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Keyword: stringtheory

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  • Is Betelgeuse about to blow? (going supernova in weeks or just another breathless rumor?)

    06/01/2010 6:09:32 PM PDT · by LibWhacker · 103 replies · 2,158+ views
    DiscoverMagazine ^ | 6/01/10 | Phil Plait
    I was going to wait to write about this, but I’m getting a lot of emails about it, so I’ll say something now, and followup when I get more information. The story: BABloggee Alereon (and many others) sent me to an interesting site: Life After the Oil Crash Forum — a forum that apparently has a lot of doomsday-type scuttlebutt posted to it. An anonymous poster there says he has heard that the star Betelgeuse is about to go supernova, maybe as soon as a few weeks: I was talking to my son last week (he works on Mauna Kea),...
  • Scientists discover explanation for why the Universe exists

    06/01/2010 12:39:32 PM PDT · by SeekAndFind · 135 replies · 2,433+ views
    Yahoo News ^ | 05/20/2010 | Michael Bolen
    Physicists have long wondered why the universe exists when matter and anti-matter particles obliterate each other on contact. But new data from a particle accelerator in the United States suggests a reason. The tests showed that when anti-protons and protons collide, the resulting new particles show a one per cent skew toward matter over anti-matter. Over a long period of time, this characteristic of the universe could explain why matter has come to dominate over anti-matter. "Many of us felt goose bumps when we saw the result," said Stefan Soldner-Rembold, a physicist at the University of Manchester in the United...
  • Why We Exist: Matter Wins Battle Over Antimatter

    05/19/2010 6:56:50 PM PDT · by KevinDavis · 32 replies · 650+ views
    space.com ^ | 05/18/10
    The seemingly inescapable fact that matter and antimatter particles destroy each other on contact has long puzzled physicists wondering how life, the universe or anything else can exist at all. But new results from a particle accelerator experiment suggest that matter does seem to win in the end.
  • Physics

    05/17/2010 1:58:25 PM PDT · by Sprite518 · 44 replies · 931+ views
    Google Videos ^ | 2003 | Nassim Haramein
    If you are not yet familiar with Nassim Haramein's exciting work, prepare yourself for an exhilarating odyssey into hyperspace and beyond. Haramein, who has spent his lifetime researching fields of physics from quantum theory to relativistic equations and cosmology, will lead you along a fascinating discussion geared to a layman's understanding of the fundamental nature of the universe and creation that includes black holes, gravitational forces, dimensions, and the very structure of space itself - all of which are integral parts of his now-complete Unified Field Theory. Haramein's theory is currently in peer review process for publication in physics journals;...
  • A New Clue to Explain Existence

    05/17/2010 10:08:26 PM PDT · by OldDeckHand · 13 replies · 624+ views
    NY Times ^ | 05/17/10 | Dennis Overbye
    Physicists at the Fermi National Accelerator Laboratory are reporting that they have discovered a new clue that could help unravel one of the biggest mysteries of cosmology: why the universe is composed of matter and not its evil-twin opposite, antimatter. If confirmed, the finding portends fundamental discoveries at the new Large Hadron Collider outside Geneva, as well as a possible explanation for our own existence.
  • Redefining electrical current law with the transistor laser

    05/12/2010 1:20:10 PM PDT · by decimon · 15 replies · 696+ views
    UNIVERSITY OF ILLINOIS ^ | May 12, 2010 | Liz Ahlberg
    CHAMPAIGN, Ill. — While the laws of physics weren’t made to be broken, sometimes they need revision. A major current law has been rewritten thanks to the three-port transistor laser, developed by Milton Feng and Nick Holonyak Jr. at the University of Illinois. With the transistor laser, researchers can explore the behavior of photons, electrons and semiconductors. The device could shape the future of high-speed signal processing, integrated circuits, optical communications, supercomputing and other applications. However, harnessing these capabilities hinges on a clear understanding of the physics of the device, and data the transistor laser generated did not fit neatly...
  • H2356-309: X-ray Discovery Points to Location of Missing Matter (Chandra finds WHIM)

    05/11/2010 7:25:05 PM PDT · by NormsRevenge · 16 replies · 608+ views
    Scientists have used NASA's Chandra X-ray Observatory and ESA's XMM-Newton to detect a vast reservoir of gas lying along a wall-shaped structure of galaxies about 400 million light years from Earth. In this artist's impression, a close-up view of the so-called Sculptor Wall is depicted. Spiral and elliptical galaxies are shown in the wall along with the newly detected intergalactic gas, part of the so-called Warm Hot Intergalactic Medium (WHIM), shown in blue. This discovery is the strongest evidence yet that the "missing matter" in the nearby Universe is located in an enormous web of hot, diffuse gas. The X-ray...
  • STEPHEN HAWKING: How to build a time machine

    05/05/2010 11:26:51 AM PDT · by SeekAndFind · 79 replies · 2,019+ views
    Daily Mail ^ | 05/05/2010 | Stephen Hawking
    Hello. My name is Stephen Hawking. Physicist, cosmologist and something of a dreamer. Although I cannot move and I have to speak through a computer, in my mind I am free. Free to explore the universe and ask the big questions, such as: is time travel possible? Can we open a portal to the past or find a shortcut to the future? Can we ultimately use the laws of nature to become masters of time itself? Time travel was once considered scientific heresy. I used to avoid talking about it for fear of being labelled a crank. But these days...
  • What Do You Think Were The Top Ten Scientific Discoveries?

    05/05/2010 2:39:11 PM PDT · by Niuhuru · 208 replies · 2,505+ views
    Mind of Niuhuru | May 5 2010 | Niuhuru
    What do my fellow FReepers think were the top ten scientific discoveries to date?
  • Japanese Scientists Create Elastic Water

    05/03/2010 8:29:25 AM PDT · by Daffynition · 38 replies · 1,559+ views
    Tom's Guide ^ | January 25, 2010 | Kevin Parrish
    Elastic Water could eventually replace plastic, or be used in an environmentally-safe plastic. Bernama, a part of the Malaysian National News Agency, reports that Japanese scientists have created “elastic water." Developed at the Tokyo University, the new material consists mostly of water--95-percent--with an added two grams of clay and organic material. The resulting substance resembles jelly, but is extremely elastic and transparent. The invention was originally revealed last week in the latest issue of the Nature scientific magazine. According to the article, the new material is quite safe for the environment and humans, and may be a “long-term” tool in...
  • Can world's largest laser zap Earth's energy woes?

    05/03/2010 11:05:02 AM PDT · by JoeProBono · 60 replies · 1,325+ views
    cnn ^ | April 28, 2010 | John D. Sutter
    Livermore, California (CNN) -- Scientists at a government lab here are trying to use the world's largest laser -- it's the size of three football fields -- to set off a nuclear reaction so intense that it will make a star bloom on the surface of the Earth. The Lawrence Livermore National Laboratory's formula for cooking up a sun on the ground may sound like it's stolen from the plot of an "Austin Powers" movie. But it's no Hollywood fantasy: The ambitious experiment will be tried for real, and for the first time, late this summer. If they're successful, the...
  • Big Bang Rebuttal

    04/27/2010 9:09:27 AM PDT · by TFI · 24 replies · 799+ views
    The Freemen Institute ^ | 4/27/2010 | Joseph Olsen
    Superstition has exerted a powerful force on human psyche and history. Strengthened with a few facts, a superstition becomes accepted reality until new perceptions can reopen debate. That is an exciting possibility in today’s Nouveau Renaissance. Humanity’s new course needs a road sign: “Caution, Falling False Paradigms Ahead”. Climategate has shown that even the most well funded science can be wrong. All objective, science trained minds have left the Global Warming station. Well meaning scientists are already doing damage assessments and future hazard avoidance studies. It is now a perfect time to reassess another possibly defective theory on the origin...
  • Don’t talk to aliens warns Stephen Hawking(extraterrestrials almost certain to exist)

    04/24/2010 10:21:29 PM PDT · by dragnet2 · 162 replies · 3,973+ views
    timesonline ^ | 4/25/2010 | Jonathan Leake
    THE aliens are out there and Earth had better watch out, at least according to Stephen Hawking. He has suggested that extraterrestrials are almost certain to exist — but that instead of seeking them out, humanity should be doing all it that can to avoid any contact. Alien life, he will suggest, is almost certain to exist in many other parts of the universe: not just in planets, but perhaps in the centre of stars or even floating in interplanetary space. Hawking’s logic on aliens is, for him, unusually simple. The universe, he points out, has 100 billion galaxies, each...
  • Mysterious New Object Discovered in Space

    04/19/2010 6:20:26 PM PDT · by KevinDavis · 29 replies · 962+ views
    space.com ^ | 04/19/10 | Charles Q. Choi
    A strange and mysterious new object in space may the brightest and long-lasting "micro-quasar" seen thus far, a miniature version of the brightest objects in the universe. The object suddenly began pumping out radio waves last year in the relatively nearby galaxy M82, some 10 million light-years away. Its discovery was announced Tuesday. "The new object, which appeared in May 2009, has left us scratching our heads — we've never seen anything quite like this before," said researcher Tom Muxlow, a radio astronomer at the University of Manchester's Jodrell Bank Observatory in England.
  • Atom-grabbing 'black hole' created

    04/18/2010 9:20:21 PM PDT · by neverdem · 32 replies · 1,013+ views
    New Scientist ^ | 09 April 2010 | Rachel Courtland
    An artificial "black hole" designed to capture wayward atoms has been created. It paves the way for an atom trap that could yield previously unknown states of matter. A team led by Lene Hau of Harvard University has mimicked the death spiral of matter falling into a cosmic black hole by applying a voltage across a carbon nanotube – a rolled-up sheet of carbon atoms. This created a powerful electric field that tugged at nearby rubidium atoms, which had been chilled to a fraction of a degree above absolute zero: a positive charge on the surface of the nanotubes attracts...
  • Every Black Hole Contains Another Universe?

    04/14/2010 1:44:56 PM PDT · by NYer · 54 replies · 1,713+ views
    Nat Geo ^ | April 9, 2010 | Ker Than
    A supermassive black hole sits inside the galaxy Centaurus A, seen in an artist's conception. Like part of a cosmic Russian doll, our universe may be nested inside a black hole that is itself part of a larger universe.In turn, all the black holes found so far in our universe—from the microscopic to the supermassive—may be doorways into alternate realities.According to a mind-bending new theory, a black hole is actually a tunnel between universes—a type of wormhole. The matter the black hole attracts doesn't collapse into a single point, as has been predicted, but rather gushes out a "white hole"...
  • White House Science 'Czar' Tells Students: U.S. Can't Expect to Be Number One...

    04/14/2010 3:01:09 AM PDT · by Cindy · 24 replies · 735+ views
    CNS NEWS.com ^ | Monday, April 12, 2010 | By Christopher Neefus
    Note: Photo included. "White House Science ‘Czar’ Tells Students: U.S. Can’t Expect to Be Number One in Science and Technology Forever" SNIPPET: "The Obama administration’s top science and technology official, who has argued for the economic de-development of America, warned science students last Friday that the United States cannot expect to be “number one” forever. “We can’t expect to be number one in everything indefinitely,” Dr. John P. Holdren said at the American Association for the Advancement of Science (AAAS). Holdren is director of the White House Office of Science and Technology Policy and chairs the President’s Council of Advisors...
  • Man arrested at Large Hadron Collider claims he's from the future

    04/09/2010 7:02:02 PM PDT · by jmcenanly · 44 replies · 2,058+ views
    Crave Cnet ^ | 01 April 2010, 10:33am | Nick Hide
    A would-be saboteur arrested today at the Large Hadron Collider in Switzerland made the bizarre claim that he was from the future. Eloi Cole, a strangely dressed young man, said that he had travelled back in time to prevent the LHC from destroying the world.snip Police said Mr Cole, who was wearing a bow tie and rather too much tweed for his age, would not reveal his country of origin. "
  • Mysterious radio waves emitted from nearby galaxy

    04/14/2010 2:55:48 PM PDT · by TaraP · 72 replies · 2,406+ views
    New Scientist ^ | April 14th, 2010
    There is something strange in the cosmic neighbourhood. An unknown object in the nearby galaxy M82 has started sending out radio waves, and the emission does not look like anything seen anywhere in the universe before. "We don't know what it is," says co-discoverer Tom Muxlow of Jodrell Bank Centre for Astrophysics near Macclesfield, UK. The thing appeared in May last year, while Muxlow and his colleagues were monitoring an unrelated stellar explosion in M82 using the MERLIN network of radio telescopes in the UK. A bright spot of radio emission emerged over only a few days, quite rapidly in...
  • Discovery that quasars don't show time dilation mystifies astronomers

    04/12/2010 8:40:43 PM PDT · by Lorianne · 108 replies · 1,813+ views
    Physorg ^ | 09 March 2010 | Lisa Zyga
    The phenomenon of time dilation is a strange yet experimentally confirmed effect of relativity theory. One of its implications is that events occurring in distant parts of the universe should appear to occur more slowly than events located closer to us. For example, when observing supernovae, scientists have found that distant explosions seem to fade more slowly than the quickly-fading nearby supernovae. The effect can be explained because (1) the speed of light is a constant (independent of how fast a light source is moving toward or away from an observer) and (2) the universe is expanding at an accelerating...