Slashdot Mirror

Hugh Pickens DOT Com writes "Joseph Stromberg writes at the Smithsonian that one afternoon in October 2005, neuroscientist James Fallon was sifting through thousands of PET scans to find anatomical patterns in the brain that correlated with psychopathic tendencies in the real world. 'Out of serendipity, I was also doing a study on Alzheimer's and as part of that, had brain scans from me and everyone in my family right on my desk,' writes Fallon. 'I got to the bottom of the stack, and saw this scan that was obviously pathological.' When he looked up the code, he was greeted by an unsettling revelation: the psychopathic brain pictured in the scan was his own. When he underwent a series of genetic tests, he got more bad news. 'I had all these high-risk alleles for aggression, violence and low empathy,' he says, such as a variant of the MAO-A gene that has been linked with aggressive behavior. It wasn't entirely a shock to Fallon, as he'd always been aware that he was someone especially motivated by power and manipulating others. Additionally, his family line included seven alleged murderers, including Lizzie Borden, infamously accused of killing her father and stepmother in 1892. Many of us would hide this discovery and never tell a soul, out of fear or embarrassment of being labeled a psychopath. Perhaps because boldness and disinhibition are noted psychopathic tendencies, Fallon has gone in the opposite direction, telling the world about his finding in a TED Talk, an NPR interview and now a new book published last month, The Psychopath Inside. 'Since finding all this out and looking into it, I've made an effort to try to change my behavior,' says Fallon. 'I've more consciously been doing things that are considered "the right thing to do," and thinking more about other people's feelings.'"

plover writes "The Seattle Times reports, 'The Smithsonian Institution is launching a new 3D scanning and printing initiative to make more of its massive collection accessible to schools, researchers and the public worldwide. A small team has begun creating 3D models of some key objects representing the breadth of the collection at the world's largest museum complex. Some of the first 3D scans include the Wright brothers' first airplane, Amelia Earhart's flight suit, casts of President Abraham Lincoln's face during the Civil War and a Revolutionary War gunboat. Less familiar objects include a former slave's horn, a missionary's gun from the 1800s and a woolly mammoth fossil from the Ice Age. They are pieces of history some people may hear about but rarely see or touch.' So far they have posted 20 models, with the promise of many more to come." They even have a model supernova remnant.

RenderSeven writes "Science has so far been at a loss to explain why tapping a beer bottle with another causes it to explosively foam over. Thanks to a grant from the Spanish Ministry of Economy and Competitiveness, a research team at the University of Madrid studying fluid mechanics has found the answer with some fascinating slow-motion video. Their soon-to-be-published paper found that tapping the bottle (or shooting it with a laser) causes a series of compression and expansion waves, that generate unstable buoyant plumes, quickly turning most of the liquid into foam. PhysicsBuzz notes that the process is very rapid and nearly unstoppable once started."

cold fjord writes with this excerpt from the BBC: "Astronomers have detected the tell-tale signs of a shattered asteroid being eaten by a dead star, or white dwarf. The Hubble telescope spotted the event some 150 light-years from Earth. The researchers tell Science Magazine that the chemical signatures in the star's atmosphere indicate the asteroid must contain a lot of water. This makes it the first time both water and a rocky surface — key components for habitable planets — have been found together beyond our Solar System. ... Of the 1,000 planets so far identified beyond our Solar System, none has been definitively associated with the presence of water." More at Smithsonian Magazine.

Hugh Pickens DOT Com writes "Joseph Stromberg reports at the Smithsonian that if there's one group has an obvious and immediate financial stake in climate change, it's the insurance industry and in recent years, insurance industry researchers who attempt to determine the annual odds of catastrophic weather-related disasters say they're seeing something new. 'Our business depends on us being neutral. We simply try to make the best possible assessment of risk today, with no vested interest,' says Robert Muir-Wood, the chief scientist of Risk Management Solutions (RMS), a company that creates software models to allow insurance companies to calculate risk. Most insurers, including the reinsurance companies that bear much of the ultimate risk in the industry, have little time for the arguments heard in some right-wing circles that climate change isn't happening, and are quite comfortable with the scientific consensus that burning fossil fuels is the main culprit of global warming. 'Insurance is heavily dependent on scientific thought,' says Frank Nutter, president of the Reinsurance Association of America. 'It is not as amenable to politicized scientific thought.' A pronounced shift can be seen in extreme rainfall events, heat waves and wind storms and the underlying reason is climate change, says Muir-Wood, driven by rising greenhouse gas emissions. 'The first model in which we changed our perspective is on U.S. Atlantic hurricanes. Basically, after the 2004 and 2005 seasons, we determined that it was unsafe to simply assume that historical averages still applied,' he says. 'We've since seen that today's activity has changed in other particular areas as well—with extreme rainfall events, such as the recent flooding in Boulder, Colorado, and with heat waves in certain parts of the world.' Muir-Wood puts his money where his mouth is. 'I personally wouldn't invest in beachfront property anymore,' he says, noting the steady increase in sea level we're expecting to see worldwide in the coming century, on top of more extreme storms. 'And if you're thinking about it, I'd calculate quite carefully how far back you'd have to be in the event of a hurricane.'"

An anonymous reader writes "New research out of the University of North Carolina now shows factory farm workers actually carry drug-resistant staph. Europe has long ago banned the use of antibiotics in livestock, but the FDA remains behind the curve with a partial ban. Thanks to large industrial farming operations, we all remain continuously at risk as our last line of antibiotics is wasted on animals."

Hugh Pickens writes writes "Not that there's anything wrong with that — as the Guardian reports that Facebook users are unwittingly revealing their sexual orientation, drug use and political beliefs– using only public 'like' updates. A study of 58,000 Facebook users in the US found that sensitive personal characteristics about people can be accurately inferred from information in the public domain. Researchers were able to accurately infer a Facebook user's race, IQ, sexuality, substance use, personality or political views (PDF) using only a record of the subjects and items they had 'liked' on Facebook – even if users had chosen not to reveal that information. 'It is good that people's behavior is predictable because it means Facebook can suggest very good stories on your news feed,' says Michal Kosinski, 'But what is shocking is that you can use the same data to predict your political views or your sexual orientation. This is something most people don't realize you can do.' For example, researchers were able to predict whether men were homosexual with 88% accuracy by their likes of Facebook pages such as 'Human Rights Campaign' and 'Wicked the Musical' – even if those users had not explicitly shared their sexuality on the site. According to the study other personality traits linked to predictive likes include for High IQ — 'The Godfather,' 'Lord of the Rings,' 'The Daily Show'; for Low IQ — 'Harley Davidson,' 'I Love Being A Mom,' 'Tyler Perry'; and for male heterosexuality — 'Wu Tang Clan,' 'Shaq,' and 'Being Confused after Waking Up from Naps.' Facebook's default privacy settings mean that your 'likes' are public to anyone and Facebook's own algorithms already use these likes to dictate what stories end up in users' news feeds, while advertisers can access them to determine which are the most effective ads to show you as you browse."

Hugh Pickens writes writes "The first dogs descended from wolves about 14,000 years ago but according to Brian Hare and Vanessa Woods humans didn't domesticate dogs — dogs sought out humans and domesticated us. Humans have a long history of eradicating wolves, rather than trying to adopt them which raises the question: How was the wolf tolerated by humans long enough to evolve into the domestic dog? 'The short version is that we often think of evolution as being the survival of the fittest, where the strong and the dominant survive and the soft and weak perish. But essentially, far from the survival of the leanest and meanest, the success of dogs comes down to survival of the friendliest.' Most likely, it was wolves that approached us, not the other way around, probably while they were scavenging around garbage dumps on the edge of human settlements. The wolves that were bold but aggressive would have been killed by humans, and so only the ones that were bold and friendly would have been tolerated. In a few generations, these friendly wolves became distinctive from their more aggressive relatives with splotchy coats, floppy ears, wagging tails. But the changes did not just affect their looks but their psychology. Protodogs evolved the ability to read human gestures. 'As dog owners, we take for granted that we can point to a ball or toy and our dog will bound off to get it,' write Hare and Woods. 'But the ability of dogs to read human gestures is remarkable. Even our closest relatives — chimpanzees and bonobos — can't read our gestures as readily as dogs can. 'With this new ability, these protodogs were worth knowing. People who had dogs during a hunt would likely have had an advantage over those who didn't. Finally when times were tough, dogs could have served as an emergency food supply and once humans realized the usefulness of keeping dogs as emergency food, it was not a huge jump to realize plants could be used in a similar way.' This is the secret to the genius of dogs: It's when dogs join forces with us that they become special," conclude Hare and Woods. 'Dogs may even have been the catalyst for our civilization.'"

An anonymous reader writes "A study done by a Hungarian physicist found that of the billions of websites and over a trillion objects on the web, any given two are separated by no more than 19 clicks. 'Distributed across the entire web, though, are a minority of pages—search engines, indexes and aggregators—that are very highly connected and can be used to move from area of the web to another. These nodes serve as the "Kevin Bacons" of the web, allowing users to navigate from most areas to most others in less than 19 clicks. Barabási credits this "small world" of the web to human nature—the fact that we tend to group into communities, whether in real life or the virtual world. The pages of the web aren't linked randomly, he says: They're organized in an interconnected hierarchy of organizational themes, including region, country and subject area. Interestingly, this means that no matter how large the web grows, the same interconnectedness will rule.'"

New submitter kyjellyfish writes "Research published in the journal PLOS ONE, suggests that your parents 'Left or 'Right' party affiliations are not the only factor at work shaping a person's political identity. Differences in opinion between 'Lefties' and 'Righties' may reflect specific physiological processes. In research performed over 10 years ago, brain scans showed that London cab drivers' gray matter grew larger to help them store a mental map of the city." From the article: "Other scans have shown that brain regions associated with risk and uncertainty, such as the fear-processing amygdala, differ in structure in liberals and conservatives. And different architecture means different behavior. Liberals tend to seek out novelty and uncertainty, while conservatives exhibit strong changes in attitude to threatening situations. The former are more willing to accept risk, while the latter tends to have more intense physical reactions to threatening stimuli."

i_want_you_to_throw_ writes "Details of Jaron Lanier's crusade against Web 2.0 continue in an article at Smithsonian Magazine. The article expands upon Lanier's criticism of Web 2.0. It's an interesting read, with Lanier suggesting we are outsourcing ourselves into insignificant advertising-fodder and making an audacious connection between techno-utopianism, the rise of the machines and the Great Recession. From the article: 'As far back as the turn of the century, he singled out one standout aspect of the new web culture—the acceptance, the welcoming of anonymous commenters on websites—as a danger to political discourse and the polity itself. At the time, this objection seemed a bit extreme. But he saw anonymity as a poison seed. The way it didn’t hide, but, in fact, brandished the ugliness of human nature beneath the anonymous screen-name masks. An enabling and foreshadowing of mob rule, not a growth of democracy, but an accretion of tribalism. ... 'This is the thing that continues to scare me. You see in history the capacity of people to congeal—like social lasers of cruelty. That capacity is constant. ... We have economic fear combined with everybody joined together on these instant twitchy social networks which are designed to create mass action. What does it sound like to you? It sounds to me like the prequel to potential social catastrophe. I’d rather take the risk of being wrong than not be talking about that.'"

DevotedSkeptic sends this excerpt about research that found a correlation between the use of a common food-packaging chemical and obesity rates. "Since the 1960s, manufacturers have widely used the chemical bisphenol-A (BPA) in plastics and food packaging. Only recently, though, have scientists begun thoroughly looking into how the compound might affect human health—and what they've found has been a cause for concern. Starting in 2006, a series of studies, mostly in mice, indicated that the chemical might act as an endocrine disruptor (by mimicking the hormone estrogen), cause problems during development and potentially affect the reproductive system, reducing fertility. After a 2010 Food and Drug Administration report warned that the compound could pose an especially hazardous risk for fetuses, infants and young children, BPA-free water bottles and food containers started flying off the shelves. In July, the FDA banned the use of BPA in baby bottles and sippy cups, but the chemical is still present in aluminum cans, containers of baby formula and other packaging materials. Now comes another piece of data on a potential risk from BPA but in an area of health in which it has largely been overlooked: obesity. A study by researchers from New York University, published today in the Journal of the American Medical Association, looked at a sample of nearly 3,000 children and teens across the country and found a 'significant' link between the amount of BPA in their urine and the prevalence of obesity."

DevotedSkeptic sends this excerpt from SmithsonianMag: "The humble tardigrade, also known as a 'waterbear' or 'moss piglet,' is an aquatic eight-legged animal that typically grows no longer than one millimeter in length. Most tardigrades (there are more than 1,000 identified species) have a fairly humdrum existence, living out their days on a moist piece of moss or in the sediment at the bottom of a lake and feeding on bacteria or plant life. In 2007, a group of European researchers pushed the resilience of this extraordinary animal even further, exposing a sample of dehydrated tardigrades to the vacuum and solar radiation of outer space for 10 full days. When the specimens were returned to earth and rehydrated, 68 percent of those that were shielded from the radiation survived, and even a handful of those with no radiation protection came back to life and produced viable offspring. How do the little tardigrades survive such a harsh environment? Although amateur tardigrade enthusiast Mike Shaw recently made waves by postulating that the animals may be equipped to survive in outer space because they originally came from other planets, scientists are certain that the creatures developed their uncommon toughness here on earth."

DevotedSkeptic writes "Caltech scientists have created an ultra-sensitive device that can weigh an individual molecule for the first time. The device is invisible to the naked eye and vibrates at a specific frequency based on the molecule resting on top of its bridge like structure." More in the Caltech press release. This is an improvement on a design from 2009 that also could theoretically weigh a single molecule, but in practice could not because the position along the "bridge" affected the result. Now the researchers have figured out how to measure the position of the molecule on the bridge and compensate. The device is built using semiconductor fabrication techniques "...making it easy to mass-produce. That's crucial, since instruments that are efficient enough for doctors or biologists to use will need arrays of hundreds to tens of thousands of these bridges working in parallel. 'With the incorporation of the devices that are made by techniques for large-scale integration, we're well on our way to creating such instruments,' Roukes says. This new technology, the researchers say, will enable the development of a new generation of mass-spectrometry instruments." The full article is behind a paywall unfortunately.

Lasrick writes "I Love this article in Smithsonian by Richard Conniff. One of my geology professors was in grad school when the theories for plate tectonics, seafloor spreading, etc., were introduced; he remembered how most of his professors denounced them as ridiculous. The article chronicles the introduction of continental drift theory, starting a century ago with Alfred Wegener. From the article: 'It was a century ago this spring that a little-known German meteorologist named Alfred Wegener proposed that the continents had once been massed together in a single supercontinent and then gradually drifted apart. He was, of course, right. Continental drift and the more recent science of plate tectonics are now the bedrock of modern geology, helping to answer vital questions like where to find precious oil and mineral deposits, and how to keep San Francisco upright. But in Wegener’s day, geological thinking stood firmly on a solid earth where continents and oceans were permanent features.'"

First time accepted submitter TheSeventh writes "Simpsons creator Matt Groening has revealed the location of the real Springfield: It's in Oregon. In an interview with Smithsonian magazine, Groening credits the name to the hit TV show Father Knows Best. The show 'took place in the town of Springfield, and I was thrilled because I imagined that it was the town next to Portland, my hometown,' he says. 'When I grew up, I realized it was just a fictitious name. I also figured out that Springfield was one of the most common names for a city in the U.S. In anticipation of the success of the show, I thought, 'This will be cool; everyone will think it's their Springfield.' And they do.'"

bdking writes "Former White House cybersecurity advisor Richard Clarke says state-sanctioned Chinese hackers are stealing R&D from U.S. companies, threatening the long-term competitiveness of the nation. He said, 'The U.S. government is involved in espionage against other governments. There’s a big difference, however, between the kind of cyberespionage the United States government does and China. The U.S. government doesn’t hack its way into Airbus and give Airbus the secrets to Boeing [many believe that Chinese hackers gave Boeing secrets to Airbus]. We don’t hack our way into a Chinese computer company like Huawei and provide the secrets of Huawei technology to their American competitor Cisco. [He believes Microsoft, too, was a victim of a Chinese cyber con game.] We don’t do that. ... We hack our way into foreign governments and collect the information off their networks. The same kind of information a CIA agent in the old days would try to buy from a spy. ... Diplomatic, military stuff but not commercial competitor stuff.'"

Hugh Pickens writes "According to new research by British historian Tim Maltin, records by several ships in the area where the Titanic sank show atmospheric conditions were ripe for super refraction, a bending of light that caused a false horizon, concealing the iceberg that sank the Titanic in a mirage layer, which prevented the Titanic's lookouts from seeing the iceberg in time to avoid collision. According to the new theory, Titanic was sailing from Gulf Stream waters into the frigid Labrador Current, where the air column was cooling from the bottom up. This created a thermal inversion, with layers of cold air below layers of warmer air, creating a superior mirage. The theory also explains why the freighter Californian was unable to identify the Titanic on the moonless night, because even though the Titanic sailed into the Californian's view, it appeared too small to be the great ocean liner. The abnormally stratified air may also have disrupted signals sent by the Titanic by Morse Lamp to the Californian to no avail. This is not the first time atmospheric conditions have been postulated as a factor in the disaster that took 1,517 lives. An investigation in 1992 by the British government's Marine Accident Investigation Branch also suggested that super refraction may have played a role in the disaster (PDF, see page 13), but that possibility went unexplored until Maltin mined weather records, survivors' testimony and long-forgotten ships' logs."

Hugh Pickens writes "According to new research by British historian Tim Maltin, records by several ships in the area where the Titanic sank show atmospheric conditions were ripe for super refraction, a bending of light that caused a false horizon, concealing the iceberg that sank the Titanic in a mirage layer, which prevented the Titanic's lookouts from seeing the iceberg in time to avoid collision. According to the new theory, Titanic was sailing from Gulf Stream waters into the frigid Labrador Current, where the air column was cooling from the bottom up. This created a thermal inversion, with layers of cold air below layers of warmer air, creating a superior mirage. The theory also explains why the freighter Californian was unable to identify the Titanic on the moonless night, because even though the Titanic sailed into the Californian's view, it appeared too small to be the great ocean liner. The abnormally stratified air may also have disrupted signals sent by the Titanic by Morse Lamp to the Californian to no avail. This is not the first time atmospheric conditions have been postulated as a factor in the disaster that took 1,517 lives. An investigation in 1992 by the British government's Marine Accident Investigation Branch also suggested that super refraction may have played a role in the disaster (PDF, see page 13), but that possibility went unexplored until Maltin mined weather records, survivors' testimony and long-forgotten ships' logs."

Hugh Pickens writes "According to new research by British historian Tim Maltin, records by several ships in the area where the Titanic sank show atmospheric conditions were ripe for super refraction, a bending of light that caused a false horizon, concealing the iceberg that sank the Titanic in a mirage layer, which prevented the Titanic's lookouts from seeing the iceberg in time to avoid collision. According to the new theory, Titanic was sailing from Gulf Stream waters into the frigid Labrador Current, where the air column was cooling from the bottom up. This created a thermal inversion, with layers of cold air below layers of warmer air, creating a superior mirage. The theory also explains why the freighter Californian was unable to identify the Titanic on the moonless night, because even though the Titanic sailed into the Californian's view, it appeared too small to be the great ocean liner. The abnormally stratified air may also have disrupted signals sent by the Titanic by Morse Lamp to the Californian to no avail. This is not the first time atmospheric conditions have been postulated as a factor in the disaster that took 1,517 lives. An investigation in 1992 by the British government's Marine Accident Investigation Branch also suggested that super refraction may have played a role in the disaster (PDF, see page 13), but that possibility went unexplored until Maltin mined weather records, survivors' testimony and long-forgotten ships' logs."

Hugh Pickens writes "Wheels are the archetype of a primitive, caveman-level technology, and we tend to think that inventing the wheel was the number one item on man's to-do list after learning to walk upright. But LiveScience reports that it took until the bronze age (3500 BC), when humans were already casting metal alloys and constructing canals and sailboats, for someone to invent the wheel-and-axle, a task so challenging archaeologists say it probably happened only once, in one place. The tricky thing about the wheel isn't a cylinder rolling on its edge, but figuring out how to connect a stable, stationary platform to that cylinder. 'The stroke of brilliance was the wheel-and-axle concept,' says David Anthony, author of The Horse, the Wheel, and Language. To make a fixed axle with revolving wheels, the ends of the axle have to be nearly perfectly smooth and round, as did the holes in the center of the wheels. The axles have to fit snugly inside the wheels' holes, but not too snug, or there will be too much friction for the wheels to turn. But the real reason it took so long is that whoever invented the wheel would have needed metal tools to chisel fine-fitted holes and axles. 'It was the carpentry that probably delayed the invention until 3500 BC or so, because it was only after about 4000 BC that cast copper chisels and gouges became common in the Near East.'"

DARPA is working on a project that will convert energy from the human body to power a variety of military gadgets. From the article: "Obviously, our bodies generate heat — thermal energy. They also produce vibrations when we move — kinetic energy. Both forms of energy can be converted into electricity. Anantha Chandrakasan, an MIT electrical engineering professor, who is working on the problem with a former student named Yogesh Ramadass, says the challenge is to harvest adequate amounts of power from the body and then efficiently direct it to the device that needs it." If I remember the movie correctly, this didn't turn out so well for the humans.

Smithsonian.com covers research that began with the study of birdsong and ended by overturning the common belief that adult animals can't produce new brain cells. "Deconstructing birdsong may seem an unlikely way to shake up biology. But [Fernando] Nottebohm's research has shattered the belief that a brain gets its quota of nerve cells shortly after birth and stands by helplessly as one by one they die — a 'fact' drummed into every schoolkid's skull. [Nottebohm] demonstrated two decades ago that the brain of a male songbird grows fresh nerve cells in the fall to replace those that die off in summer. The findings were shocking, and scientists voiced skepticism that the adult human brain had the same knack for regeneration. ... Yet, inspired by Nottebohm's work, researchers went on to find that other adult animals — including human beings — are indeed capable of producing new brain cells. And in February, scientists reported for the first time that brand-new nerves in adult mouse brains appeared to conduct impulses — a finding that addressed lingering concerns that newly formed adult neurons might not function."

cheezitmike writes "Researchers at Oregon State University are testing a new type of wave-energy converter to generate electricity from ocean waves: 'Even when the ocean seems calm, swells are moving water up and down sufficiently to generate electricity. ... For decades the challenge has been to build a device that can withstand monster waves and gale-force winds, not to mention corrosive saltwater, seaweed, floating debris and curious marine mammals. ... In the most recent prototypes, a thick coil of copper wire is inside the first component, which is anchored to the seafloor. The second component is a magnet attached to a float that moves up and down freely with the waves. As the magnet is heaved by the waves, its magnetic field moves along the stationary coil of copper wire. This motion induces a current in the wire — electricity.'" Meanwhile, researchers at Stanford are working to design "turbine kites" that operate at 30,000 feet, where air currents flow much faster than they do close to the ground. Ken Caldeira, a Stanford associate professor, said, "If you tapped into 1% of the power in high-altitude winds, that would be enough to continuously power all civilization."

Ralph Spoilsport writes "In Southeast Turkey, the archaeologist Klaus Schmidt has discovered an 11,000-year-old temple. Established civilization theory suggests that agriculture created cities, and cities created monuments. This discovery suggests just the opposite — people got together to build a huge monument to their religion, and in order to sustain it, communities were formed and agriculture (already in development) quickly followed on to sustain the population. Truly a startling find with significant implications."