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Science

Submission + - A Wet Way to Better Burning? (sciencemag.org)

Submitted by sciencehabit
sciencehabit writes: Researchers in New York state report creating a new long-lived catalyst that uses the energy in sunlight to generate hydrogen gas, a carbon-free fuel. With further improvements, the advance could lead to systems that use sunlight to split water molecules, generating a fuel that can power cars and trucks without emitting any greenhouse gases.
Facebook

Submission + - Facebook's Corona: When Hadoop MapReduce Wasn't Enough (slashdot.org)

Submitted by
Nerval's Lobster
Nerval's Lobster writes: "Facebook’s engineers face a considerable challenge when it comes to managing the tidal wave of data flowing through the company’s infrastructure. Its data warehouse, which handles over half a petabyte of information each day, has expanded some 2500x in the past four years—and that growth isn’t going to end anytime soon.

Until early 2011, those engineers relied on a MapReduce implementation from Apache Hadoop as the foundation of Facebook’s data infrastructure. Still, despite Hadoop MapReduce’s ability to handle large datasets, Facebook’s scheduling framework (in which a large number of task trackers that handle duties assigned by a job tracker) began to reach its limits. So Facebook’s engineers went to the whiteboard and designed a new scheduling framework named “Corona.”"
Biotech

Submission + - Proteins made to order (nature.com)

Submitted by
ananyo
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."
Power

Submission + - Quantum entangled batteries could be the perfect power source (extremetech.com)

Submitted by
MrSeb
MrSeb writes: "Two European theoretical physicists have shown that it may be possible to build a near-perfect, entangled quantum battery. In the future, such quantum batteries might power the tiniest of devices — or provide power storage that is much more efficient than state-of-the-art lithium-ion battery packs. In a quantum system, some quantum states have energy that can be extracted, reducing the system to a passive, neutral energy state. Robert Alicki of the University of Gdansk in Poland, and Mark Fannes of the University of Leuven in Belgium, theorize that it should be possible to build a quantum battery that is full of energy-rich quantum states — and then, somehow, recharge it when you run out of juice. Better yet, the physicists also theorize that quantum entanglement could be used to create an even more efficient quantum battery. In essence, Alicki and Fannes say that you can link together any number of quantum batteries, allowing you to extract all of the stored energy in one big gulp. Their research paper goes on to say that with enough entanglement, these batteries would be perfect — with no energy lost/wasted during charge or discharge."
Australia

Submission + - Australian Government Scraps Plan To Filter The Internet (gizmodo.com.au)

Submitted by lukehopewell1
lukehopewell1 writes: After three years of trying to pass a controversial plan to filter the internet from Refused Classification (material rated above X) content, the Australian Government has tonight finally walked away from its plans to subject the country's internet users to a mandated "clean-feed".

Instead the government will now compel Australian internet service providers to implement a filter that blocks out only the material listed on Interpol's blacklist.
User Journal

Journal Journal: Not being Employed

Journal by physburn

Years, a online dot-com company, years of programming experience, and a long CV of previous work, is not getting me a job in the current conditions.
Being out of work for 18 months now, and getting poor.

Submission + - Russian find a new particle (science20.com)

Submitted by
physburn
physburn writes: "The Russian Dubna Nuctron accelerator has reported finded a new elementary particle. The E(38) Boson at 38 MeV, it interacts only with quarks and gluons, but decays (via quark diagrams) into pairs of photons. The particle was previously reported in February from data from the BaBar experiment, and the new data seems to confirm its existence."
Hardware

Submission + - A Quantum Computer Finds Factors - 15 mostly equals 3x5 (i-programmer.info)

Submitted by mikejuk
mikejuk writes: The Shor quantum factoring algorithm has been run for the first time on a solid state device and it successfully factored a composite number. A team from UCSB has managed to build and operate a quantum circuit composed of four superconducting phase qubits. The design creates entangled bits faster than before and the team verified that entanglement was happening using quantum tomography. The final part of the experiment implemented the Shor factoring algorithm using 15 as the value to be factored. In 150,000 runs of the calculation, the chip gave the correct result 48% of the time. As Shor's algorithm is only supposed to give the correct answer 50% of the time, this is a good result. Is this the start of the quantum computing revolution?
Space

Submission + - Earth's Corner of the Galaxy Just Got a Little Lonelier

Submitted by
Hugh Pickens writes
Hugh Pickens writes writes: "Only 4 stars, including Barnard's Star, are within 6 light years of the Sun, and only 11 are within 10 light years. That's why Barnard's star, popularized in Robert Forward's hard-sf novel, "Flight of the Dragonfly," is often short-listed as a target for humanity's first interstellar probe. Astronomers have long hoped to find a habitable planet around it, an alien Earth that might someday bear the boot prints of a future Neil Armstrong, or the tire tracks of a souped-up 25th-century Curiosity rover. But now Ross Anderson reports that a group of researchers led by UC Berkeley's Jieun Choi have delivered the fatal blow to Barnard's Star when they revealed the results of 248 precise Doppler measurements that were designed to examine the star for wobbles indicative of planets around it. The measurements, taken over a period of 25 years, led to a depressing conclusion: "the habitable zone around Barnard's star appears to be devoid of roughly Earth-mass planets or larger . . . [p]revious claims of planets around the star by van de Kamp are strongly refuted." NASA's Kepler space telescope, which studies a group of distant Milky Way stars, has found more than 2,000 exoplanet candidates in just the past two years, leading many to suspect that our galaxy is home to billions of planets, a sizable portion of which could be habitable. "This non-detection of nearly Earth-mass planets around Barnard’s Star is surely unfortunate, as its distance of only 1.8 parsecs would render any Earth-size planets valuable targets for imaging and spectroscopy, as well as compelling destinations for robotic probes by the end of the century.""

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