Keyword: stringtheory
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At 12-years-old, Jacob Barnett is a genius. He’s already in college, his IQ is higher than Einstein’s, and for fun he‘s working on an expanded version of that man’s theory of relativity. So far, the signs are good. Professors are astounded. So what else does a boy genius with vast brilliance do in his free time? Disprove the big bang, of course. Original Story is below: http://www.indystar.com/apps/pbcs.dll/article?AID=2011103200369 When Jacob Barnett first learned about the Schrödinger equation for quantum mechanics, he could hardly contain himself. For three straight days, his little brain buzzed with mathematical functions. From within his 12-year-old, mildly...
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When fresh water rivers flow into the sea the concentration difference leads to a change in entropy. US researchers have developed a battery that generates power from that entropy difference.Yi Cui's team at Stanford University, California, extract energy with 74 per cent efficiency using manganese dioxide nanorods and silver electrodes1. 'What we have really demonstrated that this idea can work,' says Cui.Cui's team estimate that if the technology was used on all world's rivers this renewable energy technology would hypothetically generate 2 TW, or approximately 13 per cent of current global consumption.Entropy based power generation has been done before but is most reliably done today...
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(PhysOrg.com) -- Scientists from the U.S. Department of Energy's Lawrence Berkeley National Laboratory (Berkeley Lab) and the University of California at Berkeley have joined with researchers at Stanford University and the SLAC National Accelerator Laboratory to mount a three-pronged attack on one of the most obstinate puzzles in materials sciences: what is the pseudogap?A collaboration organized by Zhi-Xun Shen, a member of the Stanford Institute for Materials and Energy Science (SIMES) at SLAC and a professor of physics at Stanford University, used three complementary experimental approaches to investigate a single material, the high-temperature superconductor Pb-Bi2201 (lead bismuth strontium lanthanum copper-oxide)....
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The theory that our sense of smell has its basis in quantum physics events is gaining traction, say researchers.The idea remains controversial, but scientists reporting at the American Physical Society meeting in Dallas, US, are slowly unpicking how it could work. The key, they say, is tiny packets of energy, or quanta, lost by electrons. Experiments using tiny wires show that as electrons move on proteins within the nose, odor molecules could absorb these quanta and thereby be detected. If the theory is right, by extending these studies, an "electronic nose" superior to any chemical sensor could be devised. >...
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Today, looking out across a seemingly boundless cosmos filled with an unimaginable variety of exotic objects, it's easy to forget that the Universe we currently admire is the product of a violent event that occurred 13.75 billion years ago. As we know, the leading theory for universal birth is the Big Bang, where everything came from nothing, in a single energetic burst of inexplicable creation. So, if we turn back the clock back 13.75 billion years, what would we see? My instinct would be to say "energy, the Universe was filled with pure, violent energy," but according to some mind-bending...
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It's long been the stuff of science fiction fantasy but time travel could be a real possibility say scientists. Furthermore, they believe the 17-mile-long Large Hadron Collider (LHC) based underground near Geneva holds the key. The theory is that the world’s biggest atom smasher might be able to unleash the Higgs singlet - a particle that could appear before the collision that produced it. The mind-boggling theory is that it will have entered from another dimension. There are a few obstacles in the way, however. Read more: http://www.dailymail.co.uk/sciencetech/article-1368107/Is-Large-Hadron-Collider-world-s-time-machine.html#ixzz1HBpAEy8S
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Several speculative theories in physics involve extra dimensions beyond our well-known four (which are broken down into three dimensions of space and one of time). Some theories have suggested 5, 10, 26, or more, with the extra spatial dimensions "hiding" within our observable three dimensions. One thing that all of these extra dimensions have in common is that none has ever been experimentally detected; they are all mathematical predictions. More recently, physicists have been theorizing the possibility of lower dimensionality, in which the universe has only two or even one spatial dimension(s), along with one dimension of time. The theories...
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(PhysOrg.com) -- Berkeley researchers find enhanced and controllable magnetization in unique bismuth ferrite films. "The nation that controls magnetism will control the universe," famed fictional detective Dick Tracy predicted back in 1935. Probably an overstatement, but there's little doubt the nation that leads the development of advanced magnetoelectronic or "spintronic" devices is going to have a serious leg-up on its Information Age competition. A smaller, faster and cheaper way to store and transfer information is the spintronic grand prize and a key to winning this prize is understanding and controlling a multiferroic property known as "spontaneous magnetization." Now, researchers with...
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Physicists at UCLA set out to design a better transistor and ended up discovering a new way to think about the structure of space. Space is usually considered infinitely divisible — given any two positions, there is always a position halfway between. But in a recent study aimed at developing ultra-fast transistors using graphene, researchers from the UCLA Department of Physics and Astronomy and the California NanoSystems Institute show that dividing space into discrete locations, like a chessboard, may explain how point-like electrons, which have no finite radius, manage to carry their intrinsic angular momentum, or "spin." While studying graphene's...
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SALMON, Idaho (Reuters) – Underground quartz deposits worldwide may be behind earthquakes, mountain building and other continental tectonics, a discovery that may aid in predicting tremblers, according to a study released on Wednesday. The findings by Utah State University geophysicist Anthony Lowry and a colleague at the University of London, to be published Thursday in the journal Nature, may solve a riddle of the ages about the formation and location of earthquake faults, mountains, valleys and plains. "Certainly the question of why mountains occur where they do has been around since the dawn of time," Lowry told Reuters. He and...
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If the latest theory of Tom Weiler and Chui Man Ho is right, the Large Hadron Collider – the world’s largest atom smasher that started regular operation last year – could be the first machine capable of causing matter to travel backwards in time. “Our theory is a long shot,” admitted Weiler, who is a physics professor at Vanderbilt University, “but it doesn’t violate any laws of physics or experimental constraints.” One of the major goals of the collider is to find the elusive Higgs boson: the particle that physicists invoke to explain why particles like protons, neutrons and electrons...
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New brain imaging study reveals the structures that support color synesthesiaMilan, Italy, 9 March 2011 – The Nobel prize-winning physicist Richard Feynman once wrote in his autobiographical book (What do you care what other people think?): "When I see equations, I see letters in colors - I don't know why […] And I wonder what the hell it must look like to the students." This neurological phenomenon is known to psychologists as synaesthesia and Feynman's experience of "seeing" the letters in colour was a specific form known today as "grapheme-colour" synaesthesia. What is perhaps most puzzling about this condition is...
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The website Cold Fusion Now is reporting about a recent interview conducted by James Martinez with physicist and researcher, Dr. Edmund Storms, formerly of the Los Alamos National Laboratory who is commenting on Andrea Rossi’s cold fusion technology. He has recently returned from the ICCF-16 conference in India where researchers in the field of low energy nuclear reaction discuss the latest research in the field. Storms makes some interesting statements on the importance of Rossi’s technology, and is of the belief that it is a significant breakthrough which can have far reaching effects in the world of energy production. Here...
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UK researchers have demonstrated the highest-resolution optical microscope ever - aided by tiny glass beads. The microscope imaged objects down to just 50 billionths of a metre to yield a never-before-seen, direct glimpse into the "nanoscopic" world. The team says the method could even be used to view individual viruses. Their technique, reported in Nature Communications, makes use of "evanescent waves", emitted very near an object and usually lost altogether. Instead, the beads gather the light and re-focus it, channelling it into a standard microscope. This allowed researchers to see with their own eyes a level of detail that is...
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SALMON, Idaho (Reuters) – A trio of top solar scientists said on Wednesday they had solved the mystery behind the disappearance of sunspots, a phenomenon that has stumped astrophysicists worldwide for more than two centuries. The research, which will be published on Thursday in the journal Nature, shows that unusually weak magnetic fields on the sun paired with reduced solar activity cause sunspots to disappear. Sunspots appear to the human eye as dark spots on the sun, some as wide as 49,000 miles, according to NASA. They are caused by intense magnetic activity, or storms, on the sun's surface, which...
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14 January 2004--In the 15 January 2004 issue of the journal Nature, two physicists from Penn State University will announce their discovery of a new phase of matter, a "supersolid" form of helium-4 with the extraordinary frictionless-flow properties of a superfluid. "We discovered that solid helium-4 appears to behave like a superfluid when it is so cold that the laws of quantum mechanics govern its behavior," says Moses H. W. Chan, Evan Pugh Professor of Physics at Penn State. "We apparently have observed, for the first time, a solid material with the characteristics of a superfluid." "The possible discovery of...
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Superfluids are strange states of matter, typically forming at very low and very high temperatures, exhibiting gonzo properties like a seemingly gravity-defying tendency to climb up the walls of containers and friction-free superconductivity. That is, they are perfect conductors that don't lose energy during transmission. And the fact that they appear to exist at the center of neutron stars tells scientists a lot about nuclear interactions in high-density matter and the life-cycles of neutron stars. The pressure within neutron stars is so intense that in the stars' cores, charged particles merge, resulting in a star mostly consisting of neutrons (hence...
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(PhysOrg.com) -- Wormholes are one of the stranger objects that arise in general relativity. Although no experimental evidence for wormholes exists, scientists predict that they would appear to serve as shortcuts between one point of spacetime and another. Scientists usually imagine wormholes connecting regions of empty space, but now a new study suggests that wormholes might exist between distant stars. Instead of being empty tunnels, these wormholes would contain a perfect fluid that flows back and forth between the two stars, possibly giving them a detectable signature. The scientists, Vladimir Dzhunushaliev at the Eurasian National University in Kazakhstan and coauthors,...
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The 2009 indie film Moon features Sam Rockwell as an employee (named Sam) of the fictional Lunar Industries, a mining corporation back on Earth. Just wrapping a three-year solitary stint on the moon, Sam is charged with overseeing the automated harvesters which extract helium-3 from the lunar regolith. Canisters of the harvested helium-3 are then sent to Earth to be used to generate fusion energy.
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In research appearing in today’s issue of the journal Nature Nanotechnology, Nongjian “NJ” Tao, a researcher at the Biodesign Institute at Arizona State University, has demonstrated a clever way of controlling electrical conductance of a single molecule, by exploiting the molecule’s mechanical properties. Such control may eventually play a role in the design of ultra-tiny electrical gadgets, created to perform myriad useful tasks, from biological and chemical sensing to improving telecommunications and computer memory. Tao leads a research team used to dealing with the challenges entailed in creating electrical devices of this size, where quirky effects of the quantum world...
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