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Research Shows How Emotional Similarity Reduces Stress

Two Stressed People Equals Less Stress, New Marshall Research
Does giving a speech in public stress you out? Or writing a big presentation for your boss? What about skydiving?
One way to cope, according to a new study from Sarah Townsend, assistant professor of management and organization at the USC Marshall School of Business, is to share your feelings with someone who is having a similar emotional reaction to the same scenario.
Townsend said that one of her study’s main discoveries is the benefit gained by spending time and conversing with someone whose emotional response is in line with yours. Such an alignment may be helpful in the workplace.
“For instance, when you’re putting together an important presentation or working on a high-stakes project, these are situations that can be threatening and you may experience heightened stress,” said Townsend. “But talking with a colleague who shares your emotional state can help decrease this stress.”
For “Are You Feeling What I’m Feeling? Emotional Similarity Buffers Stress,” in Social Psychological and Personality Science, Townsend and co-authors Heejung S. Kim of UC Santa Barbara and Batja Mesquita of University of Leuven, Belgium, had 52 female undergraduate students participate in a study on public speaking.
Participants were paired up and asked to give a speech while being video-recorded. However, prior to this, the pairs of participants were encouraged to discuss with each other how they were feeling about making their speeches. Each participant’s levels of the stress-related hormone cortisol were measured before, during and after their speeches.
The results “show that sharing a threatening situation with a person who is in a similar emotional state, in terms of her overall emotional profile, buffers individuals from experiencing the heightened levels of stress that typically accompany threat,” according to the study. In other words, when you’re facing a threatening situation, interacting with someone who is feeling similarly to you decreases the stress you feel, said Townsend.
“Imagine you are one of two people working on an important project: if you have a lot riding on this project, it is a potentially stressful situation,” Townsend said. “But having a coworker with a similar emotional profile can help reduce your experience of stress.”
Townsend, who recently launched the Culture, Diversity, and Psychophysiology Lab at Marshall, noted that motivating her research is the importance of cross-cultural understandings in the global marketplace. She hopes to continue her work by examining how developing emotional similarity can benefit people from different cultural backgrounds who must learn to function together in the workplace or the university classroom.
Ambitious professionals take note: According to Townsend, “We’ve found that emotional similarity is important. So now the question is: How do we get people to be more similar? What can you do to generate this emotional similarity with a coworker? Or, as a manager, how can you encourage emotional similarity among your team?”
So the next time you go skydiving, remember to buddy up with someone who feels the same way about it that you do.

Ig Nobel winner writes “best abstract ever”

The Shortest Science Paper Ever Published Had No Words, and Was Utterly Brilliant

Scientists are widely known for their inclination to drone on about esoteric topics in a language of jargon. But every so often, they can surprise us with conciseness. Take these three pithy offerings published in reputable scientific journals, for example:
Shortest Editorial:
In his contribution to the November/December 2013 issue of Evolutionary Anthropology, esteemed biological anthropologist Ian Tattersall, curator emeritus at the American Museum of Natural History, did not mince words. In fact, he only wrote two of them: "Enough already."
The statement concluded a year of back and forths between Tattersall and one of his colleagues, Boston University anthropologist Matt Cartmill. The tiff began with Cartmill's paper "Primate origins, human origins, and the end of higher taxa," continued with Tattersall's "Higher taxa: An alternate perspective," continued again with Cartmill's "The end of higher taxa: a reply to Tattersall," before Tattersall finally declared "Enough already."
Cartmill and Tattersall's recent exchange was the latest in a series of erudite bickering that's been ongoing since the 1980s. Though good friends, the two share manifold disagreements on Systematics -- the study of the diversification of living forms -- and how it should be used. By examining the relationships between species, we can track how life gradually transformed over billions of years from single-celled organisms to become whales, spiders, and even humans. In essence, Cartmill questions why often tiny differences separate certain animals into different species and families while others do not. Tattersall views this stance as an attack on Systematics itself, avowing that it's vital to document every tiny change and classify species accordingly.
Shortest Abstract:
In 2011, particle physicists were flabbergasted when they discovered that neutrinos could apparently travel faster than light, breaking the universal speed limit proposed by Einstein. Their result was later proven to be in error.
But before the mistake was revealed, physicists scrambled to account for the mind-boggling result. A group from the H.W. Wills Physics Laboratory in Bristol and the Indian Institute of Technology wondered, ""Can apparent superluminal neutrino speeds be explained as a quantum weak measurement?" Their abstract succinctly and bluntly answered that question: "Probably not."
Shortest Paper:
In 1974, clinical psychologist Dennis Upper found himself stricken with writer's block. Though pen was to paper, no words would flow. He decided to solve his problem with a scientific experiment. Yet, as is frequently the case in science, his experiment didn't work as intended, and that's putting it euphemistically. Despite the failure, his work, "The unsuccessful self-treatment of a case of “writer's block,” was published in the prestigious Journal of Applied Behavioral Analysis. It is reproduced in its entirety below:
Nasty case of writer's block creates the most brilliant scientific paper ever
Despite the paper's glaring brevity, Upper's reviewer hailed its brilliance:
"I have studied this manuscript very carefully with lemon juice and X-rays and have not detected a single flaw in either design or writing style. I suggest it be published without revision. Clearly it is the most concise manuscript I have ever seen-yet it contains sufficient detail to allow other investigators to replicate Dr. Upper's failure. In comparison with the other manuscripts I get from you containing all that complicated detail, this one was a pleasure to examine. Surely we can find a place for this paper in the Journal-perhaps on the edge of a blank page."

Moving Things That Are the Fastest in the World

Moving Things That Are the Fastest in the World


Cold Air Could Help You Lose Weight

"Temperature training" may be what is missing from your weight-loss plan. New evidence suggests that regular exposure to mildly cold air may help people lose weight by increasing the amount of energy their bodies have to expend to keep their core temperature up, researchers say.
A man looks happy on a snowy day.
Spending time in low temperatures may help burn calories, researchers say.Credit: Man in snow photo via Shutterstock
In other words, warm, cozy offices and homes may not be ideal places for those who want to lose weight. In fact, being able to control the ambient temperature might be partly responsible for the rise in obesity rates in industrial societies, said researchers from the Netherlands in a study published today (Jan. 22) in the journal Trends in Endocrinology & Metabolism.
"Since most of us are exposed to indoor conditions 90 percent of the time, it is worth exploring health aspects of ambient temperatures," said study researcher Wouter van Marken Lichtenbelt of Maastricht University Medical Center. "What would it mean if we let our bodies work again to control body temperature?"

One Common Ancestor Behind Blue Eyes

People with blue eyes have a single, common ancestor, according to new research.
A team of scientists has tracked down a genetic mutation that leads to blue eyes. The mutation occurred between 6,000 and 10,000 years ago. Before then, there were no blue eyes.
"Originally, we all had brown eyes," said Hans Eiberg from the Department of Cellular and Molecular Medicine at the University of Copenhagen.


The mutation affected the so-called OCA2 gene, which is involved in the production of melanin, the pigment that gives color to our hair, eyes and skin.
"A genetic mutation affecting the OCA2 gene in our chromosomes resulted in the creation of a 'switch,' which literally 'turned off' the ability to produce brown eyes," Eiberg said.
The genetic switch is located in the gene adjacent to OCA2 and rather than completely turning off the gene, the switch limits its action, which reduces the production of melanin in the iris. In effect, the turned-down switch diluted brown eyes to blue.
If the OCA2 gene had been completely shut down, our hair, eyes and skin would be melanin-less, a condition known as albinism.
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"It's exactly what I sort of expected to see from what we know about selection around this area," said John Hawks of the University of Wisconsin-Madison, referring to the study results regarding the OCA2 gene. Hawks was not involved in the current study.
Baby blues
Eiberg and his team examined DNA from mitochondria, the cells' energy-making structures, of blue-eyed individuals in countries including Jordan, Denmark and Turkey. This genetic material comes from females, so it can trace maternal lineages.
They specifically looked at sequences of DNA on the OCA2 gene and the genetic mutation associated with turning down melanin production.
Over the course of several generations, segments of ancestral DNA get shuffled so that individuals have varying sequences. Some of these segments, however, that haven't been reshuffled are called haplotypes. If a group of individuals shares long haplotypes, that means the sequence arose relatively recently in our human ancestors. The DNA sequence didn't have enough time to get mixed up.
"What they were able to show is that the people who have blue eyes in Denmark, as far as Jordan, these people all have this same haplotype, they all have exactly the same gene changes that are all linked to this one mutation that makes eyes blue," Hawks said in a telephone interview.
Melanin switch
The mutation is what regulates the OCA2 switch for melanin production. And depending on the amount of melanin in the iris, a person can end up with eye color ranging from brown to green. Brown-eyed individuals have considerable individual variation in the area of their DNA that controls melanin production. But they found that blue-eyed individuals only have a small degree of variation in the amount of melanin in their eyes. 
"Out of 800 persons we have only found one person which didn't fit — but his eye color was blue with a single brown spot," Eiberg toldLiveScience, referring to the finding that blue-eyed individuals all had the same sequence of DNA linked with melanin production.
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"From this we can conclude that all blue-eyed individuals are linked to the same ancestor," Eiberg said. "They have all inherited the same switch at exactly the same spot in their DNA." Eiberg and his colleagues detailed their study in the Jan. 3 online edition of the journal Human Genetics
That genetic switch somehow spread throughout Europe and now other parts of the world.
"The question really is, 'Why did we go from having nobody on Earth with blue eyes 10,000 years ago to having 20 or 40 percent of Europeans having blue eyes now?" Hawks said. "This gene does something good for people. It makes them have more kids."

Journal Reference:
  1. Hans Eiberg, Jesper Troelsen, Mette Nielsen, Annemette Mikkelsen, Jonas Mengel-From, Klaus W. Kjaer, Lars Hansen. Blue eye color in humans may be caused by a perfectly associated founder mutation in a regulatory element located within the HERC2 gene inhibiting OCA2 expressionHuman Genetics, 2008; 123 (2): 177 DOI: 10.1007/s00439-007-0460-x
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Supercomputer takes 40 mins to calculate a single second of human brain activity

One of the world's largest supercomputers has accurately mapped one second's worth of activity in a human brain, in what researchers claim is the most accurate simulation to date.
Scientists in Japan simulated one per cent of the neuronal network in the brain using the K computer, the fourth most powerful supercomputer in the world.
Supercomputer takes 40 mins to calculate a single second of human brain activity
Supercomputer takes 40 mins to calculate a single second of human brain activity
With 705,024 processor cores and 1.4 million GB of RAM at its disposal, the K computer took 40 minutes to model the data in a project designed to test the ability of the supercomputer and gauge the limits of brain simulation.
The project saw teams from the Japanese research group RIKEN and the German Forschungszentrum Jülich centre collaborate to use the Neural Simulation Technology tool, replicating a network of 1.73 billion nerve cells and 10.4 trillion synapses.
"If petascale computers like the K computer are capable of representing one per cent of the network of a human brain today, then we know that simulating the whole brain at the level of the individual nerve cell and its synapses will be possible with exascale computers - hopefully available within the next decade," one of the scientists, Markus Diesmann, told the Daily Telegraph.
Exascale computing involves supercomputers that can perform a quintillion floating point operations

per second, roughly the equivalent of what a human brain is capable of.
However, experts predict that we are unlikely to see the arrival of exascale computers until at least 2020, with one supercomputing director betting $2,000 (£1,300) that the feat will not be achieved in the next six years.

MASSIVE EXOPLANETS MAY BE MORE EARTH-LIKE THAN THOUGHT “Super-Earths” likely to have both oceans and continents

Massive terrestrial planets, called “super-Earths,” are known to be common in our galaxy, the Milky Way. Now a Northwestern University astrophysicist and a University of Chicago geophysicist report the odds of these planets having an Earth-like climate are much greater than previously thought.
Nicolas B. Cowan and Dorian Abbot’s new model challenges the conventional wisdom which says super-Earths actually would be very unlike Earth -- each would be a waterworld, with its surface completely covered in water. They conclude that most tectonically active super-Earths -- regardless of mass -- store most of their water in the mantle and will have both oceans and exposed continents, enabling a stable climate such as Earth’s.
Cowan is a postdoctoral fellow at Northwestern’s Center for Interdisciplinary Exploration and Research in Astrophysics (CIERA), and Abbot is an assistant professor in geophysical sciences at UChicago.
“Are the surfaces of super-Earths totally dry or covered in water?” Cowan said. “We tackled this question by applying known geophysics to astronomy.
“Super-Earths are expected to have deep oceans that will overflow their basins and inundate the entire surface, but we show this logic to be flawed,” he said. “Terrestrial planets have significant amounts of water in their interior. Super-Earths are likely to have shallow oceans to go along with their shallow ocean basins.”
In their model, Cowan and Abbot treated the intriguing exoplanets like Earth, which has quite a bit of water in its mantle, the rocky part that makes up most of the volume and mass of the planet. The rock of the mantle contains tiny amounts of water, which quickly adds up because the mantle is so large. And a deep water cycle moves water between oceans and the mantle. (An exoplanet, or extrasolar planet, is a planet outside our solar system.)
Cowan presented the findings at a press conference, “Windows on Other Worlds,” held Jan. 7 at the 223rd meeting of the American Astronomical Society (AAS) annual meeting in Washington, D.C.
He also will discuss the research at a scientific session to be held from 2 to 3:30 p.m. EST Wednesday, Jan. 8, at the AAS meeting (Potomac Ballroom D, Gaylord National Resort and Convention Center). The study will be published Jan. 20 in The Astrophysical Journal.
Water is constantly traded back and forth between the ocean and the rocky mantle because of plate tectonics, Cowan and Abbot said. The division of water between ocean and mantle is controlled by seafloor pressure, which is proportional to gravity.  
Accounting for the effects of seafloor pressure and high gravity are two novel factors in their model. As the size of the super-Earths increase, gravity and seafloor pressure also go up.
“We can put 80 times more water on a super-Earth and still have its surface look like Earth,” Cowan said. “These massive planets have enormous seafloor pressure, and this force pushes water into the mantle.”
It doesn’t take that much water to tip a planet into being a waterworld. “If Earth was 1 percent water by mass, we’d all drown, regardless of the deep water cycle,” Cowan said. “The surface would be covered in water. Whether or not you have a deep water cycle really matters for planets that are one one-thousandth or one ten-thousandth water.”
The ability of super-Earths to maintain exposed continents is important for planetary climate. On planets with exposed continents, like Earth, the deep carbon cycle is mediated by surface temperatures, which produces a stabilizing feedback (a thermostat on geological timescales).
“Such a feedback probably can’t exist in a waterworld, which means they should have a much smaller habitable zone,” Abbot said. “By making super-Earths 80 times more likely to have exposed continents, we’ve dramatically improved their odds of having an Earth-like climate.”
Cowan and Abbot accede that there are two major uncertainties in their model: that super-Earths have plate tectonics and the amount of water Earth stores in its mantle.
“These are the two things we would like to know better to improve our model,” Cowan said. “Our model is a shot from the hip, but it’s an important step in advancing how we think about super-Earths.”
The paper is titled “Water Cycling Between Ocean and Mantle: Super-Earths Need Not Be Waterworlds.”
The Alfred P. Sloan Research Foundation supported the research. 

Source: http://www.northwestern.edu/newscenter/stories/2014/01/massive-exoplanets-may-be-more-earth-like-than-thought.html
exoplanets, exoplanet app, all about the solar system, solar systems, exoplanet, earth like planets, earth solar system,
the earth, super earth planets,  

Picosecond 'kettle' to probe chemical reactions

A way to boil water in less than a trillionth of a second has been devised by researchers from Germany. The approach, which is still theoretical, uses a concentrated pulse of terahertz radiation to raise the temperature of a small sample of water by around 600°C. This technique offers the possibility to initiate thermally-activated reactions at precise times, and so better follow and understand them.
water_terahertz
Simulations show that it might be possible to superheat water incredibly fast and use this 'kettle' to help monitor reactions © Oriol Vendrell/DESY
In their study, Oriol Vendrell and his colleagues from the DESY Center for Free-Electron Laser Science use molecular dynamics software to simulate the effects on water of a flash of terahertz radiation – a type of electromagnetic wave with frequencies between those of infrared light and microwaves. This radiation can be created by a free-electron laser, in which electrons, accelerated to near the speed of light, release photons as they wiggle through an array of magnets with alternating polarities. The team’s simulation showed how terahertz pulses generate strong electric fields that polarise the water molecules, altering the strength of their hydrogen bonds and immediately setting the individual molecules in motion. This creates what Vendrell describes as ‘a transiently hot and structureless environment’.
Vendrell’s superfast boiler would only be able to heat a nanolitre of water at a time though, and the hot cloud of molecules created would last for less than a millisecond. This, however, is still more than adequate for use in a wide variety of experiments studying thermal reactions. One promising application, for example, lies in the potential for synchronising the terahertz heating pulse with probing x-ray flashes. This would let researchers monitor the progress of an ongoing reaction after well-defined periods of time have elapsed.
‘Most chemistry of importance to nature and society occurs through thermal processes, whereas currently nearly all ultrafast initiations of chemical reactions are triggered by optical excitations,’ explains Anders Nilsson, a researcher at Stanford University, US, who was not involved in this study. ‘Here, the authors show through molecular simulations that [terahertz] excitations can induce hydrogen bond breaking in water by affecting the essential low energy vibrations that are accessible by thermal energy. With the development of new x-ray sources to probe matter on ultrafast timescales this opens up alternative avenues to stimulate chemistry.’
Having concluded their initial simulations, Vendrell and colleagues are now moving to test their method experimentally. They will be investigating both the effects of terahertz pulses on small molecules dissolved in water and the potential for using the radiation to initiate simple chemical processes, such as bond breaking.

If "Classic" cars are so desirable/good looking, why don't they make more just like them?

If "Classic" cars are so desirable/good looking, why don't they make more just like them?

For two a couple of reasons:

Styling of Cars

Because it simply isn't possible anymore, there is a lot of red tape. As well crash tests modern cars have to pass. For example in order to pass the frontal crash test of today, the front of a car must have a crumple zone - metal in the car that is designed to be crushed in a crash to absorb energy so that the force of a crash does not deform the passenger compartment and crush the occupants. This therefore limits the way cars can be styled as well as it adds a lot of weight to cars. I'll talk about weight later. As well as this, there is side crash test small overlap crash test, and crash tests for pedestrian safety. All with their own indirect sets of restrictions on styling because of the way the metal must be shaped to accommodate the shape of the crumple zones and stronger side pillars etc. You can read more about the American tests here.
There are also 1 million different little regulations different governments set on cars sold in their country. For example cars cannot car from factory as low anymore, the headlight must be a minimum height for road safety. As well as the rear hazard lights must be able to still flash if the trunk/hatch/boot of the car is open. This is so that if the car is stopped on the side of the road and the trunk is open to access a spare tire or something, drivers can still see the lights flashing.
There are many different laws in many different countries covering different subject like this one, each imposing little restrictions on styling that add up.

Sports Cars

With regards of older sports car, other than the aforementioned styling, the reason why they are so much more sought after is because they have certain qualities that modern cars lack because of changes in technology and what the modern car buyer wants.
The modern car buyer want comfort, technology, safety, ease of use, and the government wants higher emission & safety standards in every car. While sports cars of old have little to none of those qualities. Weight is a big factor here. Sport cars (generally) used to be a lot lighter because of the lack of these features. No comfort features, at the maximum you'd get air con, and a radio. Or safety, lack of airbags and crumple zones etc. That's it. Everything thing else adds weight. As well as the lack of computers, and electronic systems. Lower weight means the car handles better (can get around a corner quicker), can accelerate faster, and brake faster as well with the same power and the same brakes, because there less weight to move or slowdown.
Lower weight also helps with another factor: fun Cars that weight less feel much more fun than heavy cars because of certain handling characteristics, they turn in fast, and feel more responsive to your inputs, a lighter objects changes direction easier, people who drive "enthusiastically", notice these characteristics. A car that's fun to drive feels like it's immediately responding to you and is communicating to you though the steering and pedals which is explained bellow.
Another benefit of the lack of technology in older cars is the way the steering feels. Not all cars have this, especially brand new cars, but most cars older than 3-4 have something referred to in the auto industry called steering feel. When you turn the wheel of your car, you can feel little vibrations coming through the wheel and can tell what the front wheels are doing, and you can feel the road beneath you when driving "enthusiastically" or turning normally depending on the car. If you've driven a car with it you know what I mean, most people know what I'm talking about.
Feeling these sensations as well as the feeling of the car going over the road in a sports car with a harder ride, makes the driver feel as if s/he is connected with the car and not just there driving it from point A to B it can be quite a lot of fun.
Steering feel usually increases with speed, so the faster you go the more you feel, but with a car with good steering feel you feel more sensations at slower speeds. Older sports cars especially, this was a key focus, back in the day, to have a lot of steering feel. There was no traction & stability control, the feel of the steering wheel would tell you what the front wheels were doing as the feeling of the entire car in general would tell you the limits of the car (what's the fastest speed I can go around this corner without spinning out?)
Modern cars lack this almost totally. Modern steering systems (electric power steering) kill feel totally almost across the board, older cars have either hydraulic power steering (some cars have hydraulic power steering but with little feel), or no power steering at all which would make steering very heavy, but make the sensations coming through the wheel fantastic. It's difficult to describe, but the difference is massive, the steering feels crisp and clear you can feel the road though the wheel. (Toyota has used electric power steering in there cars exclusively for a while now, all there cars had power steering in the 90's which is why a lot of there cars are seen as very boring in the enthusiasts eyes.)
Modern cars lack most sensations because they're not necessary anymore, with stability control and traction control, unless you have no idea what you're doing you won't crash, and its almost impossible to spin out unless you're driving on ice. While you can drive fast, however it doesn't as feel fun because the feeling is too refined, it feels like you're just sitting here telling the car what to do. To get more feeling from a modern sports car, one must drive faster. Which is illegal and dangerous in different ways compared to a old car with no traction/stability control.
In fact these systems are better for an asshat who has no idea what they're doing because its much harder for them to crash, but in the process of this, it kills fun for the person who has the common sense to learn the limits of there car while driving fast.

The everyday car/driver

However for the average modern car buyer, like the one mom or dad drives to soccer practice and takes to work, modern cars are infinetly better, there much safer, and are much less harmful to the environment and people around us. They are loaded with tech and comfort features But for the enthusiastic driver, there's nothing like an older car. Think about this for a second, all points that make classic sports cars so desirable, decrease comfort, or safety, or they aren't necessary anymore because of computer systems. There aren't as many people who want to buy sports cars like that anymore, so the people who do, buy old ones.

Other reasons for desirability

  • Older cars are simpler to work on
  • Older cars are generally cool
  • Lots of old cars have something in explainable, something that cannot be proven on paper, the have character, they have a soul
TL,DR: "Classic" cars are much more fun to drive because they weigh much less due to safety, it isn't possible to style modern cars like classic ones due to safety.

Using Angular Momentum, Swiss Engineering School makes a cube that balances itself in any situation

Cubli, a project out of the Dynamic Systems and Control lab at the Swiss engineering school ETH Zurich, is a 6 inch by 6 inch metal block that employs three spinning wheels to perform a variety of tricks. Its creators humbly tout its ability to “walk,” using angular momentum to flip itself from face to face. This feat was kinda cute when MIT’s diminutive M-Blocks were doing it. Here it’s a little more unsettling.


Cubli
Even more unsettling, though (and more impressive), are Cubli’s preternatural powers of balance. “Once the Cubli has almost reached the corner stand up position, controlled motor torques are applied to make it balance on its corner,” we’re told. You can change the angle of the surface it’s on, give the balancing wonder a gentle push to the side, or send it spinning like a top, and still, the devil cube retains its balletic poise.
The stabilization comes courtesy of the precise choreography of the internal spinning wheels–a system the researchers point out is similar to the one that keeps satellites oriented in space. Now, the team says they’re developing algorithms that allow Cubli to “automatically learn” and respond dynamically to changes in inertia, weight, or its surface. Presumably after that comes the algorithm that lets it tumble out of its lab in Zurich and lurch into your bedroom at night.

More Than 300 Sharks In Australia Are Now On Twitter

Sharks in Western Australia are now tweeting out where they are — in a way.

A shark warning is displayed near Gracetown, Western Australia, in November. An Australian man was killed by a shark near the area that month, sparking a catch-and-kill order.
A shark warning is displayed near Gracetown, Western Australia, in November. An Australian man was killed by a shark near the area that month, sparking a catch-and-kill order.

Government researchers have tagged 338 sharks with acoustic transmitters that monitor where the animals are. When a tagged shark is about half a mile away from a beach, it triggers a computer alert, which tweets out a message on the Surf Life Saving Western Australia Twitter feed. The tweet notes the shark's size, breed and approximate location.

Since 2011, Australia has had more fatal shark attacks than any other country; there have been six over the past two years — the most recent in November.

The tagging system alerts beachgoers far quicker than traditional warnings, says Chris Peck, operations manager of Surf Life Saving Western Australia. "Now it's instant information," he tells Sky News, "and really people don't have an excuse to say we're not getting the information. It's about whether you are searching for it and finding it."

The tags will also be monitored by scientists studying the sharks. Researchers have tagged great whites, whaler sharks and tiger sharks.

"This kind of innovative thinking is exactly what we need more of when it comes to finding solutions to human-wildlife conflict," says Alison Kock, research manager of the Shark Spotters program in South Africa. Kock tells NPR that the project is a good idea — but that people should know that not all sharks are tagged.

Her program does the same work, but humans do the spotting and tweeting.

Kock and Kim Holland, a marine biologist who leads shark research at the University of Hawaii, agree that the tweets won't be enough to protect swimmers.

"It can, in fact, provide a false sense of security — that is, if there is no tweet, then there is no danger — and that simply is not a reasonable interpretation," Holland says, pointing out that the reverse is also true. "Just because there's a shark nearby doesn't mean to say that there's any danger. In Hawaii, tiger sharks are all around our coastlines all the time, and yet we have very, very few attacks."

In Western Australia, the local government recently proposed a plan to bait and kill sharks that swim near beaches.

Holland says most shark biologists would agree that's not a good plan, partly because of what researchers have learned using acoustic transmitters. Scientists tracking white sharks, for example, found that the species can travel great distances, going from Western Australia to South Africa in some cases.

"Because we know that they are so mobile, we're not sure that killing any of them will have any effect on safety," Holland says, pointing out that great white sharks don't set up shop along the same coastlines for long. He says the number of these sharks is on the rise — but there aren't that many to begin with.

"The other side of the coin is that it's a horrible thing to see when people get killed, so there's often public outcry for government agencies to do something."




50 Things We Know Now (We Didn’t Know This Time Last Year)

Man, oh man, the stuff you miss during the year when you’re too busy texting, making Angry Cat photos and unsuccessfully signing up for government health plans.
Like the news story in October out of Umbria, in central Italy.
Scientists there were very excited because they had found what they believed to be the first example of fossilized ambergris.
Stay with me on this. It’s going to be worth the ride.
Ambergris is a fatty, waxy looking substance secreted inside the digestive tract of sperm whales to protect them from sharp objects they swallow, such as giant squid beaks and fish bones and teeth.
The ambergris they found is the first discovered in fossil form because it usually disappears in the ocean.
To put it more bluntly, ambergris is whale poop.
Oh, and ladies? Fresh ambergris is used to make perfume.
Geologists discovered the fossil while surveying the remains of a Pleistocene ocean in Umbria. Twenty-five mineralized lumps sticking out of 1.75-million-year-old rocks caught their attention.
It’s oddly comforting to know someone out there is getting paid to look for whale poop. It sort of says that we’ve got the big issues of the day locked down enough to go looking for Moby Dick’s caca.
But most of us probably missed that story. There’s a lot of noise in the world.
Here are 50 other stories of fresh discoveries during the past year that may have escaped your attention:
1. The morning-after pill Norlevo, an emergency contraceptive manufactured in Europe, is completely ineffective in women who weigh more than 176 pounds.
2. A new top predator dinosaur named Siats meekerorum roamed North America tens of millions of years before T. Rex. The remains of the 4-ton, 30-foot animal were discovered in Utah.
3. Being bilingual can help delay dementia by an average of 4.5 years.
4. A group of Neanderthals in northern Spain cannibalized their neighbors during winter, including one slaughtered group with three children aged from 2 to 9, three teenagers and six adults.
5. The coldest place on our planet is located on a ridge along the East Antarctic Plateau. On a clear winter night, temperatures can dip below minus 133.6 degrees Fahrenheit (minus 92 degrees Celsius).
6. Chimpanzees use long-term memory to remember the size and location of fruit trees and feeding experiences from as far back as three years prior.
7. Sixty percent of all lice are now “super lice,” meaning they are resistant to the chemicals that are traditionally used to treat them. That percentage is rapidly growing.
8. Astronomers discovered the most distant galaxy ever. Its light took more than 13 billion years to reach Earth. The system, which can be found in the night sky above the handle of the Big Dipper, creates more than 330 stars a year — 100 times faster than our Milky Way galaxy.
9. Eucalyptus trees draw up gold particles from deep in the soil through the water absorbed by their root systems. The gold, probably toxic to the plants, is deposited in leaves and bark and is shed before it accumulates.
10. A chemical found in chilies boosts levels of “brown fats” linked to preventing weight gain.
11. A new type of Botox is believed to be the deadliest substance known to man. Its DNA sequence is being withheld because an antidote is not known. Just 2 billionths of a gram of the protein, or inhaling 13 billionths of a gram, will kill an adult.
12. Ukrainian astronomers predict a 1,300-foot-wide asteroid named 2013 TV135 will hit earth on April 13, 2036. NASA experts who track space junk say odds are against a strike.
13. All mammals urinate for roughly the same amount of time, 21 seconds, regardless of their size. The mathematical model of animals is now known as “The Law of Urination.”
14. Sleeping changes the cellular structure of the brain and cleans the brain of a toxic buildup that might lead to dementia and Alzheimer’s disease.
15. Fossil evidence indicates that Neanderthals used toothpicks to alleviate gum disease and inflammation.
16. African elephants are able to understand human gestures instinctively, no matter whether they have been trained to do so. Their understanding is akin to that of human babies.
African elephants are able to understand human gestures instinctively, no matter whether they have been trained to do so.
African elephants are able to understand human gestures instinctively, no matter whether they have been trained to do so.
17. Birds locate food in the morning but don’t actually eat it until much later in the day. Feeding patterns were discovered after researchers fitted 2,000 small garden birds with radio tags that activated when they landed on feeders.
Birds locate food in the morning but don’t actually eat it until much later in the day.
Birds locate food in the morning but don’t actually eat it until much later in the day.
18. Human breasts sag faster than other parts of a woman’s body because of an independent biological clock that speeds the aging process by as much as two to three years. Healthy breast tissue that sits near a cancerous tumor is an average of 12 years older.
19. Kissing is the ultimate social taste test men and women use when looking for a relationship that lasts. More frequent kissing in a relationship was linked to the quality of a relationship but not to a greater frequency of sex.
20. Chimpanzee friendships are based on similarity of personality. The most sociable and bold individuals prefer the company of other highly sociable and bold individuals, while shy and less sociable ones spend time with other similarly aloof and shy chimps.
21. A slow caress or stroke, the touch often instinctual for mothers to give their children, may increase the brain’s ability to construct a sense of body ownership and, in turn, play a part in creating a healthy sense of self.
22. A small, black pebble filled with diamonds found in the Libyan desert is the first evidence of a comet hitting the earth. The impact took place 28 million years ago.
23. Chemical processes within Earth’s atmosphere remove trace gases and pollutants, essentially making it self-scrubbing.
24. The left and right hemispheres of Albert Einstein’s brain were unusually well connected by the corpus callosum, the nerve highway joining the two sides. This may have allowed more synapses between the hemispheres and contributed to his brilliance.
25. Commonly used words on Facebook accounts can indicate gender, age and distinct personality traits. Women are more likely to use words like “excited,” while men are more inclined to swear.
26. Propylene, a chemical essential for the creation of plastic on Earth, has been found onTitan, Saturn’s largest moon.
27. Aspirin may be ineffective in preventing recurrent heart attacks in as many as 1 in 5 people.
28. The moon is about 100 million years younger than previously thought. It is around 4.4 billion to 4.45 billion years old.
The moon is about 100 million years younger than previously thought.
The moon is about 100 million years younger than previously thought.
29. Two species of tawny brown singing mice that live deep within the mountain forests of Coast Rica and Panama sing in order to protect their turf.
30. A team of physicists experimenting with photons discovered a completely new form of matter that sticks light particles together in a solid mass, working in the same way as the light sabers used in “Star Wars.”
31. Tamarin monkeys lower their voices to keep others from hearing what they’re saying.
32. Oxygen, a key component in the formation of complex organisms, was present in the Earth’s atmosphere 700 million years before previous estimates.
33. Four new species of legless lizards were discovered near Los Angeles International Airport among oil derricks and sand dunes at the end of an airport runway.
34. For women, smelling a newborn baby feels as good as drugs to addicts or cheeseburgers to those just breaking a fast.
35. Large eddies in the southern Atlantic Ocean behave mathematically like black holes, with water paths surrounding them circulating so tightly that nothing caught up in them escapes.
36. Blood taken from a woolly mammoth trunk frozen in Siberia for 10,000 years with its red meat, skin and hair in good condition could be used to recreate the species.
37. Underwater waves 800 feet tall were found in a deep ocean trench three miles beneath the surface near Samoa in the south Pacific Ocean.
38. The Earth will continue to be habitable for another 1.75 billion to 3.25 billion years, until it travels out of the solar system’s habitable zone and too close to the sun.
39. The waxy buildup inside the ear of deceased blue whales reveals how much exposure an animal has had to chemical pollutants over the course of its lifetime.
40. West Antarctica’s massive Ross Ice Shelf ice-sheet is hiding an estuary where fresh water from rivers mixes with salt water from the ocean.
41. The world’s first known venomous crustaceans were found in deep caves off the coast of Western Australia. The small, blind, centipede-like “remipede” kills other crustaceans by liquefying them with a chemical compound and then sucking the fluid from its victim’s body.
42. Heart disease patients with a positive attitude are more likely to exercise and live longer. The most positive patients exercised more and had a 42 percent less chance of dying during the follow-up period.
43. A mutation in a gene causes some people to be more prone to a strain of the herpes virusthat causes cold sores.
44. Earthworms survive as long as three weeks during droughts by “shrink-wrapping” themselves in a self-created mucus-chamber to reduce the amount of surface area exposed to the soil.
Earthworms survive as long as three weeks during droughts by “shrink-wrapping” themselves in a self-created mucus-chamber
Earthworms survive as long as three weeks during droughts by “shrink-wrapping” themselves in a self-created mucus-chamber
45. As little as one glass of wine is enough to interrupt communication between the amygdala and prefrontal cortex, the two parts of the brain that control behavior. The breakdown could explain the disinhibition, aggression and social withdrawal symptoms associated with being intoxicated.
As little as one glass of wine is enough to interrupt communication between the amygdala and prefrontal cortex, the two parts of the brain that control behavior.
As little as one glass of wine is enough to interrupt communication between the amygdala and prefrontal cortex, the two parts of the brain that control behavior.
46. Neurons in the brains of mice can be switched off to make them more resilient to bullying by other mice.
47. The world’s oldest globe of the New World, dating back to the early 1500s, was found. The previously unknown artifact was carved onto two grapefruit-size hemispheres of ostrich eggs, possibly by a worker influenced in Florence by Leonardo Da Vinci.
48. Wolves howl to express the quality of their relationships and to provide a sound-based beacon to help a wandering wolf find its way back to the safety of the pack.
49. Oceanographers discovered Tamu Massif, the world’s largest volcano, beneath the Pacific Ocean about 1,000 miles east of Japan. The volcano, which is 145 million years old and the size of New Mexico, went dormant a few million years after it formed.
50. Dolphins have a signature whistle they use to identify each another that effectively functions as name. No two whistles are alike. It is not yet known how the dolphins get their names.
Dolphins have a signature whistle they use to identify each another that effectively functions as name. No two whistles are alike.
Dolphins have a signature whistle they use to identify each another that effectively functions as name. No two whistles are alike.


Source : http://tbo.com/ap/technology/50-things-we-know-now-we-didnt-know-this-time-last-year-20131229/

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