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The U.S. Navy Wants Nonlethal Weapons

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Diagram Of A Space To Clear
The Office of Naval Research wants to give troops a tool to make people leave a room like this, but one that does so without killing the occupants.
Office of Naval Research illustration

The Office of Naval Research works to make sure sailors, admirals, and Marine commandants of the future have as many tools available for winning the wars of the future. At times, this translates into more accurate or more powerful killing tools. A recent contract solicitation reveals that ONR is also looking in the other direction: they want weapons that don't kill, and they want a variety of them. If developed, together these technologies would constitute a range of weapons that could make the next war of counter insurgency a somewhat less bloody affair.

Here are the fourteen kinds of non-lethal weapons research ONR wants:

  1. non-lethal advanced materials and non-lethal payloads to hail or warn, move, deny area, suppress, and temporarily disable individuals at ranges greater than 100 meters;
  2. high-power microwave technologies for counter-material missions
  3. compact active-denial technologies;
  4. clear-a-space technologies;
  5. human electro-muscular incapacitation technologies;
  6. non-lethal directed-energy and non-directed energy-based technologies for vehicle or vessel stopping and other counter-material targets;
  7. non-lethal laser-induced plasma effects at ranges farther than 100 meters for counter-personnel and counter-material missions;
  8. compact non-lethal non-pyrotechnic flash-bang technologies;
  9. compact advanced multi-bang flash-bang technologies;
  10. advanced non-lethal technologies that move, suppress, deny, or disable through combined effects on individuals and crowds;
  11. compact hail-and-warn technologies through two-way communications that work out to ranges as far as 1,500 meters;
  12. compact, low-cost non-lethal push-back and repel technologies;
  13. human effects and non-lethal weapons weapon effectiveness studies, risk assessments, and evaluations; and
  14. other next-generation non-lethal technologies.

Translated out of Pentagonese it breaks down into a few categories: stuff that destroy weapons and equipment but not human flesh, stuff that stuns or disables humans but doesn't kill them, and stuff that moves humans out of the way without killing them. None of these techniques sound particularly pleasant. Previously, the Pentagon tested a pain ray, and a willing journalist volunteered to feel its effects:

When the signal goes out over radio to shoot me, there’s no warning — no flash, no smell, no sound, no round. Suddenly my chest and neck feel like they’ve been exposed to a blast furnace, with a sting thrown in for good measure. I’m getting blasted with 12 joules of energy per square centimeter, in a fairly concentrated blast diameter. I last maybe two seconds of curiosity before my body takes the controls and yanks me out of the way of the beam.

It's painful and violent, so it's not an ideal response to a peaceful protest. But that's not always the right point of comparison. For marines facing a riot, or a medical evacuation team trying to get through a crowd to injured troops, nonlethal weapons that can clear a crowd are a far, far better option than bullets or explosives.

ONR is also looking for nonlethal weapons that focus on breaking stuff, not bodies. Item two, for example, wants to fry electronics with microwaves, leaving them useless on the battlefield and in need of repair. Directed in war, this could mean shutting down an enemy's cell phone, wrecking the cameras on a surveillance drone, or stopping a vehicle in its tracks. 

Part of the logic driving the development of nonlethal weapons comes from the counterinsurgency experience in Iraq and Afghanistan. The "clear a space" technology listed as item four above is about emptying a room, forcefully, but in a way that doesn't end with dead bodies. The full solicitation announcement specifically cites the 2004 Battle of Fallujah in Iraq, where American troops went house to house, trying to drive out the armed insurgents who earlier killed American security contractors in the city. It was a bloody battle, and took place in a city where hundreds of thousands of civilians lived. ONR wants to give future troops a tool that can make people leave a house within five minutes, and one that minimizes civilian deaths, if possible.

Nonlethal weapons exist in a weird place. There are all clearly, undeniably weapons, tools used to force people into acting more in a way the military wants. When used by police officers domestically in the United States, these weapons fall under a "use of force continuum," which tries to limit injury by making sure the least-harmful technique is used for the specific situation. It doesn't always work out that way, and nonlethal weapons originally developed for the military are sometimes misused horribly in police hands.









Microscopically Structuring Steel Like Bamboo Makes It Stronger Yet More Flexible

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Illustration showing a gradient microstructure
The experimental steel is made of grains that go from small to large
Yuntian Zhu

People's teeth and bamboo stalks may not seem very durable compared to bars of steel. But, a new series of experiments finds, making metals mimic those materials could improve metals' endurance and strength.

A team of chemists from China and the U.S. manufactured steel with a particular microstructure, inspired by teeth and bamboo. The resulting material was both more flexible and able to handle higher amounts of stress than conventionally made steel. In factories, you want both qualities. Structural steel should be able to handle a lot of stress, but it should also bend a little when it comes near its stress limit. That way, it will give engineers more time to fix it before it fails, instead of shattering suddenly.

At the surface, the newly developed steel is composed of grains that are 96 nanometers wide, or about 1,000 times thinner than a sheet of paper. Deeper down into the metal, however, the grains become gradually larger. At its core, the steel has grains about 35 micrometers in size, or more than 300 times wider than the grains at the surface. Of course, all this change in grain size happens over a very short distance. The entire sheet of steel is only one millimeter thick. And remember, the small-to-big transition has to happen at both the top and bottom surfaces of the steel sheet.

Deeper down in the metal, the grains become gradually larger.

The small grains on the surface of the steel help make the metal harder. Meanwhile, the larger grains deeper inside allow the steel to bend. Many things in the natural world also have microstructures that have a gradient of grain sizes from surface to center. The gradient helps them deal with stresses such as weather and wearing.

The China-U.S. team published their steel gradient findings in two papers in the journals Materials Research Letters and the Proceedings of the National Academy of Sciences. The team isn't the only one to have tried creating metals with gradients. In the past few years, other chemists and materials scientists have made copper and stainless steel like this. (The latest gradient-grained steel is not stainless steel. Instead, it's of a type of steel called interstitial-free.) Those groups, too, found improved flexibility with strength in their metals.

[North Carolina State University]








Ask Anything: How Long Can A Flower Live Once It's Picked?

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Illustrations by Jason Schneider

Most cut flowers will last a week or two under normal conditions, but “vase life” varies widely. Genetics play a major role, of course, but so does how the plant was grown and harvested.

The best you can do to make a flower last for a really long time is to put it at a temperature that’s very close to freezing.

At the moment of cutting, the stem will have a supply of starches and sugars inside—more if the plant was grown in lots of light and harvested in the late afternoon. This supply is fuel, and once it has been depleted, the flower can take up nutrients from the water in a vase. That’s why people often dose their bouquets with “flower food.”

But the ability of cut flowers to take up water and nutrients deteriorates over time. These processes are limited by obstructions in the stem, often caused by air bubbles or bacterial growth. Adding a bit of bleach to the water may prolong a flower’s life by staving off microorganisms, and mild acid tends to ease circulation. Temperature also makes a big difference: “The best you can do to make a flower last for a really long time is to put it at a temperature that’s very close to freezing,” says John Dole, a professor of floraculture at North Carolina State University. So long as you haven’t frozen up the flower’s sap—a fatal mistake, to be sure—cold will slow senescence.

Even under ideal conditions, a plant’s genetics play a significant role in its flowers’ longevity. Daylilies, for example, last at most a day. Other species have surprising tenacity. “We work with a flower here called a pineapple lily, and in one of the treatments, it’s lasting seven weeks,” says Dole. “When they’re going this long, it falls into the category of ‘please die now . . . I want to get this experiment done!”

This article originally appeared in the July 2014 issue of Popular Science.








How Fireworks Inscribe The Sky

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Our space monkey mascot in fireworks
Courtesy Finale Fireworks

Then

Pyrotechnics that produce shapes, be they faces or hearts, come from a single shell that contains multiple flares. But because there’s no telling which way a shell might face when it explodes, designs can wind up backward or sideways. Not the best plan for words or details.

In Development

Simulation software, such as Finale Fireworks, allows designers to draw almost anything on the sky by coordinating the flight of dozens of lights at once. The programs control each mortar’s angle and target altitude, and signal the launch of complex designs.

This article originally appeared in the July 2014 issue of Popular Science.








Magic Mushrooms Expand Your Mind And Amplify Your Brain’s Dreaming Areas. Here’s How

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Big ideas in little places
Robin Carhart-Harris

Psychedelic drugs alter consciousness in a profound and novel way that increases the breadth and fluency of cognition. However, until recently, we were unable to offer an explanation for how the brain was altered to account for these effects.

In a new study, published in Human Brain Mapping, we scanned the brains of volunteers who had been injected with psilocybin – the chemical found in magic mushrooms which gives a psychedelic experience – and a control group who hadn’t, and discovered two key things: that psilocybin increased the amplitude (or “volume”) of activity in regions of the brain that are reliably activated during dream sleep and form part of the brain’s ancient emotion system; and that psychedelics facilitate a state of “expanded” consciousness – meaning that the breath of associations made by the brain and the ease by which they are visited is enhanced under the drugs.

Ego and emotion

This finding of a similar pattern to dream activity is intriguing. While the psychedelic state has been previously compared with dreaming, the opposite effect has been observed in the brain network from which we get our sense of “self” (called the default-mode network or ego-system). Put simply, while activity became “louder” in the emotion system, it became more disjointed and so “quieter” in the ego system.

Evidence from this study, and also preliminary data from an ongoing brain imaging study with LSD, appear to support the principle that the psychedelic state rests on disorganised activity in the ego system permitting disinhibited activity in the emotion system. And such an effect may explain why psychedelics have been considered useful facilitators of certain forms of psychotherapy.

We also looked at the range of connectivity configurations – or “motifs” – in the emotion system and found that a broader range of motifs emerged under psilocybin, and this effect began with the onset of the drug’s psychological effects.

This is an entirely novel analysis and its validity needs to be further tested – but it may offer an initial insight into the biological basis of the often described consciousness-expansion that is one of the hallmarks of a psychedelic experience.

Building a picture

Our research into the brain effects of psychedelic drugs began at the University of Bristol in 2009 and continues today at Imperial College London and Cardiff University.

We were interested in the idea that psychedelics facilitate communication across the brain and, more specifically, how the default-mode network in the brain, arguably science’s best biological correlate of the self, normally works to constrain this.

Our first study, published in Proceedings of the National Academy of Sciences in 2012, revealed decreases in brain activity after injection of psilocybin that were localised to the default-mode network.

This finding was exciting because it synched with the idea that psychedelics cause temporary “ego dissolution”, in other words – diminishing one’s sense of having a firm and enduring personality. Our new research adds to our understanding about how this happens.

Understanding the brain mechanisms that underlie enhanced cognitive fluency under psychedelics may offer insights into how these drugs may be psychologically useful, for example in helping patients experience an emotional release in psychotherapy, and also potentially enhancing creative thinking.

Robin Carhart-Harris's research received financial and intellectual support from the Beckley Foundation as part of a wider Beckley-Imperial psychedelic research programme

This article was originally published on The Conversation. Read the original article.








How 9/11 Made The Global Helium Shortage Worse

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Large Hadron Collider
The LHC is kept cool with 120 tons of liquid helium.
CERN
Helium has many uses besides filling children's birthday balloons--it's importantly used in MRI machines, wafer manufacturing, and welding. Helium is also used to cool the Large Hadron Collider--120 tons of liquid helium, to be exact--and other particle accelerators that teach us about how the smallest bits of matter behave. 

Helium-3, an isotope or form of helium with two protons and one neutron, is especially useful for low-temperature physicists, who use this substance to research  quantum properties, and its study has provided breakthroughs in understanding "hydrodynamics of intricately ordered systems, the microscopic theory of electrons in metals" and more. The price of this isotope remained stable for decades at a price of about $100 per liter, as reported by Nature Physics. But then something happened: 

But after 11 September 2001, in the interest of national security, the US government started using helium-3-based neutron detectors ('radiation portal monitors') to uncover any potential bomb-making components entering the country. That increased demand, coupled with a large order from the Oak Ridge National Laboratory in 2008, suddenly revealed that the US Department of Energy was allocating helium-3 faster than it could be produced. In 2008, the demand reached 80,000 litres, becoming unsustainable.

Since then, the U.S. has scaled back the use of the substance in these monitors, but there is not enough of both regular helium and helium-3 to go around. Researchers are adapting by "using cryogen-free technology that (although prone to vibration) is compatible with dilution refrigerators and superconducting magnets," Nature reported. Helium-3 derives from the decay of tritium, a radioactive isotope of hydrogen produced in the production of nuclear weapons--as nuclear weapon production has fallen, so has helium-3 abundance. It can also be found on the moon, so if we ever needed a plentiful supply of helium-3, we could get it there. But that would obviously be quite an undertaking. 

The situation is worse today (for both helium and helium-3) than it when it was declared "unsustainable" in 2008, and that price has gone up by a factor of 2.5 each year since then. And demand is increasingly outstripping supply (for example, Cornell scientist Robert Richardson said that helium balloons will one day cost $100). So, physicists will have to start using less, writes Northwestern University William Halperin writes in Nature. That means funding will have to be found for projects to use new methods for keeping stuff cool, or technology to conserve helium and prevent it from evaporating.

The situation may get much worse beginning in 2021, Halperin writes. That year, the U.S. is set to close its strategic reserve of helium, which it draws from to alleviate market pressures.

Here's an infographic showing the fluctuations in helium demand and price since 1939.








The First “Potentially Habitable” Exoplanet Was Probably Just a Sunspot

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The exoplanet formerly known as Gliese 581g.
Artist interpretation from NASA

Way back in 2010, Gliese 581g made waves as “the Goldilocks planet”. It was the first planet scientists found within the habitable zone—the region around a star where it’s not too hot and not too cold for liquid water to endure on a planet’s surface. But after the initial excitement about finding a planet that could potentially support life, some scientists started to seriously doubt whether Gliese 581g was really there, because the signal was weak. Despite all the debate, lots of astronomers listed Gliese 581g as the top spot to look for alien life

Now, new research says that Gliese 581g doesn’t actually exist.

Astronomers can't actually see the planets in the Gliese 581 star system. Instead, they detected the planetary candidates by monitoring the star's light. As a planet orbits, its gravity tugs on the star and distorts the light coming off it, changing the wavelengths and thus the color of light that reaches telescopes here on Earth. (Here’s a longer explanation of the radial velocity technique, if you’re interested.) The problem is that the star also moves, and as it rotates its sunspots and other solar activity also distort the light coming off of it.

Until now, scientists didn’t know how fast the Gliese 581 star spins around. Now they know it makes a complete rotation approximately every 130 days. With that new information, they were able to go back into the data and take out the signals coming from the star’s movements. And when they did that, the signals for Gliese 581g disappeared. Same goes for Gliese 581d, which had also been an exciting and potentially habitable planet. But the technique did confirm that three other planets within the Gliese 581 star system are indeed really there.

Luckily, the 977 exoplanets discovered by the Kepler Space Telescope are probably not in jeopardy. Rather than measuring light wavelengths, Kepler finds exoplanets by looking for the shadows create as they pass in front of stars, so it’s not as susceptible to stellar rotation noise.   

The other good news is that the new technique is handy for confirming exoplanets’ existence (not just ruling them out), and will hopefully make it easier to spot more Earth-sized planets. “For very low-mass planets like Earth, their Doppler signals will be smaller than those created by stellar activity for nearly all stars,” says astronomer Paul Robertson from Penn State University, the lead author on the new study. “It is necessary to remove the stellar activity signals in order to find these very exciting planets.”

The new paper appears today in Science








Wearable Tech Gets A Makeover

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GPS in a jacket
Photograph by Jonathon Kambouris

The market for wearable gadgets will reach about $1.8 billion within the next four years, according to Juniper Research, a firm that specializes in mobile telecommunications. Trouble is, it’s hard to wear a gadget without looking like you’re wearing a gadget. Plastic or silicone fitness monitors, such as the Fitbit and Nike Fuelband, practically scream “activity tracker!” And smart watches are large, heavy, and obvious—the calculator watches of the 21st century.

But that awkward stage may be drawing to a close. As sensors become smaller and cheaper, and low-energy Bluetooth data sharing mitigates the need for bulky batteries, designers can integrate smart components in unobtrusive ways. The Misfit Shine activity tracker, for instance, looks like a piece of jewelry (and can last four months on one watch battery). Start-up Cuff will embed location sensors into a line of bracelets and necklaces. Fitbit has even signed a deal with designer Tory Burch to create accessories for its products.

Baking smart components into clothes and accessories is also getting easier to do. In March, Google unveiled the Android Wear operating system, which is optimized to deliver at-a-glance information, such as appointments and text messages, so designers won’t have to spend months developing custom code for their devices. Instead, they can just do what they’ve always done: focus on the fashion.

1 Navigate Jacket

Synced with step-by-step directions from your phone, haptic actuators in the blazer “tap” you when it’s time to turn.

Price:not set; available late 2014

2 Cuff

Wearers can move the CuffLinc Bluetooth module among various bracelets, necklaces, and keychains. Tapping the Linc checks them in at a location.

Price:from $49; available fall

3 Misfit Shine

The one-inch-wide activity tracker snaps on like a lapel pin; with optional accessories, users can convert it into a necklace or wristband.

Price:$99.99

This article originally appeared in the July 2014 issue of Popular Science.









See For Yourself How Many Animals Are Close To Extinction

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Amphibians, like this critically endangered Mississippi gopher frog, are in trouble.
USFWS
Mass extinctions have happened before in Earth's history, for example when an enormous meteorite slammed into our planet and (likely) wiped out the dinosaurs. But we are now in the midst of one caused by, you guessed it, human beings--with species going extinct between 100 to 1,000 times the natural "background" level. But these numbers are a bit hard to picture. Thankfully, the online journalism outfit ProPublica has created an amazing visualization called "A Disappearing Planet" that tells the story very well through data. 

The visualization shows how many mammals, reptiles, amphibians and birds are endangered, and it breaks it down into families, genera and species. Just clicking at random to find a critically endangered species, I came across the Yanbaru whiskered bat, which was only discovered in Okinawa in 1996 isn't in very good shape. I also learned that 63 percent of primates, 69 percent of big cats, and 100 percent of rhinoceroses are at risk for extinction.

Go ahead and check it out for yourself.

ProPublica







Meet The Scientist Who Might End The Climate Culture Wars

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Texas Tech professor Katharine Hayhoe is among the American Geophysical Union's 2014 award-winners for science communication, announced on July 3.

"She's someone who has been tireless in having the public understand climate change and climate change science. She excels at connecting with people in ways they can understand about why climate change science is important to them and their everyday lives," says AGU executive director Christine McEntee. "She's great at creating a two-way dialogue."

This is only the third time AGU has given an award for climate communication. Past winners include Kevin Trenberth, a senior scientist at the National Center for Atmospheric Research; and Gavin Schmidt, co-founder of RealClimate (long the go-to blog for climate science) and very lately director of the NASA Goddard Institute for Space Studies.

Hayhoe's professional credentials are equally fierce. She is the director of the South Central Climate Science Center, a regional research hub supported by the federal government. She has worked on assessment reports with the Intergovernmental Panel on Climate Change. Hayhoe speaks with resource professionals, such as water managers, on preparing city and regional infrastructure to increased heat or drought, and other impacts of the destabilized climate. Hayhoe's name appears on a healthy number of scientific publications, which have been cited by other researchers over 5,700 times. (She also chats it up with journalists; I first met her at the Society of Environmental Journalism's 2012 conference in Lubbock, Texas.)

But Hayhoe may be best-known to the general public because of how she's bridging the broad, deep, here-be-dragons gap between scientists and conservative Christians - work she does in part because she's a conservative Christian herself.

Whenever it was that climate change denial first joined hands with evangelical Christianity, their union became mainstream national news in 2007. That was the year over two dozen evangelical leaders tried to oust Rev. Richard Cizik from his role as chief lobbyist for the powerful National Association of Evangelicals, over his “relentless” efforts to get evangelicals to act to stop global warming. (That was the same year that Rev. Jerry Falwell termed global warming “Satan's attempt to redirect the church's primary focus” away from evangelism and towards environmentalism, a movement peopled by “first-class nuts.”) Cizik wasn't officially ousted from the NAE until 2008 when he also began speaking out in support of same-sex civil unions. 

Now, six years later, the NAE's website features an excerpt from Genesis 2:15 about God's creation -- "watch over and care for it" -- as support for “the principle of sustainability: our uses of the Earth must be designed to conserve and renew the Earth rather than to deplete or destroy it.” There are links out to information on retrofitting your church for energy conservation; poverty and climate change; resources for starting a “creation care Bible study or action group”; and more. Nothing explicit about science, but it seems like something has shifted.

Hayhoe's work may be among the reasons why. In 2009, less than a year after Cizik was ousted from NAE, Hayhoe and husband Andrew Farley (a religious scholar and evangelical minister) co-authored  A Climate for Change. The book explains climate science in ways that reflect conservative Christian beliefs rather than antagonizing them.

In an interview earlier this year, Hayhoe told me how the book led to word-of-mouth referrals from co-religionists, resulting in more invitations to speak at churches, Christian colleges, and other conservative groups that, she thought, would not typically invite a scientist from a public university to come talk about global warming.  It's work she continues to do, as evidenced in her recent appearance in the climate change documentary, "Years of Living Dangerously."

Hayhoe says there are sometimes hardcore deniers in these audiences, not there to listen but to argue. “It would take an act of God to change their minds,” she says dryly. But Hayhoe finds mostly that because she can convey the scientific facts without dismissing or violating their conservative Christian values, these audiences mostly react to her presentation by asking what they can do.  And that's good news for all of us, whatever our position on faith.








The Week In Drones: Phantoms, Peacekeeper, Polluter Policing, And More

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Benxi heavy steel industries
Andreas, via Wikimedia Commons

Here's a roundup of the week's top drone news, designed to capture the military, commercial, non-profit, and recreational applications of unmanned aircraft.

Sensible Sense And Avoid

Key to a future of safe skies full of unmanned flying machines is a technology called "sense and avoid," where a drone can detect and steer clear of other flying objects. This technology is still very much a work in progress, but last week the Federal Aviation Administration, Department of Defense, NASA, and the Department of Homeland Security agreed on a conference to discuss and advance this technology, hoping that their shared knowledge, as well as insight from the industry, will lead to some breakthroughs.

Peacekeeping In Congo

While drones are popularly known for firing missiles, the vast majority of modern drones are surveillance vehicles, where their ability to watch an area for a long time and without a pilot in harm's way is valuable. Peacekeepers with the United Nations Mission in the Democratic Republic of Congo are flying unarmed Selex Falco ES drones to monitor rebel groups. The New York Times reports:

Here in Goma, United Nations officials say that remotely piloted aircraft can be more useful than helicopters for surveillance because drones can fly low without being easily seen or heard, and they can remain over an area gathering information for hours at a time. A helicopter crew that tried to do the same would risk being shot down.

With unarmed, unmanned aerial vehicles, "you do it quietly, discreetly, you do it in the middle of the night,” said a United Nations military officer who is part of the drones team.

Selex Falco Drones at 2011 Turkmenistan Independence Day Parade
Kerri-Jo Stewart, via Wikimedia Commons

Busting Polluters

Chinese authorities are turning to drones to catch industrial polluters in the act. Equipped with thermal imaging cameras, the drones flew over part of Hebei province and surveyed an area of about 386 square miles, or about the size of Dallas, Texas. The night flights with thermal imaging cameras let police find "night polluters" -- factories that release their carbon waste after dark. This was part of an aggressive anti-pollution campaign ordered by Chinese premier Li Keqiang.

Phantom Swift

The Defense Advanced Research Projects Agency wants a future aircraft that can take off and land vertically, but fly like a plane in the air. DARPA announced the project in 2013, and Boeing disclosed their assembled design last week. Dubbed the Phantom Swift, the scale model mock-up looks like a cross between a shoe sole insert and a very, very flat shark.

Watch a video about it below:

 

FAA Failings

The Office of the Inspector General published a report about the FAA's progress developing drone rules, and it suggests that the FAA is, by their own metrics, doing a very bad job. The most cutting finding:

Finally, FAA is not effectively managing its oversight of UAS operations. Although FAA established a UAS Integration Office, it has not clarified lines of reporting or established clear guidance for UAS regional inspectors on authorizing and overseeing UAS operations. Until FAA addresses these barriers, UAS integration will continue to move at a slow pace, and safety risks will remain. 

Did I miss any drone news? Email me at kelsey.d.atherton@gmail.com.








The Week In Numbers: Big Tails, Deep Dives, And More

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176,000: the number of business stories the AP is now able to produce in a year, using its new, no-human-needed, story-writing software.

887: combined horsepower of the 2015 Porsche 918 Spyder, a hybrid sports car.

photo of a Porsche 918 car
Porsche 918
Courtesy Porsche

17.6 teslas: the strength of a magnetic field recently trapped in a thumb-size bar of superconducting material. This is the strongest magnetic field ever trapped in a superconductor. Maglev trains, anyone?

A Puck of Superconducting Material Levitates Over a Permanent Magnet
University of Cambridge

7 times: magnitude increase in the number of wind turbines in the U.S. since 1992. Experts think a renewable-energy tax credit drove this buildup. They're now worried that if Congress does not renew the credit, progress will slow.

14: the number of types of non-lethal weapons the U.S. Office of Naval Research sought in a recent call for contracts.

130 percent: mass of a tufted ground squirrel's tail, in relation to its body. This is the greatest tail-to-body ratio for any known mammal. Local hunters report the squirrel species kills deer and disembowels them. Scientists studying the species are keeping an open mind about these claims.

photo of a tufted ground squirrel
Tufted ground squirrel
HOSCAP Borneo

1.118 miles: depth to which devil rays—normally considered an ocean-surface-dwelling fish—have been found to dive.

Creepy: appearance of a devil ray








Stunning Solar Flares And Other Amazing Images From This Week

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Better Than Fireworks
A solar flare is a burst of radiation that erupts from the sun's atmosphere across every wavelength of the spectrum. Solar flares are scary, and awesome, but rarely do they look so delicately beautiful. This is a composite image taken over the course of three days by NASA's Solar Dynamics Observatory. The red, green and blue colorization, added later, is used to designate three different wavelengths of light that act differently during a solar flare.








This Wasp Eats Spiders And Stacks Up Corpses Of Stinging Ants

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PLOS ONE

Meet the bone-house wasp. This newly-discovered Chinese wasp species is not afraid of spiders. In fact, it kills spiders with a sting and serves up the arachnids as food for the wasp's eggs.

Unlike other wasps in the family Pompilidae, which also dine on spiders, the new species also kills ants and puts them in the entrance to its larvae-filled nest. Not just any ant will do. The wasps choose "an aggressive, large-bodied, and common species in the study region that has a powerful sting," write the authors in a study about the newly described wasp in the journal PLOS ONE.

Why? Scientists think formic acid inside the ants might ward off the wasp's predators, according to Gwen Pearson at Wired. This idea certainly has precedent: Various animals use the defensive chemical in the ants to protect themselves from attack. Such "anting" behavior has mainly been observed among birds. But it's unusual to see an organism hoard ant corpses and stack them up like a warning. 

The species has been given the name Deuteragenia ossarium, the latter name which means "receptacle for the bones or ashes of the dead." Which makes bone-house wasps pretty metal, if you ask me.








Scan Artist

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Photograph by Travis Rathbone

Only Scott Toth knew exactly how this would go. He deftly hooked his tow truck to a gleaming white 2012 Chevy Cruze in a matter of seconds. A young woman in the passenger seat jumped out and screamed toward the convenience-store entrance: “Somebody get --- ! He’s inside!” Then Toth began securing straps to the wheels and hoisted the Chevy onto a hydraulic boom that resembled a giant spatula. The car’s owner emerged from the store, advancing angrily. Other drivers pulled out of adjacent spaces like cowboys abandoning their bar stools.

At 5'11" with wide shoulders and a buzz cut, Toth—a repossession agent out of Cleveland—looks a little like a drill sergeant, though he has considerably better people skills. To calm older drivers, he’ll turn the conversation to his four daughters, projecting the image of a beleaguered 34-year-old father with a house full of teens. But with the Chevy’s glaring driver—a guy of about 20 with an athletic build, camo baseball cap, and carefully considered facial scruff—this clearly wouldn’t work. Instead, Toth lit a cigarette. The driver, seeing the gesture, paused and sparked up too. For a moment, the two stood like country gentlemen enjoying the evening light. “Sounds like you haven’t made a few payments,” Toth said amiably, looking out at the horizon.

“That’s about right,” the man said.

“Can I have the keys?” Toth asked. Keys would help get the Chevy out of park and into neutral, making any getaway much smoother.

“I ain’t giving you s---,” the driver responded. His female companion stood to one side, anxiously chewing her fingernails.

With that, Toth nonchalantly climbed back into his Dodge 3500 and gunned the 6.7-liter Cummins diesel, performing what’s known in the industry as a “drag,” yanking the Chevy across the convenience-store lot, leaving parallel black scars on the pavement behind him. About 50 feet away, he pulled into an empty lot, unhooked the Chevy’s back bumper, and drove around to the front so he could tow the car freely on its rear wheels. Before setting off, he uploaded a few photos of the vehicle’s condition to the company intranet through the truck’s encrypted WiFi hotspot. Meanwhile, back at the store, the car’s owner ranted loudly to his friends, then hustled into a white pickup. Still within earshot, Toth didn’t look up. “He’s just mad,” he said, “and there’s nothing he can do about it.” Toth has performed this maneuver more than 4,000 times, and over that period, he has watched as his repo firm, Relentless, grew from a one-truck shop into a high-volume “collateral recovery agency” with 20 trucks and thousands of dollars in digital equipment. He has also seen his business transform from a simple one (find car, take car) into one that involves the sophisticated coordination of data and vehicle logistics.

Toth didn’t just happen upon the white Chevy, after all. His truck is customized with tens of thousands of dollars’ worth of cameras and image processors and can scan plates even while tearing down a highway. Earlier that day, he had received a tip: The bank that held the auto loan sent an electronic packet of information on the Chevy, gleaned from previous plate scans, that contained the car’s historical coordinates. Toth matched the data with the driver’s personal details, and with a laptop as his co-pilot, he used it to predict the Chevy’s location.

In the world of repossession, Toth’s ability to pull together strands of data into a coherent story is becoming the norm. In just a few years, companies like Relentless have quietly captured billions of GPS-stamped license-plate scans—accounting for more than half of all cars on the road today. That information is stored in a handful of centralized databases, managed by companies few people have ever heard of. There are, of course, more sophisticated ways to pinpoint someone’s location—GPS coordinates, cellphone bread crumbs, and facial recognition. But those are held in check by technical hurdles or established privacy policies. License-plate capture is both relatively easy and perfectly legal (at least in most states). And that’s had the unlikely effect of putting repo men like Toth at the frontier of personal data and surveillance.

When he finished uploading the images, Toth pulled out of the parking lot with a roar, the Chevy jouncing behind us. I had to admire his efficiency, but I was also left with the nagging question of how I might feel had the car been mine. Life is busy. It is not inconceivable to think of missing a few payments on my auto loan. And the plates on my Subaru station wagon back in New England must certainly be among the billions contained in one of the national private databases. Chances are, they’re cued up and waiting, ready to tell the story of my life.

Repossession agents have been fixtures of the auto industry since the rise of accessible credit in the 1920s. Banks hire them to collect a vehicle, sometimes the day it goes into default. The agent tows the car, and the bank pays between 300 to 800 bucks a claim. Successful agents have always had a head for numbers and facts, assembling a driver profile to predict the location of a parked car. But the ability to learn about drivers rapidly accelerated in the early 2000s. Repo sites such as Skiptracers and Merlin Data opened vast databases to agents—property addresses, military-service dates, electric-company bills, spouse names, criminal histories, bankruptcies—aggregating information with computer efficiency. Then the premier white-collar research company, LexisNexis, got into the field in 2004, with its Accurint site for repossessors and police, offering an even broader set of online tools (with a subscription). To counter that move, rival TLO.com, owned by credit bureau TransUnion, offered much the same data for just a buck per search. When license-plate cameras became available to repo agencies in 2009, many started mounting units on trucks. As an agent drove down the street, the cameras captured plates while computers ran them against cars on several banks’ default lists. By just cruising around, an agent could significantly boost the number of hits. A single truck could scan as many as 8,000 plates in one day.

"Relentless has hired a handful of ‘scouts’ whose sole purpose is to suck up license plates all day."

By 2010, license-plate scanners had become standard equipment for most urban repo firms, and the number of plates stored in national databases was growing by tens of millions a month. Even though there are about a quarter of a billion vehicles in the U.S. total, cars are often scanned a dozen times or more in different locations. The richer the data gets, the easier it is to make predictions about a driver’s home address, workplace, gym, or favorite restaurant. Digital Recognition Network (DRN) has one of the largest plate-capture databases in the country, with a fleet of more than 2,000 affiliated trucks and upwards of 1.8 billion scans. According to DRN, the technology increases the number of cars repossessed by 14 percent. “It allows repossession agents to work more efficiently and to look at data insights to more effectively predict where the car may be,” says DRN’s CEO, Chris Metaxas, a former vice president of sales at Lexis-Nexis who oversaw its government division.

Spurred by success, repo firms have begun to make data collection an even greater part of their operations. Toth’s employer, Relentless, has hired a handful of “scouts” whose sole purpose is to suck up license plates all day. One such person is Lori Jones. For eight hours a day, six days a week, the suburban mother of four tools around Cleveland in an unassuming Honda Fit. Hidden in its air vents is a $23,000 camera suite—including a 20-millimeter lens to spot cars in motion and a 50-millimeter lens to capture vehicles parked 60 feet up a driveway. Where the back seat used to be, a rack-mounted imaging system extracts plate numbers from a photo and stamps them with the time and GPS coordinates. Jones and three other scouts in the Relentless fleet capture nearly a million images per month in Ohio.

Typically, Jones focuses on large parking lots, apartment buildings, and businesses. When she gets a hit, a sound like an air-raid siren goes off. If the claim is parked, she hops out of her Fit to double-check the VIN number and call in a repo agent like Toth. She even scans during breaks. On an average day, she’ll be at the entrance to a local mall, picking at a Chipotle salad while monitoring a laptop screen with thousands of images flashing over it. “I like to be productive during my lunch hour,” she says cheerfully. It’s hard to imagine a less threatening face for personal surveillance.

Field agents like Scott Toth (pictured) rely on a number of different data streams to help them predict where a driver in default might be at any given point. Assignments arrive wirelessly from headquarters, along with background information. When Toth finds a claim, he does what repo men have always done: hauls it off and brings it in.
Photographs by Paul Shoul

As Toth hauled down Route 20 toward Euclid, a succession of miniature-golf courses, crowded soft-serve joints, and late-summer farm fields swept by in a blur. He glanced at his various screens and amiably shared trade secrets: During a long shift, a truck-stop shower is a small luxury at just $12; a pack of hot dogs works wonders in a neighborhood with ferocious canines; and winter is the best time to repo because few people are willing to run down the street in their underpants.

Toth first learned about the field 10 years ago, when his own car was repossessed. He started an agency, then became the field manager for Relentless. With his commissions, he quickly paid off his house; the job, he says, instills a healthy respect for the hazards of debt. As the volume at Relentless has increased, so too have the commissions, at least for top field agents like Toth. “You used to pick up maybe one car a day, though you had almost no information on the driver. Now we get as many as five a day, and I have everything I need right here,” he said, nodding to the electronics on his console. His laptop gives him the orders through a secure repossession portal, displaying the name of the driver, address, and historical plates. From the same portal he can follow a reclaimed car’s condition as it moves through processing back at Relentless (cleaning, taking inventory of the contents, and moving to auction in 45 days).

Outside the truck, four cameras sit on either side of the bed, each capable of collecting up to 1,800 scans per minute. To improve accuracy, each camera is ringed by powerful LEDs that shine infrared light undetectable to the human eye. The light helps illuminate plates in darkness at a distance of up to 60 feet. According to the camera’s manufacturer, Vigilant, it can also defeat license-plate covers meant to obscure scans.

The scan starts out as a low-resolution black-and-white, but image-processing software locates the license plate within it. Character-recognition software then extracts the plate number. Finally, the image, GPS data, time, and plate number are sent wirelessly to the database vendor in Forth Worth, Texas.

For all the technology that surrounds him, Toth is quick to point out that scanning plates remains a small part of the job; the main task is still grabbing cars and managing people under tense circumstances. Data may help him zero in, but it doesn’t do a whole lot when it comes to dealing with the vagaries of human nature. “You just never know what the day will bring,” he said, bearing down on a two-hot-dog lunch at the wheel.

As if on cue, the white Chevy strapped to his truck began to act up. First, it chirped and its lights flashed. Then the horn blared. In the distance, we could see a dirty white pickup accelerating toward us. The Chevy’s erstwhile owner, following us, still had his key fob and was remotely flipping the door locks and activating the horn. Toth checked the rearview and nodded. “He’s just trying to be a jerk,” he said. He had over 50 miles to lose the pickup before he arrived at the impound lot. “The last thing you want is to have people follow you back to home base,” he said. “If they can catch you when the gate is open, then they have the advantage.” Toth has had drivers try to block his path and attempt to retrieve the car by force.

For the next 15 minutes, the white pickup bombed down Route 20 to keep pace with us. When Toth pulled to the side, it passed us but soon reappeared ahead, crawling along the breakdown lane, biding time until we caught up. When Toth taxied into a Walmart lot, it followed and parked at a distance. Toth whipped around and pulled up next to it, affecting the stentorian tone of a high school principal: “Is there a problem?” For a split second, no one blinked.

Then the man’s face softened, and he shook his head. “No, I was just out . . . driving around,” he offered.

Perhaps the man needed a little more driving time to wrap his head around what had just occurred. Repo has never been easy or pleasant for those in default. But the speed and accuracy with which it can happen today perhaps makes it more jarring still. Having one’s personal data tracked is a fact of life. Credit scores are the most basic example, but in recent years we’ve added others: GPS, facial recognition, Web cookies, store loyalty cards, fitness data, Klout Scores. But in every case, the tracking seems somehow distant—separated either by technical and legal hurdles or by the notion that users can opt out. Right or wrong, those data streams don’t seem to carry real-world consequences. But when someone uses data to guess your favored haunts and reclaim your car, the consequences become very real, very fast.

Truck-mounted license-plate-capture cameras have become standard issue for most large repo agencies. The newest ones can record up to 1,800 images per minute. The frame rate is high enough that a driver can scan plates when both vehicles are traveling in opposite directions at speeds up to 60 mph.
Photographs by Paul Shoul

A few hours after dropping off the Chevy and taking a smoke break, Toth was stalking a yellow 2011 Camaro in a dark parking lot when a message popped up on his phone: All staff were to gather downtown over a case of Red Stripe. We soon arrived at a row of houseboats moored on a squiggly part of the Cuyahoga River, what’s called Collision Bend, and spotted the firm’s CEO, John Ziebro, swinging by his hands from a wooden gate over the river. “You don’t want to end up in that water,” Toth cracked, pointing at the troubled canal that infamously caught on fire in the 1960s. Standing in front of an antique houseboat was John’s brother David Ziebro, a co-owner of Relentless, along with one of the most successful female repo agents in the industry, another co-owner, Amy Bednar.

As everyone dug into cartons of Vietnamese takeout, the three owners encircled me to discuss license-plate scanning, about which they were both proud and a little defensive. Scanning by private industry has become a controversial topic, the subject of active bills in more than 17 state legislatures and a practice outlawed in New Hampshire, Maine, and Vermont. John Ziebro pointed out that the technology saves the banks millions, allowing them to offer consumers more loans under more liberal underwriting policies and, in some cases, with lower interest rates. There’s also the law-enforcement argument: Police departments across the country can order license-plate scans during an active investigation. When the vendor of the Ziebros’ cameras, Vigilant, surveyed more than 500 police departments in 2013, respondents cited 2,180 crimes solved with the help of the data, including homicides, drug trafficking, and in-progress abductions. Almost 40,000 stolen cars have been recovered too. In part because of the law-enforcement benefits of private plate scanning, lawmakers recently overturned a state ban in Utah and tabled a proposed ban in California.

Even so, as we talked I started thinking about the life cycle of databases: When they start, their users tease out a few simple connections between data points. But as they evolve, they can support sophisticated predictive models of consumer habits. When I spoke with DRN’s Metaxas, he talked about the company’s interest in exploring how license-plate-scan data could boost customer service by predicting a consumer’s financial trouble. Banks, he said, are starting to look at the data before a car goes into default. “The real goal is not to repossess the vehicle,” said Metaxas. “If you can look at data to more effectively predict where the car may be, you will help the finance company improve its customer life cycle.”

For example, if a series of plate scans indicates that a certain car no longer parks at the owner’s usual workplace, the bank could infer a change of employment and may make a phone call to offer a lower monthly payment. It would not be much different from how credit card companies call customers when they notice an unusual pattern of transactions. For that matter, license-plate data could have value to customers beyond banking. Metaxas has voiced interest in selling database access to insurers, credit card companies, and nonauto lenders. It’s not hard to foresee a scenario in which the use is broader still: drivers subject to coupon offers and marketing messages whether they want them or not. In the U.K., a motor-oil company illegally scanned drivers’ plates as they passed on the freeway, cross- referencing the make and model of car, and flashed the type of oil the drivers should use on a billboard.

Critics have raised concerns about the security of private license-plate scans, which are less regulated than those captured by police. For Relentless, the scans reside in DRN’s database, which, according to Metaxas, is “managed and maintained to the highest security standards.” The problem, say privacy advocates such as Jennifer Lynch, a senior staff attorney with the Electronic Frontier Foundation, is that such security measures are not subject to public audit. “We don’t know how they’re securing their systems and who has access—we just sort of have to rely on the company’s word,” she says. If a breach occurred, anyone could abscond with bulk scans. That’s not as bad as it sounds: A hacker would need to tie records to real identities in order to misuse them, a task that would require breaking into a state’s locked motor-vehicle registry as well.

In the end, the most profound impact on people’s lives may not be triggered by data breaches but by the legal use of plate scans by private companies. “There are a lot of public places where people still would like to maintain their privacy,” says Lynch, “whether they’re driving to a firing range, church, mosque, abortion clinic, or gay bar.”

"We don’t know how they’re securing their systems and who has access—we just sort of have to rely on the company’s word."

The French philosopher Michel Foucault had the idea that once citizens believe they’re being observed, they start to internalize a desire to avoid anything that would cause offense to those in power. If bankers and insurers are keeping tabs on plates—and they have the ability to approve loans and offer low insurance premiums—then wouldn’t it behoove a driver to travel through a better part of town or forgo buying an affordable house in a low-end neighborhood?

Part of the problem is that the scans tell someone a story about you, but if you’re not in control of the story or don’t even know it’s being told, it can seem manipulative. Personal data has always been, to a degree, about an exchange of value. Companies like Facebook get your data, but you get something in return (reconnection with high school buddies). With plate scans the trade is decidedly one-way. Auto financers get to mitigate risk—and lock drivers out of the story. A compromise could be making one’s own plate scans as transparent as credit card transactions. A password-protected site with recent scans would help lessen the sting of private surveillance and provide value—at least I could see where my teenager has been driving. But private license-plate-scanning companies have been lobbying for tighter restrictions on this data, arguing that plate scans released to private citizens create greater potential for misused information.

It was past midnight when the discussion on the river finally wound down. With the food and beer dispatched, it was time for the night’s main attraction: testing a camera-mounted hobby quadcopter. David Ziebro demoed the chopper, showing us the aerial video and enthusiastically explaining, “Believe it or not, this will be an important tool for us in the future.” Toth nursed his beer and issued a skeptical glance, but David Ziebro soldiered on, pointing out that more than 30 percent of defaulted vehicles still slip away from repossession agents forever, often hidden behind tall fences on private property. If the Federal Aviation Administration allows it in 2015, a remotely operated vehicle like the one on hand could be a legal way to spot them from public airspace above a person’s house.

As the black quadcopter swooped and dove over neighboring houseboats, it was a reminder that repo’s future lies in its ability to find new ways to push the boundaries of privacy. During the week I spent with them, the repossession agents of Relentless were always rule-abiding, cautious, and respectful, but their overall mission is, of course, to find as many cars as possible. How they can do so without affecting the 99.5 percent of us not in default remains an open question.

57 Years Of Computer Vision (And Counting)

Put enough processing power behind a digital camera and you’ve got “computer vision,” the process by which machines can analyze the visual world. Since the advent of the transistor, systems that can do this have become cheaper, faster, and smaller. Here’s a quick overview of the highs and lows in the technology’s history.

1957: The first computer scanner copies a 2-inch photo of the inventor Russell A. Kirsch’s son.

1964: Defense contractors Woody Bledsoe, Helen Chan Wolf, and Charles Bisson launch a facial-recognition system for an unnamed intelligence agency.

1976: U.K. police invent a license-plate recognition system. The first major installation is in 1993, as a “ring of steel” around London to counteract IRA bombings.

1985: The first autonomous land vehicle, made by Lockheed Martin, Carnegie Mellon, and others, uses video-based imaging to follow a road at three mph.

2004: Mars rovers Spirit and Opportunity land on the Red Planet using computer vision to calculate distance and position on descent.

2008: The first 3-D pizza-sorting system, the “Scorpion,” builds a 3-D profile of 7,200 products per hour using multiple cameras. It automatically culls misshapen pies.

2010: Shortly thereafter, a man hacks the device to track his own nipples for the first time.

2014: Phone processors become fast enough to handle pattern recognition. Apps such as Vhoto pick worthy stills from a video based on action sequences and facial expressions.

This article originally appeared in the July 2014 issue of Popular Science.









Database Of Loans Shows That English Is The World's Top Borrower And Lender Of Words

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photo of an Internet cafe in Ho Chi Minh City, Vietnam, 2008
"Internet" is a Commonly Borrowed English Word
This Internet café is in Ho Chi Minh City, Vietnam

Chemise, schadenfreude and Tennessee*… English seems to have borrowed words from nearly every other language English-speakers have encountered. So it's charming to think that now, English is the number-one donor of words to other languages in the world, as the Boston Globe reports.

In Finland, Globe reporter Britt Peterson encountered "hot jooga." In Japan, "furai" actually comes from "fry," with some syllables added. The French have puzzlingly taken the English word "smoking" to mean a tuxedo. (Then again, English took the French word for a shower, douche, and turned it into… well, you know.)

English's dominance as a word exporter is a sign of its importance as an international tongue. The rate of a language's lending is one marker of its prestige, Martin Haspelmath, a Max Planck Institute linguist, told the Boston Globe. Mandarin Chinese, a longtime imperial power in Asia, has the lowest rate of word borrowings out of 41 languages Max Planck researchers studied to make a database of world loanwords.   

The rate of a language's lending is one marker of its prestige.

One corollary of this is that the lending and borrowing of words is not always a friendly transaction. Often languages that borrow many words did so under duress, during occupations or wars. The Vietnamese use of the French words for makeup and flan is a remnant of French colonialism there. Sometimes countries will also try to resist word borrowing, in an attempt to maintain the national character of their languages. Nowadays, that often means resisting English. The Globe has some great examples.

As for English, although it's powerhouse now, it's also the biggest borrower of words among the languages the Max Planck Institute studied. Forty-two percent of English words are loanwords, which may explain why it's such a hairy beast for adults to learn.

*The origins of these words are French, German and Cherokee.

[Boston Globe]








An Electronic Tag You Activate With A Phone Call

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photo of a plastic, printed electronic tag
A Printable Electronic Tag
From "All-printed diode operating at 1.6 GHz" by Negar Sani et al., PNAS, 2014

Bzzz bzzz! Who are researchers calling in this video? It's not a person. It's a thin little electronic tag. The call activates the tag's display, which then shows some graphics. The tag's makers think it's the first all-printed electronic label that's able to communicate directly with a cellphone.

Several research groups are working on making electronic tags like this. Researchers hope that in the future, tags equipped with sensors would send data about what they sense to the cloud.  

For now, however, electronic tags like this are still in their earliest stages of development. This new tag, developed by researchers in Sweden and the U.K., doesn't do much more than turn on. It's slow to respond—it takes about 10 seconds—and it practically needs to touch a cellphone to do just that. Still, the tag has a couple of impressive features. It's durable, lasting for more than two years, the researchers reported in a paper published today in the Proceedings of the National Academy of Sciences. In addition, while it's always a challenge to power small electronics with equally small batteries, this tag has a unique solution for that problem. The tag actually captures a portion of nearby cellphone signals and powers its display with that signal.

The tag is made of plastic, with a printed aluminum-foil antenna and a special diode that the U.K.-Swedish researchers developed. The antenna picks up standard, Global System for Mobile signals cellphones produce when they make a call. The diode converts that signal to DC voltage. The voltage then goes to an experimental display, called an electrochromatic display, that requires little power. The lab that made the tag pioneered electrochromatic displays, too.








Antibody Treatment Developed For Dogs With Cancer

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Michael Bernkopf / Vetmeduni Vienna

Dogs, like people, can get cancer--and research has shown that canine and human cancers can be very much alike. Austrian scientists recently found that the receptor proteins that coat the surface of various canine tumors are 91 percent similar to human cancers. Taking the next step, they took antibodies from mice and tweaked them so that they were able to bind to canine cancer cells, which in some cases slowed the growth of canine tumors, and in other cases led to the death of the cancer. These antibodies could be used to treat dogs with a variety of cancers in the future, the researchers wrote in their study, published in Molecular Cancer Therapeutics

"We expect dogs to tolerate these anti-cancer antibodies well," said study co-author Erika Jensen-Jarolim. "This will be investigated in clinical studies in the future and is expected to greatly improve the treatment as well as the diagnosis of cancer in dogs."

The approach is a type of immunotherapy, which has been used to treat human cancers for about 20 years. Antibodies that bind to cancer cells, often initially derived from mice, are modified to work in humans, or humanized--and these are called monoclonal antibodies. But in this case the antibodies were "caninized" (not to be confused with "canonized", oh ye St. Bernards). It's the first time cancer immunotherapy has been pursued in dogs, although the animals can receive other caner treatments such as chemotherapy.

By binding to cancer cells, the modified antibodies can lead to cell death or help the dog's body naturally fight them off, or they could also deliver radiation directly to tumors. But they can also be tagged with fluorescent proteins that make the cancer visible during a CT scan, for example. By understanding how small changes in the chemical structure of these antibodies changes their binding affinity, the work could help find new antibodies for variants of human cancers, wrote the study authors, from the University of Veterinary Medicine Vienna, the Medical University of Vienna and the University of Vienna.








Smarter People Are More Likely To Move To Cities

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Cities are more crowded, more polluted, and more stressful to live in than any other kind of man-made environment in the world. But they are also where the smartest people want to live.

A new study of American mobility patterns suggests that people with higher intelligence are more likely to be moving in and out of cities. Among them, those individuals who originate from rural towns exhibit the highest forms of intelligence. The findings, now online, will be published in the September/October issue of the journal Intelligence.

The study, conducted by psychologist Markus Jokela from the University of Helsinki, traced the 16-year migratory patterns of 11,500 Americans between the ages of 15 and 23, starting in 1979. Jokela found that people who moved from rural and suburban areas to central cities typically had much higher intelligence scores than people who stayed put or made other kinds of movements. Those same people also tended to leave central cities for suburban environments, to a lesser degree.

The findings themselves aren’t particularly revelatory – it has long been thought that smart young people flock to the cities for better education and higher-paying jobs, and move out to the suburbs in order to raise a family. But the most striking part about Jokela’s study is the numbers; most notably a 12-point intelligence gap between rural residents who stayed in their hometown and those who moved to central cities. When Jokela controlled for socioeconomic status, this gap was reduced to 4 point. While this is less stunning, it does indicate that intelligence plays a role in where Americans decide to live. “The most general message is that the selective residential mobility we observe associated with socioeconomic status has its psychological underpinnings in intelligence differences,” Jokela told CityLab.

While the results are interesting, they should be read with caution. Jokela’s analysis illustrates that intelligence and migration are connected, but not whether intelligence actually influenced individuals’ decision to move. The dataset for the study is also cut off after 1996, and American migratory patterns may have changed a great deal in the last two decades.

The biggest takeaway, however, is that smart people are constantly anxious to keep moving around. If you live in the city, you may want to talk to your new neighbor from that rural town you’ve never heard of – they probably have a few things to teach you, before they leave for greener pastures. 

[CityLab]








The Sound From Ships May Attract Unwanted Critters

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photo of a U.S. Navy ship
Barnacle Hull House
U.S. Navy via Flickr

A ship at anchor isn't necessarily quiet. Many crews leave their generators on while at anchor, to power refrigerators or air conditioners. But maybe they should consider shutting down, if they can. The thrum of a ship's generator can attract sea squirt larvae from as far away as 500 meters, according to a new study.

The little larvae are a big problem for ships. Sea squirts, barnacles, algae and other sea creatures that attach themselves permanently to boat hulls create excess drag that the U.S. Navy estimates costs it $250 million a year. The organisms also travel the world this way, spreading to ecosystems where they don't belong. Many groups are working on coatings for ship hulls that discourage hangers-on, but Australian fisheries scientist Justin McDonald recently looked at the problem from a different angle, Australian broadcaster ABC News reports. McDonald studied whether the noises ships make encourage sticky sea creatures.

By recording the sounds of ships at bay, observing where sea squirts attach, and studying sea squirts in the lab, McDonald and his colleagues determined that sound does matter. Coral reefs are actually quite noisy, so the squirt larvae may think grumbling ships are homey reefs, McDonald told ABC. They head toward the sound and settle on the first hard surface they find, and then they're there for life.

[ABC News]








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