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Theoretical

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Everything posted by Theoretical

  1. True. Please explain where the energy went that was put in the magnetic field. As stated, the coil material resistivity is high. Only a fraction of the energy went back into the coil.
  2. Okay thanks for the reply. I'm not sure how you would like me to establish this. I think it's well established that DC current flowing through a coil produces a magnetic field outside of the coil. The measured distance just depends how sensitive your detector is. Similarly isn't it well established that if the DC current is abruptly removed from a coil, that an electromagnetic pulse will be generated even though there is no appreciable current flowing through the coil mediately after the current is turned off? I've seen oscilloscope shots at varying points that show the pulse travels inwardly to the coil then outwardly.
  3. It seems that radio wavelength experiments could shed some light on answering this question that I would like to understand. Consider the following experiment. A circular coil antenna, preferably made of high resistivity material so as to immediately quench the electrical current. A power supply produces DC current through the wire, thus forming a magnetic field that extends outside the coil. The longer the current is held, the farther out the field stabilizes. Then, suddenly the current is removed from the coil. This produces a stream of photons that travel inward toward the center of the coil antenna. The photons point of origin are not from the coil. They are coming from outside the coil. We know the magnetic field is collapsing. For example a part of the field that is say 20 meters away will obviously take at least 20m/c seconds for the photons to arrive. Since the coil is high resistivity, the incoming photons have very little effect on the antenna, and therefore continue traveling. Can someone please explain how the distant magnetic field created photons? Greatly appreciated!
  4. I see that in the photon structure page like you said while in mobile mode. In the desktop mode it only says this article may be too long. Do you see errors in the page? BTW the Two-photon physics page doesn't have the issues notice.
  5. Here's a photon-photon experiment. The final step consists of a photon-photon interaction to create matter. http://www.nytimes.com/1997/09/16/science/scientists-use-light-to-create-particles.html Wikipedia has this interesting statement, "From quantum electrodynamics it can be found that photons cannot couple directly to each other, since they carry no charge, but they can interact through higher-order processes. A photon can, within the bounds of the uncertainty principle, fluctuate into a charged fermionantifermion pair, to either of which the other photon can couple. This fermion pair can be leptons or quarks. Thus, two-photon physics experiments can be used as ways to study the photon structure, or what is "inside" the photon." http://en.m.wikipedia.org/wiki/Two-photon_physics
  6. There are bunch of articles on this and supposedly experiments to back it up. So it seems that two gamma ray photons can be converted into an electron-positron pair in a vacuum. Perhaps the probability deceases with photon energy? For example, an electron neutrino with less than 0.0000022 MeV/c^2, which is about the energy of a visible green photon of 564 nm. Will any electron neutrino & anti electron neutrino pair be created by two crossing perpendicular beams of 564 nm photons?
  7. Well this should make a lot of scientists happy. Especially the ones who doubt that they found the Higgs boson.
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