Monday, December 17, 2012

Phys.Org Newsletter Week 50

Dear Reader ,

Here is your customized Phys.org Newsletter for week 50:

New knowledge about the remarkable properties of black holes
Black holes are surrounded by many mysteries, but now researchers from the Niels Bohr Institute, among others, have come up with new groundbreaking theories that can explain several of their properties. The research shows that black holes have properties that resemble the dynamics of both solids and liquids. The results are published in the prestigious scientific journal, Physical Review Letters.

Duo create GravityLight: Lamp that runs off of gravity (w/ video)
(Phys.org)�London based designers Martin Riddiford and Jim Reeves have created what they are calling the GravityLight, an LED lamp that runs off of nothing but gravity. The purpose of the lamp is to provide people in third world countries with an alternative to kerosene lamps which cause burns and lung ailments to millions of people too poor to afford any other source of light.

12 matter particles suffice in nature
How many matter particles exist in nature? Particle physicists have been dealing with this question for a long time. The 12 matter particles contained in the standard model of particle physics? Or are there further particles with too high a mass to be produced by the experiments performed so far? These questions are now answered by researchers of KIT, CERN, and Humboldt University in the current issue of the Physical Review Letters.

Engineers make tiny, low-cost, terahertz imager chip
(Phys.org)�A secret agent is racing against time. He knows a bomb is nearby. He rounds a corner, spots a pile of suspicious boxes in the alleyway, and pulls out his cell phone. As he scans it over the packages, their contents appear onscreen. In the nick of time, his handy smartphone application reveals an explosive device, and the agent saves the day.�

Do we live in a computer simulation? Researchers say idea can be tested
A decade ago, a British philosopher put forth the notion that the universe we live in might in fact be a computer simulation run by our descendants. While that seems far-fetched, perhaps even incomprehensible, a team of physicists at the University of Washington has come up with a potential test to see if the idea holds water.

Was life inevitable? New paper pieces together metabolism's beginnings
(Phys.org)�Describing how living organisms emerged from Earth's abiotic chemistry has remained a conundrum for scientists, in part because any credible explanation for such a complex process must draw from fields spanning the reaches of science.

Research pair finds global warming matched predictions from 1990
(Phys.org)�A pair of researchers has found that an estimate made in 1990 by a team of global scientists regarding how much temperatures would rise due to increasing amounts of carbon dioxide in the atmosphere, is very close to what actually happened. The two, David Frame, of New Zealand's Victoria University and Daithi Stone, of Lawrence Berkeley National Laboratory, have published their findings in Nature Climate Change.

Researcher finds hint of dark energy discussion in letters between Einstein and Schrodinger
(Phys.org)�Alex Harvey, a physics professor at the City University of New York has uploaded a paper to the preprint server arXiv, in which he claims Albert Einstein and Erwin Schr�dinger were writing letters back and forth to one another in a way that indicated that that the two were on the precipice of discussing the possibility of the existence of dark energy.

Engineers develop new magnetoelectric computer memory
(Phys.org)�By using electric voltage instead of a flowing electric current, researchers from UCLA's Henry Samueli School of Engineering and Applied Science have made major improvements to an ultra-fast, high-capacity class of computer memory known as magnetoresistive random access memory, or MRAM.

Linux and Intel 386 processors will part ways
(Phys.org)�Earlier this week Linus Torvalds took away support for 386 CPUs from the Linux kernel. He agreed with the position of Red Hat engineer and Linux kernel developer Ingo Molnar to drop support for Intel's old 386 microprocessors. For Linux users, the world is not coming to a halt. All it means is that the 386 DX33 chip will not be able to run in future versions of Linux, just in existing versions of the kernel. Intel 386-DX owners, for whatever hobbyist or other reasons, will not be able to enjoy the new Linux versions starting with 3.8. Moln�r explained that the extra work involved in continuing support was greater than the returns in benefits.

Japanese researchers build robot with most humanlike muscle-skeleton structure yet (w/ video)
(Phys.org)�Researchers at the University of Tokyo have taken another step towards creating a robot with a faithfully recreated human skeleton and muscle structure. Called Kenshiro, the robot has been demonstrated at the recent Humanoids 2012 conference in Osaka, Japan.

Cassini spots mini Nile River on Saturn moon Titan
(Phys.org)�The international Cassini mission has spotted what appears to be a miniature extraterrestrial version of the Nile River: a river valley on Saturn's moon Titan that stretches more than 400 km from its 'headwaters' to a large sea.

Astronomers discover galaxies near cosmic dawn (Update)
(Phys.org)�A team of astronomers led by the California Institute of Technology (Caltech) has used NASA's Hubble Space Telescope to discover seven of the most primitive and distant galaxies ever seen.

Higgs Boson makes it a champagne year for physics
2012 will go down in history as a landmark year, when physicists discovered a fundamental particle that may answer one of the greatest riddles of all.

Wind, solar power paired with storage could be cost-effective way to power grid
(Phys.org)�Renewable energy could fully power a large electric grid 99.9 percent of the time by 2030 at costs comparable to today's electricity expenses, according to new research by the University of Delaware and Delaware Technical Community College.

Extending Einstein: Researchers demonstrate a new kind of quantum entanglement
Physicists at the University of Calgary and at the Institute for Quantum Computing in Waterloo have published new research in Nature Physics which builds on the original ideas of Einstein and adds a new ingredient: a third entangled particle.

Hedge funds manipulate stock prices, new research shows
(Phys.org)�Some hedge funds manipulate stock prices at the end of the month to improve the returns that they report to their investors, a new study suggests.

Silicon nanophotonics: Using light signals to transmit data
(Phys.org)�IBM announced today a major advance in the ability to use light instead of electrical signals to transmit information for future computing. The breakthrough technology � called "silicon nanophotonics" � allows the integration of different optical components side-by-side with electrical circuits on a single silicon chip using, for the first time, sub-100nm semiconductor technology.

Alan Alda asks scientists to explain: What's time?
(AP)�Professor Alan Alda has a homework assignment for scientists. Yes, that Alan Alda.

Is the pixel about to die?
(Phys.org)�Researchers launching a new vector-based video codec are claiming their work will lead to the death of the pixel within the next five years.


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