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Keyword: stringtheory

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  • 2008 Physics Nobel Prize Honors American and Japanese Particle Theorists

    10/08/2008 9:00:41 PM PDT · by neverdem · 4 replies · 215+ views
    ScienceNOW Daily News ^ | 7 October 2008 | Adrian Cho
    Enlarge ImageBreaking their way. Makoto Kobayashi (left), Toshihide Maskawa (center), and Yoichiro Nambu share the prize for work on two different aspects of "broken symmetry."Credit: KYODO/Reuters This year's Nobel Prize in physics honors three particle theorist of Japanese origin, one for pioneering the use of a key conceptual tool and the other two for making, in essence, an inspired educated guess that expanded the family of fundamental subatomic particles. Yoichiro Nambu, 87, of the University of Chicago in Illinois receives half the $1.4 million prize for, in the early 1960s, applying to particle physics the concept of spontaneous symmetry...
  • Do We Live in a Giant Cosmic Bubble?

    09/30/2008 3:23:48 PM PDT · by decimon · 35 replies · 524+ views
    SPACE.com ^ | Sep 30, 2008 | Clara Moskowitz
    If the notion of dark energy sounds improbable, get ready for an even more outlandish suggestion. Earth may be trapped in an abnormal bubble of space-time that is particularly void of matter. Scientists say this condition could account for the apparent acceleration of the universe's expansion, for which dark energy currently is the leading explanation.
  • 'Doomsday Machine' Lawsuit Tossed Out by Judge

    09/29/2008 10:14:51 AM PDT · by cups · 14 replies · 222+ views
    HONOLULU — A federal judge in Hawaii has dismissed a lawsuit trying to stop the world's largest atom smasher. U.S. District Court Judge Helen Gilmor ruled Friday that federal courts don't have jurisdiction over the Large Hadron Collider in Europe, near Geneva. Two Hawaii residents sued because they feared that the machine could create small black holes or other phenomena that could destroy the planet.
  • New findings reveal that the shape of the Universe is a Dodecahedron based on Phi

    09/28/2008 12:26:40 PM PDT · by LibWhacker · 52 replies · 750+ views
    The standard model of cosmology predicts that the universe is infinite and flat. However, cosmologists in France and the US are now suggesting that space could be finite and shaped like a dodecahedron instead. They claim that a universe with the same shape as the twelve-sided polygon can explain measurements of the cosmic microwave background – the radiation left over from the big bang – that spaces with more mundane shapes cannot.Power spectrum of the cosmic microwave background (CMB) radiation. Data from WMAP have extended the accuracy of the spectrum far beyond what was known from earlier measurements. This plot...
  • Tsunami invisibility cloak, dark energy v. the void, sorting nanotubes with light, and more

    09/26/2008 4:30:39 AM PDT · by decimon · 12 replies · 269+ views
    American Physical Society ^ | Sep 26, 2008 | Unknown
    Tsunami invisibility cloak, dark energy v. the void, sorting nanotubes with light, and moreNews from the American Physical SocietyTsunami Invisibility Cloak M. Farhat, S. Enoch, S. Guenneau and A.B. Movchan Physical Review Letters (forthcoming) Rather than building stronger ocean-based structures to withstand tsunamis, it might be easier to simply make the structures disappear. A collaboration of physicists from the Centre National de la Recherche Scientifique (CNRS) and Aix-Marseille Universite in France and the University of Liverpool in England have conducted laboratory experiments showing that it's possible to make type of dike that acts as an invisibility cloak that hides off-shore...
  • Mysterious New 'Dark Flow' Discovered in Space

    09/25/2008 8:58:58 AM PDT · by nobama08 · 18 replies · 530+ views
    foxnews.com ^ | Thursday, September 25, 2008 | Clara Moskowitz
    As if the mysteries of dark matter and dark energy weren't vexing enough, another baffling cosmic puzzle has been discovered. Patches of matter in the universe seem to be moving at very high speeds and in a uniform direction that can't be explained by any of the known gravitational forces in the observable universe. Astronomers are calling the phenomenon "dark flow." The stuff that's pulling this matter must be outside the observable universe, researchers conclude.
  • Chinese Create First Warp Drive_(space military application)

    09/24/2008 6:17:27 PM PDT · by Flavius · 27 replies · 987+ views
    io9 ^ | 9/25/08 | io9
    military application electromagnetic drive in space
  • Chinese Say They're Building 'Impossible' Space Drive

    09/24/2008 9:44:37 AM PDT · by Fractal Trader · 36 replies · 971+ views
    Wired | 24 Sep 2008
    (wired) Link Only: http://blog.wired.com/defense/2008/09/chinese-buildin.html
  • Mysterious New 'Dark Flow' Discovered in Space

    09/23/2008 4:46:02 PM PDT · by NormsRevenge · 37 replies · 53+ views
    Space.com on Yahoo ^ | 9/23/08 | Clara Moskowitz
    As if the mysteries of dark matter and dark energy weren't vexing enough, another baffling cosmic puzzle has been discovered. Patches of matter in the universe seem to be moving at very high speeds and in a uniform direction that can't be explained by any of the known gravitational forces in the observable universe. Astronomers are calling the phenomenon "dark flow." The stuff that's pulling this matter must be outside the observable universe, researchers conclude. When scientists talk about the observable universe, they don't just mean as far out as the eye, or even the most powerful telescope, can see....
  • Hadron Collider forced to halt

    09/20/2008 5:31:24 AM PDT · by chessplayer · 26 replies · 36+ views
    "Plans to begin smashing particles at the Large Hadron Collider (LHC) may be delayed after a magnet failure forced engineers to halt work." "The failure, known as a quench, caused around 100 of the LHC's super-cooled magnets to heat up by as much as 100C." "The fire brigade were called out after a tonne of liquid helium leaked into the tunnel at Cern, near Geneva." "The LHC beam will remain turned off over the weekend while engineers investigate the severity of the fault."
  • Hubble Finds a Mystery Object (something that astronomers cannot make any sense of)

    09/15/2008 11:47:36 AM PDT · by LibWhacker · 142 replies · 126+ views
    Don't get the idea that we've found every kind of astronomical object there is in the universe. In a paper to appear in the Astrophysical Journal, astronomers working on the Supernova Cosmology Project report finding a new kind of something that they cannot make any sense of. Now you don't see it, now you do. Something in Bootes truly in the middle of nowhere — apparently not even in a galaxy — brightened by at least 120 times during more than three months and then faded away. Its spectrum was like nothing ever seen, write the discoverers, with "five broad...
  • Black Hole's 'Birth Scream' Heard Across Universe

    09/13/2008 9:25:42 AM PDT · by nobama08 · 12 replies · 14+ views
    foxnews.com ^ | Friday, September 12, 2008 | Andrea Thompson
    Six months ago, satellite telescopes spotted an exceptionally bright burst of energy that would have been the most distant object in the universe ever visible to the naked eye, if anyone had noticed it. Even though no humans have reported seeing it directly, the gamma-ray burst, an explosion that signals the violent death of a massive star, is changing theories of how these events look. Gamma-ray bursts are typically accompanied by intense releases of other forms of radiation, from X-rays to visible light. This burst, dubbed GRB 080319B, was first detected by the Swift satellite on March 19, while the...
  • The Origins of the Universe: A Crash Course

    09/12/2008 10:07:14 PM PDT · by neverdem · 32 replies · 49+ views
    NY Times ^ | September 12, 2008 | BRIAN GREENE
    THREE hundred feet below the outskirts of Geneva lies part of a 17-mile-long tubular track, circling its way across the French border and back again, whose interior is so pristine and whose nearly 10,000 surrounding magnets so frigid, that it’s one of the emptiest and coldest regions of space in the solar system. The track is part of the Large Hadron Collider, a technological marvel built by physicists and engineers, and described alternatively as heralding the next revolution in our understanding of the universe or, less felicitously, as a doomsday machine that may destroy the planet. After more than a...
  • 5 Things You Need to Know About the Large Hadron Collider Now

    09/10/2008 5:13:56 AM PDT · by yankeedame · 42 replies · 228+ views
    Popular Mechancis ^ | September 10, 2008 | Erik Sofge
    5 Things You Need to Know About the Large Hadron Collider Now Study up with new mysteries from the celebrity particle collider before it doesn't destroy the world on Wednesday, then talk physics with the interactive chat widget below—and stay tuned for on-the-scene reporting in the morning! A a large dipole magnet is lowered into the tunnel to complete the basic installation of the more than 1700 magnets that make up the Large Hadron Collider (LHC), which measures 27 km in circumference. The largest particle accelerator in history will take another step on Wednesday toward living up to its own...
  • Gamma-Ray Burst Aimed Directly at Earth

    09/10/2008 4:42:43 PM PDT · by LibWhacker · 50 replies · 38+ views
    A massive gamma-ray burst detected last March, believed to be the brightest ever seen, turns out to have been aimed directly at the Earth. A narrow jet that drove material toward us at 99.99995 of the speed of light is revealed in the data, itself wrapped within a somewhat slower and wider jet. The best estimates are that an alignment like this occurs only once every ten years. Says Paul O’Brien (University of Leicester, and a member of the team working on the Swift satellite): “We normally detect only the wide jet of a GRB as the inner jet is...
  • Upper Mass Limit For Black Holes?

    09/10/2008 12:03:56 AM PDT · by SunkenCiv · 24 replies · 8+ views
    ScienceDaily ^ | Wednesday, September 10, 2008 | Royal Astronomical Society
    Once considered rare and exotic objects, black holes are now known to exist throughout the Universe, with the largest and most massive found at the centres of the largest galaxies. These "ultra-massive" black holes have been shown to have masses upwards of one billion times that of our own Sun. Now, Priyamvada Natarajan, an associate professor of astronomy and physics at Yale University and a fellow at the Radcliffe Institute for Advanced Study, has shown that even the biggest of these gravitational monsters can't keep growing forever. Instead, they appear to curb their own growth - once they accumulate about...
  • CERN fires up new atom smasher to near Big Bang

    09/08/2008 4:17:18 PM PDT · by OneVike · 17 replies · 25+ views
    AP ^ | September 7, 2008 | ALEXANDER G. HIGGINS
    GENEVA - It has been called an Alice in Wonderland investigation into the makeup of the universe — or dangerous tampering with nature that could spell doomsday. Whatever the case, the most powerful atom-smasher ever built comes online Wednesday, eagerly anticipated by scientists worldwide who have awaited this moment for two decades.
  • Big Bang Machine' Set to Start Up Wednesday

    09/08/2008 1:36:08 PM PDT · by GiovannaNicoletta · 63 replies · 6+ views
    Foxnews.com ^ | September 8, 2008 | Unattributed (Associated Press)
    GENEVA — It's been called an Alice in Wonderland investigation into the makeup of the universe — or dangerous tampering with nature that could spell doomsday.
  • Fermilab physicists discover "doubly strange" particle

    09/03/2008 12:54:20 PM PDT · by decimon · 29 replies · 24+ views
    Fermilab ^ | Sept. 3, 2008 | Unknown
    Batavia, Ill. - Physicists of the DZero experiment at the U.S. Department of Energy's Fermi National Accelerator Laboratory have discovered a new particle made of three quarks, the Omega-sub-b (Ωb). The particle contains two strange quarks and a bottom quark (s-s-b). It is an exotic relative of the much more common proton and weighs about six times the proton mass. The discovery of the doubly strange particle brings scientists a step closer to understanding exactly how quarks form matter and to completing the "periodic table of baryons." Baryons (derived from the Greek word "barys," meaning "heavy") are particles that contain...
  • Do nuclear decay rates depend on our distance from the sun?

    09/02/2008 8:14:57 PM PDT · by B-Chan · 112 replies · 29+ views
    The Physics Arxiv Blog ^ | August 29th, 2008 | KFC
    Here’s an interesting conundrum involving nuclear decay rates. We think that the decay rates of elements are constant regardless of the ambient conditions (except in a few special cases where beta decay can be influenced by powerful electric fields). So that makes it hard to explain the curious periodic variations in the decay rates of silicon-32 and radium-226 observed by groups at the Brookhaven National Labs in the US and at the Physikalisch-Technische Bundesandstalt in Germany in the 1980s. Today, the story gets even more puzzling. Jere Jenkins and pals at Purdue University in Indiana have re-analysed the raw data...
  • Large Hadron Rap [funny video about the Large Hadron Collider]

    08/31/2008 4:37:53 PM PDT · by 1rudeboy · 11 replies · 24+ views
    Want to know more? Can't sleep, and are too lazy to get up and turn on George Noory? Let this woman put you to sleep.
  • Purdue Reprimands Fusion Scientist for Misconduct

    08/30/2008 1:35:52 AM PDT · by SunkenCiv · 6 replies · 8+ views
    Sci-Tech Today ^ | August 29, 2008 | Associated Press
    The Purdue panel said Rusi Taleyarkhan misled the scientific community by claiming his "bubble fusion" findings had been independently replicated.
  • Arguments that Prove that Climate Change is driven by Solar Activity and not by CO2 Emission

    05/26/2008 4:09:08 PM PDT · by Delacon · 44 replies · 24+ views
    Canada Free Press ^ | May 26, 2008 | Dr. Gerhard Löbert
    <p>Conveyor of a super-Einsteinian theory of gravitation that explains, among many other post-Einstein-effects, the Sun-Earth-Connection and the true cause of the global climate changes.</p> <p>As the glaciological and tree ring evidence shows, climate change is a natural phenomenon that has occurred many times in the past, both with the magnitude as well as with the time rate of temperature change that have occurred in the recent decades. The following facts prove that the recent global warming is not man-made but is a natural phenomenon.</p>
  • Do nuclear decay rates depend on our distance from the sun?

    08/29/2008 9:29:09 AM PDT · by LibWhacker · 108 replies · 86+ views
    Here’s an interesting conundrum involving nuclear decay rates. We think that the decay rates of elements are constant regardless of the ambient conditions (except in a few special cases where beta decay can be influenced by powerful electric fields). So that makes it hard to explain the curious periodic variations in the decay rates of silicon-32 and radium-226 observed by groups at the Brookhaven National Labs in the US and at the Physikalisch-Technische Bundesandstalt in Germany in the 1980s. Today, the story gets even more puzzling. Jere Jenkins and pals at Purdue University in Indiana have re-analysed the raw data...
  • Monster galactic cluster seen in deep Universe: European agency

    08/25/2008 3:56:31 PM PDT · by NormsRevenge · 15 replies · 9+ views
    AFP on Yahoo ^ | 8/25/08 | AFP
    PARIS (AFP) – An orbiting observatory has spotted a massive cluster of galaxies in deep space that can only be explained by the exotic phenomenon known as dark energy, the European Space Agency (ESA) said on Monday. Spotted in a scan by ESA's orbiting X-ray telescope XMM-Newton, the cluster's mass is about 1,000 times that of our own galaxy, the Milky Way, it said. The huge cluster, known by its catalogue number of 2XMM J083026+524133, lies 7.7 billion light years from Earth and helps confirm the existence of dark energy, the agency said. Under this hypothesis, most of the Universe...
  • MY IDEA TO SOLVE ENERGY PROBLEM

    04/23/2006 6:51:41 PM PDT · by Walkingfeather · 193 replies · 2,805+ views
    4/2306 | Walkingfeather
    This is what needs to happen. The government should sponsor a "americal idol of innovation" contest, that is broadcast nation wide and has a $100,000,000. prize for anyone that can create a energy solution that does the following: (please feel free to add to the list) Creates fuel that runs in existing cars without retro fit. Creates a solution from an overwhelming abundant resource that does not require a company to produce. Or Can be created at home with less than $100.00 of parts Is clean burning, Can be posted on the internet for people to test and report in...
  • CERN to Morons: Large Hadron Collider Won't Destroy Earth. Morons.

    04/03/2008 12:48:33 AM PDT · by LibWhacker · 44 replies · 9+ views
    Gizmodo ^ | 3/31/08
    Contrary to the somewhat feverish claims laid out in an recent lawsuit, when our favorite particle-smashing, Force-finding Large Hadron Collider is switched on soon it will not result in the destruction of life as we know it. Such claims are "complete nonsense" say the scientists at CERN (and everywhere else,) in response to the suit. They should know: it's their machine, they designed it and they've been telling everyone for a while that their research shows it's safe. The lawsuit filed by a group of Hawaii residents is alleging that not enough safety checks have been made by CERN to...
  • First particles injected into Large Hadron Collider atom smasher

    08/21/2008 7:43:56 PM PDT · by LibWhacker · 56 replies · 11+ views
    Telegraph ^ | 8/21/08 | Jad Marrouche
    The first particles have been injected into the biggest atom smasher on the planet, marking the start of the countdown to probing the secrets of the universe. Scientists are pushing ahead with powering up the machine, shrugging off speculative fears that it could destroy all life on Earth by sucking it into a black hole. Starting up the biggest scientific experiment ever built is not as simple as flipping a switch.
  • Physicists Seek Answers to Quantum Correlations

    08/16/2008 11:39:34 PM PDT · by ConservativeMind · 24 replies · 13+ views
    Physorg.com ^ | August 14, 2008 | Lisa Zyga
    Physicists sent two photons down optical fibers toward different destinations, and found that the photons could instantly sense each other's behavior. After performing multiple tests on two entangled photons, physicists have yet again found that the photons seem to be communicating faster than the speed of light - at least 100,000 times faster. The researchers hope that their results might encourage theorists to come up with new explanations for the strange quantum mechanical effect. The physicists, led by Nicolas Gisin from the University of Geneva, arranged their experiment by sending two photons down fiber optic cables to detectors in two...
  • Do subatomic particles have free will?

    08/16/2008 6:40:10 PM PDT · by LibWhacker · 40 replies · 20+ views
    Science News ^ | 8/15/08 | Julie Rehmeyer
    If we have free will, so do subatomic particles, mathematicians claim to prove.“If the atoms never swerve so as to originate some new movement that will snap the bonds of fate, the everlasting sequence of cause and effect—what is the source of the free will possessed by living things throughout the earth?”—Titus Lucretius Carus, Roman philosopher and poet, 99–55 BC. Human free will might seem like the squishiest of philosophical subjects, way beyond the realm of mathematical demonstration. But two highly regarded Princeton mathematicians, John Conway and Simon Kochen, claim to have proven that if humans have even the tiniest...
  • Edward Teller ``Father of the H-Bomb'' dies at age 95

    09/09/2003 8:55:00 PM PDT · by MikalM · 138 replies · 648+ views
    <p>Edward Teller, the man who played a key role in U.S. defense and energy policies for more than half a century and was dubbed the "Father of the H-bomb" for his enthusiastic pursuit of the powerful weapon, died Tuesday, a spokesman for Lawrence Livermore Laboratory confirmed. He was 95.</p>
  • The inner Einstein

    12/03/2002 9:47:16 PM PST · by Kaiwen · 113 replies · 660+ views
    U.S. News & World Report ^ | 12/9/02 | THOMAS HAYDEN
    Sharp guy, that Einstein. Kinda funny looking, what with the big hair and all, but real smart. Relativity, that was his thing. That and E=mc2, right? Interesting stuff. Really nice guy too, or was there something about Mrs. Einstein getting a raw deal? Still, he was a genius, definitely a genius. You don't need to be an Einstein to know that. Nearly 50 years after his death and a century after the then unknown physicist started challenging doctrine and stretching brains with his ideas, Albert Einstein remains not just scientifically relevant but a multipurpose icon as well. If anything, his...
  • Physicists spooked by faster-than-light information transfer

    08/14/2008 5:42:56 PM PDT · by LibWhacker · 52 replies · 38+ views
    Nature ^ | 8/13/08 | Geoff Brumfiel
    Quantum weirdness even stranger than previously thought.Two photons can be connected in a way that seems to defy the very nature of space and time, yet still obeys the laws of quantum mechanics. Physicists at the University of Geneva achieved the weird result by creating a pair of ‘entangled’ photons, separating them, then sending them down a fibre optic cable to the Swiss villages of Satigny and Jussy, some 18 kilometres apart. The researchers found that when each photon reached its destination, it could instantly sense its twin’s behaviour without any direct communication. The finding does not violate the laws...
  • Spooky Physics: Signals Seem to Travel Faster Than Light

    08/13/2008 12:11:36 PM PDT · by decimon · 35 replies · 15+ views
    LiveScience ^ | Aug 13, 2008 | Charles Q. Choi
    Strange events that Einstein himself called "spooky" might happen at least 10,000 times the speed of light, according to the latest attempt to understand them.
  • Scientists: Nature's Fundamental Laws May Be Changing

    08/12/2008 8:56:29 PM PDT · by grey_whiskers · 43 replies · 14+ views
    ScienceLive via Fox News ^ | July 13, 2006 | Michael Schirber
    Public confidence in the "constants" of nature may be at an all-time low. Recent research has found evidence that the value of certain fundamental parameters, such as the speed of light or the strength of the invisible glue that holds atomic nuclei together, may have been different in the past. "There is absolutely no reason these constants should be constant," says astronomer Michael Murphy of the University of Cambridge. "These are famous numbers in physics, but we have no real reason for why they are what they are." The observed differences are small — roughly a few parts in a...
  • Berkeley Lab Physicist Challenges Speed of Gravity Claim

    06/23/2003 9:25:12 AM PDT · by RightWhale · 307 replies · 866+ views
    spacedaily.com ^ | 23 Jun 03 | staff
    Berkeley Lab Physicist Challenges Speed of Gravity Claim Berkeley - Jun 22, 2003 Albert Einstein may have been right that gravity travels at the same speed as light but, contrary to a claim made earlier this year, the theory has not yet been proven. A scientist at Lawrence Berkeley National Laboratory (Berkeley Lab) says the announcement by two scientists, widely reported this past January, about the speed of gravity was wrong. Stuart Samuel, a participating scientist with the Theory Group of Berkeley Lab's Physics Division, in a paper published in Physical Review Letters, has demonstrated that an "ill-advised" assumption made...
  • The Large Hadron Collider was tested this weekend and a black hole hasn't destroyed the Earth...yet

    08/12/2008 9:12:25 AM PDT · by SunkenCiv · 38 replies · 23+ views
    VentureBeat ^ | August 10th, 2008 | MG Siegler
    The science blog Cosmic Variance has a great rundown of what the LHC could find. At the top of this list is the Higgs boson, which is the only particle in the Standard Model (the theory that describes the fundamental interactions between the particles that make up all matter), that hasn't yet been detected. The site thinks there is a 95 percent chance the LHC finds this particle, and that could lead to a much better understanding of how our universe works. Other notable possibilities on Cosmic Variance's list include finding extra dimensions (these could be so-called "warped" hidden dimensions...
  • Mad scientists [review of The Black Hole War by Leonard Susskind]

    08/11/2008 8:50:53 AM PDT · by SunkenCiv · 15 replies · 19+ views
    Minneapolis Star Tribune ^ | August 8, 2008 | Deborah Blum
    Susskind, a professor of theoretical physics at Stanford University, has written a book that's part insider history of science, focused on a period in the 1980s and 1990s when physicists were quarreling over the destructive capacity of black holes, and part primer on the science that explains the argument. As the subtitle makes obvious, the story contains an all-star cast of opinionated physicists: assorted Nobel laureates such as Richard Feynman, brilliant minds of the past such as Sir Isaac Newton, and, of course, Stephen Hawking, arguably the best-known theorist of black hole mechanics. Hawking is partly famous for possessing a...
  • Physicists Allay Fears of the End of the World

    08/07/2008 7:51:29 PM PDT · by 444Flyer · 50 replies · 7+ views
    Spiegel ONLINE ^ | 8-06-08 | Charles Hawley
    The video looks a bit like a scene from a low-budget sci-fi horror film. A tiny hole slowly begins sucking in bits of the Earth in Switzerland with mountains, lakes and cities quickly falling into the growing gap. And it just keeps on growing--and growing. By the end of the 38 second movie, the entire planet has been swallowed up -- and all that's left is a shimmering ring in the inky blackness of outer space. Absurd, perhaps. But a brief look around Internet blogs, and especially YouTube, makes it clear that there are a number of people out there...
  • New Exotic Particle May Explain Milky Way Gamma-Ray Phenomenon

    08/03/2008 2:06:47 PM PDT · by LibWhacker · 12 replies · 20+ views
    AstroEngine ^ | 7/26/08 | Ian O'Neill
    There is something strange happening in the core of the Milky Way. A space observatory measuring the energy and distribution of gamma-rays in the cosmos has made an unexpected (and perplexing) discovery. It would seem there is a very high proportion of gamma-ray photons emanating from our galactic core with a very distinctive signature; they have a precise energy of 511 keV (8×10-14 Joules), and there’s a lot of them. So what could possibly be producing these 511 keV gamma-rays? It turns out, 511 keV is a magic number; it is the exact rest mass energy of a positron (the...
  • Right Again, Einstein

    07/05/2008 5:49:29 PM PDT · by neverdem · 32 replies · 27+ views
    ScienceNOW Daily News ^ | 3 July 2008 | Phil Berardelli
    Enlarge ImageIt's relative. Astronomers have been measuring spin precession in an eclipsing pair of pulsars.Credit: Daniel Cantin/McGill University As if his reputation needed cementing, astronomers have confirmed Albert Einstein's status as a supergenius once more. Studying a unique pair of pulsars--small and extremely dense leftovers from supernova explosions--researchers have measured an effect that was predicted by Einstein's 92-year-old general theory of relativity. The result, they report tomorrow in Science, is almost exactly what the famous physicist had foreseen. In Einstein's relativistic universe, matter curves space and slows down time, and the speed of light remains the only constant. But...
  • Lawsuit stirs fear of 'strangelets' destroying the Earth

    07/01/2008 9:35:45 AM PDT · by glymers · 40 replies · 8+ views
    Market Watch ^ | June 12, 2008 | John Letzing
    If all goes according to plan, a massive underground facility in Switzerland will begin smashing particles together later this summer in an effort to provide a clearer understanding of the physical universe than has ever before been possible. Known as the Large Hadron Collider, or LHC, the project is composed of a 17-mile circular tunnel beneath Geneva, containing thousands of magnets meant to send beams of subatomic particles hurtling toward each other. The resulting collisions are expected to release matter similar to that present at the "Big Bang" that created the universe.
  • Earth Will Survive After All, Physicists Say

    06/22/2008 11:44:33 AM PDT · by neverdem · 35 replies · 18+ views
    NY Times ^ | June 21, 2008 | DENNIS OVERBYE
    That black hole that was going to eat the Earth? Forget about it, and keep making the mortgage payments — those of you who still have them. A new particle accelerator, the Large Hadron Collider scheduled to go into operation this fall outside Geneva, is no threat to the Earth or the universe, according to a new safety review approved Friday by the governing council of the European Organization for Nuclear Research, or Cern, which is building the collider. “There is no basis for any concerns about the consequences of new particles or forms of matter that could possibly be...
  • Tech giants use controversial project as test bed ( Hadron Collider threatens the earth says Suit)

    06/13/2008 12:01:07 PM PDT · by Ernest_at_the_Beach · 27 replies · 48+ views
    MarketWatch ^ | June 12, 2008 7:03 p.m. EDT | John Letzing, MarketWatch
    Lawsuit stirs fear of 'strangelets' destroying the Earth; 100,000 chips deployed SAN FRANCISCO (MarketWatch) -- If all goes according to plan, a massive underground facility in Switzerland will begin smashing particles together later this summer in an effort to provide a clearer understanding of the physical universe than has ever before been possible.For companies like Oracle Corp. and Hewlett-Packard Co., which have helped develop a system to send the resulting data surging through a sprawling network, the project is already providing a chance to test some of their most cutting-edge technologies. Video: Tech giants aid project Some of the biggest...
  • Questioning the Big Bang

    04/25/2002 2:34:20 PM PDT · by Bloody Sam Roberts · 197 replies · 624+ views
    MSNBC.com ^ | 4/25/02 | By Alan Boyle
    How did the universe begin, and how will it end? Among cosmologists, the mainstream belief is that the universe began with a bang billions of years ago, and will fizzle out billions of years from now. But two theorists have just fired their latest volley at that belief, saying there could be a timeless cycle of expansion and contraction. It’s an idea as old as Hinduism, updated for the 21st century.THE “CYCLIC MODEL,” developed by Princeton University’s Paul Steinhardt and Cambridge University’s Neil Turok, made its highest-profile appearance yet Thursday on Science Express, the Web site for the journal Science....
  • Probing Question: What happened before the Big Bang?

    08/04/2006 4:26:21 AM PDT · by PatrickHenry · 520 replies · 8,178+ views
    Pennsylvania State University ^ | 03 August 2006 | Barbara Kennedy
    The question of what happened before the Big Bang long has frustrated cosmologists, both amateur and professional. Though Einstein's theory of general relativity does an excellent job of describing the universe almost back to its beginning, near the Big Bang matter becomes so dense that relativity breaks down, says Penn State physicist Abhay Ashtekar. "Beyond that point, we need to apply quantum tools that were not available to Einstein." Now Ashtekar and two of his post-doctoral researchers, Tomasz Pawlowski and Parmpreet Singh, have done just that. Using a theory called loop quantum gravity, they have developed a mathematical model that...
  • Time Before Time [speculative cosmology]

    08/30/2006 1:01:48 AM PDT · by snarks_when_bored · 130 replies · 3,128+ views
    Seed Magazine ^ | August 28, 2006 | Sean Carroll
    TIME BEFORE TIME An event like the Big Bang is about as likely as billions of coin tosses all coming up heads. Explaining why that is might take us from empty space to other universes--and through the mirror of time. by Sean Carroll • Posted August 28, 2006 11:53 AM From the SEPTEMBER issue of Seed:    The nature of time is such that the influence of the very beginning of the universe stretches all the way into your kitchen—you can make an omelet out of an egg, but you can't make an egg out of an omelet. Time, unlike...
  • History Channel - The Universe - Before the Big Bang

    02/25/2008 1:30:39 PM PST · by backtothestreets · 113 replies · 328+ views
    February 25, 2008 | Chuck Plante - aka backtothestreets
    Heads up! Tomorrow night (February 26, 2008 at 9:00 PM), the History Channel will air a new segment of their Universe series that could be very interesting. It will try to address what was before the Big Bang. This is a subject I don't see anyway of discussing without raising religious beliefs.
  • Hints of 'time before Big Bang'

    06/06/2008 12:52:23 PM PDT · by chessplayer · 52 replies · 3+ views
    A team of physicists has claimed that our view of the early Universe may contain the signature of a time before the Big Bang.
  • Hints of 'time before Big Bang'

    06/10/2008 6:05:27 AM PDT · by Michael Barnes · 41 replies · 5+ views
    BBC ^ | 6-6-08 | Chris Lintott
    A team of physicists has claimed that our view of the early Universe may contain the signature of a time before the Big Bang. The discovery comes from studying the cosmic microwave background (CMB), light emitted when the Universe was just 400,000 years old. Their model may help explain why we experience time moving in a straight line from yesterday into tomorrow.