way through to a solution. After all its work, and spitting out the huge data file, the computer proof showed that yes, it was possible to color the integers in multiple allowable ways -- but only up to 7,824 -- after that point, the answer became no. Is the proof really a proof if it does not answer why there is a cut-off point at 7,825, or even why the first stretch is possible? Does it really exist?

mspohr quotes a report from Phys.Org: A new study published in the Journal Nature Climate Change shows our precarious climate condition: "Using up all known fossil fuel reserves would render Earth even more unlivable than scientists had previously projected, researchers said on Monday. Average temperatures would climb by up to 9.5 degrees Celsius (17 degrees Fahrenheit) -- five times the cap on global warming set at climate talks in Paris in December, they reported. In the Arctic region -- already heating at more than double the global average -- the thermometer would rise an unimaginable 15 C to 20 C." This would make most of Earth uninhabitable to humans (although the dinosaurs seemed to do fine with it 65 million years ago). The report also stated that if fossil fuel trends go unchanged, ten times the 540 billion tons of carbon emitted since the start of industrialization would be reached near the end of the 22nd century. For comparison, "older models had projected that depleting fossil fuel reserves entirely would heat the planet by 4.3 C to 8.4 C. The new study revises this to between 6.4 C and 9.5 C," writes Phys.Org.

Slashdot reader sosume writes: Scientists at Osaka University have created a new method to use sunlight to turn seawater into hydrogen peroxide which can then be used in fuel cells to generate electricity. It's the first photocatalytic method of H2O2 production that achieves a high enough efficiency so that the H2O2 can be used in a fuel cell.
It's easier and safer to transport liquid H2O2, according to the article, and while its total efficiency is much lower than conventional solar cells, the researchers hope to get better results by using better materials.

An anonymous reader quotes a report from Phys.Org: The International Space Station, the space laboratory that showcases cooperation between Russia and the United States, on Monday orbited Earth for the 100,000th time, Russian mission control said. Traveling at an altitude of about 250 miles (400 kilometers) and a speed of about 17,500 miles (28,000 kilometers) per hour, the space station circles the Earth once every 90 minutes. The ISS has now traveled 2.6 billion miles "or about the distance of 10 round trips to Mars," NASA said on the station's official Twitter feed. From two modules, it has grown to 15 modules, occupying a space the size of a football pitch and represents around $100 billion in investment. "Such a long lifespan of the ISS proves that mankind has the necessary technologies for constant presence in orbit, that we have the potential for further space exploration," said Matyushin.

mdsolar quotes a report from Phys.Org: For nearly 80 years, nuclear fission has awaited a description within a microscopic framework. In the first study of its kind, scientists collaborating from the University of Washington, Warsaw University of Technology (Poland), Pacific Northwest National Laboratory, and Los Alamos National Laboratory, developed a novel model to take a more intricate look at what happens during the last stages of the fission process. Using the model, they determined that fission fragments remain connected far longer than expected before the daughter nuclei split apart. Moreover, they noted the predicted kinetic energy agreed with results from experimental observations. This discovery indicates that complex calculations of real-time fission dynamics without physical restrictions are feasible and opens a pathway to a theoretical microscopic framework with abundant predictive power.

An anonymous reader quotes a report from Phys.Org: Researchers of the Max Planck Institute for Chemistry and the Cyprus Institute in Nicosia have calculated that the Middle East and North Africa could become so hot that human habitability is compromised. The goal of limiting global warming to less than two degrees Celsius, agreed at the recent UN climate summit in Paris, will not be sufficient to prevent this scenario. The result is deeply alarming: Even if Earth's temperature were to increase on average only by two degrees Celsius compared to pre-industrial times, the temperature in summer in these regions will increase more than twofold. This means that during hot days temperatures south of the Mediterranean will reach around 46 degrees Celsius (approximately 114 degrees Fahrenheit) by mid-century. Such extremely hot days will occur five times more often than was the case at the turn of the millennium. In combination with increasing air pollution by windblown desert dust, the environmental conditions could become intolerable and may force people to migrate.

mdsolar quotes a report from Phys.Org: Belgium is to provide iodine pills to its entire population of around 11 million people to protect against radioactivity in case of a nuclear accident, the health minister was quoted as saying Thursday. The move comes as Belgium faces growing pressure from neighboring Germany to shutter two ageing nuclear power plants near their border due to concerns over their safety. Iodine pills, which help reduce radiation build-up in the human thyroid gland, had previously only been given to people living within 20 kilometres (14 miles) of the Tihange and Doel nuclear plants. Health Minister Maggie De Block was quoted by La Libre Belgique newspaper as telling parliament that the range had now been expanded to 100 kilometers, effectively covering the whole country. The health ministry did not immediately respond to AFP when asked to comment. The head of Belgium's French-speaking Green party, Jean-Marc Nollet, backed the measures but added that "just because everyone will get these pills doesn't mean there is no longer any nuclear risk," La Libre reported. Belgium's creaking nuclear plants have been causing safety concerns for some time after a series of problems ranging from leaks to cracks and an unsolved sabotage incident. Yesterday, a nuclear plant in Germany was reportedly infected with a computer virus.

James Hakner, writing for Phys.org: The worldwide reliance on burning fossil fuels to create energy could be phased out in a decade, according to an article published by a major energy think tank in the UK. Professor Benjamin Sovacool, Director of the Sussex Energy Group at the University of Sussex, believes that the next great energy revolution could take place in a fraction of the time of major changes in the past. But it would take a collaborative, interdisciplinary, multi-scalar effort to get there, he warns. And that effort must learn from the trials and tribulations from previous energy systems and technology transitions. In a paper published in the peer-reviewed journal Energy Research & Social Science, Professor Sovacool analyses energy transitions throughout history and argues that only looking towards the past can often paint an overly bleak and unnecessary picture. Moving from wood to coal in Europe, for example, took between 96 and 160 years, whereas electricity took 47 to 69 years to enter into mainstream use. But this time the future could be different, he says -- the scarcity of resources, the threat of climate change and vastly improved technological learning and innovation could greatly accelerate a global shift to a cleaner energy future.There's no doubt that we will soon reach a point wherein solar and wind will be readily available and feasible to the vast majority but, the decade timeframe feels like a stretch. We must acknowledge the financial and political challenges that we face today. Private and government-backed companies have invested billions of dollars into plants that turn fossil fuels into electricity. Ditching these plants means losing a lot of capital and owing investors with plenty of explanations. There are several forces at play here.

HughPickens.com writes: Discovery Magazine reports that researchers at North Carolina State University have developed a super strong armor material that literally turns bullets to dust upon impact. The armor plating is made in part from composite metal foams, or CMFs, which are both lighter and stronger than traditional metal plating used in body and vehicle armor. The armor -- only an inch thick -- features a ceramic strike face, Kevlar backing, and CMFs in the energy-absorbing middle layer. "We could stop the bullet at a total thickness of less than an inch, while the indentation on the back was less than 8 millimeters," says Afsaneh Rabiei. "To put that in context, the NIJ standard allows up to 44 millimeters indentation in the back of an armor." CMFs are very effective at shielding X-rays, gamma rays and neutron radiation. Other applications include space exploration and shipping nuclear waste which both require a material to be not only light and strong, but also capable of withstanding extremely high temperatures and blocking radiation. A video shows a 7.62 x 63 millimeter M2 armor-piercing projectile that was fired using standard testing procedures established by the Department of Justice for evaluating armor types.

An anonymous reader cites a report on Phys.org: An international team of researchers have found evidence of a mysterious new state of matter, first predicted 40 years ago, in a real material. This state, known as a quantum spin liquid, causes electrons -- thought to be indivisible building blocks of nature -- to break into pieces. The researchers, including physicists from the University of Cambridge, measured the first signatures of these fractional particles, known as Majorana fermions, in a two-dimensional material with a structure similar to graphene. Their experimental results successfully matched with one of the main theoretical models for a quantum spin liquid, known as a Kitaev model. The results are reported in the journal Nature Materials. Quantum spin liquids are mysterious states of matter which are thought to be hiding in certain magnetic materials, but had not been conclusively sighted in nature. The observation of one of their most intriguing properties -- electron splitting, or fractionalisation -- in real materials is a breakthrough. The resulting Majorana fermions may be used as building blocks of quantum computers, which would be far faster than conventional computers and would be able to perform calculations that could not be done otherwise.

An anonymous reader quotes a report from Washington Post: Most of the time when we talk about silly scientific papers related to alien life, we're talking about crazy ideas for how to find aliens. But a new study in the Monthly Notices of the Royal Astronomical Society proposes a way of hiding from aliens. Humans are so fickle. A lot of our search for Earth-like planets (and, by extension, for life as we know it) hinges on transiting planets. These are planets that pass in front of their host star in such a way that the transit is visible from our perspective. The movement of the planet in front of the host star makes the light from that star dim or flicker, and we can use that to determine all sorts of things about distant worlds -- including how suitable they may be for life. Professor David Kipping and graduate student Alex Teachey, both of Columbia University, determined how much laser light it would take to mask the dimming caused by our planet transiting the sun, or cloak the atmospheric signatures associated with biological activity, [such as oxygen, which is achievable with a peak laser power of just 160 kW per transit]. From the report: "According to their math, it would take 10 continuous hours of shining a 30 MW laser once a year to eliminate the transit signal in visible light. Actually replicating every wavelength of light emitted by the sun would take about 250 MW of power."

Phys.org is reporting the discovery of a rare planet with three different stars in its sky, two distant stars orbiting each other and a closer third star which would appear 40 times as large as our sun. Two robotically controlled telescopes -- one in Arizona, one in South Africa -- determined the gas giant planet KELT-4Ab was orbiting two separate stars which had always appeared to be one. The brighter third star will make it easier to study both the star itself and the nearby planet. "Known planets with three stars appearing in their sky are rare," reports Phys.org," adding "this new discovery is just the fourth, and it has caused excitement in the space community because it is the closest one yet, allowing for a better look than has been possible with the other finds."

"The environment in which this planet exists is quite spectacular," add Maciej Konacki from the California Institute of Technology, telling Space.com that "With three suns, the sky view must be out of this world -- literally and figuratively."

The U.S. Department of Defense is investing in a $320 million project to create "smart garments" that can protect soldiers while monitoring their environment -- for example, uniforms that can change color or become invisible to night-vision goggles. Other possibilities include tents which generate electricity, uniforms which detect chemical or nuclear contamination, and parachutes that can detect tearing, according to Phys.org. "Key to the plan is a technical ingredient: embedding a variety of tiny semiconductors and sensors into fabrics that can see, hear, communicate, store energy, warm or cool a person or monitor the wearer's health," reports the New York Times, calling it "a new frontier for the Internet of Things." The Pentagon is joining more than 30 universities, 49 companies (including Intel) and the state governments of Massachusetts and Georgia, and they're hoping the "Advanced Functional Fabrics of America" project establishes two dozen incubators for startups and creates 50,000 jobs over the next 10 years by streamlining the implementation of the smart fabrics in America's textile mills.

An anonymous reader writes from an article on Phys.org: NASA said it will test the effects of a large fire in space by setting off a blaze inside an orbiting unmanned space craft. NASA has set off tiny controlled fires in space in the past, but never tested how large flames react inside a space capsule in space. The goal is to measure the size of the flames, how quickly they spread, the heat output, and how much gas is emitted. The results of this experiment, dubbed Saffire-1, will determine how much fire resistance is needed in the ultra-light material used in the spacecraft and the astronaut's gear. It will also help NASA build better fire detection and suppression systems for their spaceships, and study how microgravity and limited amounts of oxygen affect the size of the flames.

mdsolar writes: Extreme weather events like floods, heat waves and droughts can devastate communities and populations worldwide. Recent scientific advances have enabled researchers to confidently say that the increased intensity and frequency of some, but not all, of these extreme weather events is influenced by human-induced climate change, according to an international National Academies of Science, Engineering, and Medicine report released March 11. "In the past, many scientists have been cautious of attributing specific extreme weather events to climate change. People frequently ask questions such as, 'Did climate change cause Hurricane Sandy?' Science can't answer that because there are so many relevant factors for hurricanes. What this report is saying is that we can attribute an increased magnitude or frequency of some extreme weather events to climate change,' said David Titley, professor of practice in Penn State's Department of Meteorology and founding director of Penn State's Center for Solutions to Weather and Climate Risk, who chaired the committee that wrote the report.

Reader chasm22 points to a Phys.org report about the second straight loss of Lee Sedol to AlphaGo, the program developed by Google's DeepMind unit. The human Go champion, Sedol found himself "speechless" after the showdown on Thursday. The human versus machine face-off lasted more than four hours, which to Sedol's credit is a slight improvement over his previous match, which had ended with him resigning nearly half an hour remaining on the clock. "It was a clear loss on my part," Sedol said at a press conference on Thursday. "From the beginning there was no moment I thought I was leading." Demis Hassabis, who heads Google's DeepMind, said, "Because the number of possible Go board positions exceeds the number of atoms in the universe, top players rely heavily on their intuition." Sedol will battle Google's AlphaGo again on Saturday, Sunday, and Tuesday.

mdsolar writes: France is to close down its oldest nuclear power plant, at the center of a row with neighboring Germany and Switzerland, by the end of this year, a green minister said Sunday. "The timeline is one the president has repeated to me several times, it's 2016," said Emmanuelle Cosse, who was named to President Francois Hollande's cabinet last month, referring to the Fessenheim plant. Cosse was speaking to French media after a row sparked Friday when Germany demanded that France close down Fessenheim following reports that a 2014 incident there was worse than earlier portrayed. France's Nuclear Safety Agency said that safety at the plant was "overall satisfactory" but that the government's energy policy "could lead to different choices" regarding the facility, which is near the German and Swiss borders. It said there was "no need" to shut the plant from a nuclear safety point of view. France has promised to cut reliance on nuclear energy from more than 75 percent to 50 percent by shutting 24 reactors by 2025, while stepping up reliance on renewable energy.

Dthief writes: Splitting water is a two-step process, and in a new study, researchers have performed one of these steps (reduction) with 100% efficiency. The results shatter the previous record of 60% for hydrogen production with visible light, and emphasize that future research should focus on the other step (oxidation) in order to realize practical overall water splitting. The main application of splitting water into its components of oxygen and hydrogen is that the hydrogen can then be used to deliver energy to fuel cells for powering vehicles and electronic devices. The process involves exposing the water to a mass of platinum-tipped nanorods, with visible light driving the reaction. The 100% efficiency refers to the photon-to-hydrogen conversion efficiency, and it means that virtually all of the photons that reach the photocatalyst generate an electron, and every two electrons produce one H2 molecule. At 100% yield, the half-reaction produces about 100 H2 molecules per second (or one every 10 milliseconds) on each nanorod, and a typical sample contains about 600 trillion nanorods.

Paleontologists in Argentina have announced the discovery of a major Jurassic-era fossil site four years after it was first discovered. The site, which spans 23,000 square miles (60,000 square kilometers) in Patagonia, southern Argentina, came to light this week with the publication of a report in the journal Ameghiniana. "No other place in the world contains the same amount and diversity of Jurassic fossils," said geologist Juan Garcia Massini of the Regional Center for Scientific Research and Technology Transfer (CRILAR). The fossils are so well preserved, that researchers say each rock extracted from the site could possibly open the door to a new discovery.

An anonymous reader writes: Facebook has announced that it will donate 25 high-end GPU servers to institutions in the European Union which are engaged in research on artificial intelligence. The first recipient will be a professor researching image analysis of breast cancer and the chemical modelling of molecules. The initiative, which is currently inviting suitable applicants from the EU, comes through the Facebook AI Research (FAIR) program, and the GPU donations will come with technical support and on-site collaboration. Though no specifications on the machines involved have been revealed, it seems likely that they will be some variant on Big Sur.

According to a study published today, an international team of scientists has for the first time managed to identify the location of a fast radio burst. FRBs are bright radio flashes that generally last for a few milliseconds. While their origin is unknown, the results are a missing distribution of matter in the universe. Now, using a combination of radio and optical telescopes, scientists have found the FRB. According to Benjamin Stappers, Professor of Astrophysics at the University of Manchester, "Discovering more FRBs will allow us to do even more detailed studies of the missing matter and perhaps even study dark energy."

MarkWhittington writes: Phys.Org reports that the ambitions of the Russian Space Agency continue to exceed its financial wherewithal to carry them out. A Russian rocket is due to launch the first element of the European ExoMars program, which consists of the Trace Gas Orbiter and the Italian-built Schiaparelli lander, in March. Both are due to arrive at Mars in October. After that, Russia's space exploration plans are a bit hazy, hobbled by a lack of money.

If President Obama's recently released federal budget request is approved for the fiscal year beginning Oct. 1, 2016, next year will be the first in a bold 10-year plan by NASA Aeronautics to achieve huge goals in reducing fuel use, emissions, and noise by the way aircraft are designed, and the way they operate in the air and on the ground.

One exciting piece of this 10-year plan is New Aviation Horizons -- an ambitious undertaking by NASA to design, build and fly a variety of flight demonstration vehicles, or "X-planes." The demos included advancements in lightweight composite materials that are needed to create revolutionary aircraft structures, an advanced fan design to improve propulsion and reduce noise in jet engines, designs to reduce noise from wing flaps and landing gear, shape-changing wing flaps, and even coating to prevent bug residue buildup on wings.

According to a study published on Monday, diminutive humans that died out on an Indonesian island some 15,000 years ago were not homo sapiens, but rather a different species. The Homo floresiensis, known as "hobbits" since they looked like small humans, were found to be a distinct species based on the layers in the specimens' skulls. This discovery could be the end of one of the most heated arguments in anthropology.

New submitter Namarrgon writes: Transistors made with Ashutosh Tiwari's new semiconducting material could lead to computers and smartphones that are more than 100 times faster than regular devices. While researchers in this field have recently discovered new types of 2D material such as graphene, molybdenun disulfide and borophene, they have been materials that only allow the movement of N-type, or negative, electrons. In order to create an electronic device, however, you need semiconductor material that allows the movement of both negative electrons and positive charges known as "holes." The tin monoxide material discovered by Tiwari and his team at the University of Utah is the first stable P-type 2D semiconductor material ever in existence.

Namarrgon writes: Using nanostructured glass, scientists from the University of Southampton's Optoelectronics Research Centre (ORC) have developed the recording and retrieval processes of five dimensional (position, size, and orientation) digital data by femtosecond laser writing. The storage allows unprecedented properties including 360 TB/disc data capacity, thermal stability up to 1,000ÂC and virtually unlimited lifetime at room temperature (13.8 billion years at 190ÂC) opening a new era of eternal data archiving.

HughPickens.com writes: Violence has always been part of human behavior, but the origins of war are hotly debated. Some experts see it as deeply rooted in evolution, pointing to violent confrontations among groups of chimpanzees as clues to an ancestral predilection while others emphasize the influence of complex and hierarchical human societies, and agricultural surpluses to be raided. Now James Gorman writes in the NY Times that scientists have discovered a site in Africa dated about 10,000 years ago where a group of hunter-gatherers attacked and slaughtered another, leaving the dead with crushed skulls, embedded arrow or spear points, and other devastating wound. It's not clear that anyone was spared at the Nataruk massacre. Of the 27 individuals found, eight were male and eight female, with five adults of unknown gender. The site also contained the partial remains of six children. Twelve of the skeletons were in a relatively complete state, and ten of those showed very clear evidence that they had met a violent end. In the paper, the researchers describe "extreme blunt-force trauma to crania and cheekbones, broken hands, knees and ribs, arrow lesions to the neck, and stone projectile tips lodged in the skull and thorax of two men." Four of them, including a late-term pregnant woman, appear to have had their hands bound. "These human remains record the intentional killing of a small band of foragers with no deliberate burial, and provide unique evidence that warfare was part of the repertoire of inter-group relations among some prehistoric hunter-gatherers," says Dr Marta Mirazon.

The killers carried weapons they wouldn't have used for hunting and fishing, including clubs of various sizes and a combination of close-proximity weapons like knives and distance weapons, including the arrow projectiles she calls a hallmark of inter-group conflict. " This suggests premeditation and planning," says Mirazon Lahr. Other, isolated examples of period violence have previously been found in the area, and those featured projectiles crafted of obsidian, which is rare in the area but also seen in the Nataruk wounds. This suggests that the attackers may have been from another area, and that multiple attacks were likely a feature of life at the time. "This implies that the resources the people of Nataruk had at the time were valuable and worth fighting for, whether it was water, dried meat or fish, gathered nuts or indeed women and children. This shows that two of the conditions associated with warfare among settled societies—control of territory and resources—were probably the same for these hunter-gatherers, and that we have underestimated their role in prehistory."

mdsolar writes with news that Belgium's decision to restart a reactor at its Tihange nuclear power plant and its aging Doel plant have some of its European neighbors uneasy. Phys.org reports: "As the two cooling towers at Belgium's Doel nuclear power belch thick white steam into a wintry sky, people over the border in the Dutch town of Nieuw-Namen are on edge. They are part of a groundswell of concern in the Netherlands, Germany and Luxembourg over the safety of Belgium's seven aging reactors at Doel and at Tihange, further to the south and east. 'I'm happy Holland, Germany and Luxembourg are reacting because they (officials) don't listen to you and me,' butcher Filip van Vlierberge told AFP at his shop in Nieuw-Namen, where people can see the Doel plant. Benedicte, one of his customers, nodded in agreement. Van Vlierberge said he was particularly uneasy with the Belgian government's decision in December to extend the lives of 40-year-old reactors Doel 1 and Doel 2 until 2025 under a deal to preserve jobs and invest in the transition to cleaner energy."

jones_supa writes: More people in Europe are dying than are being born, according to a new report co-authored by a Texas A&M University demographer. In contrast, births exceed deaths, by significant margins, in Texas and elsewhere in the United States, with few exceptions. The researchers find that in Europe, deaths exceeded births in most of the counties of Germany, Hungary, Croatia, Romania, Bulgaria and the Czech Republic, as well as in Sweden and the Baltic States. Further south, natural decrease is found occurring in the majority of the counties of Greece, Portugal and Italy. More births than deaths (natural increase) is widespread in Ireland, Cyprus, Iceland, Lichtenstein and Luxembourg. "Natural decrease is much more common in Europe than in the U.S because its population is older, fertility rates are lower and there are fewer women of child-bearing age," the researchers explain. "Natural decrease is a major policy concern because it drains the demographic resilience from a region diminishing its economic viability and competitiveness."