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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China octogenarian on trial for four decade-old murder






BEIJING: A man in his eighties has gone on trial in a Chinese court for a murder he allegedly committed during the tumultuous Cultural Revolution over four decades ago, state media reported Wednesday.

A court in the eastern province of Zhejiang this week tried the man for the 1967 murder of a doctor suspected of being a spy, the state-run China News Service reported.

It said the defendant surnamed Qiu is accused of strangling his victim, surnamed Hong, with a rope before cutting off his legs and burying him.

Qiu was a member of a member of "an armed group" during the decade of upheaval known as the Cultural Revolution, the report said, adding that he was arrested last July.

The Cultural Revolution was launched in 1966 by then-leader Mao Zedong, who called on ordinary citizens to struggle against the privileged, resulting in attacks on government officials, intellectuals and other groups.

The period, which still stirs emotions in China, saw young people form "Red Guard" units which engaged in mass violence, destroyed cultural relics and sometimes obtained weapons.

China has never publicly estimated how many died during the period, which saw citizens turn on their neighbours. Half a million died in 1967 alone, according to British historian Roderick MacFarquhar.

The verdict in the trial is yet to be announced.

-AFP/fl



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Wozniak warns Apple must stay 'cool' -- or else



Apple co-founder Steve Wozniak.

Apple co-founder Steve Wozniak.



(Credit:
James Martin/CNET)


Apple co-founder Steve Wozniak has a warning for Tim Cook and his executives: stay cool, or you'll have some trouble.


Speaking to Bloomberg in an interview published today, Wozniak said that while Apple is still "really good at setting a standard with a new device," it's starting to lose its standing as the coolest company in the technology industry.


"We used to have these ads, 'I'm a
Mac and I'm a PC,' and the Mac was always the cool guy," Wozniak told Bloomberg. "And ouch, it's painful, because we kind of are losing that."



According to Bloomberg, Wozniak said that Apple's products are no longer able to easily trump competing devices from Amazon and Google because those companies "all have great ideas." He added that Apple should at least consider opening
iTunes to
Android and Windows Phone users.

Wozniak has been surprisingly outspoken about Apple over the last several months. In October, he called the company "arrogant" and lamented that it believed it was "the only one with the right clue." In November, he said that he was worried that Apple is "just used to cranking out the newest iPhone and falling a little behind." He also took a jab at Steve Jobs, saying that he didn't have "to be as much of a real rugged bastard, put people down, and make them feel demeaned."

Despite the negative talk, Wozniak told Bloomberg that he was hoping Apple would launch the rumored iWatch -- a device, he said, he would definitely buy.

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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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Pistorius Shots Said to Come From High Angle












At the second day of a bail hearing for Olympian Oscar Pistorius, a South African investigator who arrived at the scene of the Feb. 14 fatal shooting said that Reeva Steenkamp was shot from a high angle, which prosecutors say contradicts the runner's account that he was not wearing his prosthetics when he shot his girlfriend to death.


Pistorius, a double-amputee who runs on carbon-fiber blades, appeared in court for the second day in a row after his arrest in the death of girlfriend Steenkamp at his gated home in Pretoria, South Africa.


Read Oscar Pistorius' Full Statement to the Court


PHOTOS: Paralympic Champion Charged in Killing


Arresting officer Hilton Botha told the court today that the 26-year-old was standing in the master bathroom when he shot the supermodel, who was crouched in a defensive position behind a locked door in a smaller powder room. He also said that the bullets that were fired had been fired from high up, and the bullets seemed to be coming in a downward direction.


"[The angle] seems to me down. Fired down," Botha told the court.


Pistorius said Tuesday that he went to the bathroom and fired through the door before putting on his prosthetic legs.








Oscar Pistorius: Defense Presents New Evidence Watch Video











'Blade Runner' Appears in Court to Hear Murder Charges Watch Video





He said he mistakenly shot his girlfriend, thinking she was an intruder.


Prosecutors also said that they found two boxes of testosterone in the bedroom, although the defense disputes that, saying it's just herbal supplements.


The court also heard that a witness, someone about 2,000 feet away from Pistorius' home, heard nonstop fighting the morning of the shooting.


"We have a witness who says she heard non-stop shouting and fighting between 2 and 3 a.m.," said prosecutor Gerrie Nel, who added that another witness saw lights on at the time of the gunshots.


Pistorius says he spent a quiet night with Steenkamp before the shooting.


Nel said that Pistorius' actions and phone calls on the night indicate pre-planning, and that there was a "deliberate aiming of shots at the toilet from about 1.5 meters [about 5 feet]."


He says Steenkamp was shot on the right side of her body.


Officer Botha also said Pistorius should be considered a flight risk because investigators discovered that he has offshore bank accounts and a house in Italy.


"I think it would be hard to get him back," Botha told the court. "This is a very serious crime, shooting an unarmed woman behind closed door."


Prosecutors also say they may file more charges for unlicensed ammunition, after a special-caliber .38 round was found in a safe in Pistorius' home.


Botha told the court today that he arrived at Pistorius' home at 4:15 a.m. Valentine's Day to find Steenkamp already dead, dressed in a white shorts and a black vest, and covered in towels. The only thing that Pistorius said was, 'I thought it was a burglar,'" according to Botha.


The 26-year-old sprinter Tuesday denied that he willfully killed Steenkamp, telling the court that he shot the woman through his bathroom door because he believed she was an intruder.


Botha said today that he attended Steenkamp's postmortem, and that she had three entrance wounds: one on the head, one in the elbow and one in the hip.


Describing the scene to the court, Botha said that the shots fired into the bathroom were aimed at the toilet bowl.


The shooter "would have to walk into the bathroom and turn directly at the door to shoot at the toilet the way the bullets went," he said.






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Insert real news events into your mobile game



Paul Marks, chief technology correspondent


2.jpg

(Image: MultiPlay.io)


Seen it in the news? Now play it: a mobile-game programming system allows 3D depictions of news events to be introduced into the action. It's been developed by MultiPlay.io, a British start-up that says the technology could make gameplay more current and provide new ways for designers and coders to make cash - perhaps selling "news injection" rights to news agencies, TV stations or newspapers.






The firm's HTML5 games creator, also called MultiPlay.io, lets users import 3D animations during gameplay, allowing, for instance, last week's meteor explosion over Russia to be pasted in above the game action, says one of the company's founders, Ashraf Samy Hegab. Similarly, he says, if a millionaire footballer hits the news in, say, a fight with a nightclub bouncer, lookalike avatars could engage in just such a fracas as you motor by in a driving game.

The system creates games for Apple iOS, Google Android and Windows Phone devices. Changes to games need to be made in a browser on a PC or Mac, but can be made in real time without you having to download an app update.


"We're using a clever way of splitting the game logic that lets you change the game on the fly, as easy as a drag-and-drop task in a browser," says Hegab. "You don't need to know anything about servers or 3D programming using our engine." The idea also lets you extend the game's virtual playing area by expanding the game map, or add 3D vehicles you've designed yourself, such as glitzy spacecraft or cars. You could even add a model of yourself.


But news injection is MultiPlay.io's main aim - and its founders are hoping to interest news agencies when Mobile World Congress kicks off in Barcelona, Spain, later this month. They are not alone: adding news to make games more relevant is becoming popular, with some websites beginning to offer games with news-related activities built in, such as the fascinating Game The News, which "creates its own twists on news events in a playable form".




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Foul smelling tap water at Yishun HDB block






SINGAPORE: Residents at an HDB block in Yishun Avenue 11 reported that their tap water has been giving off a foul smell.

Water agency PUB said tests on water samples from the block show the water is safe for drinking.

It has since given the block's three water tanks a thorough cleaning.

Residents said the problem started on February 14.

One resident who stayed at the ninth floor said she developed rashes.

"On Friday, I found rashes on my body, and it got worse on Sunday. It was very itchy. On Monday, I went to see a doctor," said Lin Hui Min.

- CNA/fa



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Apple could unveil iPhone Mini this summer, says analyst



Is an iPhone Mini due out this year?

Is an iPhone Mini due out this year?



(Credit:
CNET)


An iPhone Mini priced at $330 in China would provide a healthy shot in the arm to Apple's Chinese smartphone sales, according to Morgan Stanley analyst Katy Huberty.


A low-priced iPhone would add another 20 percent to the 10 percent Chinese market share currently addressed by the
iPhone 5, the analyst said toda. Smartphone prices are starting to stabilize in China, which will open up the market for such a phone. But a deal with China Mobile is also key.


Apple currently sells the iPhone to Chinese consumers through China Unicom and China Telecom. The company has been trying to cook up a deal with China Mobile, the country's largest carrier, but has run into stumbling blocks.


Still, the analyst sees China Mobile as a major contributor to the growth of the iPhone, citing a few different factors. First, Apple would launch a new Mini model. Second, legislation for TD-LTE licenses and number portability could pass later this year or in 2014. And third, China Mobile would be more open to subsidizing higher-end smartphones on a TD-LTE network.


"We believe Apple could launch iPhone Mini at $330 (about Rmb 2,000), in-line with flagship products in China from Lenovo, Huawei, ZTE, and Coolpad," Huberty said in an investors note out today. "Even in a scenario of low 40 percent gross margin and 1/3 iPhone cannibalization rate (flattening legacy iPhone shipment growth), which we view as conservative, the iPhone Mini adds incremental revenue and gross profit dollars."


The $330 would be the unlocked price for the phone in China. Launching over the summer, the iPhone Mini would target other emerging markets beyond China, according to the investors note.


Rumors of a low-cost iPhone gained traction last month following stories from the Wall Street Journal and Bloomberg claiming such a device is on the horizon. Several analysts have also forecast a less-expensive iPhone on the agenda for sometime this year.


Strategy Analytics analyst Neil Mawston also sees an iPhone Mini on Apple'sfuture but doesn't think it will appear until 2014 at the earliest.


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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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Oscar Pistorius Charged With Premeditated Murder












A South Africa magistrate has charged Olympian Oscar Pistorius with a Schedule 6 offense, meaning that the alleged murder of his girlfriend was preplanned or premeditated.


Pistorius, a double-amputee who gained worldwide fame for running on carbon-fiber blades, allegedly shot his girlfriend, Reeva Steenkamp, four times at his gated home in Pretoria, South Africa, Feb. 14. South African prosecutors laid out part of their case against the 26-year-old athlete at today's bail hearing.


"[Pistorius] shot and killed an innocent woman," Gerrie Nel, the senior state prosecutor, said in court, adding that there is "no possible explanation to support" the notion that Pistorius thought Steenkamp was an intruder.


PHOTOS: Paralympic Champion Charged in Killing


Pistorius denied in court today that he intentionally shot her.


Police responding to neighbors' calls about shouting and gunshots at Pistorius' home in the guarded and gated complex in the South African capital discovered Steenkamp's body. A 9-mm pistol was recovered at the home.


At the hearing, for which Pistorius arrived early at the courthouse this morning in a gray suit and tie,
the state made it clear it would be asking for the alleged crime to be categorized as preplanned or premeditated.








Oscar Pistorius: Was Shooting Premeditated? Watch Video









Conflicting Theories Muddle Oscar Pistorius Murder Case Watch Video









Oscar Pistorius Allegedly Fought the Night of Shooting Watch Video





Prosecutors said Steenkamp had arrived at the house with the expectation of spending the night with Pistorius. They said that Steenkamp was shot while in the bathroom, which is about 21 feet from the main bedroom, and that the two rooms are linked by a passage. The door to the toilet was broken down from the outside, prosecutors said, inferring that the bathroom door had been locked.


Prosecutors believe it's a case of premeditated murder because, they say, Pistorius had to stop, put on his prosthetic legs, grab a gun and then walk 21 feet to a bathroom.


The premeditated murder charge means that he would be sentenced to life in prison if convicted, and that he is likely to be denied bail, which is expected to be decided later today.


South Africa has moved away from the jury system, in light of its brutally racist past, so Pistorius' fate will rest in the hands of a judge and two magistrates.


The prosecution said that the defense will no doubt argue for the charge to be downgraded to a Schedule 5 murder, but that was clearly wrong, according to the prosecution.


In a Schedule 5 offense, the onus is on the prosecution to prove that it would be in the interest of justice to keep the accused behind bars and not release him on bail. A Schedule 6 offense is a more serious category, wherein the defense has to prove that it would be in the interest of justice to release the accused person on bail.


The defense made it clear today that it is going to argue that Pistorius thought a burglar was inside that bathroom. The defense said prosecutors have no way to prove that he knew who was in there, and that they are prepared to submit evidence of other men who have shot wives and children, mistaking them for burglars.


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 on a bloody cricket bat that might have been used when Steenkamp died.


Meanwhile, the Steenkamp family planned a private memorial service at Victoria Park crematorium in the south coast city of Port Elizabeth today. As Pistorius stood before the court, Steenkamp's body was being transported to Port Elizabeth.


The Associated Press contributed to this report.



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