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coondoggie writes "One of the six giant — 27 feet across, 20 ton — circular mirrors that will be part of the 4,000 sq. ft., Giant Magellan Telescope that ultimately look for stars, galaxies and black holes has been polished and completed — now for the other five. The mirrors will form the heart of the 25-meter Giant Magellan Telescope, and when complete will provide more than 380 square meters, or 4,000 square feet, of light-collecting area." This is a big project, not just a big mirror. From the article: "At the Carnegie Institution for Science's Las Campanas Observatory in northern Chile, earthmovers are completing the removal of 4 million cubic feet of rock to produce a flat platform for the telescope and its supporting buildings. The telescope is scheduled to come online in about 10 years.
Tator Tot writes "Grape pomace, the mashed up skins and stems left over from making wine and grape juice, could serve as a good starting point for ethanol production, according to a new study (from the Journal of Agriculture and Food Chemistry). Due to growing interest in biofuels, researchers have started looking for cheap and environmentally sustainable ways to produce such fuels, especially ethanol. Biological engineer Jean VanderGheynst at the University of California, Davis, turned to grape pomace, because winemakers in California alone produce over 100,000 tons of the fruit scraps each year, with much of it going to waste."
An anonymous reader writes "Neal Stephenson's 1999 Cryptonomicon was a great yarn. It was also a thoroughly enjoyable (and too short) romp through some mathematics. Where can I find more of that? I should say that I don't want SF — at least none of the classic SF I read voraciously in the 70s; it's just not the same thing, and far too often just a puppet-theatre for an author's philosophical rant. Has any author managed to hit the same vein as Stephenson did? (Good non-fiction math-reads are also gratefully accepted. What have you got?)"
eldavojohn writes "The global warming debate has left much to be desired in the realm of logic and rationale. One particular researcher, Michael E. Mann, has been repeatedly attacked for his now infamous (and peer reviewed/independently verified) hockey stick graph. It has come to the point where he is now suing for defamation over being compared to convicted serial child molester Jerry Sandusky. Articles hosted by defendants and written by defendant Rand Simberg and defendant Mark Steyn utilize questionable logic for implicating Michael E. Mann alongside Jerry Sandusky with the original piece, concluding, 'Michael Mann, like Joe Paterno, was a rock star in the context of Penn State University, bringing in millions in research funding. The same university president who resigned in the wake of the Sandusky scandal was also the president when Mann was being (whitewashed) investigated. We saw what the university administration was willing to do to cover up heinous crimes, and even let them continue, rather than expose them. Should we suppose, in light of what we now know, they would do any less to hide academic and scientific misconduct, with so much at stake?' Additionally, sentences were stylized to blend the two people together: 'He has molested and tortured data in the service of politicized science that could have dire economic consequences for the nation and planet.' One of the defendants admits to removing 'a sentence or two' of questionable wording. Still, as a public figure, Michael E. Mann has an uphill battle to prove defamation in court."
MarkWhittington writes "NASA engineers at the Marshall Spaceflight Center in Huntsville, Ala., are building a mockup of what appears to be a deep space habitat, though it could also be part of an interplanetary spacecraft. The purpose is to do human factors studies to find out how to sustain astronauts on lengthy deep space missions."
Kittenman writes "After 38 years (1974 - 2012) the BBC's CEEFAX service has ceased transmission. The service gave on-line up-to-date textual information (albeit in condensed form) to TV viewers in the pre-Internet era and afterwards. Its final broadcast signed off with, 'Goodbye, cruel world.' '... the real impetus for viewers came when BBC Television decided to use a selection of Ceefax pages, accompanied by music, before the start of programming each day. Initially called Ceefax AM and Ceefax In Vision, the Pages From Ceefax "programme" continued for 30 years, being broadcast overnight on BBC Two until this week. As viewers got a small taste of what Ceefax had to offer, millions of Britons during the 1980s invested in new teletext-enabled TV sets which gave them access to the full Ceefax service, which by now included recipe details for dishes prepared on BBC cookery shows, share prices, music reviews and an annual advent calendar.' An British ex-PM (John Major) said, 'From breaking global news to domestic sports news, Ceefax was speedy, accurate and indispensable. It can be proud of its record.'"
ananyo writes "In this age of social media, innovators eager to develop high-tech products are tapping into the wisdom of crowds to solve problems, with crowdsourcing sites such as Innocentive and Kaggle offering cash prizes for answers to science or data questions. The launch this week of a site called Marblar is turning this model on its head. Marblar gives scientists a space to tout solutions that have yet to find their problem (it's not in beta, despite the redirect). Members, who can come from any background, are invited to publicly discuss potential uses for patented discoveries made in research laboratories that as yet may not have led to real-world applications. Every suggestion at Marblar is posted on a public forum alongside video interviews with the scientists and explanations of their work. Website visitors suggest applications and vote them up and down, and the scientists behind the discovery are encouraged to take part in the discussion. Popular suggestions are recognized with a points system (denoted by marbles — hence the name) and, in some cases, small cash prizes. A trial run seems to have been pretty successful."
CelestialScience writes "A recycling technique has enabled a quantum computer to carry out a quantum calculation known as Shor's algorithm on a larger number than ever before. The benchmark algorithm exploits quantum mechanics to simplify the factorization of numbers into their prime components — a hard task for classical computers when the numbers get large. Until now, the largest number factorized using Shor's algorithm was 15. Now Anthony Laing at the University of Bristol, UK and colleagues report in Nature Photonics that they used a recycled photon to factorize 21 — still far too small and trivial to spook cryptographers, who rely on the difficulty of factorizing large numbers for their widely-used techniques. But a record nonetheless."
Hugh Pickens writes "Maryn McKenna writes in Scientific American that the standard autopsy is becoming increasingly rare for cost reasons, religious objections, and because autopsies reveal medical mistakes, making doctors and hospitals uncomfortable. Researchers in several countries have been exploring the possibility that medical imaging might substitute a 'virtual autopsy' for the more traditional variety. 'So few autopsies are being done now that many medical students get out of school never having seen one,' says Gregory Davis. 'And yet in medicine, autopsy is the most powerful quality-control technique that we have and the reason we know as much as we do about many diseases and injuries.' The process, dubbed 'virtopsy,' combines MRI and CT scanning with computer-aided 3-D reconstruction to prove causes of death for difficult cases, which included drownings, flaming car crashes, and severe injuries to the skull and face. Since 2004 the U.S. military has performed x-rays and CT scans on the bodies of every service member killed where the armed forces have exclusive jurisdiction — that is, not just on battlefields abroad but on U.S. bases as well. 'It allows us to identify any foreign bodies present, such as projectiles,' says Edward Mazuchowski. 'X-rays give you the edge detail of radio-opaque or metallic objects, so you can sort out what the object might be, and CT, because it is three-dimensional, shows you where the object is in the body.' A study conducted among intensive care unit patients in Germany compared diagnoses made before death with the results of both traditional and virtual autopsy in 47 patients and with only virtual autopsy in another 115 whose families refused standard autopsy. Virtual autopsies confirmed 88 percent of diagnoses made before death, not far behind the 93 percent rate for traditional postmortem exams. 'The findings so far are mixed,' says Elizabeth Burton of Johns Hopkins University. Virtual autopsy, she says, 'is better for examining trauma, for wartime injuries, for structural defects. But when you start getting into tumors, infections and chronic conditions, it's not as good, and I doubt it will ever be better.'"
The Bad Astronomer writes "NASA's NuSTAR satellite, designed to detect cosmic X-rays, detected a flare of high-energy emission coming from the Milky Way galaxy's central supermassive black hole. The X-rays were the dying gasp of a small gas cloud being torn apart, heated to a hundred million degrees, and then falling into the black hole itself. Events like this are relatively uncommon, so it's fortunate NuSTAR happened to be observing the black hole when it flared."
menno_h writes "In January 1665, Samuel Pepys wrote in his diary that he stayed up till two in the morning reading a best-selling page-turner, a work that he called 'the most ingenious book I read in my life.' It was not a rousing history of English battles or a proto-bodice ripper. It was filled with images: of fleas, of bark, of the edges of razors. The book was called Micrographia. It provided the reading public with its first look at the world beyond the naked eye. Its author, Robert Hooke, belonged to a brilliant circle of natural philosophers who — among many other things — were the first in England to make serious use of microscopes as scientific instruments. They were great believers in looking at the natural world for themselves rather than relying on what ancient Greek scholars had claimed. Looking under a microscope at the thousands of facets on an insect's compound eye, they saw things at the nanoscale that Aristotle could not have dreamed of. A razor's edge became a mountain range. In the chambers of a piece of bark, Hooke saw the first evidence of cells. Micrographia is is available on Google Books now."
derekmead writes "College students' voracious appetite for study drugs like Adderall is widespread enough that it was one of the main topics of a marquee lecture on neuroethics at Society for Neuroscience's 2012 conference called 'The Impact of Neuroscience on Society: The Neuroethics of "Smart Drugs."' It was excellent stuff by Barbara Sahakian, faculty at Department of Psychicatry at the University of Cambridge. Her focus is on prescription drugs for diseases and conditions like Alzheimer's, attention deficit hyperactivity disorder, and depression, with the fundamental goal of understanding the neural basis of dysfunction to develop better drugs. Specifically, she wants to create drugs with no risk for substance abuse which means drugs that have no effect on dopamine. The true goal then of her research, fundamentally and briefly, is to repair the impaired. But doing so brings us to the discussion of how much repair is ethical when the repair can be disseminated to people who don't actually need it. Divisions abound on what is to be done. Some experts say that if people can boost their abilities to make up for what mother nature didn't give them, what's wrong with that? Others say that people shouldn't be using these drugs because they're designed for people with serious problems who really need help. So another question for the ethicists is whether cognitive enhancers will ultimately level the playing field or juice the opposing team."
New submitter monkeyhybrid writes "The Planetary Society's Emily Lakdawalla reports on the most detailed images of Uranus ever taken. The infrared sensitivity of the ground based Keck II telescope's NIRC2 instrument enabled astronomers to see below the high level methane based atmosphere that has hampered previous observations, and with unprecedented clarity. If you ever thought Uranus was a dull blue looking sphere then look again; you could easily mistake these images for being of Jupiter!"
ananyo writes "'Who told me to get out?' asked a diver, surfacing from a tank in which a whale named NOC lived. The beluga's caretakers had heard what sounded like garbled phrases emanating from the enclosure before, and it suddenly dawned on them that the whale might be imitating the voices of his human handlers. The outbursts began in 1984 and lasted for about four years, until NOC hit sexual maturity. NOC likely learned to imitate humans by listening to them speak underwater and on the surface. The whale's human-like calls are several octaves lower than normal whale calls, a similar pitch to human speech. Researchers trained NOC to 'speak' on command, and determined that he makes the sounds by increasing the pressure of the air that courses through his nasal cavities. They think that he then modified the sounds by manipulating the shape of his phonic lips, small vibrating structures that sit above each nasal cavity. A recording of NOC's speech is embedded in the story. He sounds remarkably like a kazoo."
caseyb89 writes "Open source projects Nginx, Railo CMS, and GlusterFS are powering Mars Curiosity's big data crunching. 'Taken together, the combination of cloud and open source enabled the Curiosity mission to provide beautiful images in real time, not months delayed; at high quality, not "good enough" quality. A traditional, proprietary approach would not have been this successful, given the short time to deployment and shifting requirements that necessitated the ultimate in agility and flexibility.'"
An anonymous reader notes that the BBC reports "Six Italian scientists and an ex-government official have been sentenced to six years in prison over the 2009 deadly earthquake in L'Aquila. A regional court found them guilty of multiple manslaughter. Prosecutors said the defendants gave a falsely reassuring statement before the quake, while the defence maintained there was no way to predict major quakes. The 6.3 magnitude quake devastated the city and killed 309 people." The scientists were first charged more than two years ago.
cylonlover writes "Geostationary satellites cost a fortune and, despite their sophistication, they break down or eventually run out of propellant to keep them oriented. This is unfortunate when the nearest garage is back on Earth, so NASA wants to remedy this with an orbital version of roadside service. The space agency is developing a service robot that can visit ailing satellites and refuel or even repair them on the spot. The refueling program is already at an advanced enough stage that a technology demonstrator called the Robotic Refueling Mission (RRM) was delivered to the International Space Station (ISS) in July of last year. The RRM was installed on a temporary platform outside the station. NASA's Goddard Space Flight Center wants a robot capable of carrying out what it calls the five 'Rs' – refueling, repositioning, remote survey, component replacement or repairing – on any satellite that might require its services."
concealment sends this quote from an article at The Physics of Baseball "This clip from Game 4 shows Marco Scutaro hitting the ball right near the tip of the barrel. The amplitude of the resulting vibration is so large that the bat breaks and the ball weakly dribbles off the bat. Note that the bat splinters toward the pitcher. The reason is that when the ball hits the barrel tip, the barrel of the bat bends backward toward the catcher and the center of the bat bulges forward toward the pitcher. That is the natural shape of the fundamental vibrational mode of the bat. Since the fracture occurs near the center which is bulging outward, that is how the bat splinters, as the wood fibers on the pitcher side of the bat are stretched to the breaking point. If the ball had impacted the bat near the center, the center would have bulged toward the catcher, as in the Yadier Molina clip. Had the vibrational amplitude been strong enough in the Molina case, the bat would have splintered toward the catcher."
Meshach writes "Research has suggested that human activity triggered an earthquake in Spain that killed nine and injured over three hundred. Drilling deeper and deeper wells to water crops over the past 50 years were identified as the culprit by scientist who examined satellite images of the area. It was noted that even without the strain caused by water extraction, a quake would likely have occurred at some point in the area but the extra stress of pumping vast amounts of water from a nearby aquifer may have been enough to trigger a quake at that particular time and place."