Today on New Scientist: 19 February 2013







Doctors would tax sugary drinks to combat obesity

Hiking the price of fizzy drinks would cut consumption and so help fight obesity, urges the British Academy of Medical Royal Colleges



Space station's dark matter hunter coy about findings

Researchers on the Alpha Magnetic Spectrometer, which sits above the International Space Station, have collected their first results - but won't reveal them for two weeks



Huge telescopes could spy alien oxygen

Hunting for oxygen in the atmospheres of distant exoplanets is a tough job, but a new wave of giant telescopes should be up to the task



Evolution's detectives: Closing in on missing links

Technology is taking the guesswork out of finding evolution's turning points, from the first fish with legs to our own recent forebears, says Jeff Hecht



Moody Mercury shows its hidden colours

False-colour pictures let us see the chemical and physical landscape of the normally beige planet closest to the sun



LHC shuts down to prepare for peak energy in 2015

Over the next two years, engineers will be giving the Large Hadron Collider the makeover it needs to reach its maximum design energy



Insert real news events into your mobile game

From meteor airbursts to footballing fracas, mobile games could soon be brimming with news events that lend them more currency



3D-printing pen turns doodles into sculptures

The 3Doodle, which launched on Kickstarter today, lets users draw 3D structures in the air which solidify almost instantly



We need to rethink how we name exoplanets

Fed up with dull names for exoplanets, Alan Stern and his company Uwingu have asked the public for help. Will it be so long 2M 0746+20b, hello Obama?



A shocking cure: Plug in for the ultimate recharge

An electrical cure for ageing attracted the ire of the medical establishment. But could the jazz-age inventor have stumbled upon a genuine therapy?



Biofuel rush is wiping out unique American grasslands

Planting more crops to meet the biofuel demand is destroying grasslands and pastures in the central US, threatening wildlife




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Japan logs worst January trade deficit of $17.4 bn






TOKYO: Japan logged its worst ever trade deficit for January due mainly to heavier fuel import bills, official data showed Wednesday.

Finance ministry figures showed the economy suffered a shortfall of 1.63 trillion yen, the worst deficit on record for the month. Comparable data began in 1979.

Economists had expected an average shortfall of 1.3 trillion yen.

Exports increased 6.4 percent to 4.8 trillion yen, posting the first rise in eight months on higher shipments of automobile parts and other items.

But imports rose 7.3 percent to 6.43 trillion yen as imports of petroleum products, natural liquefied gas and crude oil soared.

Japan's fuel imports have risen since the 2011 earthquake and tsunami disaster sparked the world's worst nuclear accident in a generation, sending most atomic power plants offline.

- AFP/sf



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This sheet turns your windows into mirrors




One feature on the beleaguered Boeing 787 Dreamliner is its electrochromic dimming system that lets passengers make windows on the aircraft more or less opaque at the touch of a button.


Japan's National Institute of Advanced Industrial Science and Technology (AIST) says that while these smart windows can take about 30 seconds to change, it has a new stick-on window film that can go from reflective to see-through in only 5 seconds.


The switchable mirror device can change states when a low voltage is applied.




The tech can be used to produce low-cost, large-scale smart windows, according to AIST. In contrast to some smart windows, the sheet reflects light instead of absorbing it, preventing the glass from heating up.




Since it reduces incoming heat, the sheet could help keep buildings and vehicles cool in summer, reducing the need for air conditioning as well as electricity.


It takes 10 minutes for the layer to return to a mirror state, but AIST has shown that electrolyzing moisture in the air will fill the sheet with hydrogen, and revert the sheet to a reflective state in 30 seconds.


The sheet was recently shown off at the 11th International Nanotechnology Exhibition & Conference in Tokyo; check out a demo in the vid below.


(Via Akihabara News)


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Florida Python Hunt Captures 68 Invasive Snakes


It's a wrap—the 2013 Python Challenge has nabbed 68 invasive Burmese pythons in Florida, organizers say. And experts are surprised so many of the elusive giants were caught.

Nearly 1,600 people from 38 states—most of them inexperienced hunters—registered for the chance to track down one of the animals, many of which descend from snakes that either escaped or were dumped into the wild.

Since being introduced, these Asian behemoths have flourished in Florida's swamps while also squeezing out local populations of the state's native mammals, especially in the Everglades. (See Everglades pictures.)

To highlight the python problem, the Florida Fish and Wildlife Conservation Commission and its partners launched the 2013 Python Challenge, which encouraged registered participants to catch as many pythons as they could between January 12 and February 10 in state wildlife-management areas within the Everglades.

The commission gave cash prizes to those who harvested the most and longest pythons.

Frank Mazzotti, a wildlife ecologist at the University of Florida and scientific leader for the challenge, said before the hunt that he would consider a harvest of 70 animals a success—and 68 is close enough to say the event met its goals.

It's unknown just how many Burmese pythons live in Florida, but catching 68 snakes is an "exceptional" number, added Kenneth Krysko, senior herpetologist at the Florida Museum of Natural History in Gainesville.

Snakes in the Grass

Finding 68 snakes is impressive, experts say, since it's so hard to find pythons. For one, it's been unusually warm lately in Florida, which means the reptiles—which normally sun themselves to regulate their body temperature—are staying in the brush, making them harder to detect, Krysko said.

On top of that, Burmese pythons are notoriously hard to locate, experts say.

The animals are so well camouflaged that people can stand right next to one and not notice it. "It's rare that you get to see them stretched out—most of the time they're blending in," said Cheryl Millett, a biologist at the Nature Conservancy, a Python Challenge partner.

What's more, the reptiles are ambush hunters, which means they spend much of their time lying in wait in dense vegetation, not moving, she said.

That's why Millett gave the hunters some tips, such as looking along the water's edge, where the snakes like to hang out, and also simply listening for "something big moving through the vegetation."

Even so, catching 68 snakes is "actually is a little more than I expected," said Millett.

No Walk in the Park

Ruben Ramirez, founder of the company Florida Python Hunters, won two prizes in the competition: First place for the most snakes captured—18—and second place for the largest python, which he said was close to 11 feet (3.4 meters) long. The biggest Burmese python caught in Florida, nabbed in 2012, measured 17.7 feet (5.4 meters).

"They're there, but they're not as easy to find as people think," said Ramirez. "You're not going to be stumbling over pythons in Miami." (Related blog post: "What It's Like to Be a Florida Python Hunter.")

All participants, some of whom had never hunted a python before, were trained to identify the difference between a Burmese python and Florida's native snakes, said Millett. No native snakes were accidentally killed, she said.

Hunters were also told to kill the snakes by either putting a bolt or a bullet through their heads, or decapitating them-all humane methods that result "in immediate loss of consciousness and destruction of the brain," according to the Python Challenge website.

Ramirez added that some of the first-time or amateur hunters had different expectations. "I think they were expecting to walk down a canal and see a 10-foot [3-meter], 15-foot [4.5-meter] Burmese python. They thought it'd be a walk in the park."

Stopping the Spread

Completely removing these snakes from the wild isn't easy, and some scientists see the Python Challenge as helping to achieve part of that goal. (Read an opposing view on the Python Challenge: "Opinion: Florida's Great Snake Hunt Is a Cheap Stunt.")

"You're talking about 68 more animals removed from the population that shouldn't be there—that's 68 more mouths that aren't being fed," said the Florida museum's Krysko. (Read about giant Burmese python meals that went bust.)

"I support any kind of event or program that not only informs the general public about introduced species, but also gets the public involved in removing these nonnative animals that don't belong there."

The Nature Conservancy's Millett said the challenge had two positive outcomes: boosting knowledge for both science and the public.

People who didn't want to hunt or touch the snakes could still help, she said, by reporting sightings of exotic species to 888-IVE-GOT-1, through free IveGot1 apps, or www.ivegot1.org.

Millett runs a public-private Nature Conservancy partnership called Python Patrol that the Florida wildlife commission will take on in the fall. The program focuses not only on eradicating invasive pythons but on preventing the snake from moving to ecologically sensitive areas, such as Key West.

Necropsies on the captured snakes will reveal what pythons are eating, and location data from the hunters will help scientists figure out where the snakes are living—valuable data for researchers working to stop their spread.

"This is the most [number of] pythons that have been caught in this short of a period of time in such an extensive area," said the University of Florida's Mazzotti.

"It's an unprecedented sample, and we're going to get a lot of information out of that."


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Report Fingers Chinese Military Unit in US Hacks











A Virginia-based cyber security firm has released a new report alleging a specific Chinese military unit is likely behind one of the largest cyber espionage and attack campaigns aimed at American infrastructure and corporations.


In the report, released today by Mandiant, China's Unit 61398 is blamed for stealing "hundreds of terabytes of data from at least 141 organizations" since 2006, including 115 targets in the U.S. Twenty different industrial sectors were targeted in the attacks, Mandiant said, from energy and aerospace to transportation and financial institutions.


Mandiant believes it has tracked Unit 61398 to a 12-story office building in Shanghai that could employ hundreds of workers.


"Once [Unit 61398] has established access [to a target network], they periodically revisit the victim's network over several months or years and steal broad categories of intellectual property, including technology blueprints, proprietary manufacturing processes, test results, business plans, pricing documents, partnership agreements, and emails and contact lists from victim organizations' leadership," the report says.


The New York Times, which first reported on the Mandiant paper Monday, said digital forensic evidence presented by Mandiant pointing to the 12-story Shangai building as the likely source of the attacks has been confirmed by American intelligence officials. Mandiant was the firm that The Times said helped them investigate and eventually repel cyber attacks on their own systems in China last month.






Peter Parks/AFP/Getty Images







The Chinese government has repeatedly denied involvement in cyber intrusions and Chinese Foreign Ministry spokesperson Hong Lei said today that the claims in the Mandiant report were unsupported, according to a report by The Associated Press.


"To make groundless accusations based on some rough material is neither responsible nor professional," he reportedly said.


Mandiant's report was released a week after President Obama said in his State of the Union address that America must "face the rapidly growing threat from cyber attack."


"We know hackers steal people's identities and infiltrate private e-mail. We know foreign countries and companies swipe our corporate secrets. Now our enemies are also seeking the ability to sabotage our power grid, our financial institutions, and our air traffic control systems. We cannot look back years from now and wonder why we did nothing in the face of real threats to our security and our economy," he said.


Though Obama did not reference China or any country specifically, U.S. officials have previously accused the Asian nation of undertaking a widespread cyber espionage campaign.


Referring to alleged Chinese hacking in October 2011, House Intelligence Committee Chairman Rep. Mike Rogers (R-Mich.) said in an open committee meeting that he did not believe "that there is a precedent in history for such a massive and sustained intelligence effort by a government agency to blatantly steal commercial data and intellectual property."


Rogers said that cyber intrusions into American and other Western corporations by hackers working on behalf of Beijing -- allegedly including attacks on corporate giants like Google and Lockheed Martin -- amounted to "brazen and widespread theft."


"The Chinese have proven very, very good at hacking their way into very large American companies that spend a lot of money trying to protect themselves," cyber security expert and ABC News consultant Richard Clarke said in an interview last week.



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Biofuel rush is wiping out unique American grasslands








































Say goodbye to the grass. The scramble for biofuels is rapidly killing off unique grasslands and pastures in the central US.













Christopher Wright and Michael Wimberly of South Dakota State University in Brookings analysed satellite images of five states in the western corn belt. They found that 530,000 hectares of grassland disappeared under blankets of maize and soya beans between 2006 and 2011. The rate was fastest in South Dakota and Iowa, with as much as 5 per cent of pasture becoming cropland each year.











The trend is being driven by rising demand for the crops, partly through incentives to use them as fuels instead of food.













The switch from meadows to crops is causing a crash in populations of ground-nesting birds. One of the US's most important breeding grounds for wildfowl, an area called the Prairie Pothole Region, is also at risk, with South Dakota's crop fields now within 100 metres of the wetlands. "Half of North American ducks breed here," says Wright.












Bill Henwood of the Temperate Grasslands Conservation Initiative in Vancouver, Canada, says the results are distressing. "Exchanging real environmental impacts for the dubious benefits of biofuels is counterproductive," he says. "Last year's record drought in the corn belt all but wiped out the crops anyway."












Journal reference: PNAS, DOI: 10.1073/pnas.1215404110


















































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Greater US military role in Mali likely after polls: senator






BAMAKO: The United States is likely to play a more active military role in Mali, where French-led forces are battling Islamist rebels, after the country holds elections, the chair of a key Senate sub-committee said Monday.

Washington has been providing intelligence, transport and mid-air refuelling to France, which launched its intervention last month, but cannot work directly with the Malian army until a democratically elected government replaces current leaders who came to power after a coup, said Christopher Coons, chair of the Senate foreign relations committee's Africa sub-committee.

"There is the hope that there will be additional support from the United States in these and other areas, but ... American law prohibits direct assistance to the Malian military following the coup," Coons told journalists in the Malian capital.

"After there is a full restoration of democracy, I would think it is likely that we will renew our direct support for the Malian military," added the senator, who led a bipartisan congressional delegation to Mali to meet with interim president Dioncounda Traore and French and African defence officials.

US military aid to Mali before the March 2012 coup consisted largely of training and equipment such as vehicles, a State Department official said.

But military assistance "would obviously be resumed in a way commensurate with the current needs. Priorities would have shifted a bit," the official added.

"There could be other kinds of assistance that had there not been a coup we could have provided, or requests for things now that we can't provide."

Some US lawmakers criticised President Barack Obama's administration last week for not doing more to help France in Mali.

"This is a NATO ally fighting Al-Qaeda-linked terrorists -- it shouldn't be that hard," said House foreign affairs committee chairman Ed Royce.

The hint of greater US involvement after elections adds to the complicated calculus of picking a date for the polls.

Traore, the interim president, has said he wants elections by July 31.

But critics say that is too soon given the problems Mali still faces, including ongoing insurgent attacks, a deeply divided military and hundreds of thousands of people who have fled their homes.

The minister responsible for organising the elections, Territorial Administration Minister Moussa Sinko Coulibaly, said last week the timeline "can be changed if necessary".

France, which launched its intervention on January 11 as Al-Qaeda-linked groups that had occupied the north for 10 months made incursions into government territory, is keen to share the military burden in Mali, and has announced plans to start bringing its 4,000 troops home in March.

The European Union formally approved a military training mission Monday that will be tasked with getting Mali's under-funded army ready to secure reclaimed territory.

But France is the only Western country with combat troops on the ground, and would like to hand over to some 6,000 west African troops who are slowly being deployed to help.

Mali imploded after a coup by soldiers who blamed the government for the army's humiliation at the hands of separatist rebels in the north.

With the capital in disarray, Al-Qaeda-linked fighters hijacked the independence rebellion and took control of a territory larger than Texas.

-AFP/ac



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New HTC One hasn't debuted and already has a clone



The GooPhone One is a clone that beat the original to the punch.



(Credit:
GizChina)


HTC's anticipated flagship phone, reportedly dubbed the HTC One, won't be officially revealed until tomorrow, but it's already been cloned.


GizChina reports that the GooPhone One is based on the HTC One (also known by the code name M7) and was being shown off in renderings a few days before the HTC media event.


GooPhone is well known in China for producing remarkably similar knock-offs of popular smartphones and made headlines last year when it threatened to sue Apple over the iPhone 5 design patents in China.



The speed with which GooPhone manages to clone hardware seems to get more impressive with each release. Last fall, its version of the iPad Mini was revealed shortly after the smaller slate was announced by Apple, and this time around it's shoved its version of a flagship phone out into the ether before HTC has even confirmed the existence of such a clone-worthy device.


No specs have been released for the GooPhone One yet, but it appears that it will either be a dual sim or world band phone. GizChina speculates it may come with 1 GB of RAM and a quad-core processor.



No word yet on pricing for the GooPhone or if the company is planning any frivolous lawsuits against HTC.


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Confirmed: Dogs Sneak Food When People Aren't Looking


Many dog owners will swear their pups are up to something when out of view of watchful eyes. Shoes go missing, couches have mysterious teeth marks, and food disappears. They seem to disregard the word "no."

Now, a new study suggests dogs might understand people even better than we thought. (Related: "Animal Minds.")

The research shows that domestic dogs, when told not to snatch a piece of food, are more likely to disobey the command in a dark room than in a lit room.

This suggests that man's best friend is capable of understanding a human's point of view, said study leader Juliane Kaminski, a psychologist at the U.K.'s University of Portmouth.

"The one thing we can say is that dogs really have specialized skills in reading human communication," she said. "This is special in dogs." (Read "How to Build a Dog.")

Sneaky Canines

Kaminski and colleagues recruited 84 dogs, all of which were more than a year old, motivated by food, and comfortable with both strangers and dark rooms.

The team then set up experiments in which a person commanded a dog not to take a piece of food on the floor and repeated the commands in a room with different lighting scenarios ranging from fully lit to fully dark.

They found that the dogs were four times as likely to steal the food—and steal it more quickly—when the room was dark. (Take our dog quiz.)

"We were thinking what affected the dog was whether they saw the human, but seeing the human or not didn't affect the behavior," said Kaminski, whose study was published recently in the journal Animal Cognition.

Instead, she said, the dog's behavior depended on whether the food was in the light or not, suggesting that the dog made its decision based on whether the human could see them approaching the food.

"In a general sense, [Kaminski] and other researchers are interested in whether the dog has a theory of mind," said Alexandra Horowitz, head of the Dog Cognition Lab at Barnard University, who was not involved in the new study.

Something that all normal adult humans have, theory of mind is "an understanding that others have different perspective, knowledge, feelings than we do," said Horowitz, also the author of Inside of a Dog.

Smarter Than We Think

While research has previously been focused on our closer relatives—chimpanzees and bonobos—interest in dog cognition is increasing, thanks in part to owners wanting to know what their dogs are thinking. (Pictures: How smart are these animals?)

"The study of dog cognition suddenly began about 15 years ago," Horowitz said.

Part of the reason for that, said Brian Hare, director of the Duke Canine Cognition Lab and author of The Genius of Dogs, is that "science thought dogs were unremarkable."

But "dogs have a genius—years ago we didn't know what that was," said Hare, who was not involved in the new research. (See pictures of the the evolution of dogs, from wolf to woof.)

Many of the new dog studies are variations on research done with chimpanzees, bonobos, and even young children. Animal-cognition researchers are looking into dogs' ability to imitate, solve problems, or navigate social environments.

So just how much does your dog understand? It's much more than you—and science—probably thought.

Selectively bred as companions for thousands of years, dogs are especially attuned to human emotions—and, study leader Kaminski said, are better at reading human cues than even our closest mammalian relatives.

"There has been a physiological change in dogs because of domestication," Duke's Hare added. "Dogs want to bond with us in ways other species don't." (Related: "Dogs' Brains Reorganized by Breeding.")

While research reveals more and more insight into the minds of our furry best friends, Kaminski said, "We still don't know just how smart they are."


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Nike, Oakley Distance Themselves from Pistorius












Corporate sponsors of Olympic "blade runner" Oscar Pistorius have begun to distance themselves from the sprinter, who is accused of murdering his model girlfriend, Reeva Steenkamp. Pistorius is back to court in South Africa Tuesday morning on murder charges.


Oakley, the eyewear manufacturer, and the sporting goods giant Nike announced today that they would no longer run ads featuring Pistorius, the South African double-amputee who gained worldwide fame for running on carbon-fiber blades.


"In light of the recent allegations, Oakley is suspending its contract with Oscar Pistorius, effective immediately. Our hearts are with the families during this difficult time and we'll continue to follow the developments in this tragic case," Oakley spokeswoman Cheri Quigley said in a statement released this afternoon.


Earlier in the day, Nike said it had "no plans" to use Pistorius in future ad campaigns, according to the Associated Press. Nike had already pulled an Internet ad showing Pistorius starting to sprint with the caption, "I am the bullet in the chamber."


The companies made their announcements shortly after Pistorius' own agent, Peet Van Zyl, said publicly that he expected the sponsors to stick with Pistorius through the legal process.


PHOTOS: Paralympic Champion Charged in Killing


Pistorius will appear in court Tuesday morning for a bail hearing. His attorneys are expected to argue against the charge of premeditated murder.


His family has said the shooting was an accident.


The news comes as more details emerge about the incident on Thursday morning in which Pistorius allegedly shot and killed Steenkamp at his gated home in Pretoria, South Africa.






Bryn Lennon; Gallo Images/Getty Images











Oscar Pistorius Allegedly Fought the Night of Shooting Watch Video









Oscar Pistorius: Possibly Incriminating Information Leaked Watch Video









'Blade Runner' Murder Charges: Family Insist Accidental Shooting Watch Video





News reports in local papers have said that police are investigating whether Pistorius had an anger-management problem that led to the incident. They focused in on a bloodied cricket bat that may have been used when Steenkamp died.


A "shocked" teammate of Oscar Pistorius rebutted the rumors and speculation in South Africa that Pistorius had an anger problem.


Ofentse Mogawane, a sprinter for the South African Olympic team who ran the 400-meter relay with Pistorius in the London summer games last year, said Pistorius had always been genial to him and other people.


Mogawane said he would be in court Tuesday to support his friend.


"Basically, he was a very good guy to us, to the teammates and to most athletes," Mogawane said. "He was a really humble person and I wouldn't say a bad word about him. We never had any kind of clash, never any kind of fight or disagreement or arguing.


"The way Oscar's case was, it shocked me, shocked most of the people who know him. Tomorrow in court I am going to be there to support him. To hear what happened the night of the incident," he said.


"Sometimes when people are angry they cannot control their anger. Something must have happened."


Mogawane, 30, spoke in support of Pistorius after a report in South Africa's City Press newspaper that claimed police were looking into the possibility that a bloody cricket bat found in his bedroom was used before the shooting.


"The way the news has been running around in South Africa, that he is a short-tempered person, a person who has problems with anger management, they just want something to say," Mogawane said. "They don't know Oscar at all. They just want to get interviewed and take pictures. But truly speaking, it's just a lot of speculation."


Mogawane said he had seen Pistorius become angry before, but only in the same way as any other athlete or person.


But the City Press reported Sunday that police are investigating different scenarios involving the bat. Among them is the possibility that the flat-fronted bat was used in a violent argument before the shooting.


The paper also reported that Pistorius might have first shot Steenkamp in the bedroom, and that she possibly fled to the bathroom where she was shot three more times through the door.


When Pistorius' family arrived at the scene before paramedics, they saw him carrying Steenkamp down the stairs and performing mouth-to-mouth resuscitation on her, City Press reported.


Pistorius, who is nicknamed the "blade runner" because of the carbon-fiber blades on which he runs, has canceled all his upcoming racing appearances, his agent said Sunday night.


The decision was made to "allow Oscar to concentrate on the upcoming legal proceedings and to help and support all those involved as they try to come to terms with this very difficult and distressing situation," Van Zyl, of In Site Athlete Management, said in a statement.


Pistorius' father was quoted overnight in the South African paper The Sunday Times saying his countrymen are destroying a national icon.






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