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Science

Supersymmetry Theory Dealt a Blow 143

Posted by samzenpus from the state-of-things dept.
Dupple writes in with some news from the team at the Large Hadron Collider. "Researchers at the Large Hadron Collider have detected one of the rarest particle decays seen in Nature. The finding deals a significant blow to the theory of physics known as supersymmetry. Many researchers had hoped the LHC would have confirmed this by now. Supersymmetry, or SUSY, has gained popularity as a way to explain some of the inconsistencies in the traditional theory of subatomic physics known as the Standard Model. The new observation, reported at the Hadron Collider Physics conference in Kyoto, is not consistent with many of the most likely models of SUSY. Prof Chris Parke, who is the spokesperson for the UK Participation in the LHCb experiment, told BBC News: 'Supersymmetry may not be dead but these latest results have certainly put it into hospital.'"
Science

Artificial Self-Healing Skin Can Sense Touch 18

Posted by samzenpus from the touchy-feely dept.
thomst writes "Tim Wogan reports that chemical engineer Zhenan Bao of Stanford University in Palo Alto, California, and her team have increased the conductivity of a self-healing polymer by incorporating nickel atoms. The polymer they have produced is sensitive to applied forces like pressure and torsion (twisting) because such forces alter the distance between the nickel atoms, changing the electrical resistance of the polymer. Their work is published online in the November 1 issue of Nature Nanotechnology (abstract here, full article paywalled). Now Bao and her team are working on making the polymer more flexible."
Sci-Fi

Duke University Creates Perfect, Centimeter-scale Invisibility Cloak 96

Posted by samzenpus from the abracadabra dept.
MrSeb writes "Scientists at Duke University have created the first invisibility cloak that perfectly hides centimeter-scale objects. While invisibility cloaks have been created before, they have all reflected some of the incident light, ruining the illusion. In this case, the incident light is perfectly channeled around the object, creating perfect invisibility. There are some caveats, of course. For now, the Duke invisibility cloak only works with microwave radiation — and perhaps more importantly, the cloak is unidirectional (it only provides invisibility from one very specific direction). The big news here, though, is that it is even possible to create an invisibility cloak of any description. It is now just a matter of time before visible-light, omnidirectional invisibility cloaks are created."
Earth

Global Warming Felt By Space Junk and Satellites 224

Posted by samzenpus from the it's-getting-hot-in-here dept.
An anonymous reader writes in with a story about another side effect of increased carbon dioxide in the atmosphere. "Rising carbon dioxide levels at the edge of space are apparently reducing the pull that Earth's atmosphere has on satellites and space junk, researchers say. The findings suggest that man made increases in carbon dioxide might be having effects on the Earth that are larger than expected, scientists added... in the highest reaches of the atmosphere, carbon dioxide can actually have a cooling effect. The main effects of carbon dioxide up there come from its collisions with oxygen atoms. These impacts excite carbon dioxide molecules, making them radiate heat. The density of carbon dioxide is too thin above altitudes of about 30 miles (50 kilometers) for the molecules to recapture this heat. Cooling the upper atmosphere causes it to contract, exerting less drag on satellites."
Shark

X-Ray Laser For Creating Supercharged Particles 55

Posted by samzenpus from the charge-it-up dept.
William Robinson writes "Scientists have found way to use X-Ray Lasers to create supercharged particles. The specific tuning of the laser's properties can cause atoms and molecules to resonate. The resonance excites the atoms and causes them to shake off electrons at a rate that otherwise would require higher energies. This could be used to create highly charged plasma."
Biotech

Better Brain Implants With Ultrathin Carbon Fiber Electrodes 82

Posted by samzenpus from the all-the-better-to-track-you dept.
An anonymous reader writes "A new neural interface delicate enough not to damage nerve tissue, but resilient enough to last decades has been made. Made from a single carbon fiber and coated with chemicals, the technology is believed to be fully resistant to proteins in the brain. From the article: 'The new microthread electrode, designed to pick up signals from a single neuron as it fires, is only about 7 micrometers in diameter. That is the thinnest yet developed, and about 100 times as thin as the conventional metal electrodes widely used to study animal brains. “We wanted to see if we could radically change implant technology,” says Takashi Kozai, a researcher at the University of Pittsburgh and the lead author on the paper, published today in the journal Nature Materials. “We want to see an electrode that lasts 70 years.”'"
ISS

NASA DTN Protocol: How Interplanetary Internet Works 109

Posted by samzenpus from the in-space-nobody-can-hear-you-click dept.
First time accepted submitter GinaSmith888 writes "This is a deep dive in the BP protocol Vint Cerf developed that is the heart of NASA's Delay-Tolerant Networking, better known as DTN. From the article: 'The big difference between BP and IP is that, while IP assumes a more or less smooth pathway for packets going from start to end point, BP allows for disconnections, glitches and other problems you see commonly in deep space, Younes said. Basically, a BP network — the one that will the Interplanetary Internet possible — moves data packets in bursts from node to node, so that it can check when the next node is available or up.'"
Biotech

'Treasure Trove' In Oceans May Bring Revolutions In Medicine and Industry 107

Posted by Soulskill from the or-may-bring-sea-monsters dept.
dryriver sends this excerpt from the Guardian: "Scientists have pinpointed a new treasure trove in our oceans: micro-organisms that contain millions of previously unknown genes and thousands of new families of proteins. These tiny marine wonders offer a chance to exploit a vast pool of material that could be used to create innovative medicines, industrial solvents, chemical treatments and other processes, scientists say. Researchers have already created new enzymes for treating sewage and chemicals for making soaps from material they have found in ocean organisms. 'The potential for marine biotechnology is almost infinite,' says Curtis Suttle, professor of earth, ocean and atmospheric sciences at the University of British Columbia. 'It has become clear that most of the biological and genetic diversity on Earth is – by far – tied up in marine ecosystems, and in particular in their microbial components. By weight, more than 95% of all living organisms found in the oceans are microbial. This is an incredible resource.'"
Science

Cockatoo Manufactures, Uses Tools 75

Posted by Soulskill from the already-smarter-than-my-neighbor dept.
grrlscientist writes with news of a cockatoo named Figaro, who was observed to construct and use his own tools to retrieve objects that were outside of his cage. Quoting: "One day, a student caregiver noticed Figaro pushing a stone pebble through the aviary wire mesh, where it fell on a wood structural beam. Unable to retrieve the stone with his foot, Figaro then fetched a piece of bamboo and again attempted to retrieve the stone using the bamboo stick. ... During the next three days, the researchers ran trials of the original scenario, which was repeated ten times but substituting a cashew nut for the pebble. All trials were captured on video and the process of tool manufacture and use was documented photographically. ... 'Figaro made a new tool for every nut we placed there and each time the bird was successful in obtaining it,' reports cognitive biologist Alice Auersperg of the University of Vienna, who led the study (PDF). During these trials, Figaro used 10 tools, nine of which he manufactured and one of which was ready-made."
Earth

NRC Report Links Climate Change To National Security 242

Posted by Soulskill from the let's-see-who-the-patriots-are-now dept.
WOOFYGOOFY writes "The NY Times and Voice Of America are reporting on a study by the U.S. National Research Council (PDF) which was released Friday linking global climate change to national security. The report, which was developed at the request of the C.I.A., characterizes the threats posed by climate change as 'similar to and in many cases greater than those posed by terrorist attacks. 'Climate-driven crises could lead to internal instability or international conflict and might force the United States to provide humanitarian assistance or, in some cases, military force to protect vital energy, economic or other interests, the study said.' If the effect of unaddressed climate change is the functional equivalent of terrorist attacks on the nation, does the Executive Branch, as a matter of national security, have a duty and a right to begin to act unilaterally against climate change irrespective of what Congress currently believes?"
Earth

Climate Change Could Drive Coffee To Extinction By 2080 345

Posted by timothy from the right-here-in-ponca-city dept.
Hugh Pickens writes "Coffee is the world's favorite beverage and the second-most traded commodity after oil. Now Nick Collins reports that rising global temperatures and subtle changes in seasonal conditions could make 99.7 per cent of Arabica-growing areas unsuitable for the plant before the end of the century and in some areas as soon as 2020. Even if the beans do not disappear completely from the wild, climate change is highly likely to impact yields. The taste of coffee, a beverage of choice among Slashdot readers, will change in future decades. 'The worst case scenario, as drawn from our analyses, is that wild Arabica could be extinct by 2080,' says Justin Moat. 'This should alert decision makers to the fragility of the species.'" Read more, below.
It's funny. Laugh.

Would Charles Darwin Have Made a Good Congressman? 155

Posted by Soulskill from the descent-by-natural-election dept.
sciencehabit writes "It's a good 130 years too late to answer that question empirically, but at least symbolically Charles Darwin has won support from more than 4000 voters in the 10th congressional district of Georgia, thanks to an initiative headed by James Leebens-Mack, a plant biologist at the University of Georgia in Athens. Like many others, Leebens-Mack was deeply troubled by a speech his Congressman, Paul Broun (R-GA), gave at an Athens church in October deriding teachings on evolution, embryology, and the big bang theory as 'lies straight from the pit of Hell.' Broun, a medical doctor, is a member of the U.S. House of Representative's Committee on Science, Space, and Technology, and chair of its Subcommittee on Investigations and Oversight. Leebens-Mack says the 'protest vote should make it clear to future opponents that there are a lot of people in the district who are not happy with antiscience statements.'"
Moon

NASA Pondering L2 Outpost, Return To Moon 122

Posted by Soulskill from the moon-mars-L2-just-go-somewhere dept.
New submitter Joiseybill writes "Now that the election is over, any voters that may have been influenced can rest easy. Space.com reports that the agency has been 'thinking about setting up a manned outpost beyond the moon's far side, both to establish a human presence in deep space and to build momentum toward a planned visit to an asteroid in 2025.' Space policy expert John Logsdon said, 'NASA has been evolving its thinking, and its latest charts have inserted a new element of cislunar/lunar gateway/Earth-moon L2 sort of stuff into the plan. They've been holding off announcing that until after the election.' According to the article, 'Rumors currently point toward parking a spacecraft at the Earth-moon L2 gateway, so NASA (and perhaps international partners) can learn more about supporting humans in deep space. Astronauts stationed there could also aid in lunar exploration — by teleoperating rovers on the moon's surface, for example.'"
Biotech

Ear-Powered Medical Devices In Development 20

Posted by Soulskill from the by-solar-panels-on-the-back dept.
cylonlover writes "Our ears work by converting the vibrations of the eardrum into electrochemical signals that can be interpreted by the brain. The current for those signals is supplied by an ion-filled chamber deep within the inner ear – it's essentially a natural battery. Scientists are now looking at using that battery to power devices that could be implanted in the ear, without affecting the recipient's hearing. The 'battery chamber' is located in the cochlea. It is internally divided by a membrane, some of the cells of which are designed to pump ions. The arrangement of those specialized cells, combined with an imbalance of potassium and sodium ions on opposite sides of the membrane, are what creates the electrical voltage. A team of scientists from MIT, the Massachusetts Eye and Ear Infirmary, and the Harvard-MIT Division of Health Sciences and Technology have recently succeeded in running an ultra-low-power radio-transmitting chip using power from these battery chambers – in guinea pigs' ears."
Biotech

Proteins Made To Order 51

Posted by samzenpus from the molecules-to-go dept.
ananyo writes "Proteins are an enormous molecular achievement: chains of amino acids that fold spontaneously into a precise conformation, time after time, optimized by evolution for their particular function. Yet given the exponential number of contortions possible for any chain of amino acids, dictating a sequence that will fold into a predictable structure has been a daunting task. Now researchers report that they can do just that. By following a set of rules described in a paper published in Nature (abstract), a husband and wife team from David Baker's laboratory at the University of Washington in Seattle has designed five proteins from scratch that fold reliably into predicted conformations. The work could eventually allow scientists to custom design proteins with specific functions."

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