Keyword: stringtheory
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First, they teleported photons, then atoms and ions. Now one physicist has worked out how to do it with energy, a technique that has profound implications for the future of physics.
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Princeton engineers have made a breakthrough in an 80-year-old quandary in quantum physics, paving the way for the development of new materials that could make electronic devices smaller and cars more energy efficient. By reworking a theory first proposed by physicists in the 1920s, the researchers discovered a new way to predict important characteristics of a new material before it's been created. The new formula allows computers to model the properties of a material up to 100,000 times faster than previously possible and vastly expands the range of properties scientists can study. "The equation scientists were using before was inefficient...
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Prior to the December shutdown, the Large Hadron Collider had set a new world record in high-energy physics by accelerating two beams of proton particles to 1.8 tera (trillion) electron volts (TeV) each and smashing them together, for a combined collision energy of 2.36 TeV... The current schedule calls for operating the machine at a level that would result in collisions with the energy of 7 TeV (3.5 TeV per beam) until late 2011 or early 2012. The Large Hadron Collider will then be shut down once again so superconducting hardware can be upgraded to support collisions of 14 TeV...
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How do you go about pushing the frontiers of propulsion science? Tau Zero Foundation founder Marc Millis discussed the question in a just published interview with h+ Magazine. One aspect of the question is to recognize where we are today. Millis is on record as saying that it may be two to four centuries before we’re ready to launch an Alpha Centauri mission. Why the delay? The problem is not so much high-tech savvy as it is available energy, and Millis evaluates it by comparing the energy we use for rocketry today vs. the entire Earth’s consumption of energy.
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Physicists said Monday that they had whacked a tiny region of space with enough energy to briefly distort the laws of physics, providing the first laboratory demonstration of the kind of process that scientists suspect has shaped cosmic history. The blow was delivered in the Relativistic Heavy Ion Collider, or RHIC, at the Brookhaven National Laboratory on Long Island, where, since 2000, physicists have been accelerating gold nuclei around a 2.4-mile underground ring to 99.995 percent of the speed of light and then colliding them in an effort to melt protons and neutrons and free their constituents — quarks and...
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CHICAGO (AFP) – Astronomers who have long used supernovas as cosmic mile markers to help measure the expansion of the universe now have an answer to the nagging question of what sparks the massive stellar explosions. "These are such critical objects in understanding the universe," lead author Marat Gilfanov of the Max Planck Institute for Astrophysics in Germany said Wednesday in describing his team's study. "It was a major embarrassment that we did not know how they worked. Now we are beginning to understand what lights the fuse of these explosions." Most scientists say Type 1a supernovae are formed when...
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Science fiction writers may have to rethink how their starship crews survive travel near or beyond the speed of light. Even the occasional hydrogen atom floating in the interstellar void would become a lethal radiation beam that would kill human crews in mere seconds and destroy a spacecraft's electronics, New Scientist reports. Just a few stray wisps of hydrogen gas -- fewer than two hydrogen atoms per cubic centimeter on average -- would translate into 7 teraelectron volts for a starship crew traveling at 99.999998 percent of the speed of light. That's as much fun for humans as standing in...
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WASHINGTON (Reuters) – Scientists have created the hottest temperature ever in the lab -- 4 trillion degrees Celsius -- hot enough to break matter down into the kind of soup that existed microseconds after the birth of the universe. They used a giant atom smasher at the U.S. Department of Energy's Brookhaven National Laboratory in New York to knock gold ions together to make the ultra-hot explosions -- which lasted only for milliseconds. But that is enough to give physicists fodder for years of study that they hope will help them understand why and how the universe formed. "That temperature...
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Atom smashers at a U.S. national lab have produced temperatures not seen since the Big Bang — 7.2 trillion degrees, or 250,000 times hotter than the sun's interior — in work re-creating the universe's first microseconds. The results come from the 2.4-mile-wide Relativistic Heavy Ion Collider at the Department of Energy's Brookhaven (N.Y.) National Laboratory. Since 2000, scientists there have hurtled gold atoms together at nearly the speed of light. These smash-ups heat bubbles smaller than the center of an atom to about 40 times hotter than the center of an imploding supernova. Scientists say the results have given them...
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Protons, neutrons melt to produce 'quark-gluon plasma' at RHICUPTON, NY — Recent analyses from the [http://www.bnl.gov/rhic/] Relativistic Heavy Ion Collider (RHIC), a 2.4-mile-circumference "atom smasher" at the U.S. Department of Energy's (DOE) Brookhaven National Laboratory, establish that collisions of gold ions traveling at nearly the speed of light have created matter at a temperature of about 4 trillion degrees Celsius — the hottest temperature ever reached in a laboratory, about 250,000 times hotter than the center of the Sun. This temperature, based upon measurements by the PHENIX collaboration at RHIC, is higher than the temperature needed to melt protons and...
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University of Calgary researchers use quantum entanglement to stack light particlesWhile many of us enjoyed constructing little houses out of toy bricks when we were kids, this task is much more difficult if bricks are elementary particles. It is even harder if these are particles of light – photons, which can only exist while flying at an incredible speed and vanish if they touch anything. A team at the University of Calgary has accomplished exactly that: by manipulating a mysterious quantum property of light known as entanglement, they are able to mount up to two photons on top of one...
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According to the Washington Post, David Axelrod, Barack Obama’s senior advisor, said that the president worked with “[Harvard professor] Laurence Tribe on a paper on the legal implications of Einstein’s theory of relativity.” I’ve read that paper, “The Curvature of Constitutional Space.” It’s complete nonsense.
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Scientists Claim To Tap The Free Energy Of Space by Richard Walters ("For the People" magazine) Physicist Bruce DePalma has a 100 kilowatt generator, which he invented, sitting in his garage. It could power his whole house, but if he turns it on, the government may confiscate it. Harvard educated DePalma, who taught physics at the Massachusetts Institute of Technology for 15 years, claims that his electrical generator can provide cheap, inexhaustible, self sustaining and non polluting source of energy, using principles that flout conventional physics and are still not fully understood. His N machine, as it is called, is...
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By Paul Recer AP Science Writer Wednesday, April 24, 2002; 4:21 PM WASHINGTON –– The universe is about 13 billion years old, slightly younger than previously believed, according to a study that measured the cooling of the embers in ancient dying stars.Experts said the finding gives "very comparable results" to an earlier study that used a different method to conclude that the universe burst into existence with the theoretical "Big Bang" between 13 and 14 billion years ago.Harvey B. Richer, an astronomer at the University of British Columbia, said the Hubble Space Telescope gathered images of the faintest dying...
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Initial results from high-energy proton collisions at the Large Hadron Collider offer first glimpse of physics at new energy frontier.In December, the Large Hadron Collider, the world’s largest particle accelerator, shattered the world record for highest energy particle collisions. This week, team led by researchers from MIT, CERN and the KFKI Research Institute for Particle and Nuclear Physics in Budapest, Hungary, completed work on the first scientific paper analyzing the results of those collisions. Its findings show that the collisions produced an unexpectedly high number of particles called mesons — a factor that will have to be taken into account...
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A major hurdle in the ambitious quest to design and construct a radically new kind of quantum computer has been finding a way to manipulate the single electrons that very likely will constitute the new machines' processing components or "qubits." Princeton University's Jason Petta has discovered how to do just that -- demonstrating a method that alters the properties of a lone electron without disturbing the trillions of electrons in its immediate surroundings. The feat is essential to the development of future varieties of superfast computers with near-limitless capacities for data. Petta, an assistant professor of physics, has fashioned a...
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Cygnus bubble detail_4m Mayall NOAO (1) Is the solar-system sized bubble in the Consellation Cygnus a planetary nebulae or could it be an "AC" or astroengineering construction, also known as a Dyson sphere, named after Freeman Dyson of the Princeton Institute for Advanced Study who proposed the theory? Dyson's thought experiment suggested that in our search for advanced extraterrrestrial civilizations that Instead of radio signals we should look for spheres, which are artificial mega structures that enclose the orbit of a star, fabricated from the material of that solar system. The key is to distinguish a Dyson sphere from...
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As every schoolchild knows, water freezes at 0oC. Or perhaps not. It has been known for centuries that pure water, in the absence of any nucleating surface, can remain in a supercooled liquid state down to temperatures as low as -40oC. Now, researchers in Israel have discovered that supercooled water itself will freeze at different temperatures depending on whether it is in contact with a positively or negatively charged surface. Ice crystals © Thinkstock Images For more than 150 years it has been known that electrical fields can affect the freezing point of supercooled water. However, it has been difficult to study...
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Art Bell is joined by physicist David Anderson, who'll discuss the history of time travel, and the status of time technology from research labs around the world, as well as the moral and ethical implications of this technology. Anderson is the President and CEO of Anderson Multinational LLC, the parent corporation of the Anderson Institute and several other companies, headquartered in Rochester, New York. He holds multiple patents relating to time technology and also for time reactor designs. His published works include more than thirty articles and video lectures on spacetime physics, time control technologies and methods and the philosophy...
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H. G. Wells lives today in the person of David Lewis Anderson, PhD. Over a hundred years ago, the proto-science fiction work, "The Time Machine" explored heady subjects of Time travel, post Armageddon societies, and evolutionary genetics when applied along class lines. A more fanciful yet forward thinking and eloquent novel could not be imagined at the time, turn of the Century late Victorian England. Yet science fictions have become reality so often, that to even question the premise is now laughable....
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