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Sweat ducts make skin a memristor
NewScientist    Share    Share on FacebookTwitterShare on LinkedinE-mail article
The missing link of electronics, which evaded discovery until 2008, was at our fingertips the whole time. Ordinary human skin behaves like a memristor, a device that "remembers" the last current it experienced and varies its resistance accordingly. More

'Jumping' artificial atom is tracked in real time
Physics World    Share    Share on FacebookTwitterShare on LinkedinE-mail article
A group of physicists say they are first to watch a macroscopic "artificial atom" jumping between energy levels in real time. The new capability to continuously monitor the energy states of a superconducting quantum bit, or qubit, could help to correct errors in quantum computations, tightening the race between these solid-state systems and quantum computers based on trapped atoms. More

Quantum no-hiding theorem experimentally confirmed for first time
PhysOrg    Share    Share on FacebookTwitterShare on LinkedinE-mail article
The Quantum no-hiding theorem, addresses information loss in the quantum world. If information is missing from one system then it must simply be residing somewhere else in the Universe. For the first time, a team of physicists as experimentally tested and confirmed the no-hiding theorem. Read the associated Physical Review Letters article. More

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Gravity's bias for left may be writ in the sky
NewScientist    Share    Share on FacebookTwitterShare on LinkedinE-mail article
Is gravity left-handed? An answer could provide a clue to a long-sought theory of quantum gravity - and might be within our grasp by 2013. To discover gravity's handedness, researchers are suggesting that we look to the cosmic microwave background, relic radiation from the big bang. More

Minimum to the max: Shifting solar plasma could account for sun's recent slumber
Scientific American    Share    Share on FacebookTwitterShare on LinkedinE-mail article
A few years back, the sun went into a lull, its activity tailing off like a rambunctious child settling down for a nap. The lull was no surprise; it is a normal part of the sun's roughly 11-year cycle of activity, over which the number of magnetized regions known as sunspots waxes and wanes. But the sun did not snap out of its most recent slumber as expected, leading to the deepest solar minimum in about 100 years. A new model for the flow of the sun's plasma may help explain the most recent solar minimum, when sunspots all but disappeared for an unusually long time. More

Quantum engineers remove roadblock in developing next-generation technologies
PhysOrg    Share    Share on FacebookTwitterShare on LinkedinE-mail article
An international team has removed a major obstacle to engineer quantum systems that will play a key role in the computers, communication networks, and even biomedical devices of the future. Read the associated Physical Review Letters article.

Kepler's ongoing exoplanet findings show bizarre solar systems and peculiar planets
Popular Science    Share    Share on FacebookTwitterShare on LinkedinE-mail article
As astronomers continue mining data from the Kepler telescope, the planetary peculiarities keep on coming. We've already seen the smallest rocky world, 54 planets in a Goldilocks comfort zone around their stars, and even the possibility of planets sharing the same orbit. Add to that mix planetary resonance and superfast exoplanet "years." More

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Bilingualism key to the survival of a language
PhysicsWorld    Share    Share on FacebookTwitterShare on LinkedinE-mail
Physicists in Spain are challenging the idea that two languages cannot continue to exist side-by-side within a society. But while the findings may spell good news for some languages, it still leaves doubts over the long-term survival of more isolated languages such as Welsh and Quechua. More

Stellar wormholes may exist
Science News    Share    Share on FacebookTwitterShare on LinkedinE-mail article
Some stars may contain wormholes, throatlike tunnels connecting distant points in spacetime, a team of physicists proposes. But other researchers are having a hard time swallowing the idea. "It's a nice piece of speculative work, but it is speculation," says theoretical physicist Matt Visser of Victoria University of Wellington in New Zealand.  More

APS Weekly NewsBrief
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