Monday, December 24, 2012

Phys.Org Newsletter Week 51

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Here is your customized Phys.org Newsletter for week 51:

Tau Ceti: Sun-like star only twelve light years away may have a habitable planet
(Phys.org)�An international team of astronomers has discovered that Tau Ceti, one of the closest and most Sun-like stars, may host five planets, including one in the star's habitable zone ('Goldilocks Zone').

Math formula gives new glimpse into the magical mind of Ramanujan
(Phys.org)�December 22 marks the 125th anniversary of the birth of Srinivasa Ramanujan, an Indian mathematician renowned for somehow intuiting extraordinary numerical patterns and connections without the use of proofs or modern mathematical tools. A devout Hindu, Ramanujan said that his findings were divine, revealed to him in dreams by the goddess Namagiri.

CMS, ATLAS experiments report Higgs-like particle close to the 7 sigma level
(Phys.org)�The latest research findings from the Large Hadron Collider (LHC) at CERN show that the CMS and ATLAS experiments are now reporting that the significance of their observation of the Higgs-like particle is standing close to the 7 sigma level, well beyond the 5 required for a discovery, and that the new particle's properties appear to be consistent with those of a Standard Model Higgs boson.

Human role in climate change now virtually certain, leaked IPCC report says
A leaked draft report by the world's top climate scientists has found that is virtually certain that humans are causing climate change but parts of it have been wildly misinterpreted by climate change deniers, experts said.

WMAP team releases final results, based on nine years of observations
(Phys.org)�Since its launch in 2001, the Wilkinson Microwave Anisotropy Probe (WMAP) space mission has revolutionized our view of the universe, establishing a cosmological model that explains a widely diverse collection of astronomical observations. Led by Johns Hopkins astrophysicist Charles L. Bennett, the WMAP science team has determined, to a high degree of accuracy and precision, not only the age of the universe, but also the density of atoms; the density of all other non-atomic matter; the epoch when the first stars started to shine; the "lumpiness" of the universe, and how that "lumpiness" depends on scale size.

Are we closing in on dark matter?
As the search for dark matter intensifies, the Kavli Institute for Cosmological Physics at the University of Chicago and the National Academy of Sciences organized a colloquium that brings together cosmologists, particle physicists and observational astrophysicists � three fields now united in the hunt to determine what is dark matter.

Researchers debunk the IQ myth
After conducting the largest online intelligence study on record, a Western University-led research team has concluded that the notion of measuring one's intelligence quotient or IQ by a singular, standardized test is highly misleading.

Entrepreneur receives funding for 'tornado' power generator
(Phys.org)�Electrical engineer and entrepreneur Louis Michaud's AVEtec company has received funding from PayPal cofounder Peter Thiel's Breakout Labs program to build an experimental Atmosphere Vortex Engine (AVE). The $300,000 in startup funds is to go towards building a working engine to dispel or prove the viability of using such technology to produce electricity with virtually no carbon footprint.

The 500 phases of matter: Entering a new phase
(Phys.org)�Forget solid, liquid, and gas: there are in fact more than 500 phases of matter. In a major paper in today's issue of Science, Perimeter Faculty member Xiao-Gang Wen reveals a modern reclassification of all of them. Using modern mathematics, Wen and collaborators reveal a new system which can, at last, successfully classify symmetry-protected phases of matter. Their new classification system will provide insight about these quantum phases of matter, which may in turn increase our ability to design states of matter for use in superconductors or quantum computers. This paper, titled, "Symmetry-Protected Topological Orders in Interacting Bosonic Systems," is a revealing look at the intricate and fascinating world of quantum entanglement, and an important step toward a modern reclassification of all phases of matter.

New kind of magnetism discovered: Experiments demonstrate 'quantum spin liquid'
Following up on earlier theoretical predictions, MIT researchers have now demonstrated experimentally the existence of a fundamentally new kind of magnetic behavior, adding to the two previously known states of magnetism.

Award-winning A/C uses old idea, new materials
If thirst is crucial to knowledge, then one crucial step in the evolution of air conditioning was born in the 1970s, when Ron Judkoff was a hot, thirsty Peace Corp volunteer in Kedougou, Senegal, one of the warmest places on Earth.

From super to ultra: Just how big can black holes get?
(Phys.org)�Some of the biggest black holes in the Universe may actually be even bigger than previously thought, according to a study using data from NASA's Chandra X-ray Observatory.

Pocket test measures 50 things in a drop of blood
(Phys.org)�A new device about the size of a business card could allow health care providers to test for insulin and other blood proteins, cholesterol, and even signs of viral or bacterial infection all at the same time�with one drop of blood. Preliminary tests of the V-chip, created by scientists at The Methodist Hospital Research Institute and MD Anderson Cancer Center, were published last night by Nature Communications.

Hot electrons do the impossible in catalytic chemistry
(Phys.org)�From petroleum refining to food processing, the vast majority of commercial chemical applications involve catalysts to control the rate of chemical reactions. Anything that can increase the efficiency of catalysts could have a widespread impact in these areas. In a new study, scientists have shown that an efficiency improvement may be possible by creating "hot" electrons (those with a very high energy) from a metallic surface on which the chemical reaction occurs, and using the electrons to control the chemical reaction and make it more efficient.

For newly discovered 'quantum spin liquid', the beauty is in its simplicity
(Phys.org)�A research team including scientists from the National Institute of Standards and Technology (NIST) has confirmed long-standing suspicions among physicists that electrons in a crystalline structure called a kagome (kah-go-may) lattice can form a "spin liquid," a novel quantum state of matter in which the electrons' magnetic orientation remains in a constant state of change.

America's top young scientist crafts system to purify water (w/ video)
(Phys.org)�Deepika Kurup, a 14-year-old high school student from Nashua, New Hampshire, has won this year's Discovery Education 3M Young Scientist Challenge for her solar-powered device designed to kill bacteria in water. She now has the title of "America's Top Young Scientist," and a reward of $25,000 for her work. for students in fifth to eighth grade. Kurup entered the prestigious-science competition before she was in high school. This was her second time entering; in an another year's competition she had taken first place in her state.

Legged Squad Support System (LS3): DARPA's four-legged robot with voice recognition (video)
(Phys.org)�Today's dismounted warfighter can be saddled with more than 100 pounds of gear, resulting in physical strain, fatigue and degraded performance. Reducing the load on dismounted warfighters has become a major point of emphasis for defense research and development, because the increasing weight of individual equipment has a negative impact on warfighter readiness. The Army has identified physical overburden as one of its top five science and technology challenges. To help alleviate physical weight on troops, DARPA is developing a four-legged robot, the Legged Squad Support System (LS3), to integrate with a squad of Marines or Soldiers.

Researchers find a 'glitch' in pulsar 'glitch' theory
(Phys.org)�Researchers from the University of Southampton have called in to question a 40 year-old theory explaining the periodic speeding up or 'glitching' of pulsars.

Metamaterials experts show a way to reduce electrons' effective mass to nearly zero
The field of metamaterials involves augmenting materials with specially designed patterns, enabling those materials to manipulate electromagnetic waves and fields in previously impossible ways. Now, researchers from the University of Pennsylvania have come up with a theory for moving this phenomenon onto the quantum scale, laying out blueprints for materials where electrons have nearly zero effective mass.

Super-fine sound beam could one day be an invisible scalpel
A carbon-nanotube-coated lens that converts light to sound can focus high-pressure sound waves to finer points than ever before. The University of Michigan engineering researchers who developed the new therapeutic ultrasound approach say it could lead to an invisible knife for noninvasive surgery.


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