Northeast Shuts Down as Blizzard Batters Millions













A blizzard of possibly historic proportions battered the Northeast Friday into Saturday, and forecasters feared as much as two feet of snow and strong winds could shut down densely populated cities such as New York and Boston, where cars were ordered off the streets.


State officials declared states of emergencies throughout the region, and utilities estimated more than a half-million customers were without power by late Friday night.


Some wondered if the storm could top Boston's all-time single-storm snowfall record of 27.6 inches, set in 2003.


By 9 p.m. Friday, according to the National Weather Service, the storm was spinning off the coast of Long Island, N.Y., and expected to move north-northeastward past New England's coast before its effects tapered off on Saturday afternoon.


"Storm total snowfall accumulations of 1 to 2 feet ... with locally higher amounts are possible across much of the Northeast," the National Weather Service said. "The heaviest snow is forecast to fall across parts of eastern Massachusetts ... Connecticut and Rhode Island where snowfall amounts higher than two feet are possible. In addition to the heavy snowfall ... wind gusts as high as 70 mph are possible ... especially near the coasts."


By 9 p.m. Friday, parts of Connecticut and New York had the highest actual snowfall totals listed by the National Weather Service, with 13 inches measured in Ogdensburg and East Setaukey, N.Y., and Lisbon and North Branford, Conn.


Peak wind gusts included a 71-mph measurement in Buzzards Bay, Mass., the National Weather Service said.


Power outages also were reported across the region. As of 11 p.m. Friday, for instance, approximately 300,000 Massachusetts customers were without power, ABC News station WCVB reported. Utilities also reported approximately 170,000 without power in Rhode Island, 30,000 in Connecticut and nearly 20,000 in New York.


The blizzard conditions came together after a storm from the west joined forces with one from the south to form a nor'easter.










Hurricane Sandy Victims Hit Again, Survivors Prepare for Worst Watch Video









Weather Forecast: Blizzard Headed for Northeast Watch Video





The storm showed the potential for such ferocity that, before it even hit with full force, Massachusetts Gov. Deval Patrick declared a state of emergency Friday afternoon and signed an executive order banning vehicular traffic on roads in his state effective at 4 p.m. ET. It was believed that the last time the state enacted such a ban was during the blizzard of 1978. Violating the ban could result in a penalty of up to a year in jail and a $500 fine.


"[It] could definitely be a historic winter storm for the Northeast," said Adrienne Leptich of the National Weather Service in Upton, N.Y. "We're looking at very strong wind and heavy snow and we're also looking for some coastal flooding."


Airlines began shutting down operations Friday afternoon at major airports in the New York area as well as in Boston, Portland, Maine, Providence, R.I., and other Northeastern airports. By early evening Friday, more than 4,300 flights had been cancelled on Friday and Saturday, according to FlightAware. Airlines hoped to resume flights by Saturday afternoon, though normal schedules were not expected until Sunday.


The snow fell heavily Friday afternoon in New York City. Mayor Michael Bloomberg said clearing the roads was his main concern, and the city readied 1,700 snow plows and 250,000 tons of salt to clear the streets.


New York City was expecting up to 14 inches of snow, which started falling early this morning, though the heaviest amounts were expected to fall at night and into Saturday. Wind gusts of 55 mph were expected in New York City.


"Stay off the city streets. Stay out of your cars and stay at home while the worst of the storm is on us," Bloomberg said Friday.


Connecticut Gov. Dannel P. Malloy declared a state of emergency, deploying National Guard troops across the state to assist in rescues and other emergencies. Schools and state courthouses were closed, and all flights after 1:30 p.m. at Bradley Airport, north of Hartford, Conn., were cancelled. The state's largest utility companies planned for the possibility that 30 percent of customers -- more than 400,000 homes and businesses -- would lose power.


Malloy also directed drivers to stay off the state's major highways.


"Please stay off of 95, 91, 84, Merritt Parkway and any other limited-access road in the state," he said Friday evening.


PHOTOS: Northeast Braces for Snowstorm


Boston, Providence, R.I., Hartford, Conn., and other New England cities canceled school today.


"Stay off the streets of our city. Basically, stay home," Boston Mayor Tom Menino warned Thursday.


On Friday, Menino applauded the public's response.


"I'm very pleased with the compliance with the snow emergency," he said. "You drive down some of the roadways, you don't see one car."


Friday evening, Gov. Patrick also applauded the public's cooperation with the statewide vehicle ban, noting the clear roads were helping utility crews get their work done.


"It's been a great, great help and I thank everyone," Patrick said. "I know it's been an imposition."


As of 4:30 p.m. Friday, according to the Department of Defense, 837 National Guard soldiers and airmen under state control had been activated in Connecticut, Massachusetts and New York in anticipation of the storm -- 552 in Massachusetts, 235 in Connecticut and 50 in New York. The extra hands were helping with roadways, transportation, making wellness checks on residents and other emergency services.


Beach erosion and coastal flooding was possible from New Jersey to Long Island, N.Y., and into New England coastal areas. It was feared some waves off the coast could reach more than 20 feet.






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Robot inquisition keeps witnesses on the right track








































MEMORY is a strange thing. Just using the verb "smash" in a question about a car crash instead of "bump" or "hit" causes witnesses to remember higher speeds and more serious damage. Known as the misinformation effect, it is a serious problem for police trying to gather accurate accounts of a potential crime. There's a way around it, however: get a robot to ask the questions.












Cindy Bethel at Mississippi State University in Starkville and her team showed 100 "witnesses" a slide show in which a man steals money and a calculator from a drawer, under the pretext of fixing a chair. The witnesses were then split into four groups and asked about what they had seen, either by a person or by a small NAO robot, controlled in a Wizard of Oz set-up by an unseen human.













Two groups - one with a human and one a robot interviewer - were asked identical questions that introduced false information about the crime, mentioning objects that were not in the scene, then asking about them later. When posed by humans, the questions caused the witnesses' recall accuracy to drop by 40 per cent - compared with those that did not receive misinformation - as they remembered objects that were never there. But misinformation presented by the NAO robot didn't have an effect.












"It was a very big surprise," says Bethel. "They just were not affected by what the robot was saying. The scripts were identical. We even told the human interviewers to be as robotic as possible." The results will be presented at the Human-Robot Interaction conference in Tokyo next month.












Bilge Mutlu, director of the Human-Computer Interaction Laboratory at the University of Wisconsin-Madison, suggests that robots may avoid triggering the misinformation effect simply because we are not familiar with them and so do not pick up on behavioural cues, which we do with people. "We have good, strong mental models of humans, but we don't have good models of robots," he says.












The misinformation effect doesn't only effect adults; children are particularly susceptible, explains the psychologist on the project, Deborah Eakin. Bethel's ultimate goal is to use robots to help gather testimony from children, who tend to pick up on cues contained in questions. "It's a huge problem," Bethel says.












At the Starkville Police Department, a 10-minute drive from the university, officers want to use such a robotic interviewer to gather more reliable evidence from witnesses. The police work hard to avoid triggering the misinformation effect, says officer Mark Ballard, but even an investigator with the best intentions can let biases slip into the questions they ask a witness.












Children must usually be taken to a certified forensic child psychologist to be interviewed, something which can be difficult if the interviewer works in another jurisdiction. "You might eliminate that if you've got a robot that's certified for forensics investigations, and it's tough to argue that the robot brings any memories or theories with it from its background," says Ballard.


















The study is "very interesting, very intriguing", says Selma Sabanovic, a roboticist at Indiana University. She is interested to see what happens as Bethel repeats the experiment with different robot shapes and sizes. She also poses a slightly darker question: "How would you design a robot to elicit the kind of information you want?"












This article appeared in print under the headline "The robot inquisition"




















It's all about how you say it







When providing new information, rather than helping people recall events (see main story), a robot's rhetoric and body language can make a big difference to how well it gets its message across.









Bilge Mutlu of the University of Wisconsin-Madison had two robots compete to guide humans through a virtual city. He found that the robot which used rhetorical language drew more people to follow it. For example, the robot saying "this zoo will teach you about different parts of the world" did less well than one saying "visiting this zoo feels like travelling the world, without buying a plane ticket". The work will be presented at the Human-Robot Interaction conference in Tokyo next month.











































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Malaysian state scales back Borneo dam plans






KUCHING, Malaysia: A Malaysian state minister Friday said the government would not push ahead with controversial plans to build 12 dams on Borneo island, after outrage from local tribes and environmentalists.

The proposals sparked fears that the dams would destroy pristine rainforests, endanger wildlife, and displace natives in Sarawak, a Malaysian state crossed by powerful rivers with rich jungle habitats.

"It is not a firm plan to build 12 dams. I don't think we will need that. We will only need four of them," James Masing, Sarawak's state minister of land development, told AFP in an interview.

Masing said the government was backing off in response to widespread criticism. Protests over the years have seen activists and locals staging blockades of roads into dam areas.

"I'm pleased that this type of thing (protests) takes place. Not all that we do is correct, and this shows we need to refine our plans and think again," he said.

The government mooted plans for the dams as part of an industrial development drive to boost the resource-rich state's backward economy.

But the now-complete Bakun mega-dam deep in the interior has been dogged for years by allegations of corruption in construction contracts, the flooding of a huge swathe of rainforest and displacement of thousands of local tribespeople.

Besides Bakun, another dam at Murum is nearing completion and two others are in the planning stages.

The four dams -- at Bakun, Murum, Baleh and Baram -- are already expected to put out nearly 6,000 megawatts of power, six times what Sarawak currently uses, Masing said.

"The protests are becoming more vocal on the ground so (the dam rethink) is a very good development for me," said Peter Kallang, member of a Sarawak tribe and chairman of SAVE Rivers, an NGO that has campaigned against the dams.

However, he said plans for the Baram and Baleh dams should be scrapped as well, noting that the Baram dam would displace about 20,000 people, compared to about 10,000 at Bakun, and destroy irreplaceable forest.

He said SAVE Rivers last month organised a floating protest along the Baram river that cruised down river for three days and was met with support along the way by local tribespeople.

The Swiss-based jungle-protection group Bruno Manser Fund says about 90 percent of Sarawak's rainforests have been damaged as the state government has opened up virgin forest to loggers and palm-oil plantations.

Critics also allege chief minister Taib Mahmud, who has ruled Sarawak since 1981, has enriched himself and his family through corrupt timber and other dealings, and have called the dams white elephants.

Taib has dismissed the corruption allegations.

Critics of Taib accuse the federal government of failing to act against him because his tight control of Sarawak has kept it a vital ruling coalition stronghold.

- AFP



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Intel-based phablet on the way from Asus



Asus MeMO Pad: the Fonepad may be a higher end version of the MeMO Pad.

Asus MeMO Pad: the Fonepad may be a higher end version of the MeMO Pad.



(Credit:
Asus)


Asus, the maker of Google's Nexus 7, will debut a 7-inch Fonepad at Mobile World Congress later this month, according to sources familiar with the product.


Reports say the Fonepad may be priced in the same ballpark as -- or slightly higher than -- the
Nexus 7 but below the MeMO Pad, which Asus launched Friday in Asia.


Leaked photos show it with an aluminum body and an Intel badge on the back.


An independent source familiar with the product has confirmed the Fonepad with CNET.


Widely-reported specifications include an Intel Atom processor with Imagination PowerVR SGX540 graphics, a 1,280x800 IPS touch screen, 1GB of RAM, storage ranging up to 32GB, and a front-facing 1.2-megapixel camera.


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Asteroid to Make Closest Flyby in History


Talk about too close for comfort. In a rare cosmic encounter, an asteroid will barnstorm Earth next week, missing our planet by a mere 17,200 miles (27,700 kilometers).

Designated 2012 DA14, the space rock is approximately 150 feet (45 meters) across, and astronomers are certain it will zip harmlessly past our planet on February 15—but not before making history. It will pass within the orbits of many communications satellites, making it the closest flyby on record. (Read about one of the largest asteroids to fly by Earth.)

"This is indeed a remarkably close approach for an asteroid this size," said Paul Chodas, a research scientist at NASA's Jet Propulsion Laboratory Near Earth Object (NEO) program office in Pasadena, California.

"We estimate that an asteroid of this size passes this close to the Earth only once every few decades."

The giant rock—half a football field wide—was first spotted by observers at the La Sagra Observatory in southern Spain a year ago, soon after it had just finished making a much more distant pass of the Earth at 2.6 million miles (4.3 million kilometers) away.

This time around however, on February15 at 2:24 pm EST, the asteroid will be passing uncomfortably close—ten times closer than the orbit of the moon—flying over the eastern Indian Ocean near Sumatra (map). (Watch: "Moon 101.")

Future Impact?

Chodas and his team have been keeping a close eye on the cosmic intruder, and orbital calculations of its trajectory show that there is no chance for impact.

But the researchers have not yet ruled out future chances of a collision. This is because asteroids of this size are too faint to be detected until they come quite close to the Earth, said Chodas.

"There is still a tiny chance that it might hit us on some future passage by the Earth; for example there is [a] 1-in-200,000 chance that it could hit us in the year 2080," he said.

"But even that tiny chance will probably go away within the week, as the asteroid's orbit gets tracked with greater and greater accuracy and we can eliminate that possibility."

Earth collision with an object of this size is expected to occur every 1,200 years on average, said Donald Yeomans, NEO program manager, at a NASA news conference this week.

DA14 has been getting closer and closer to Earth for quite a while—but this is the asteroid's closest approach in the past hundred years. And it probably won't get this close again for at least another century, added Yeomans.

While no Earth impact is possible next week, DA14 will pass 5,000 miles inside the ring of orbiting geosynchronous weather and communications satellites; so all eyes are watching the space rock's exact trajectory. (Learn about the history of satellites.)

"It's highly unlikely they will be threatened, but NASA is working with satellite providers, making them aware of the asteroid's pass," said Yeomans.

Packing a Punch

Experts say an impact from an object this size would have the explosive power of a few megatons of TNT, causing localized destruction—similar to what occurred in Siberia in 1908.

In what's known as the "Tunguska event," an asteroid is thought to have created an airburst explosion which flattened about 750 square miles (1,200 square kilometers) of a remote forested region in what is now northern Russia (map).

In comparison, an impact from an asteroid with a diameter of about half a mile (one kilometer) could temporarily change global climate and kill millions of people if it hit a populated area.

Timothy Spahr, director of the Minor Planet Center at Cambridge, Massachusetts, said that while small objects like DA14 could hit Earth once a millennia or so, the largest and most destructive impacts have already been catalogued.

"Objects of the size that caused the extinction of the dinosaurs have all been discovered," said Spahr. (Learn about what really happened to the dinosaurs.)

A survey of nearly 9,500 near-Earth objects half a mile (one kilometer) in diameter is nearly complete. Asteroid hunters expect to complete nearly half of a survey of asteroids several hundred feet in diameter in the coming years.

"With the existing assets we have, discovering asteroids rapidly and routinely, I continue to expect the world to be safe from impacts in the future," added Spahr.


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Door-to-Door Search for Suspected Cop Killer













More than 100 police officers were going door-to-door and searching for new tracks in the snow in the hopes of catching suspected cop killer Christopher Dorner overnight in Big Bear Lake, Calif., before he strikes again as laid out in his chilling online manifesto.


Police held a news conference late Thursday, alerting the residents near Big Bear Lake that Dorner was still on the loose after finding his truck burning around 12:45 p.m. local time.


San Bernardino County Sheriff's spokeswoman Cindy Bachman said the authorities can't say for certain he's not in the area. More than half of the 400 homes in the area have been searched by police, who are traveling in two-man teams. Bachman urged people in the area to not answer the door, unless you know the person or law enforcement in uniform.


After discovering Dorner's burning truck near a Bear Mountain ski resort, police discovered tracks in the snow leading away from the vehicle. The truck has been taken to the San Bernardino County Sheriffs' crime lab.


Read More About Chris Dorner's Allegations Against the LAPD


Bachman would not comment on Dorner's motive for leaving the car or its contents, citing the ongoing investigation. Police are no aware of Dorner having any ties to others in the area.








Christopher Dorner: Ex-Cop Wanted in Killing Spree Watch Video









Engaged California Couple Found Dead in Car Watch Video







She added that the search in the area would continue as long as the weather cooperates. However, a snowstorm was forecast for the area. About three choppers were being used overnight, but weather conditions were deteriorating, according to Bachman.


Dorner, a former Los Angeles police officer and Navy reservist, is suspected of killing one police officer and injured two others Thursday morning in Riverside, Calif. He was also accused of killing two civilians on Sunday. And he allegedly released an angry "manifesto" airing grievances against police and warning of coming violence toward cops.


In the manifesto Dorner published online, he threatened at least 12 people by name, along with their families.
"Your lack of ethics and conspiring to wrong a just individual are over. Suppressing the truth will leave to deadly consequences for you and your family," Dorner wrote in his manifesto.


One passage from the manifesto read, "I will bring unconventional and asymmetrical warfare to those in LAPD uniform whether on or off duty."


"I never had the opportunity to have a family of my own," it read. "I'm terminating yours."


Hours after the extensive manhunt dragged police to Big Bear Lake, CNN's Anderson Cooper said Dorner had sent him a package at his New York office that arrived on Feb. 1, though Cooper said he never knew about the package until Thursday. It contained a DVD of court testimony, with a Post-It note signed by Dorner claiming, "I never lied! Here is my vindication."


PHOTOS: Former LAPD Officer Suspected in Shootings


It also contained a keepsake coin bearing the name of former Los Angeles Police Chief William J. Bratton that came wrapped in duct tape, Cooper said. The duct tape bore the note, "Thanks, but no thanks Will Bratton."


Bratton told Cooper on his program, "Anderson Cooper 360," that he believed he gave Dorner the coin as he was headed overseas for the Navy, Bratton's practice when officers got deployed abroad. Though a picture has surfaced of Bratton, in uniform, and Dorner, in fatigues, shaking hands, Bratton told Cooper he didn't recall Dorner or the meeting.






Read More..

Today on New Scientist: 6 February 2013







Open Richard III DNA evidence for peer review

A good case has been made that a skeleton unearthed from a car park is that of the last Plantagenet king of England - it's time to share the data



Universal bug sensor takes guesswork out of diagnosis

A machine that can identify all bacteria, viruses and fungi known to cause disease in humans should speed up diagnosis and help to reduce antibiotic resistance



Choking China: The struggle to clear Beijing's air

As pollution levels return to normal in China's capital after a record-breaking month of smog, what can be done to banish the smog?



Genes mix across borders more easily than folk tales

Analysing variations in folk tales using genetic techniques shows that people swap genes more readily than stories, giving clues to how cultures evolve



Sleep and dreaming: Slumber at the flick of a switch

Wouldn't it be wonderful to pack a good night's sleep into fewer hours? Technology has the answer - and it could treat depression and even extend our lives too



Closest Earth-like planet may be 13 light years away

A habitable exoplanet should be near enough for future telescopes to probe its atmosphere for signs of life



Lifelogging captures a real picture of your health

How can lifelogging - wearing a camera round your neck to record your every move - reveal what's healthy and unhealthy in the way we live?



Musical brains smash audio algorithm limits

The mystery of how our brains perceive sound has deepened, now that musicians have broken a limit on sound perception imposed by the Fourier transform



Magnitude 8 earthquake strikes Solomon Islands

A major earthquake has caused a small tsunami in the Pacific Ocean, killing at least five people



Nuclear knock-backs on UK's new reactors and old waste

Plans to build new reactors in the UK are stalling as yet another company pulls out, and there is still nowhere to store nuclear waste permanently



Amateur astronomer helps Hubble snap galactic monster

An amateur astronomer combined his pictures with images from the Hubble archive to reveal the true nature of galactic oddball M106



Nightmare images show how lack of sleep kills

Fatigue has been blamed for some of worst human-made disasters of recent decades. Find out more in our image gallery




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Philippines' Aquino to visit rebel stronghold






MANILA: Philippine President Benigno Aquino will next week make a historic visit to the stronghold of the country's main Muslim rebel force in an effort to push forward peace talks, his office said on Thursday.

Aquino's trip on Monday to the outskirts of the 12,000-member Moro Islamic Liberation Front's (MILF's) main base in the country's south will be the first peace mission there by a president since the insurgency began in the 1970s.

Aquino and MILF chairman Murad Ebrahim will meet as they witness the launch of a social welfare project for mainly Muslim residents of communities where the rebels exert an influence, Aquino spokesman Ricky Carandang told AFP.

"It's not a formal meeting, but their presence will underscore the commitment and optimism that both sides have that a final resolution to the peace process will be achieved," he said.

"The launch of the social programmes will show concrete benefits of peace."

At the launch, health insurance cards will be distributed to residents, emergency jobs offered to adults and scholarships given to their children, Aquino's office said.

The MILF has been fighting since the 1970s for independence in Mindanao, the southern third of the mainly Catholic Philippines that the country's Muslim minority claim as their ancestral homeland.

An estimated 150,000 people have died in the conflict.

The MILF signed a "framework agreement" with Aquino's government in October last year committing both sides to form a new autonomous entity on Mindanao by 2016, when the president ends his six-year term.

The MILF vowed to give up its quest for an independent homeland in exchange for significant power and wealth-sharing in a new autonomous region.

Negotiators from both sides have been meeting in neighbouring Malaysia to thrash out what they described as contentious items in the plan.

Cabinet secretary Jose Almendras said Monday's event would be held at an MILF-run school that residents say is about half a kilometre (a third of a mile) from the main gate of the rebels' headquarters, Camp Darapanan.

"It's very close to the MILF camp," Almendras said.

MILF spokesman Mike Pasigan welcomed the imminent launch of the social welfare project.

"The programme will further strengthen the collaboration between the government and the MILF as we build on the gains of the peace process," he said in a statement.

-AFP/fl



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Microsoft goes after Google with attack on Gmail privacy



Microsoft takes aim at Gmail.



(Credit:
Screenshot by Steven Musil/CNET)



Microsoft is ratcheting up its attacks on Google with a campaign urging users of the Web giant's e-mail service to dump Gmail for its own Outlook.com over privacy concerns.


In its national campaign titled "Don't get scroogled by Gmail," Microsoft dredges up an old issue with Google's free e-mail service: Google scans users' e-mails to determine relevant advertisements to place alongside the messages.


Microsoft says a study it commissioned found that 70 percent of consumers polled were unaware that major e-mail providers "routinely" read e-mail to sell ads and that nearly 90 percent disapproved of the practice, which has been criticized in the past.


"Outlook.com believes your privacy is not for sale," Stefan Weitz, senior director of Online Services at Microsoft said in a statement. "We believe people should have choice and control over their private email messages, whether they are sharing banking information or pictures of their family or discussing their medical history."


The anti-Gmail effort is Redmond's latest salvo at Google. The European Commission has spent the past two years investigating Google after competitors such as Microsoft complained that Google adjusted search results to bring up its products and Web sites first. The U.S. Federal Trade Commission recently found that Google's search results were not biased in favor of its own results in a way that was anticompetitive -- a decision that was largely seen as a victory for the Web giant.

Introduced in 2004, Gmail was immediately slammed as a horrific invasion into Internet users' privacy by lawmakers and privacy advocates alike. The unexpectedly criticism contended that it should be illegal for a company to scan the text of its customers' e-mail correspondence and display relevant advertising. The practice has led to occasional lawsuits against the Web giants.




However, Google has long maintained that its automated scanning technology did not invade users' privacy.


"Advertising keeps Google and many of the websites and services Google offers free of charge," Google said in a statement. "We work hard to make sure that ads are safe, unobtrusive and relevant. No humans read your email or Google account information in order to show you advertisements or related information."


As of last October, Gmail was a close-second to Yahoo as the No. 1 free e-mail provider in the U.S., claiming 69.1 million users to Yahoo's 76.7 million, according to ComScore. Microsoft's Hotmail was a distant third with 35.5 million, according to the market researcher. Microsoft announced last year that Hotmail would be phased out for a rebranded Outlook.com.


While Microsoft also shows ads with its Outlook service, the tech giant asserts it automatically scans the contents of users' e-mails only to prevent spam, malware, and other unwanted activity

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Humans Swap DNA More Readily Than They Swap Stories

Jane J. Lee


Once upon a time, someone in 14th-century Europe told a tale of two girls—a kind one who was rewarded for her manners and willingness to work hard, and an unkind girl who was punished for her greed and selfishness.

This version was part of a long line of variations that eventually spread throughout Europe, finding their way into the Brothers Grimm fairytales as Frau Holle, and even into Shakespeare's The Merchant of Venice. (Watch a video of the Frau Holle fairytale.)

In a new study, evolutionary psychologist Quentin Atkinson is using the popular tale of the kind and unkind girls to study how human culture differs within and between groups, and how easily the story moved from one group to another.

Atkinson, of the University of Auckland in New Zealand, and his co-authors employed tools normally used to study genetic variation within a species, such as people, to look at variations in this folktale throughout Europe.

The researchers found that there were significant differences in the folktale between ethnolinguistic groups—or groups bound together by language and ethnicity. From this, the scientists concluded that it's much harder for cultural information to move between groups than it is for genes.

The study, published February 5 in Proceedings of the Royal Society B, found that about 9 percent of the variation in the tale of the two girls occurred between ethnolinguistic groups. Previous studies looking at the genetic diversity across groups in Europe found levels of variation less than one percent.

For example, there's a part of the story in which the girls meet a witch who asks them to perform some chores. In different renditions of the tale, the meeting took place by a river, at the bottom of a well, or in a cave. Other versions had the girls meeting with three old men or the Virgin Mary, said Atkinson.

Conformity

Researchers have viewed human culture through the lens of genetics for decades, said Atkinson. "It's a fair comparison in the sense that it's just variation across human groups."

But unlike genes, which move into a population relatively easily and can propagate randomly, it's harder for new ideas to take hold in a group, he said. Even if a tale can bridge the "ethnolinguistic boundary," there are still forces that might work against a new cultural variation that wouldn't necessarily affect genes.

"Humans don't copy the ideas they hear randomly," Atkinson said. "We don't just choose ... the first story we hear and pass it on.

"We show what's called a conformist bias—we'll tend to aggregate across what we think everyone else in the population is doing," he explained. If someone comes along and tells a story a little differently, most likely, people will ignore those differences and tell the story like everyone else is telling it.

"That makes it more difficult for new ideas to come in," Atkinson said.

Cultural Boundaries

Atkinson and his colleagues found that if two versions of the folktale were found only six miles (ten kilometers) away from each other but came from different ethnolinguistic groups, such as the French and the Germans, then those versions were as different from each other as two versions taken from within the same group—say just the Germans—located 62 miles (100 kilometers) away from each other.

"To me, the take-home message is that cultural groups strongly constrain the flow of information, and this enables them to develop highly local cultural traditions and norms," said Mark Pagel, of the University of Reading in the U.K., who wasn't involved in the new study.

Pagel, who studies the evolution of human behavior, said by email that he views cultural groups almost like biological species. But these groups, which he calls "cultural survival vehicles," are more powerful in some ways than our genes.

That's because when immigrants from a particular cultural group move into a new one, they bring genetic diversity that, if the immigrants have children, get mixed around, changing the new population's gene pool. But the new population's culture doesn't necessarily change.

Atkinson plans to keep using the tools of the population-genetics trade to see if the patterns he found in the variations of the kind and unkind girls hold true for other folktale variants in Europe and around the world.

Humans do a lot of interesting things, Atkinson said. "[And] the most interesting things aren't coded in our DNA."


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