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Keyword: stringtheory

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  • A Real Whopper: Black Hole Is Most Massive Known (M87 - HUGHer by 2 or 3 times than speculated)

    06/08/2009 4:34:19 PM PDT · by NormsRevenge · 41 replies · 1,205+ views
    Space.com ^ | 6/8/09 | Andrea Thompson
    PASADENA, CALIF. — The most massive black hole yet weighed lurks at the heart of the relatively nearby giant galaxy M87. The supermassive black hole is two to three times heftier than previously thought, a new model showed, weighing in at a whopping 6.4 billion times the mass of the sun. The new measure suggests that other black holes in nearby large galaxies could also be much heftier than current measurements suggest, and it could help astronomers solve a longstanding puzzle about galaxy development. "We did not expect it at all," said team member Karl Gebhardt of the University of...
  • The Suppression of Inconvenient Facts in Physics

    06/07/2009 7:50:26 PM PDT · by Kevmo · 82 replies · 2,375+ views
    Suppressed Science.Net ^ | 12/06/08 | http://www.suppressedscience.net/
    The Suppression of Inconvenient Facts in Physics "Textbooks present science as a noble search for truth, in which progress depends on questioning established ideas. But for many scientists, this is a cruel myth. They know from bitter experience that disagreeing with the dominant view is dangerous - especially when that view is backed by powerful interest groups. Call it suppression of intellectual dissent. The usual pattern is that someone does research or speaks out in a way that threatens a powerful interest group, typically a government, industry or professional body. As a result, representatives of that group attack the...
  • The End of Snide Remarks Against Cold Fusion

    06/05/2009 5:56:08 PM PDT · by Kevmo · 96 replies · 2,393+ views
    PHYSICS ARTICLES DISCUSSION FORUM Fusion and the LHC (Large Hadron Collider) Gravitonics article found HERE. Located near Geneva, close to the border between Switzerland and France, the Large Hadron Collider is the largest particle accelerator in the world at a cost of about 9 billion dollars. It is strange how we love to put all of our eggs in one basket. At the same time 9 billion was spent on the LHC, Dr Bussard could not find a few million for his fusion reactor. Don't get me wrong, the Physicists working at CERN are some of the best in the...
  • Particles Larger Than Galaxies Fill the Universe?

    06/05/2009 11:27:07 AM PDT · by SunkenCiv · 39 replies · 1,076+ views
    National Geographic News ^ | June 2, 2009 | Charles Q. Choi
    The oldest of the subatomic particles called neutrinos might each encompass a space larger than thousands of galaxies, new simulations suggest... According to quantum mechanics, the "size" of a particle such as a neutrino is defined by a fuzzy range of possible locations. We can only detect these particles when they interact with something such as an atom, which collapses that range into a single point in space and time. For neutrinos created recently, the ranges they can exist in are very, very small. But over the roughly 13.7-billion-year lifetime of the cosmos, "relic" neutrinos have been stretched out by...
  • First supernovae blew early galaxies apart

    06/04/2009 3:07:32 PM PDT · by Fred Nerks · 14 replies · 589+ views
    Cosmos Online ^ | 3 June 2009 | 2009by Heather Catchpole
    SYDNEY: The universe's first stars blew small galaxies apart when they exploded, effectively quashing all nearby star formation, say Japanese astrophysicists. The theory, based on analytical calculations of the energy and disruptive effects of early supernovae, adds another piece to the puzzle of what the first stars were like and how they influenced galaxy formation. The first stars formed around 200 million years after the Big Bang in clumps of dark matter called dark matter haloes – the basic building blocks of galaxies. Running out of gas These stars were massive, probably 10 to 100 times bigger than the Sun....
  • What string theory is really good for

    06/01/2009 7:09:36 PM PDT · by SunkenCiv · 15 replies · 618+ views
    New Scientist issue 2710 ^ | Monday, June 1, 2009 | Jessica Griggs
    String theory: you love it or loathe it. To some it represents our best hope for a route to a "theory of everything"; others portray it as anything from a mathematically obtuse minefield to a quasi-religion that has precious little to do with science. There might be a middle way. String theory's mathematical tools were designed to unlock the most profound secrets of the cosmos, but they could have a far less esoteric purpose: to tease out the properties of some of the most complex yet useful types of material here on Earth. Both string theorists and condensed matter...
  • Supercool microfluidics

    05/29/2009 5:35:05 PM PDT · by neverdem · 11 replies · 739+ views
    Chemical Technology ^ | 29 May 2009 | Keith Farrington
    Our understanding of life and technology at extreme temperatures could become clearer thanks to a microfluidic device that studies ice formation. The new instrument studies ice formation in supercooled water George Whitesides, at Harvard University, Cambridge, US, and colleagues have developed a microfluidic device that produces supercooled water drops (droplets that remain liquid below 0 °C) and measures the temperature at which ice nucleates in them. The device is two orders of magnitude faster that current state-of-the-art ice nucleation instruments and very accurate, claims the team.Ice nucleation controls water's freezing process. Studying how water behaves is important for our comprehension...
  • Iraqi Teen Solves 300-Year-Old Math Puzzle in Four Months

    05/29/2009 4:32:23 AM PDT · by metmom · 20 replies · 2,566+ views
    FOXNews.com ^ | Friday, May 29, 2009 | FOX NEWS
    An Iraqi-born 16-year-old reportedly has cracked a math puzzle that has gone unsolved for over 300 years. Mohamed Altoumaimi, who immigrated to Sweden six years ago, took only four months to find a formula that explains a sequence of calculations known as the Bernoulli numbers, a code that had stumped some of the best experts in the field, Agence France-Presse reported.
  • XMM-Newton takes astronomers to a black hole’s edge (swallowing equivalent of two Earths per hour)

    05/27/2009 12:26:10 PM PDT · by NormsRevenge · 22 replies · 928+ views
    European Space Agency ^ | 5/27/09 | ESA
    Using new data from ESA’s XMM-Newton spaceborne observatory, astronomers have probed closer than ever to a supermassive black hole lying deep at the core of a distant active galaxy. The galaxy – known as 1H0707-495 – was observed during four 48-hr-long orbits of XMM-Newton around Earth, starting in January 2008. The black hole at its centre was thought to be partially obscured from view by intervening clouds of gas and dust, but these current observations have revealed the innermost depths of the galaxy. “We can now start to map out the region immediately around the black hole,” says Andrew Fabian,...
  • The Man Who Found Quarks and Made Sense of the Universe

    05/25/2009 1:35:21 PM PDT · by SunkenCiv · 7 replies · 463+ views
    Discover Interview ^ | March 17, 2009 | Susan Kruglinski
    It was at Caltech that Gell-Mann helped to lay the foundations for our understanding of the components that make up matter. He drafted a blueprint of subatomic physics that he called the Eightfold Way. At the time, physicists understood that atoms are constructed from protons and neutrons, but they had also found many other mysterious particles. The Eightfold Way made sense of this baffling menagerie, finding within it places for particles never even imagined. The work was so important that it netted Gell-Mann a Nobel Prize in 1969. In 1984 Gell-Mann pursued his dream of working in other fields by...
  • The Biocentric Universe Theory: Life Creates Time, Space, and the Cosmos Itself

    05/25/2009 1:29:44 PM PDT · by SunkenCiv · 22 replies · 811+ views
    Discover magazine ^ | May 1, 2009 | Robert Lanza and Bob Berman
    Three hundred years ago, the Irish empiricist George Berkeley contributed a particularly prescient observation: The only thing we can perceive are our perceptions. In other words, consciousness is the matrix upon which the cosmos is apprehended. Color, sound, temperature, and the like exist only as perceptions in our head, not as absolute essences. In the broadest sense, we cannot be sure of an outside universe at all. For centuries, scientists regarded Berkeley's argument as a philosophical sideshow and continued to build physical models based on the assumption of a separate universe "out there" into which we have each individually arrived....
  • Europium’s superconductivity demonstrated

    05/24/2009 1:18:54 AM PDT · by neverdem · 9 replies · 1,293+ views
    Science News ^ | May 20th, 2009 | Laura Sanders
    The rare earth metal is the 53rd naturally occurring element to possess the property An old element just learned a new trick under pressure. When cooled and squeezed very hard, the soft metallic element europium turns into a superconductor, allowing electrons to flow unfettered by resistance, a study appearing May 13 in Physical Review Letters shows. The results make europium the 53rd of the 92 naturally occurring elements to possess superconductivity, which, if harnessed, could make for more efficient energy transfer. Europium, a rare earth metal with a silver color, is strongly magnetic at everyday temperatures and pressure. Study coauthor...
  • Manhattan Project Physicist York Dies

    05/23/2009 1:26:08 PM PDT · by nickcarraway · 11 replies · 515+ views
    Express ^ | 22 May 2009 | Tony Perry
    Herbert York, a leading physicist in the development of the atomic bomb during World War II who later became an arms-control advocate and founding chancellor of the University of California, San Diego, USA, passed away. He was 87. York died on Tuesday at Thornton Hospital in San Diego, the university announced, after a long illness. His death was attributed to acute myelogenous leukemia. “Herb York made this campus and this world a better place,” UC San Diego chancellor Marye Anne Fox said in a statement. Beginning with his work on the Manhattan Project, York held a series of high-level scientific,...
  • Parallel Universes: Are They More Than a Figment of Our Imagination? A Galaxy Classic

    05/21/2009 1:44:04 PM PDT · by LibWhacker · 41 replies · 965+ views
    "The multiverse is no longer a model, it is a consequence of our models.” ~Aurelien Barrau, particle physicist at CERN The Hollywood blockbuster, The Golden Compass, adapted from the first volume of Pullman's classic sci-fi trilogy, "His Dark Materials" portrays various universes as only one reality among many, but how realistic is this kind of classic sci-fi plot? While it hasn’t been proven yet, many highly respected and credible scientists are now saying there’s reason to believe that parallel dimensions could very well be more than figments of our imaginations. "The idea of multiple universes is more than a fantastic...
  • 13 things that do not make sense

    05/14/2009 2:03:46 PM PDT · by Hawthorn · 36 replies · 1,712+ views
    New Scientist ^ | April 14, 2009 | Michael Brooks
    Don't try this at home. Several times a day, for several days, you induce pain in someone. You control the pain with morphine until the final day of the experiment, when you replace the morphine with saline solution. Guess what? The saline takes the pain away.
  • Science, Spirituality, and Some Mismatched Socks

    05/12/2009 7:22:49 AM PDT · by Squidpup · 11 replies · 1,058+ views
    Wall Street Journal ^ | May 5, 2009 | GAUTAM NAIK
    One of quantum physics' crazier notions is that two particles seem to communicate with each other instantly, even when they're billions of miles apart. Albert Einstein, arguing that nothing travels faster than light, dismissed this as impossible "spooky action at a distance." The great man may have been wrong. A series of recent mind-bending laboratory experiments has given scientists an unprecedented peek behind the quantum veil, confirming that this realm is as mysterious as imagined. Quantum physics is the study of the very small -- atoms, photons and other particles. Unlike the cause-and-effect of our everyday physical world, subatomic particles...
  • New nanocrystals show potential for cheap lasers, new lighting (crystals continuously emit light!)

    05/10/2009 6:36:13 PM PDT · by LibWhacker · 16 replies · 872+ views
    For more than a decade, scientists have been frustrated in their attempts to create continuously emitting light sources from individual molecules because of an optical quirk called "blinking," but now scientists at the University of Rochester have uncovered the basic physics behind the phenomenon, and along with researchers at the Eastman Kodak Company, created a nanocrystal that constantly emits light. The findings, detailed online in today's issue of Nature, may open the door to dramatically less expensive and more versatile lasers, brighter LED lighting, and biological markers that track how a drug interact with a cell at a level never...
  • New Pattern Found in Prime Numbers

    05/10/2009 5:17:09 PM PDT · by decimon · 55 replies · 2,355+ views
    PhysOrg.com ^ | May 8th, 2009 | Lisa Zyga
    In a recent study, Bartolo Luque and Lucas Lacasa of the Universidad Politécnica de Madrid in Spain have discovered a new pattern in primes that has surprisingly gone unnoticed until now. They found that the distribution of the leading digit in the prime number sequence can be described by a generalization of Benford’s law. In addition, this same pattern also appears in another number sequence, that of the leading digits of nontrivial Riemann zeta zeros, which is known to be related to the distribution of primes. Besides providing insight into the nature of primes, the finding could also have applications...
  • Should Administration Fund New Breakthroughs in Alternative Energy

    05/10/2009 10:51:25 AM PDT · by energyguy99 · 19 replies · 573+ views
    Green Energy News ^ | 5/10/09 | energyman
    One of the technologies that seems a likely candidate for this funding is the rebirth of cold fusion, or now known as a low energy nuclear reaction (LENR) such as featured in a 60 Minutes TV news magazine segment on April 19.
  • The day the universe froze; New dark energy model includes cosmological phase transition

    05/08/2009 1:40:50 PM PDT · by Mike Fieschko · 19 replies · 478+ views
    euarekalert.org ^ | May 8, 2009 | David F. Salisbury [?]
    Imagine a time when the entire universe froze. According to a new model for dark energy, that is essentially what happened about 11.5 billion years ago, when the universe was a quarter of the size it is today. The model, published online May 6 in the journal Physical Review D, was developed by Research Associate Sourish Dutta and Professor of Physics Robert Scherrer at Vanderbilt University, working with Professor of Physics Stephen Hsu and graduate student David Reeb at the University of Oregon. A cosmological phase transition -- similar to freezing -- is one of the distinctive aspects of this...