Recent content by GRQFT

  1. G

    High School What Medium Does Light Travel Through in Space?

    In the paper you reference, it says: Casimir effect: Force between macroscopic bodies due to alteration of vacuum fluctuations by boundary conditions. I'm confused why you would cite that one to support your claim that "The whole issue of virtual particles and vacuum fluctuations being real is...
  2. G

    High School What Medium Does Light Travel Through in Space?

    Okay, I think this is a good point for me to stop and say thank you to all who have contributed to this discussion. Cheers...
  3. G

    High School What Medium Does Light Travel Through in Space?

    Sorry, I hit the return key before I finished typing.
  4. G

    High School What Medium Does Light Travel Through in Space?

    And what type of experiment would we do to make that determination?
  5. G

    High School What Medium Does Light Travel Through in Space?

    Is it not tied to a measurement of the time it takes to travel a meter? Source: Speed of light
  6. G

    High School What Medium Does Light Travel Through in Space?

    Okay, I very quickly skimmed the article you referenced, so maybe I missed the point relevant to the current discussion, but are you saying that we can drop Einstein's postulate that c will always have the same measured value and still arrive at SR, and that, in turn, means that c is somehow...
  7. G

    High School What Medium Does Light Travel Through in Space?

    And so if I wanted to calculate the value of c using the spacetime interval (above), I would have to make three spatial measurements and one temporal measurement? Again, if I want to obtain a numerical value for c using the equation you supplied (which contains the variables E and v), I would...
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    High School What Medium Does Light Travel Through in Space?

    My understanding of natural units is that these "...systems simplify the form of each equation, [though] it is still necessary to keep track of the non-collapsed dimensions of each quantity or expression in order to reinsert physical constants (such dimensions uniquely determine the full...
  9. G

    High School What Medium Does Light Travel Through in Space?

    And how does that relate to the geometry of spacetime? Which requires a measurement of the E (hv) of a photon.
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    High School What Medium Does Light Travel Through in Space?

    I just visited the NIST website and found the diagram below. This is how they describe c: And this is their list of the seven "base SI units" Perhaps they were being sloppy with their choice of words, but in the figure caption they describe these seven base SI units as "fundamental...
  11. G

    High School What Medium Does Light Travel Through in Space?

    So, presumably we can obtain a value for c from GR. Do you happen to know the relevant equation? And so how would we calculate c by this approach?
  12. G

    High School What Medium Does Light Travel Through in Space?

    Yes, of course there is only one perpendicular angle. That was not my point. What I was arguing is that there are an infinite number of angles to choose from within the 2pi range. In contrast, there is only one c. I could easily choose 180 degrees and argue a one-to-one mapping with c. Or 54...