Recent content by Davephaelon

  1. Davephaelon

    B Will we ever communicate with extraterrestial life in a reasonable time frame?

    Actually, his speculation is based on empirical data. For example the last paragraph on page 2 of the link to his pdf above states: "These were just the initial anomalies that made `Oumuamua different from all the comets and asteroids that we had seen before in the Solar system. As it tumbled...
  2. Davephaelon

    B Will we ever communicate with extraterrestial life in a reasonable time frame?

    Admittedly that is the public perception. But I like his boldness, tempered by a disciplined scientific approach. In many ways he reminds me of another astronomer - Dr. J. Allen Hynek - who served as the scientific consultant for Project Blue Book, on a subject unfortunately associated with...
  3. Davephaelon

    B Will we ever communicate with extraterrestial life in a reasonable time frame?

    According to the article below in Phys.org, an average of 7 Interstellar Objects (ISO's) pass through our solar system every year, and that we might be ready to intercept and examine one such as Oumuamua the next time such an object transits our neighborhood. Avi Loeb of Harvard even speculated...
  4. Davephaelon

    I MOND from MacDowell-Mansouri geometrical formulation

    This is a most interesting thread. I don't recall coming across the MacDowell-Mansouri geometric formulation before. I printed the thread out so that I can read it at my leisure while away from a desktop computer and to digest it more thoroughly.
  5. Davephaelon

    A LQG Legend Writes Paper Claiming GR Explains Dark Matter Phenomena

    I am greatly impressed by Deur's hypothesis, inasmuch as it conforms to Occam's Razor of minimal assumptions yielding maximum explanatory power. It's remarkable that with gravitational self-interaction alone one can resolve most of the puzzles that have confronted astrophysicists tracing back...
  6. Davephaelon

    A LQG Legend Writes Paper Claiming GR Explains Dark Matter Phenomena

    Oops, I see that I already made a query on the issue of explaining enhanced gravity from lensing data beyond the outer boundaries of both galaxies and galaxy clusters, in Deur's SI paradigm, on the thread titled "Do gravitons interact with gravitons". Scanning the responses over there, I see...
  7. Davephaelon

    A LQG Legend Writes Paper Claiming GR Explains Dark Matter Phenomena

    When I first came across Deur's work based on self-interacting gravitons, in analogy with QCD, I was astounded by its elegant simplicity in explaining, for example, the excess orbital velocities of galaxies within a galaxy cluster. Here he invokes flux tubes to account for the additional...
  8. Davephaelon

    Is the concept of "potential" just a mathematical model?

    Thank you Jim McNamara, Vanhees71, and, Fra, for the responses. I'll check our local library for that book authored by J. J. Sakurai and S. Tuan. If it's not too expensive I'll purchase it.
  9. Davephaelon

    Is the concept of "potential" just a mathematical model?

    vanhees71, I am very intrigued by your statement on 13 January, 2021 that the: "..."non-local" way using the em. field." is equivalent to the local way via potentials in interpreting the AB effect. I was hoping you could point me to a reference for this "non-local" way of interpreting the AB...
  10. Davephaelon

    A Interpretations of the Aharonov-Bohm effect

    The late Murray Peshkin, in this 2009 video titled: "Things I Do and Do Not Understand About the Aharonov-Bohm Effect", discusses what appears to be an alternative explanation for the A-B effect. I had trouble catching all the words and watched the video several times, still not fully...
  11. Davephaelon

    Music Music to Lift Your Soul: 4 Genres & Honorable Mention

    Being employed for decades in the oceanographic field, nautical songs were especially appealing. One that stood out was Enya's "Orinoco Flow". I have the fondest memory of that song while out at sea in 1995. Our group had shipped a 1 ton, instrumented, aluminum-hulled, catamaran to San Diego...
  12. Davephaelon

    A Interpretations of the Aharonov-Bohm effect

    In every video or write-up on the AB effect that I've watched or read over the past week or two it's always specified that the solenoid is infinitely long in the idealized experiment. If I understand correctly that results in a non-simply connected space where the A field resides. Thus the...
  13. Davephaelon

    A Interpretations of the Aharonov-Bohm effect

    Thanks for referring me to your paper, which I just brought up on my screen.
  14. Davephaelon

    A Interpretations of the Aharonov-Bohm effect

    I should have read the rebuttal to Vaidman's paper, by Aharonov, Cohen, and Rohrlich, that is also linked above before making the above comment. It's actually not too hard to follow their analysis at the beginning, but I will have to do some deep thinking to follow their arguments all the way...
  15. Davephaelon

    A Interpretations of the Aharonov-Bohm effect

    This paper by Lev Vaidman I find very interesting. I'm only able to read the abstract for now, but what he seems to be saying, is that the Aharonov-Bohm (AB) effect is essentially the same thing as quantum entanglement, and there's no need to invoke the potential concept to explain the AB...
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