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Image

Record-Setting 100+ T Magnetic Field Achieved At Los Alamos Screenshot-sm 166

Posted by Soulskill from the go-big-or-go-home dept.
New submitter schrodingersGato writes "Researchers at the Los Alamos campus of the National High Magnetic Field Laboratory achieved a record-setting 100.75 Tesla magnetic field. To do this, scientists placed a resistive magnet (a sophisticated electromagnet) coupled to massive bank of capacitors within another magnet fixed at a 'lower' magnetic field. A short-lived pulse two million times stronger than the Earth's magnetic field was generated. The magnet itself made an eerie sound as it was energized (video). Prepare for the birth of Magneto!"
Image

Battling Fish Fraud With DNA Testing Screenshot-sm 63

Posted by samzenpus from the these-are-not-the-eels-you-are-looking-for dept.
itwbennett writes "High demand, high prices, and nearly identical cheaper alternatives is a recipe for fraud. Eel fraud, that is. This has led Japanese researchers to develop a method to cheaply and quickly batch-test DNA by taking small tissue samples from thousands of eels. 'If a non-local eel is found in a batch, more tests will be performed to find the guilty foreigner.'"
Biotech

Researchers Tweak Mouse Neurons To Activate Specific Memories 29

Posted by Soulskill from the shine-a-laser-in-your-brain-to-find-your-keys dept.
An anonymous reader writes "According to new study published in Nature (abstract), MIT researchers have figured out how to trigger specific memories in rats by hitting certain neurons with a pulse of light. From the article: 'The researchers first identified a specific set of brain cells in the hippocampus that were active only when a mouse was learning about a new environment. They determined which genes were activated in those cells, and coupled them with the gene for channelrhodopsin-2 (ChR2), a light-activated protein used in optogenetics. ... The light-activated protein would only be expressed in the neurons involved in experiential learning — an ingenious way to allow for labeling of the physical network of neurons associated with a specific memory engram for a specific experience. Finally, the mice entered an environment and, after a few minutes of exploration, received a mild foot shock, learning to fear the particular environment in which the shock occurred. The brain cells activated during this fear conditioning became tagged with ChR2. Later, when exposed to triggering pulses of light in a completely different environment, the neurons involved in the fear memory switched on — and the mice quickly entered a defensive, immobile crouch.'"
Businesses

Do Women Make Better Bosses? 403

Posted by Soulskill from the technically-they-make-all-of-them dept.
Hugh Pickens writes "David Mielach reports on a new study which finds that women in management positions lead in a more democratic way, allowing employees to participate in decision-making and establishing interpersonal channels of communication. 'In line with known gender differences in individual leadership, we find that in workplaces with more women managers, more individualized employee feedback is carried out,' says study author Eduardo Melero. 'Likewise, we can see evidence, although weaker, that in these workplaces decisions are made more democratically and more interpersonal channels of communications are established.' The research was based on data from the Workplace Employment Relationships Survey, a survey of workplaces in the United Kingdom. Melero analyzed this data by looking at the number of women in management positions in companies and the leadership tactics employed at those companies. He found increased communication between management and employees in companies with women in management positions led to more well-informed decisions, since employee feedback will be utilized in the decision-making process. Still, correlation does not equal causation. 'One might question the direction of the relation: is it women managers who are the behind these policies, or is it that more progressive organizations are more accessible for women leaders than other workplaces (PDF)?'"
Science

'Antimagnet' Cloak Hides Objects From Magnetic Fields 87

Posted by Soulskill from the don't-let-ian-mckellan-get-his-hands-on-this dept.
ananyo writes "Researchers have made a cloak that can hide objects from static magnetic fields, realizing a theoretical prediction they made last year. This 'antimagnet' could have medical applications, but could also be used to subvert airport security. The cloak's interior is lined with turns of tape made from a high-temperature superconductor. Superconductors repel magnetic fields, so any magnetic field enclosed within a superconductor would be undetectable from outside. But the superconductor itself would still perturb an external magnetic field, so the researchers coated its external side with an ordinary ferromagnet. The superconductor tries to repel external field lines, whereas the ferromagnet tries to draw them in — together, the two layers cancel each other out (abstract)."
Government

As Nuclear Reactors Age, the Money To Close Them Lags 292

Posted by samzenpus from the what-could-go-wrong dept.
Harperdog writes "A worrying bit of news about nuclear reactors in the U.S. from the NYT: 'The operators of 20 of the nation's aging nuclear reactors, including some whose licenses expire soon, have not saved nearly enough money for prompt and proper dismantling. If it turns out that they must close, the owners intend to let them sit like industrial relics for 20 to 60 years or even longer while interest accrues in the reactors' retirement accounts.'"
Power

Scientists Discover Link Between Trees and Electricity 173

Posted by samzenpus from the lightning-leaf dept.
An anonymous reader writes "Everyone knows trees give us all oxygen so we can breathe, but according to Australian scientists, they also affect the concentration of positive and negative ions in the air. A team from the Queensland University of Technology's International Laboratory for Air Quality and Health ran experiments in six locations all over Brisbane and found that positive and negative ion concentrations in the air were two times higher in heavily wooded areas than in open grassy areas, such as parks."
Moon

Elementary School Kids Explore the Moon At Close Range 42

Posted by samzenpus from the permission-and-release-form dept.
sighted writes "The twin robotic spacecraft that make up the new GRAIL mission to map the moon's gravity include small cameras in addition to their primary scientific instruments. The first images from those cameras, as selected by school kids, were downlinked to Earth on March 20. 'MoonKAM is based on the premise that if your average picture is worth a thousand words, then a picture from lunar orbit may be worth a classroom full of engineering and science degrees,' said Maria Zuber, GRAIL mission principal investigator."
Medicine

Researchers May Have Discovered How Memories Are Encoded In the Brain 185

Posted by timothy from the enduring-mystery dept.
Zothecula writes "While it's generally accepted that memories are stored somewhere, somehow in our brains, the exact process has never been entirely understood. Strengthened synaptic connections between neurons definitely have something to do with it, although the synaptic membranes involved are constantly degrading and being replaced – this seems to be somewhat at odds with the fact that some memories can last for a person's lifetime. Now, a team of scientists believe that they may have figured out what's going on. Their findings could have huge implications for the treatment of diseases such as Alzheimer's."
Math

Blackjack Player Breaks the Bank At Atlantic City 294

Posted by timothy from the applied-mathematics dept.
Hugh Pickens writes with a link to Atlantic writer Mark Bowden's account of how one gambler has cleaned up against casinos: "[B]lackjack player Don Johnson won nearly $6 million playing blackjack in one night, single-handedly decimating the monthly revenue of Atlantic City's Tropicana casino after previously taking the Borgata for $5 million and Caesars for $4 million. How did Johnson do it? For one thing, Johnson is an extraordinarily skilled blackjack player. 'He plays perfect cards,' says Tony Rodio. But that's not enough to beat the house edge. As good as Johnson is at playing cards, his advantage is that he's even better at playing the casinos. When revenues slump as they have for the last five years at Atlantic City, casinos must rely more heavily on their most prized customers, the high rollers who wager huge amounts and are willing to lessen its edge for them primarily by offering discounts, or 'loss rebates.' When a casino offers a discount of, say, 10 percent, that means if the player loses $100,000 at the blackjack table, he has to pay only $90,000."
Medicine

Aspirin Helps Prevent Cancer, New Studies Show 132

Posted by timothy from the more-aspirin-ya-got-the-healthier-ya-are dept.
kkleiner writes "For years, research has shown that aspirin is beneficial in preventing heart attacks. Now new studies support its ability to prevent cancer as well. The studies, involving tens of thousands of participants over many decades, show reductions of cancer incidence (both short- and long-term) and mortality rate as well as a decrease in metastatic cancer. It still is not known exactly how aspirin and cancer are connected, but those between the ages of 45-50 will now likely consider taking low-dose aspirin daily for the remainder of their lives."
Music

Judge Rules Pi-Based Music Is Non-Copyrightable 183

Posted by timothy from the but-don't-go-stealing-from-feigenbaum dept.
New submitter AnalogDiehard writes "A copyright case alleging infringement of a 1992 Lars Erickson song 'The Pi Symphony' by Michael John Blake's 'What Pi Sounds Like' was dismissed by U.S. District Court Judge Michael H. Simon. Both pieces were conceived by assigning numbers to musical notes, then deriving a melody based on the pattern defined by a finite set of numbers in Pi. Judge Simon wrote in his legal opinion, intentionally announced on Pi day (3/14), that 'Pi is a non-copyrightable fact.' While the Judge did not invalidate the Erickson copyright, he ruled that 'Mr. Erickson may not use his copyright to stop others from employing this particular pattern of musical notes.' The judge further ruled that the two pieces were not sufficiently similar — for instance, its harmonies, structure and cadence are all different."
NASA

Mystery Rising Within Mercury 120

Posted by samzenpus from the rising-mecury dept.
astroengine writes "Something besides volcanic eruptions and asteroid and comet impacts has sculpted the surface of Mercury — an unknown process, possibly still going on today, that causes the ground to swell from the inside out. The evidence, collected by NASA's MESSENGER spacecraft currently orbiting the innermost planet, is scattered all over Mercury, including a dramatic finding that half of the floor of the biggest crater on the planet has been raised above the walls. The MESSENGER team's findings were announced at the Lunar and Planetary Science Conference in Houston on Wednesday and will be published in this week's Science."
Earth

Historic Heat In North America Turns Winter To Summer 618

Posted by samzenpus from the hotter-than-hot dept.
An anonymous reader writes "A huge, lingering ridge of high pressure over the eastern half of the United States brought summer-like temperatures to North America in March 2012. The warm weather shattered records across the central and eastern United States and much of Canada. From the article: 'Records are not only being broken across the country, they're being broken in unusual ways. Chicago, for example, saw temperatures above 26.6Celsius (80Fahrenheit) every day between March 14-18, breaking records on all five days. For context, the National Weather Service noted that Chicago typically averages only one day in the eighties each in April. And only once in 140 years of weather observations has April produced as many 80Fahrenheit days as this March.'"
GNOME

Garden Gnome Tests Earth's Gravity 144

Posted by samzenpus from the he's-not-heavy dept.
sciencehabit writes "Researchers have long hypothesized that objects weigh less at Earth's equator because the planet's spin and shape lessen gravity's pull there versus at the poles. Satellite accelerometers have confirmed this, but a digital scale manufacturer decided to test things the old-fashioned way. Enter the Kern garden gnome. When placed on a scale at the South Pole, the intrepid ornament weighed 309.82 grams versus 307.86 grams at the equator, a difference of 0.6%."
Science

University Makes 80,000 Einstein Documents Publicly Available 63

Posted by samzenpus from the what-do-you-think-Einstein? dept.
orgelspieler writes "The Hebrew University of Jerusalem has scanned in some 80,000 of Albert Einstein's documents. According to the university's press release, the documents cover more than just scientific matters. The broad range of subjects include his solution to the Jewish-Arab conflict, a postcard to his mother, and a letter from one of his mistresses asking for assistance getting to America. Some documents have been translated and annotated and are completely searchable."
Medicine

Killing Cancer With Engineered Viruses 144

Posted by samzenpus from the enemy-of-my-enemy dept.
techfun89 writes "Viruses can make us all sick, but one day could be engineered to defeat cancer. Cancer cells have one trait that may leave them open to attack. They aren't good at killing off viral infections, hence, at least in theory, you could use a virus to kill cancer cells without affecting the patient. Dr. Ian Mohr, a virologist at New York University, altered the herpes virus so that it isn't attacked by the immune system and kills cancer cells more efficiently. Another virus that is proving effective for liver cancer is Vaccinia. Vaccinia is used to protect against smallpox and so far the results have been promising. Several groups of patients have had an increase in survival times. Meanwhile other viruses are being used for things like melanoma, bladder cancer, and head and neck cancer."
Science

Camera Can See Around Corners 64

Posted by samzenpus from the no-place-to-hide dept.
ananyo writes "Scientists at the Massachusetts Institute of Technology in Cambridge have created a camera that is able to record images of objects hidden behind walls. They fire a pulse of laser light at a wall on the far side of the hidden scene, and record the time at which the scattered light reaches a camera. Photons bounce off the wall onto the hidden object and back to the wall, scattering each time, before a small fraction eventually reaches the camera, each at a slightly different time. The camera captures this time-of-flight information and uses it to reconstruct an image of the hidden object (abstract)."
Education

Tennessee Passes Bill That Allows "Teaching the Controversy" of Evolution 1108

Posted by samzenpus from the inherit-the-wind-II dept.
Layzej writes "The Tennessee Senate has passed a bill that allows teachers to 'teach the controversy' on evolution, global warming and other scientific subjects. Critics have called it a 'monkey bill' that promotes creationism in classrooms. In a statement sent to legislators, eight members of the National Academy of Science said that, in practice, the bill will likely lead to 'scientifically unwarranted criticisms of evolution.' and that 'By undermining the teaching of evolution in Tennessee's public schools, HB368 and SB893 would miseducate students, harm the state's national reputation, and weaken its efforts to compete in a science-driven global economy.'"
Patents

Supreme Court Limits Patents Based On Laws of Nature 173

Posted by Unknown Lamer from the there-goes-my-falling-off-a-bridge-patent dept.
New submitter sed quid in infernos writes "The Supreme Court issued a unanimous opinion yesterday holding that 'to transform an unpatentable law of nature into a patent-eligible application of such a law, a patent must do more than simply state the law of nature while adding the words "apply it."' The Court invalidated a patent on the process of adjusting medication dosage based on the levels of specific metabolites in the patient's blood. The opinion sets forth a process for determining patent eligibility for patent claims that include a law of nature. The court wrote that the "additional features" that show an application of the law must "provide practical assurance that the [claimed] process is more than a drafting effort." This language suggests that the burden will be on the patentee to prove that its limitations are more than patent attorney tricks.'"

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