Notices
Results 1 to 2 of 2

Thread: Babbling

  1. #1 Babbling 
    Suspended
    Join Date
    May 2008
    Posts
    1,096
    I watched a programme on BBC 2 last night about the possibility of particles moving faster than light (as in neutrinos from THAT experiment.)

    Hidden in the general dumbing down was someone saying that they were not satisfied with the emission time measurement in that they may assume that the curve would be the same as receiving them when it may not be.

    But anyway, people then started babbling about every thing we know may be wrong, time travel may be possible, that it would undo the laws of cause and effect, etc.

    So what if it is possible that a particle can travel faster than light? Tachyons have been talked about for years. It need not have gone "through" the light barrier since it could have been emitted with an FTL speed, rather than building up speed.

    We have speculation that particles could become infinitely massive at light speed but that is just speculation. The LHC produces particles with insignificant amounts of energy as far as space is concerned so is not a very good measure of what can happen.

    We have had particles, probably protons, from space with energies of 3x10^20 eV which in a race over 20 million light years would arrive less than one meter behind a photon.

    In the end someone said that maybe the particle had popped out of our membrane of space, through another and back into our membrane of space so not actually travelled faster than light. This is because it came about in a very violent event (and supernova 1987A was not a very violent event?)


    Reply With Quote  
     

  2.  
     

  3. #2  
    Forum Sophomore
    Join Date
    May 2011
    Posts
    128
    Photons and neutrons ... My thoughts won't help but I can babble along with the best, lol. Photons are supposedly self propagating transverse electric and magnetic waves and so when I think of them being emitted by an oscillating dipole like an atom or a molecule, I think of the electron in motion along some path relative to the proton and as the electron moves through space it creates a magnetic field perpendicular to its motion. As the energy of the electron drops when a photon is emitted, I am thinking that the photon wave is a burst of energy perpendicular to the path of the electron. The energy of the electron is reduced by the energy of the photon if I'm not mistaking. So though the photon emissions from an atom sum up over time to a spherical wave of photon energy, a single emission might be a plane wave instead of a spherical wave of energy. And that single photon emission might be visible only from a very narrow perspective relative to the source. But put billions of the same photon plane waves together and you get what appears to be a spherical photon wave emanating from the source.

    I don't know and don't want to just Google it, how neutrons originate except that they come from high energy events like the collapse of a star or the collision of galaxies, :shrug:. But there is certainly a big difference between a photon with zero or infinitesimal mass relative to a neutron that has measurable mass so I can't see how they could be emitted from an energy source without a corresponding reduction in the mass of the source.

    And a neutron, instead of being a plane wave is a particle with a path that can only be linear.

    I wonder how the total energy of a photon plane wave compares to the energy of a single neutron particle? Hmm, just babbling too.

    Can you babble about my babble?


    Reply With Quote  
     

Bookmarks
Bookmarks
Posting Permissions
  • You may not post new threads
  • You may not post replies
  • You may not post attachments
  • You may not edit your posts
  •