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New NRC Rule Supports Indefinite Storage of Nuclear Waste

samzenpus posted 38 minutes ago | from the can-I-leave-this-here? dept.

Government 4

mdsolar writes in with news about a NRC rule on how long nuclear waste can be stored on-site after a reactor has shut down. The five-member board that oversees the Nuclear Regulatory Commission on Tuesday voted to end a two-year moratorium on issuing new power plant licenses. The moratorium was in response to a June 2012 decision issued by the U.S. Court of Appeals for the District of Columbia that ordered the NRC to consider the possibility that the federal government may never take possession of the nearly 70,000 metric tons of spent nuclear fuel stored at power plant sites scattered around the country. In addition to lifting the moratorium, the five-member board also approved guidance replacing the Waste Confidence Rule. "The previous Waste Confidence Rule determined that spent fuel could be safely stored on site for at least 60 years after a plant permanently ceased operations," said Neil Sheehan, spokesman for the NRC. In the new standard, Continued Storage of Spent Nuclear Fuel Rule, NRC staff members reassessed three timeframes for the storage of spent fuel — 60 years, 100 years and indefinitely.

Underground Experiment Confirms Fusion Powers the Sun

Soulskill posted 1 hour ago | from the if-you-lost-a-bet,-go-pay-up dept.

Science 37

sciencehabit writes: Scientists have long believed that the power of the sun comes largely from the fusion of protons into helium, but now they can finally prove it (abstract). An international team of researchers using a detector buried deep below the mountains of central Italy has detected neutrinos—ghostly particles that interact only very reluctantly with matter—streaming from the heart of the sun. Other solar neutrinos have been detected before, but these particular ones come from the key proton-proton fusion reaction that is the first part of a chain of reactions that provides 99% of the sun's power.

Eye Problems From Space Affect At Least 21 NASA Astronauts

Soulskill posted 3 hours ago | from the need-gravity-to-balance-eye-fusion dept.

NASA 68

SternisheFan sends this report from Universe Today: How does microgravity affect your health? One of the chief concerns of NASA astronauts these days is changes to eyesight. Some people come back from long-duration stays in space with what appears to be permanent changes, such as requiring glasses when previously they did not. And the numbers are interesting. A few months after NASA [said] 20% of astronauts may face this problem, a new study points out that 21 U.S. astronauts that have flown on the International Space Station for long flights (which tend to be five to six months) face visual problems. These include "hyperopic shift, scotoma and choroidal folds to cotton wool spots, optic nerve sheath distension, globe flattening and edema of the optic nerve," states the University of Houston, which is collaborating with NASA on a long-term study of astronauts while they're in orbit.

Limiting the Teaching of the Scientific Process In Ohio

Unknown Lamer posted 8 hours ago | from the thinking-leads-to-questioning dept.

Education 411

frdmfghtr (603968) writes Over at Ars Technica, there's a story about a bill in the Ohio legislature that wants to downplay the teaching of the scientific process. From the article: "Specifically prohibiting a discussion of the scientific process is a recipe for educational chaos. To begin with, it leaves the knowledge the kids will still receive—the things we have learned through science—completely unmoored from any indication of how that knowledge was generated or whether it's likely to be reliable. The scientific process is also useful in that it can help people understand the world around them and the information they're bombarded with; it can also help people assess the reliability of various sources of information." The science standards would have "...focus on academic and scientific knowledge rather than scientific processes; and prohibit political or religious interpretation of scientific facts in favor of another." Political interpretation of scientific facts include humans contributing to climate change according to the bill's sponsor, who also thinks intelligent design would be OK under the law.

Statistics Losing Ground To CS, Losing Image Among Students

Unknown Lamer posted 10 hours ago | from the big-bad-data dept.

Stats 102

theodp (442580) writes Unless some things change, UC Davis Prof. Norman Matloff worries that the Statistician could be added to the endangered species list. "The American Statistical Association (ASA) leadership, and many in Statistics academia," writes Matloff, "have been undergoing a period of angst the last few years, They worry that the field of Statistics is headed for a future of reduced national influence and importance, with the feeling that: [1] The field is to a large extent being usurped by other disciplines, notably Computer Science (CS). [2] Efforts to make the field attractive to students have largely been unsuccessful."

Matloff, who has a foot in both the Statistics and CS camps, but says, "The problem is not that CS people are doing Statistics, but rather that they are doing it poorly. Generally the quality of CS work in Stat is weak. It is not a problem of quality of the researchers themselves; indeed, many of them are very highly talented. Instead, there are a number of systemic reasons for this, structural problems with the CS research 'business model'." So, can Statistics be made more attractive to students? "Here is something that actually can be fixed reasonably simply," suggests no-fan-of-TI-83-pocket-calculators-as-a-computational-vehicle Matloff. "If I had my druthers, I would simply ban AP Stat, and actually, I am one of those people who would do away with the entire AP program. Obviously, there are too many deeply entrenched interests for this to happen, but one thing that can be done for AP Stat is to switch its computational vehicle to R."

Fermilab Begins Testing Holographic Universe Theory

Unknown Lamer posted 11 hours ago | from the warp-life-0.1 dept.

Science 218

Back in 2009, researchers theorized that space could be a hologram. Four years ago, Fermilab proposed testing the theory, and the experiment is finally going online. Jason Koebler writes Operating with cutting-edge technology out of a trailer in rural Illinois, government researchers started today on a set of experiments that they say will help them determine whether or not you and me and everything that exists are living in a two-dimensional holographic universe. In a paper explaining the theory, Craig Hogan, director of the Department of Energy's Fermilab Center for Particle Astrophysics writes that "some properties of space and time that seem fundamental, including localization [where things are], may actually emerge only as a macroscopic approximation from the flow of information in a quantum system." In other words, the location of places in space may constantly fluctuate ever so slightly, which would suggest we're living in a hologram.

Brown Dwarf With Water Clouds Tentatively Detected Just 7 Light-Years From Earth

Unknown Lamer posted yesterday | from the a-bit-chilly dept.

Space 76

sciencehabit (1205606) writes Astronomers have found signs of water ice clouds on an object just 7.3 light-years from Earth — less than twice the distance of Alpha Centauri. If confirmed, the discovery is the first sighting of water clouds beyond our solar system. The clouds shroud a Jupiter-sized object known as a brown dwarf and should yield insight into the nature of cool giant planets orbiting other suns.

Exomoon Detection Technique Could Greatly Expand Potential Habitable Systems

Unknown Lamer posted yesterday | from the larry-ellison-to-buy-exomoon dept.

Space 65

Luminary Crush (109477) writes Most of the detected exoplanets thus far have been gas giants which aren't great candidates for life as we know it. However, many of those planets are in fact in the star's habitable zone and could have moons with conditions more favorable. Until now, methods to detect the moons of such gas giants have been elusive, but researchers at the University of Texas, Arlington have discovered a way to detect the interaction of a moon's ionosphere with the parent gas giant from studies of Jupiter's moon Io. The search for 'Pandora' has begun.

How the Ancient Egyptians (Should Have) Built the Pyramids

samzenpus posted yesterday | from the build-it-better dept.

Science 191

KentuckyFC writes The Great Pyramid of Giza in Egypt is constructed from 2.4 million limestone blocks, most about 2.5 tonnes but some weighing in at up to 80 tonnes, mostly sourced from local limestone quarries. That raises a famous question. How did the ancient Egyptians move these huge blocks into place? There is no shortage of theories but now a team of physicists has come up with another that is remarkably simple--convert the square cross section of the blocks into dodecadrons making them easy to roll. The team has tested the idea on a 30 kg scaled block the shape of a square prism. They modified the square cross-section by strapping three wooden rods to each long face, creating a dodecahedral profile. Finally, they attached a rope to the top of the block and measured the force necessary to set it rolling. The team say a full-sized block could be modified with poles the size of ships masts and that a work crew of around 50 men could move a block with a mass of 2.5 tonnes at the speed of 0.5 metres per second. The result suggests that this kind of block modification is a serious contender for the method the Egyptians actually used to construct the pyramids, say the researchers.

Climate Scientist Pioneer Talks About the Furture of Geoengineering

samzenpus posted yesterday | from the it's-getting-hot-in-here dept.

Earth 136

First time accepted submitter merbs writes At the first major climate engineering conference, Stanford climatologist Ken Caldeira explains how and why we might come to live on a geoengineered planet, how the field is rapidly growing (and why that's dangerous), and what the odds are that humans will try to hijack the Earth's thermostat. From the article: "For years, Dr. Ken Caldeira's interest in planet hacking made him a curious outlier in his field. A highly respected atmospheric scientist, he also describes himself as a 'reluctant advocate' of researching solar geoengineering—that is, large-scale efforts to artificially manage the amount of sunlight entering the atmosphere, in order to cool off the globe."

$75K Prosthetic Arm Is Bricked When Paired iPod Is Stolen

timothy posted yesterday | from the what-about-backups dept.

Bug 191

kdataman writes U.S. Army Staff Sgt. Ben Eberle, who lost an arm and both legs in Afghanistan, had his Ipod Touch stolen on Friday. This particular Ipod Touch has an app on it that controls his $75,000 prosthetic arm. The robbery bricked his prosthesis: "That is because Eberle's prosthetic hand is programmed to only work with the stolen iPod, and vice versa. Now that the iPod is gone, he said he has to get a new hand and get it reprogrammed with his prosthesis." I see three possibilities: 1) The article is wrong, possibly to guilt the thief into returning the Ipod. 2) This is an incredibly bad design by Touch Bionics. Why would you make a $70,000 piece of equipment permanently dependent on a specific Ipod Touch? Ipods do fail or go missing. 3) This is an intentionally bad design to generate revenue. Maybe GM should do this with car keys? "Oops, lost the keys to the corvette. Better buy a new one."

Why Do Humans Grow Up So Slowly? Blame the Brain

Unknown Lamer posted 2 days ago | from the brains-considered-harmful dept.

Science 126

sciencehabit (1205606) writes Humans are late bloomers when compared with other primates — they spend almost twice as long in childhood and adolescence as chimps, gibbons, or macaques do. But why? One widely accepted but hard-to-test theory is that children's brains consume so much energy that they divert glucose from the rest of the body, slowing growth. Now, a clever study of glucose uptake and body growth in children confirms this 'expensive tissue' hypothesis.

The Evolution of Diet

samzenpus posted 2 days ago | from the eat-like-your-ancestors dept.

Science 276

An anonymous reader writes Here's a story from National Geographic that looks at the historical diets of people from around the world and what that diet might look like in the future. From the article: "So far studies of foragers like the Tsimane, Arctic Inuit, and Hadza have found that these peoples traditionally didn't develop high blood pressure, atherosclerosis, or cardiovascular disease. 'A lot of people believe there is a discordance between what we eat today and what our ancestors evolved to eat,' says paleoanthropologist Peter Ungar of the University of Arkansas. The notion that we're trapped in Stone Age bodies in a fast-food world is driving the current craze for Paleolithic diets. The popularity of these so-called caveman or Stone Age diets is based on the idea that modern humans evolved to eat the way hunter-gatherers did during the Paleolithic—the period from about 2.6 million years ago to the start of the agricultural revolution—and that our genes haven't had enough time to adapt to farmed foods."

Whole Organ Grown In Animal For First Time

samzenpus posted 2 days ago | from the inside-job dept.

Medicine 75

An anonymous reader writes British scientists have produced the first working organ grown from scratch in a living animal. Reprogrammed cells created in a lab were used in a mouse to produce a thymus. The organ was created using connective tissue cells from a mouse embryo and were converted into a different cell strain by changing a genetic switch in their DNA. The resulting cells grew into the whole organ after being injected. It has only been tested on mice so far, but researchers at Edinburgh University say that within a decade the procedure could be effective and safe enough for humans. The findings were published in Nature Cell Biology.

Numerous Methane Leaks Found On Atlantic Sea Floor

samzenpus posted 2 days ago | from the bubbling-up dept.

Earth 272

sciencehabit writes Researchers have discovered 570 plumes of methane percolating up from the sea floor off the eastern coast of the United States, a surprisingly high number of seeps in a relatively quiescent part of the ocean. The seeps suggest that methane's contribution to climate change has been underestimated in some models. And because most of the seeps lie at depths where small changes in temperature could be releasing the methane, it is possible that climate change itself could be playing a role in turning some of them on.

New Nail Polish Alerts Wearers To Date Rape Drugs

samzenpus posted 2 days ago | from the at-the-tips-of-your-fingers dept.

Science 575

stephendavion writes Checking to see if your drink has been tampered with is about to get a whole lot more discreet. Thanks to the work of four North Carolina State University undergrads, you'll soon be able to find out without reaching for a testing tool. That's because you'll already have five of them on each hand. The team — Ankesh Madan, Stephen Gray, Tasso Von Windheim, and Tyler Confrey-Maloney — has come up with a creative and unobtrusive way to package chemicals that react when exposed to Rohypnol and GHB. They put it in nail polish that they're calling Undercover Colors.

13-Year-Old Finds Fungus Deadly To AIDS Patients Growing On Trees

samzenpus posted 2 days ago | from the nature-not-nurture dept.

Medicine 134

An anonymous reader writes Researchers have pinpointed the environmental source of fungal infections that have been sickening HIV/AIDS patients in Southern California for decades. It literally grows on trees. The discovery is based on the science project of a 13-year-old girl, who spent the summer gathering soil and tree samples from areas around Los Angeles hardest hit by infections of the fungus named Cryptococcus gattii.

Princeton Nuclear Fusion Reactor Will Run Again

samzenpus posted 2 days ago | from the back-to-life dept.

Power 147

mdsolar writes with good news for the National Spherical Torus Experiment. Tucked away from major roadways and nestled amid more than 80 acres of forest sits a massive warehouse-like building where inside, a device that can produce temperatures hotter than the sun has sat cold and quiet for more than two years. But the wait is almost over for the nuclear fusion reactor to get back up and running at the Princeton Plasma Physics Laboratory. "We're very excited and we're all anxious to turn that machine back on," said Adam Cohen, deputy director for operations at PPPL. The National Spherical Torus Experiment (NSTX) has been shut down since 2012 as it underwent a $94 million upgrade that will make it what officials say will be the most powerful fusion facility of its kind in the world. It is expected to be ready for operations in late winter or early spring, Cohen said.

Mangalyaan Gets Ready To Enter Mars Orbit

timothy posted 3 days ago | from the space-is-a-big-place dept.

Mars 65

William Robinson (875390) writes India's Mars Orbiter Mission, known as Mangalyaan is now at a distance of just nine million kilometres from the red planet, and is scheduled to enter the orbit of Mars at 7.30 am on September 24. Mangalyaan was launched on 5th November 2013 by ISRO, presently busy planning to reduce the speed of the spacecraft through the process of firing the LAM engine and bring it to 1.6 km/sec, before it is captured by the planet's gravity. Eventually, the mission's official updates page should catch up.

Western US Drought Has Made Earth's Crust Rise

timothy posted 3 days ago | from the like-a-burden's-been-lifted dept.

Earth 88

Loss of both groundwater and water stored in surface reservoirs in the drought-striken western U.S. isn't just expensive and contentious: it's evidently making the earth's crust rise in the West. Scripps researchers say that the average rise across a wide stretch of the West Coast is approximately one sixth of an inch. Scientists came to this conclusion by studying data collected from hundreds of GPS sensors across the Western U.S., installed primarily to detect small changes in the ground due to earthquakes. But the GPS data can also be used to show very small changes in elevation. The study specifically examined GPS stations on bedrock or very thin soil because it provides the most accurate measurement of groundwater loss, said Duncan Agnew, professor of geophysics at the Scripps Institution of Oceanography. Areas with thick soil, such as farms, can see the ground sinking as the soil dries out. But Agnew said the bedrock underneath that soil is actually rising. The highest uplift of the Earth occurred in California's mountains because there is so much water below them, Agnew said. The uplift was less in Nevada and the Great Basin.

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