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    <p>Chip,</p>
    <p><br>
    </p>
    <p>I also think that it is the easiest and most physical way to
      understand relativity in general and dilation in particular, if
      one assumes that there is an absolute frame of rest, and that the
      motion with respect to this frame causes (among other phenomena)
      dilation. But it is a specific property of relativity that every
      observer in any inertial frame can assume that his frame is the
      frame at rest. And in his observation the physical world behaves
      indeed as if his frame would be the absolute frame at rest.</p>
    <p><br>
    </p>
    <p>This sounds like a paradox at the first glance. But with a proper
      use of the Lorentz transformation it can be explained why it is
      this way. It is a bit of work to make these calculations, but it
      is possible and one may say that this work is a necessity to
      understand special relativity.</p>
    <p><br>
    </p>
    <p>Albrecht</p>
    <p><br>
    </p>
    <br>
    <div class="moz-cite-prefix">Am 06.07.2017 um 13:36 schrieb Chip
      Akins:<br>
    </div>
    <blockquote type="cite"
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        <p class="MsoNormal"><span style="font-family:"Times New
            Roman",serif">Hi Wolf<o:p></o:p></span></p>
        <p class="MsoNormal"><span style="font-family:"Times New
            Roman",serif"><o:p> </o:p></span></p>
        <p class="MsoNormal"><span style="font-family:"Times New
            Roman",serif">First, I want to say that I was not
            offended by any of John’s comments. It seems to me that John
            and I are both looking, for not just answers, but the
            correct answers.<o:p></o:p></span></p>
        <p class="MsoNormal"><span style="font-family:"Times New
            Roman",serif"><o:p> </o:p></span></p>
        <p class="MsoNormal"><span style="font-family:"Times New
            Roman",serif">Next, my thoughts are that a moving clock
            does slow, but not due to “relative” motion but rather due
            to absolute motion in the fixed frame of space.  I also feel
            that there is a quantifiable “frame dragging” of space
            surrounding massive objects. Which has a tendency to make
            motion seem more relative.<o:p></o:p></span></p>
        <p class="MsoNormal"><span style="font-family:"Times New
            Roman",serif"><o:p> </o:p></span></p>
        <p class="MsoNormal"><span style="font-family:"Times New
            Roman",serif">And lastly, I do not feel that the
            “observer” has any more to do with physics than interaction
            caused by observation. Interactions have the same kinds of
            results, whether caused by an observer, or some other
            circumstance.<o:p></o:p></span></p>
        <p class="MsoNormal"><span style="font-family:"Times New
            Roman",serif"><o:p> </o:p></span></p>
        <p class="MsoNormal"><span style="font-family:"Times New
            Roman",serif">Chip<o:p></o:p></span></p>
        <p class="MsoNormal"><span style="font-family:"Times New
            Roman",serif"><o:p> </o:p></span></p>
        <div>
          <div style="border:none;border-top:solid #E1E1E1
            1.0pt;padding:3.0pt 0in 0in 0in">
            <p class="MsoNormal"><b><span
style="font-size:11.0pt;font-family:"Calibri",sans-serif;color:windowtext">From:</span></b><span
style="font-size:11.0pt;font-family:"Calibri",sans-serif;color:windowtext">
                General
[<a class="moz-txt-link-freetext" href="mailto:general-bounces+chipakins=gmail.com@lists.natureoflightandparticles.org">mailto:general-bounces+chipakins=gmail.com@lists.natureoflightandparticles.org</a>]
                <b>On Behalf Of </b>Wolfgang Baer<br>
                <b>Sent:</b> Wednesday, July 05, 2017 11:24 PM<br>
                <b>To:</b> <a class="moz-txt-link-abbreviated" href="mailto:general@lists.natureoflightandparticles.org">general@lists.natureoflightandparticles.org</a><br>
                <b>Subject:</b> Re: [General] JW on STR twin Paradox<o:p></o:p></span></p>
          </div>
        </div>
        <p class="MsoNormal"><o:p> </o:p></p>
        <p>John and Chip:<o:p></o:p></p>
        <p><o:p> </o:p></p>
        <p>your discussions on the twin paradox resemble the one I am
          having with Albrecht in the sense of who is right. In this it
          is quite important to identify the SRT<o:p></o:p></p>
        <p>Einstein actually published from how it has morphed.
          Specifically the understanding that there is no paradox
          because both twins would understand the theory sufficiently to
          calculate results based upon their knowledge of physics ,
          which when "correctly" applied does not lead to a paradox, is
          in my opinion suspect.<o:p></o:p></p>
        <p><o:p> </o:p></p>
        <p>So I have gone to the Source: <o:p></o:p></p>
        <p class="MsoNormal"
style="mso-margin-top-alt:auto;mso-margin-bottom-alt:auto;margin-left:.5in;text-indent:-.5in">Einstein,
          A. (1905) “On the Electrodynamics of Moving Bodies”, <i>The
            Principle of Relativity; a collection of original memoirs on
            the special and general theory of relativity</i>, Edited by
          A Sommerfeld, Translated by W. Perrett and G. Jeffery, Dover
          Publications, p35-65 ISBN486-60081-5<o:p></o:p></p>
        <p>on page 49 he writes:" If one of two synchronous clocks at A
          is moved in a closed curve with constant velocity unitil it
          returnes to A, the journey lasting t seconds, then by the
          clock which has remained at rest the traveled clock on its
          arrival ast A will be 1/2 t v2/c2 slow. Hence we conclude that
          a balanced clock at the equator must go more slowly, by a very
          small amount than an otherwise similar clock situated at one
          of the poles under otherwise identical conditions.'<o:p></o:p></p>
        <p><o:p> </o:p></p>
        <p>If I read this statement it clearly tells me that Einstein
          meant the moving clock slows down simply because of its
          relative motion. No qualification is made about the
          acceleration or its relation to gravity. The reference to the
          north pole and equator was simply to provide an example of
          relative motion. I believe SRT and the clock slow down as
          Einstein presented it was intended to apply to any motion
          along a closed curve. Whether such a curve is produced by a
          gravitational orbit, a clock at the end of a string, or a
          spaceship. Therefore I conclude that a clock paradox was 
          built into SRT as Einstein proposed it, and I believe Einstein
          recognized this limitation  and began working on GRT because
          there are no closed curved trajectories without gravitation
          and/or acceleration at play. <o:p></o:p></p>
        <p><o:p> </o:p></p>
        <p>Until we nail down which SRT we are talking about both
          paradox and no paradox proponents can be right.<o:p></o:p></p>
        <p><o:p> </o:p></p>
        <p>best wishes<o:p></o:p></p>
        <p>wolf<o:p></o:p></p>
        <p><o:p> </o:p></p>
        <pre><o:p> </o:p></pre>
        <pre>Dr. Wolfgang Baer<o:p></o:p></pre>
        <pre>Research Director<o:p></o:p></pre>
        <pre>Nascent Systems Inc.<o:p></o:p></pre>
        <pre>tel/fax 831-659-3120/0432<o:p></o:p></pre>
        <pre>E-mail <a href="mailto:wolf@NascentInc.com" moz-do-not-send="true">wolf@NascentInc.com</a><o:p></o:p></pre>
        <div>
          <p class="MsoNormal">On 6/15/2017 6:38 PM, John Williamson
            wrote:<o:p></o:p></p>
        </div>
        <blockquote style="margin-top:5.0pt;margin-bottom:5.0pt">
          <div>
            <p class="MsoNormal" style="margin-bottom:12.0pt"><span
                style="font-size:10.0pt;font-family:"Tahoma",sans-serif">Dear
                Grahame,<br>
                <br>
                I'm pleased you enjoy the regular posts. I'm sorry you
                hear the "I am right" afterwards because my
                contributions here have been only on the interpretation
                of "physics as it stands". I did not say to Chip that he
                was "wrong", only that he was mistaken. What I would
                rather be (and I am sure Chip would too!), in fact is
                wrong. Precisely because then there is something to
                learn. I hope (and strongly believe, knowing him) that
                Chip is not offended. If he were I would apologise
                profusely!<br>
                <br>
                Neary all the interactions with this group discussion so
                far have been merely didactic. Wrong, indeed, on my part
                on many occasions, though not yet usefully wrong. Mine
                have been been silly mistakes, typos and, as Al put it
                once "shooting from the hip", mistakes so far. This is
                why several people who could have made proper
                contributions to this discussion, and have done so
                earlier, have simply given up on it as a waste of time
                and effort. this is not to say that face to face
                discussions with group memebers have not been useful. <br>
                <br>
                Remember I said "</span><span style="background:white">It
                is not really that one of us is "right" and the others
                are "wrong" or that we are all "wrong". What we are
                doing is, as Viv says, setting up a conceptual framework
                and then considering it faithfully (as faithfully as we
                can anyway) within those boundaries. What I am saying is
                that SR is in NO WAY a starting point, but is a simple
                derivative of deeper consideration. </span><span
                style="font-size:10.0pt;font-family:"Tahoma",sans-serif">"<br>
                <br>
                What I was asserting to Chip, within these limitations
                is that there is no logical contradiction within SR on
                the grounds he had put forwards, precisely because of
                the symmetry between the twins. I was further asserting
                that working within ANY mathematical framework limits
                you to that framework - and is hence a waste of time if
                one attempts to apply it to results outside that
                framework (such as the gravitational slowing of clocks
                in general relativity, for example). Any "contradiction"
                at this point is no such thing as the theory does not
                purport to say anything about that scenario, real or
                not. What I was NOT saying is that I thought SR, with
                all the modern connotations, was in some sense "true".
                It is far far too simple to be the whole story. Please
                read this properly!<br>
                <br>
                To go further, I also agree that, for any object in
                absolute motion w.r.t. to the universe as a whole there
                will be an additional (relativistic) mass, and hence
                gravitational field, that , just as is the case for any
                mass in any gravitational field, slows down the clocks.
                Clocks on earth run slower than clocks in space. Look at
                the current situation: you have now asserted that I was
                "wrong" on these grounds, when, in fact, there was no
                movement onto that ground whatsoever. There is
                absolutely no point in moving onto an argument in GR
                when one has problems at the level of SR. That will make
                one consider oneself kind of ok at the SR level, but
                only with problems at the GR level, which has not been
                the case here. <br>
                <br>
                This, and indeed GR considerations, does not alter the
                fact that any local clock, in a spaceship or on earth,
                if defined of light and by light, will always appear to
                the local observer to run exactly normally if in an
                inertial frame. This is because the local observer is
                defined by light and of light. Hence, no contradiction
                with SR either way. Also, the scenario I described at
                length last time, of the two spaceships blasting of in
                opposite directions with almost infinite initial
                acceleration (hance the unphysicality names), was purely
                on the grounds of SR. Since this already gives a near
                zero time for apparent travel to Vega any further
                slowing of clocks, while it would be present, is of no
                consequence further to the argument in the "twin
                paradox". Also, in my view, the apparent "clock slowing"
                in GR itself has a deeper reason anyway. Merely entering
                it as a GR effect of the local space is then also to
                take a good dose of the general Kool aid.<br>
                <br>
                What do you think I meant by "</span><span
                style="background:white">Maths can help you see, but
                maths can make you blind"? Remember I am not (yet, if
                ever) one of the "establishment". I wish I was, then I
                could go fishing.<br>
                <br>
                Regards, John W.<br>
                <br>
              </span><span
                style="font-size:10.0pt;font-family:"Tahoma",sans-serif"><o:p></o:p></span></p>
            <div>
              <div class="MsoNormal" style="text-align:center"
                align="center">
                <hr size="2" align="center" width="100%"></div>
              <div id="divRpF287362">
                <p class="MsoNormal" style="margin-bottom:12.0pt"><b><span
style="font-size:10.0pt;font-family:"Tahoma",sans-serif">From:</span></b><span
style="font-size:10.0pt;font-family:"Tahoma",sans-serif">
                    General [<a
href="mailto:general-bounces+john.williamson=glasgow.ac.uk@lists.natureoflightandparticles.org"
                      moz-do-not-send="true">general-bounces+john.williamson=glasgow.ac.uk@lists.natureoflightandparticles.org</a>]
                    on behalf of Dr Grahame Blackwell [<a
                      href="mailto:grahame@starweave.com"
                      moz-do-not-send="true">grahame@starweave.com</a>]<br>
                    <b>Sent:</b> Thursday, June 15, 2017 8:17 PM<br>
                    <b>To:</b> Nature of Light and Particles - General
                    Discussion<br>
                    <b>Subject:</b> Re: [General] JW on STR twin Paradox</span><o:p></o:p></p>
              </div>
              <div>
                <div>
                  <p class="MsoNormal"><span
style="font-size:10.0pt;font-family:"Arial",sans-serif;color:navy">John</span><o:p></o:p></p>
                </div>
                <div>
                  <p class="MsoNormal"> <o:p></o:p></p>
                </div>
                <div>
                  <p class="MsoNormal"><span
style="font-size:10.0pt;font-family:"Arial",sans-serif;color:navy">Perversely,
                      I always enjoy your regular assertions to others
                      of: "You are mistaken", or "You are wrong" - which
                      of course carries the unspoken follow-on of "and I
                      am right".</span><o:p></o:p></p>
                </div>
                <div>
                  <p class="MsoNormal"> <o:p></o:p></p>
                </div>
                <div>
                  <p class="MsoNormal"><span
style="font-size:10.0pt;font-family:"Arial",sans-serif;color:navy">I
                      really feel that, to redress the balance somewhat,
                      I need to say "No, John, YOU are mistaken (IMO)".</span><o:p></o:p></p>
                </div>
                <div>
                  <p class="MsoNormal"> <o:p></o:p></p>
                </div>
                <div>
                  <p class="MsoNormal"><span
style="font-size:10.0pt;font-family:"Arial",sans-serif;color:navy">This
                      is not to say that I agree with Chip's
                      interpretation of the 'circling twins' scenario:
                      for me, even though I am 100% persuaded that there
                      IS a unique objective universal rest-state - a
                      unique objectively static (in universal terms)
                      reference frame - SRT very adequately explains
                      that scenario without any paradox, apparent or
                      otherwise.  Each twin, on believing themself to be
                      at rest, will also consider themself to be subject
                      to a gravitational field that exactly parallels
                      the perceived state of motion of their other twin;
                      they will therefore expect their
                      'gravitationally-affected' clock to be slowed to a
                      corresponding degree that they see as their twin's
                      slowed time-sense.  No paradox in the maths of
                      SRT.</span><o:p></o:p></p>
                </div>
                <div>
                  <p class="MsoNormal"> <o:p></o:p></p>
                </div>
                <div>
                  <p class="MsoNormal"><span
style="font-size:10.0pt;font-family:"Arial",sans-serif;color:navy">No,
                      my "You are mistaken" relates to your assertion
                      that time is not running slower in either ship. 
                      From the perspective of photonically-generated
                      material particles, taken to its logical
                      conclusion - a unique objective universal
                      rest-state - there is a very cogent basis for
                      clocks NOT in that universal rest-frame to be
                      registering the passage of time more slowly than
                      one in that rest-frame.  This leads unequivocally
                      to objectively different rates of the passage of
                      time in different inertial frames.</span><o:p></o:p></p>
                </div>
                <div>
                  <p class="MsoNormal"> <o:p></o:p></p>
                </div>
                <div>
                  <p class="MsoNormal"><span
style="font-size:10.0pt;font-family:"Arial",sans-serif;color:navy">This
                      is a totally different issue from whether or not
                      SRT is internally self-consistent: a model can be
                      perfectly self-consistent without being a true
                      representation of any physical reality; indeed, a
                      model can be 100% self-consistent AND bear a
                      remarkable similarity to general perception of
                      physical reality without being an objectively true
                      representation of same.  As the semanticist Alford
                      Korzybski famously observed: "The map is not the
                      territory; however, to the degree that the map
                      reflects observed reality, to that degree it may
                      prove useful".  This is unquestionably true of
                      SRT.</span><o:p></o:p></p>
                </div>
                <div>
                  <p class="MsoNormal"> <o:p></o:p></p>
                </div>
                <div>
                  <p class="MsoNormal"><span
style="font-size:10.0pt;font-family:"Arial",sans-serif;color:navy">Another
                      quote that seems higly relevant, this time from
                      Mark Twain: "Whenever you find yourself on the
                      side of the majority, it is time to pause and
                      reflect".  Of course this is in no way a
                      denigration per se of those adopting the majority
                      view- but it IS very definitely saying "Just
                      because something is believed by a majority - even
                      a very significant majority - doesn't mean that
                      it's correct".  (Another quote I saw some time
                      back , but cannot now re-trace the source, from a
                      notable and highly respected physicist: "We're all
                      drinking the same Kool-ade" - I leave you to
                      figure how that's relevant.)</span><o:p></o:p></p>
                </div>
                <div>
                  <p class="MsoNormal"> <o:p></o:p></p>
                </div>
                <div>
                  <p class="MsoNormal"><span
style="font-size:10.0pt;font-family:"Arial",sans-serif;color:navy">Best
                      regards,</span><o:p></o:p></p>
                </div>
                <div>
                  <p class="MsoNormal"><span
style="font-size:10.0pt;font-family:"Arial",sans-serif;color:navy">Grahame</span><o:p></o:p></p>
                </div>
                <div>
                  <p class="MsoNormal"> <o:p></o:p></p>
                </div>
                <div>
                  <p class="MsoNormal"> <o:p></o:p></p>
                </div>
                <blockquote style="border:none;border-left:solid navy
                  1.5pt;padding:0in 0in 0in
4.0pt;margin-left:3.75pt;margin-top:5.0pt;margin-right:0in;margin-bottom:5.0pt">
                  <div>
                    <p class="MsoNormal"><span
                        style="font-size:10.0pt;font-family:"Arial",sans-serif">-----
                        Original Message ----- <o:p></o:p></span></p>
                  </div>
                  <div>
                    <p class="MsoNormal" style="background:#E4E4E4"><b><span
style="font-size:10.0pt;font-family:"Arial",sans-serif">From:</span></b><span
style="font-size:10.0pt;font-family:"Arial",sans-serif"> <a
                          href="mailto:John.Williamson@glasgow.ac.uk"
                          target="_blank"
                          title="John.Williamson@glasgow.ac.uk"
                          moz-do-not-send="true">John Williamson</a> <o:p></o:p></span></p>
                  </div>
                  <div>
                    <p class="MsoNormal"><b><span
                          style="font-size:10.0pt;font-family:"Arial",sans-serif">To:</span></b><span
style="font-size:10.0pt;font-family:"Arial",sans-serif"> <a
                          href="mailto:general@lists.natureoflightandparticles.org"
                          target="_blank"
                          title="general@lists.natureoflightandparticles.org"
                          moz-do-not-send="true">Nature of Light and
                          Particles - General Discussion</a> <o:p></o:p></span></p>
                  </div>
                  <div>
                    <p class="MsoNormal"><b><span
                          style="font-size:10.0pt;font-family:"Arial",sans-serif">Cc:</span></b><span
style="font-size:10.0pt;font-family:"Arial",sans-serif"> <a
                          href="mailto:darren@makemeafilm.com"
                          target="_blank" title="darren@makemeafilm.com"
                          moz-do-not-send="true">Darren Eggenschwiler</a>
                        ; <a href="mailto:ariane.mandray@wanadoo.fr"
                          target="_blank"
                          title="ariane.mandray@wanadoo.fr"
                          moz-do-not-send="true">Ariane Mandray</a> ; <a
                          href="mailto:martin.van.der.mark@philips.com"
                          target="_blank"
                          title="martin.van.der.mark@philips.com"
                          moz-do-not-send="true">Mark,Martin van der</a>
                        ; <a href="mailto:innes.morrison@cocoon.life"
                          target="_blank"
                          title="innes.morrison@cocoon.life"
                          moz-do-not-send="true">Innes Morrison</a> <o:p></o:p></span></p>
                  </div>
                  <div>
                    <p class="MsoNormal"><b><span
                          style="font-size:10.0pt;font-family:"Arial",sans-serif">Sent:</span></b><span
style="font-size:10.0pt;font-family:"Arial",sans-serif">
                        Thursday, June 15, 2017 6:30 PM<o:p></o:p></span></p>
                  </div>
                  <div>
                    <p class="MsoNormal"><b><span
                          style="font-size:10.0pt;font-family:"Arial",sans-serif">Subject:</span></b><span
style="font-size:10.0pt;font-family:"Arial",sans-serif"> Re:
                        [General] STR twin Paradox<o:p></o:p></span></p>
                  </div>
                  <div>
                    <p class="MsoNormal"><span
                        style="font-family:"Times New
                        Roman",serif"><o:p> </o:p></span></p>
                  </div>
                  <div>
                    <div>
                      <p class="MsoNormal"> <o:p></o:p></p>
                      <p class="MsoNormal">No Chip you are mistaken. <br>
                        <br>
                        Time is not running "slower" in either ship. It
                        is only the perception of time that differs. It
                        is a common misconception in relativity that
                        "clocks slow down". The fact that the
                        misconception is widely believed and widely
                        quoted does not make it more true. Both folk in
                        both spaceships should know this and should be
                        able to calculate exactly what  the other
                        observes. Pretty simple really as it is wholly
                        symmetric.<br>
                        <br>
                        In(general covariant) relativity, the point is
                        that each inertial observer considers their
                        frame "stationary". In fact every observer can
                        be aware of their motion w.r.t. the cosmic
                        microwave background, so there is an absolute
                        frame -obviously. This is not, however, the
                        purview of special relativity which deals with,
                        in its simplest form, only space and time and
                        velocity, I say "in its simplest form" because
                        many folk move the line as to what "special
                        relativity" is. The fact there is clearly a
                        given frame, the CMB does not contradict general
                        covariance. In a slightly more extended
                        relativity, some would go for the Lorentz group
                        (which contains rotations and boosts). It
                        matters little, if you put yourself inside any
                        mathematical box (including the concept of
                        general covariance!) you can only say things
                        about the situation in the box, and can not even
                        describe the boundaries of the box
                        (Wittgenstein, Godel). To try then to talk about
                        things outside the box is simply meaningless,
                        and a complete and utter waste of time. <o:p></o:p></p>
                      <p class="MsoNormal"><o:p> </o:p></p>
                      <p class="MsoNormal">Looking at this conversation
                        going past I have agreed with most of what some
                        folk have said (Viv, Grahame and Al, for
                        example), but I know that we all differ at some
                        level on this (ref my earlier conversation with
                        Al, for example). It is not really that one of
                        us is "right" and the others are "wrong" or that
                        we are all "wrong". What we are doing is, as Viv
                        says, setting up a conceptual framework and then
                        considering it faithfully (as faithfully as we
                        can anyway) within those boundaries. What I am
                        saying is that SR is in NO WAY a starting point,
                        but is a simple derivative of deeper
                        consideration. These deeper considerations have
                        a multitude of possibilities, only one of which
                        is the concept of "general covariance", which is
                        what we are talking about. For example, my
                        derivation of SR has nothing at all to do with
                        general covariance. It looks at the properties
                        of self-confined mass-light. It is another
                        starting point, one of very many, which also
                        gives SR as a consequence. Always a consequence.
                        Never a starting point. SR is not a scientific
                        “holy cow”, it is more a scientific pint of
                        pasteurized, homogenized milk from an
                        international set of cows, mostly non-holy.  I
                        would appeal to everyone to put this
                        conversation to bed as it is neither useful nor
                        decorative and, go and make a nice hot cup of
                        tea (or a glass of warm milk).<o:p></o:p></p>
                      <p class="MsoNormal"> <o:p></o:p></p>
                      <p class="MsoNormal">Proving SR true within its
                        realm of validity (likely) or even false in some
                        experiment is anyway of very little consequence
                        for the maths of SR itself, which will prove to
                        be a limiting case anyway. If one gets a "false"
                        where there is gravity and/or acceleration, for
                        example has reference only to the super-theory,
                        as SR does not make any claims to include
                        acceleration or gravitation. When I say that to
                        understand it you need to step outside SR and
                        consider (at least) acceleration, I am talking
                        about understanding the (maths) box. Remember
                        that this is a box of ones own creation. Maths
                        is just marks on paper one makes up. It is the
                        physics and the understanding that counts. Maths
                        can help you see, but maths can make you blind.<br>
                        <br>
                        Coming back to the physics, personally, I do not
                        think acceleration alone cuts this although this
                        is vital to getting the so-called "paradox". I
                        think one needs to look at energy conservation
                        and the very mechanism of the generation of the
                        universe (itself a zero-energy system) and the
                        way in which the elementary processes cause this
                        to come into being to make any real progress.<br>
                        <br>
                        In short I think the whole conversation has been
                        a complete waste of time in making any actual
                        progress, as all the examples brought up have
                        been long-considered, but has perhaps been
                        useful in getting people to think further.<o:p></o:p></p>
                      <p class="MsoNormal"> <o:p></o:p></p>
                      <p class="MsoNormal"><br>
                        Regards to all, John W.<o:p></o:p></p>
                      <p class="MsoNormal"><o:p> </o:p></p>
                      <p class="MsoNormal"><span style="color:blue">I
                          will go blue below</span><o:p></o:p></p>
                      <p class="MsoNormal" style="margin-bottom:12.0pt"><span
style="font-size:10.0pt;font-family:"Tahoma",sans-serif"><br>
                          <br>
                          <o:p></o:p></span></p>
                      <div>
                        <div class="MsoNormal" style="text-align:center"
                          align="center"><span
                            style="font-family:"Times New
                            Roman",serif">
                            <hr size="2" align="center" width="100%"></span></div>
                        <div id="divRpF312942">
                          <p class="MsoNormal"
                            style="margin-bottom:12.0pt"><b><span
                                style="font-size:10.0pt;font-family:"Tahoma",sans-serif">From:</span></b><span
style="font-size:10.0pt;font-family:"Tahoma",sans-serif">
                              General [<a
href="mailto:general-bounces+john.williamson=glasgow.ac.uk@lists.natureoflightandparticles.org"
                                moz-do-not-send="true">general-bounces+john.williamson=glasgow.ac.uk@lists.natureoflightandparticles.org</a>]
                              on behalf of Chip Akins [<a
                                href="mailto:chipakins@gmail.com"
                                moz-do-not-send="true">chipakins@gmail.com</a>]<br>
                              <b>Sent:</b> Thursday, June 15, 2017 3:52
                              PM<br>
                              <b>To:</b> 'Nature of Light and Particles
                              - General Discussion'<br>
                              <b>Subject:</b> Re: [General] STR twin
                              Paradox</span><span
                              style="font-family:"Times New
                              Roman",serif"><o:p></o:p></span></p>
                        </div>
                        <div>
                          <div>
                            <p class="MsoNormal">Hi John<o:p></o:p></p>
                            <p class="MsoNormal"> <o:p></o:p></p>
                            <p class="MsoNormal">You are absolutely
                              right regarding rotations, and the need
                              for a more complete theory as in General
                              relativity to describe them.<o:p></o:p></p>
                            <p class="MsoNormal"> <o:p></o:p></p>
                            <p class="MsoNormal">However, the point of
                              my thought experiment was to take a look
                              at a specific aspect of Special
                              Relativity.<o:p></o:p></p>
                            <p class="MsoNormal"> <o:p></o:p></p>
                            <p class="MsoNormal">The concept in Special
                              Relativity that all motion is relative is
                              logically flawed.<o:p></o:p></p>
                            <p class="MsoNormal"> <o:p></o:p></p>
                            <p class="MsoNormal">Let me pose a modified
                              thought experiment to illustrate.<o:p></o:p></p>
                            <p class="MsoNormal"> <o:p></o:p></p>
                            <p class="MsoNormal">Our experiment begins
                              with all the following conditions in
                              place…<o:p></o:p></p>
                            <p class="MsoNormal"> <o:p></o:p></p>
                            <p class="MsoNormal">Spaceship A thinks it
                              is stationary (not moving) in space,
                              Spaceship A views Spaceship B approaching
                              at a highly relativistic speed.  Spaceship
                              B thinks it is stationary and thinks that
                              Spaceship A is approaching at the same
                              highly relativistic speed. When the
                              Spaceships are 1 light year apart they
                              both transmit their reference time (and
                              date). When Spaceship B passes very close
                              to Spaceship A they again both transmit
                              their time and date.<o:p></o:p></p>
                            <p class="MsoNormal"> <o:p></o:p></p>
                            <p class="MsoNormal">During the experiment
                              there is no acceleration applied to either
                              spaceship.<o:p></o:p></p>
                            <p class="MsoNormal"> <o:p></o:p></p>
                            <p class="MsoNormal">Receivers are set up to
                              record the time and date information (and
                              are tuned to accommodate any blue shift
                              from either spaceship).<o:p></o:p></p>
                            <p class="MsoNormal"> <o:p></o:p></p>
                            <p class="MsoNormal">The receivers are
                              adjacent to Spaceship A just for an
                              example.<o:p></o:p></p>
                            <p class="MsoNormal"> <o:p></o:p></p>
                            <p class="MsoNormal">If in fact Spaceship B
                              is the moving ship, the signal transmitted
                              1 light year before the ships pass each
                              other, will arrive at the receiver
                              Adjacent to A moments before Spaceship B
                              passes Spaceship A.<o:p></o:p></p>
                            <p class="MsoNormal"><o:p> </o:p></p>
                            <p class="MsoNormal"><span
                                style="color:blue">Good so far</span><o:p></o:p></p>
                            <p class="MsoNormal"> <o:p></o:p></p>
                            <p class="MsoNormal">In this situation
                              Spaceship A expects Spaceship B time to be
                              running slower. And Spaceship B expects
                              Spaceship A time to be running slower. <o:p></o:p></p>
                            <p class="MsoNormal"><o:p> </o:p></p>
                            <p class="MsoNormal"><span
                                style="color:blue"><br>
                                This is where you go into the mist. No.
                                Both expect each others time to be
                                running normally.</span><o:p></o:p></p>
                            <p class="MsoNormal"><o:p> </o:p></p>
                            <p class="MsoNormal">If all motion is
                              relative this is what they MUST expect.<o:p></o:p></p>
                            <p class="MsoNormal"><o:p> </o:p></p>
                            <p class="MsoNormal"><span
                                style="color:blue">No - precisely the
                                opposite. If all is relative they must
                                expect the situation to be EXACTLY
                                SYMMETRIC, as it is.</span><o:p></o:p></p>
                            <p class="MsoNormal"><o:p> </o:p></p>
                            <p class="MsoNormal"><o:p> </o:p></p>
                            <p class="MsoNormal"> <o:p></o:p></p>
                            <p class="MsoNormal">But those two outcomes
                              are mutually exclusive, so logically, all
                              motion is NOT relative.  <o:p></o:p></p>
                            <p class="MsoNormal"><o:p> </o:p></p>
                            <p class="MsoNormal"><span
                                style="color:blue">No the two outcomes
                                are exactly the same, as one must
                                expect.</span><o:p></o:p></p>
                            <p class="MsoNormal"> <o:p></o:p></p>
                            <p class="MsoNormal">If we feel all motion
                              is relative then there is a logical error
                              in our theoretical basis.<o:p></o:p></p>
                            <p class="MsoNormal"> <o:p></o:p></p>
                            <p class="MsoNormal"> <o:p></o:p></p>
                            <p class="MsoNormal">Chip<o:p></o:p></p>
                            <p class="MsoNormal"> <o:p></o:p></p>
                          </div>
                        </div>
                      </div>
                    </div>
                  </div>
                </blockquote>
              </div>
            </div>
          </div>
          <p class="MsoNormal"><span style="font-family:"Times New
              Roman",serif"><br>
              <br>
              <br>
              <o:p></o:p></span></p>
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        <p class="MsoNormal"><span style="font-family:"Times New
            Roman",serif"><o:p> </o:p></span></p>
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