Recent content by James Hasty

  1. J

    I Synchronizing clocks in an inertial frame if light is anisotropic

    Let's be clear on definitions: The 2WSOL can be calculated by timing a reflected light beam using 1 clock. For example: A sends a signal to point B, it is reflected back to A. Tee speed of light is calculated: c = 2L / ( t[A2] - t[A1] ). It is the same for all observers. The 1WSOL cannot be...
  2. J

    I Synchronizing clocks in an inertial frame if light is anisotropic

    An observer can only know that if the 1WSOL is isotropic. I am assuming it is not.
  3. J

    I Synchronizing clocks in an inertial frame if light is anisotropic

    That is for the 2WSOL (2-way round trip of light), which is a given because it is true. I am assuming the 1WSOL is anisotropic.
  4. J

    I Synchronizing clocks in an inertial frame if light is anisotropic

    In the introduction, "it is given" that the average speed of light is c for the 2WSOL . Then t[B2] - t[B1] = 2L/c.
  5. J

    I Synchronizing clocks in an inertial frame if light is anisotropic

    ASSUMPTIONS 1. Two identical clocks A and B in the same inertial frame are stationary relative to each other a fixed distance L apart. Time passes at the same rate for both. 2. Both clocks are able to send/receive light signals and to write/read the send/receive times into signals. 3. The...
  6. J

    I Why measure the speed of light in one direction?

    My viewpoint is that for all inertial observers with Minkowski coordinates, Maxwell's equations posit the speed of light to be isotropic. But YES, I agree with your comments. Thank you.
  7. J

    I Why measure the speed of light in one direction?

    It may be shown from the equations of electromagnetism, by James Clerk Maxwell in the 1860’s, that the speed of light in the vacuum of free space is related to electric permittivity (ϵ) and magnetic permeability (μ) by the equation: c=1/√( μ ϵ ) . This value is a constant for the vacuum of...
  8. J

    I Quantum Entanglement and Synchronization

    Thank you all for your replies.
  9. J

    I Quantum Entanglement and Synchronization

    Evidently this has been proven possible. See the following article: Tang, BY., Tian, M., Chen, H. et al. Demonstration of 75 km-fiber quantum clock synchronization in quantum entanglement distribution network. EPJ Quantum Technol. 10, 50 (2023). https://doi.org/10.1140/epjqt/s40507-023-00207-9
  10. J

    I Quantum Entanglement and Synchronization

    Given two quantum entangled particles A and B, let each be located inside one of two identical clocks. Let each clock be set to zero time the instant either particle A or B is measured or changes state. Could this mechanism be utilized to synchronize the clocks?
  11. J

    A 1-Way Speed of Light

    I have Google searched for "Anderson's kappa" but not readily found. What specifically is it?
  12. J

    A 1-Way Speed of Light

    Very good points, thanks all of you for your comments. I know it took time out of your days to respond back to me, and I appreciate it. (I have learned along the way.) Thanks again. Live long and prosper.
  13. J

    A 1-Way Speed of Light

    I realize that assuming a radio wave travels at the speed of light in all directions to initiate synchronization of the clocks is a flaw in logic, since we are trying to prove light speed from A to B is the same as from B to A. That is why in my original post I was trying to avoid that flaw by...
  14. J

    A 1-Way Speed of Light

    PeroK wrote: two clocks on the space station would eventually show different times if their orbits are at slightly different radii. Ibix wrote: Your error is in (a) assuming that the clocks are initially synchronised, which is only true if the one way speed of light is the same in both...
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