• Klein Gordon equation and particles with spin

    Updated: 2011-12-31 06:44:59
    I am a newbie to QM. Why can't the Klein Gordon equation be used to describe particles with spin? Thanks

  • electric current transmitted over great distances.

    Updated: 2011-12-31 04:47:23
    Kind of a basic doubt here, but it has been nagging me for a while now. The electric field generated by a power station is a non-conservative one, and it varies as 1/r with respect to the distance of...

  • Is there a fourth dimension?

    Updated: 2011-12-31 04:41:16
    Well? Is there? And if there is what kind of experiment could I perform to prove that there is? Or prove that there isn't?

  • # of Nodes / Branches of a Circuit

    Updated: 2011-12-31 04:19:42
    http://imageshack.us/photo/my-images/804/32792171.png/ The circuit supposedly has 7 branches and 5 nodes. Am I counting the nodes and branches correct? I'm only counting 4 nodes. Thanks.

  • 2011: A Banner Year for Hype

    Updated: 2011-12-30 19:14:13
    Since every blogger seems to feel it necessary to have a year-in-review posting, I thought it appropriate to point out that 2011 has been a banner year for string theory and related hype, with about twice as many editions of … Continue reading →

  • This Week’s Hype

    Updated: 2011-12-22 16:44:12
    The Japanese are getting in on the string theory hype business, with KEK issuing a press release today with the title: The mechanism that explains why our universe was born with 3 dimensions: a 40-year-old puzzle of superstring theory solved … Continue reading →

  • The twelve days of winter break: particle physics edition

    Updated: 2011-12-22 15:00:12
    As symmetry breaking closes down for its long winter's nap, please enjoy (or at least put up with) a badly adapted holiday song and the chance to reflect on a fascinating year in particle physics.

  • U.S. ships world’s largest digital camera to Chile

    Updated: 2011-12-20 15:00:49
    A four-ton digital camera landed safely in Chile this month on its way to making history by enabling the world’s largest galaxy survey, starting next year. Getting the camera there was a worldwide feat of technology and transportation prowess.

  • The Big 'Maybe': What The 'God Particle' Hunt Tells Us About Science

    Updated: 2011-12-13 15:25:00
    The Higgs might be found. The Higgs might not be found. After all that time and all that effort, the Higgs might not exist in the energies we can probe or, might not exist at all. More data, more observation will eventually give us the answer.

  • Possible signs of the Higgs remain in latest analyses

    Updated: 2011-12-13 14:41:46
    Two experiments at the Large Hadron Collider have nearly eliminated the space in which the Higgs boson could dwell, scientists announced in a seminar held at CERN today. However, the ATLAS and CMS experiments see modest excesses in their data that could soon uncover the famous missing piece of the physics puzzle.

  • Fabric of the Cosmos Available on DVD

    Updated: 2011-12-11 20:00:59
    Physicist and popular author Brian Greene hosted a series of four documentaries as part of the American public television station PBS' NOVA science series. The documentary, Fabric of the Cosmos, ...Read Full Post

  • The Physics of Christmas

    Updated: 2011-12-11 13:35:26
    Home Education Physics Physics Search Physics Basic Concepts Theories Experiments Share Free Physics Newsletter Sign Up Discuss in my forum The Physics of Christmas By Andrew Zimmerman Jones About.com Guide December 11, 2011 My Bio Headlines Forum RSS As a science geek , once of the coolest gifts I ever received was a copy of The Physics of Christmas given to me by my grandmother only a few years before her death . In addition to some discussion of the thermodynamics of cooking turkey and the possible scientific explanation of the Christmas star there's a great historical analysis of how Christmas has change over the years . One of the most fun parts for me was the chapter which discussed Santa . How could he travel the whole world in one night Well , physics offers some . ideas So if

  • A new book plays on the mystery of physics machines

    Updated: 2011-12-09 16:53:03
    Underground and closed off from visitors, experiments in particle physics often hide, rather than flaunt, the exotic and intricate machines that seem more at home in a science fiction blockbuster. No space shuttles, rockets or rovers wow visitors at today’s physics laboratories. The tried and true conduit from the underground to the outside world remains in most part the camera.

  • NASA satellite could reveal if primordial black holes are dark matter

    Updated: 2011-12-09 14:50:01
    (PhysOrg.com) -- The primary objective of NASA’s Kepler satellite, which was launched in March 2009 to orbit the Sun, is to search for Earth-like planets in a portion of the Milky Way galaxy. But now a team of physicists has proposed that Kepler could have a second appealing purpose: to either detect or rule out primordial black holes (PBHs) of a certain mass range as the primary constituent of dark matter.

  • 15th East Coast Gravity Meeting and Josh Goldberg Fest at Syracuse

    Updated: 2011-12-05 18:27:18
    The 15th East Coast Gravity Meeting (ECG) will be held at Syracuse University, Saturday April 21th and Sunday April 22th, 2012. The meeting is meant to be an informal gathering of researchers working in all fields relating to gravity and cosmology. In addition, this year’s meeting will have an additional day of festivities (Friday April [...]

  • X Edition of the SIGRAG School: Astrophysical Black Holes

    Updated: 2011-12-03 13:33:44
    X Edition of the Sigrav Graduate School in Contemporary Relativity and Gravitational Physics ASTROPHYSICAL BLACK HOLES Villa Olmo, May 21-26 May, 2012 The Schools are directed to Ph.D. students and young Post-Docs in Physics, Astronomy and Mathematics who are interested in widening their knowledge in the fields of Physical Cosmology, Relativistic Astrophysics, General Relativity, Experimental Gravity and the [...]

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