• Oh my God!

    From Richard Hachel@21:1/5 to All on Wed Sep 25 00:27:09 2024
    I stumbled upon this on Wikipedia...

    I don't know whether to laugh or cry...

    Did you see where Minkowski places his simultaneity plans?

    But that's not it!!!

    That's not it AT ALL!!!

    <http://nemoweb.net/jntp?Ev7wMrtKlxguxDn1RDUke8-o3Zo@jntp/Data.Media:1>

    With a huge dust under the carpet right in the middle (the stupid time-gap
    of physicists).

    It's depressing.

    R.H.

    --- SoupGate-Win32 v1.05
    * Origin: fsxNet Usenet Gateway (21:1/5)
  • From The Starmaker@21:1/5 to Richard Hachel on Tue Sep 24 20:10:44 2024
    Richard Hachel wrote:

    I stumbled upon this on Wikipedia...


    Oh my God, where's the Wikipedia link????




    I don't know whether to laugh or cry...

    Did you see where Minkowski places his simultaneity plans?

    But that's not it!!!

    That's not it AT ALL!!!

    <http://nemoweb.net/jntp?Ev7wMrtKlxguxDn1RDUke8-o3Zo@jntp/Data.Media:1>


    you don't expect people to click on dat link, do you?? First you have to
    find a url cleaning link for trojans and viruses..


    why bother

    Just post the Wikipedia link.


    With a huge dust under the carpet right in the middle (the stupid time-gap
    of physicists).

    It's depressing.

    R.H.

    --
    The Starmaker -- To question the unquestionable, ask the unaskable,
    to think the unthinkable, mention the unmentionable, say the unsayable,
    and challenge the unchallengeable.

    --- SoupGate-Win32 v1.05
    * Origin: fsxNet Usenet Gateway (21:1/5)
  • From Athel Cornish-Bowden@21:1/5 to Richard Hachel on Wed Sep 25 12:28:12 2024
    On 2024-09-25 00:27:09 +0000, Richard Hachel said:

    I stumbled upon this on Wikipedia...

    I don't know whether to laugh or cry...

    Did you see where Minkowski places his simultaneity plans?

    But that's not it!!!

    That's not it AT ALL!!!

    <http://nemoweb.net/jntp?Ev7wMrtKlxguxDn1RDUke8-o3Zo@jntp/Data.Media:1>

    That's clearly not Minkowski's diagram (did he have suitable drawing
    software in the 19th century?), but someone's interpretation of it. I
    hope you're not adopting Thomas Heger's habit of lying about who wrote
    what.

    With a huge dust under the carpet right in the middle (the stupid
    time-gap of physicists).

    It's depressing.

    --
    athel -- biochemist, not a physicist, but detector of crackpots

    --- SoupGate-Win32 v1.05
    * Origin: fsxNet Usenet Gateway (21:1/5)
  • From gharnagel@21:1/5 to Athel Cornish-Bowden on Wed Sep 25 15:34:35 2024
    On Wed, 25 Sep 2024 10:28:12 +0000, Athel Cornish-Bowden wrote:

    On 2024-09-25 00:27:09 +0000, Richard Hachel said:

    I stumbled upon this on Wikipedia...

    I don't know whether to laugh or cry...

    Did you see where Minkowski places his simultaneity plans?

    But that's not it!!!

    That's not it AT ALL!!!


    <http://nemoweb.net/jntp?Ev7wMrtKlxguxDn1RDUke8-o3Zo@jntp/Data.Media:1>

    That's clearly not Minkowski's diagram (did he have suitable drawing
    software in the 19th century?), but someone's interpretation of it. I
    hope you're not adopting Thomas Heger's habit of lying about who wrote
    what.

    With a huge dust under the carpet right in the middle (the stupid
    time-gap of physicists).

    It's depressing.

    --
    athel -- biochemist, not a physicist, but detector of crackpots

    Actually, it might be correct. Contrary to what Hachel wrote, there
    is no "gap." The presumption in the figure is that the velocities
    going and returning are constant with an infinite deceleration at
    the turning point. Realistically, the deceleration would be finite. Consequently, the simultaneous line would move smoothly from the
    point intersecting the vertical line and the upper blue line to a
    horizontal line between the turning point and the vertical line
    (representing "home"). As the ship began its return journey, the
    simultaneous line would move up to the lower red line as depicted.
    The movement through the gap can be as swift as desired (a particle
    in an accelerator encountering a target would have a very fast
    deceleration, but still not infinite).

    --- SoupGate-Win32 v1.05
    * Origin: fsxNet Usenet Gateway (21:1/5)
  • From Athel Cornish-Bowden@21:1/5 to gharnagel on Wed Sep 25 17:57:46 2024
    On 2024-09-25 15:34:35 +0000, gharnagel said:

    On Wed, 25 Sep 2024 10:28:12 +0000, Athel Cornish-Bowden wrote:

    On 2024-09-25 00:27:09 +0000, Richard Hachel said:

    I stumbled upon this on Wikipedia...

    I don't know whether to laugh or cry...

    Did you see where Minkowski places his simultaneity plans?

    But that's not it!!!

    That's not it AT ALL!!!


    <http://nemoweb.net/jntp?Ev7wMrtKlxguxDn1RDUke8-o3Zo@jntp/Data.Media:1>

    That's clearly not Minkowski's diagram (did he have suitable drawing
    software in the 19th century?), but someone's interpretation of it. I
    hope you're not adopting Thomas Heger's habit of lying about who wrote
    what.

    With a huge dust under the carpet right in the middle (the stupid
    time-gap of physicists).

    It's depressing.

    --
    athel -- biochemist, not a physicist, but detector of crackpots

    Actually, it might be correct.

    Yes, but it's still not something drawn by Minkovski.

    Contrary to what Hachel wrote, there
    is no "gap." The presumption in the figure is that the velocities
    going and returning are constant with an infinite deceleration at
    the turning point. Realistically, the deceleration would be finite. Consequently, the simultaneous line would move smoothly from the
    point intersecting the vertical line and the upper blue line to a
    horizontal line between the turning point and the vertical line
    (representing "home"). As the ship began its return journey, the simultaneous line would move up to the lower red line as depicted.
    The movement through the gap can be as swift as desired (a particle
    in an accelerator encountering a target would have a very fast
    deceleration, but still not infinite).


    --
    athel -- biochemist, not a physicist, but detector of crackpots

    --- SoupGate-Win32 v1.05
    * Origin: fsxNet Usenet Gateway (21:1/5)
  • From Maciej Wozniak@21:1/5 to All on Wed Sep 25 18:03:45 2024
    W dniu 25.09.2024 o 17:34, gharnagel pisze:
    On Wed, 25 Sep 2024 10:28:12 +0000, Athel Cornish-Bowden wrote:

    On 2024-09-25 00:27:09 +0000, Richard Hachel said:

    I stumbled upon this on Wikipedia...

    I don't know whether to laugh or cry...

    Did you see where Minkowski places his simultaneity plans?

    But that's not it!!!

    That's not it AT ALL!!!


    <http://nemoweb.net/jntp?Ev7wMrtKlxguxDn1RDUke8-o3Zo@jntp/Data.Media:1>

    That's clearly not Minkowski's diagram (did he have suitable drawing
    software in the 19th century?), but someone's interpretation of it. I
    hope you're not adopting Thomas Heger's habit of lying about who wrote
    what.

    With a huge dust under the carpet right in the middle (the stupid
    time-gap of physicists).

    It's depressing.

    --
    athel -- biochemist, not a physicist, but detector of crackpots

    Actually, it might be correct.  Contrary to what Hachel wrote, there
    is no "gap."  The presumption in the figure is that the velocities
    going and returning are constant with an infinite deceleration at
    the turning point.  Realistically, the deceleration would be finite. Consequently, the simultaneous line would move smoothly from the
    point intersecting the vertical line and the upper blue line to a
    horizontal line between the turning point and the vertical line


    Consequently - The Shit of your idiot guru
    provides no consistent concept of simultaneity.

    --- SoupGate-Win32 v1.05
    * Origin: fsxNet Usenet Gateway (21:1/5)
  • From The Starmaker@21:1/5 to Athel Cornish-Bowden on Wed Sep 25 09:42:04 2024
    Athel Cornish-Bowden wrote:

    On 2024-09-25 00:27:09 +0000, Richard Hachel said:

    I stumbled upon this on Wikipedia...

    I don't know whether to laugh or cry...

    Did you see where Minkowski places his simultaneity plans?

    But that's not it!!!

    That's not it AT ALL!!!

    <http://nemoweb.net/jntp?Ev7wMrtKlxguxDn1RDUke8-o3Zo@jntp/Data.Media:1>

    That's clearly not Minkowski's diagram (did he have suitable drawing
    software in the 19th century?), but someone's interpretation of it. I
    hope you're not adopting Thomas Heger's habit of lying about who wrote
    what.


    I don't know who Minkowski is but he probably used pirated
    Inkscape..software.


    https://commons.wikimedia.org/wiki/File:Twin_Paradox_Minkowski_Diagram.svg

    This diagram was created with Inkscape.


    anybody got a crack?





    With a huge dust under the carpet right in the middle (the stupid
    time-gap of physicists).

    It's depressing.

    --
    athel -- biochemist, not a physicist, but detector of crackpots




    --
    The Starmaker -- To question the unquestionable, ask the unaskable,
    to think the unthinkable, mention the unmentionable, say the unsayable,
    and challenge the unchallengeable.

    --- SoupGate-Win32 v1.05
    * Origin: fsxNet Usenet Gateway (21:1/5)
  • From gharnagel@21:1/5 to Maciej Wozniak on Wed Sep 25 23:17:30 2024
    On Wed, 25 Sep 2024 16:03:45 +0000, Maciej Wozniak wrote:

    W dniu 25.09.2024 o 17:34, gharnagel pisze:

    Actually, it might be correct.  Contrary to what Hachel wrote, there
    is no "gap."  The presumption in the figure is that the velocities
    going and returning are constant with an infinite deceleration at
    the turning point.  Realistically, the deceleration would be finite. Consequently, the simultaneous line would move smoothly from the
    point intersecting the vertical line and the upper blue line to a horizontal line between the turning point and the vertical line

    Consequently - The Shit of your idiot guru
    provides no consistent concept of simultaneity.

    A lie, perpetrated by Wozniak the coprophiliac.

    --- SoupGate-Win32 v1.05
    * Origin: fsxNet Usenet Gateway (21:1/5)
  • From Maciej Wozniak@21:1/5 to All on Thu Sep 26 04:07:15 2024
    W dniu 26.09.2024 o 01:17, gharnagel pisze:
    On Wed, 25 Sep 2024 16:03:45 +0000, Maciej Wozniak wrote:

    W dniu 25.09.2024 o 17:34, gharnagel pisze:

    Actually, it might be correct.  Contrary to what Hachel wrote, there
    is no "gap."  The presumption in the figure is that the velocities
    going and returning are constant with an infinite deceleration at
    the turning point.  Realistically, the deceleration would be finite.
    Consequently, the simultaneous line would move smoothly from the
    point intersecting the vertical line and the upper blue line to a
    horizontal line between the turning point and the vertical line

    Consequently - The Shit of your idiot guru
    provides no consistent concept of simultaneity.

    A lie, perpetrated by Wozniak the coprophiliac.

    A simple test for a Harnagel - well known
    lyng piece of shit. You have an event
    e1 on Earth surface and e2 on Mars.
    How do you determine whether e1, e2
    are simultaneous? You as you - you're
    the observer.
    Lies still have short legs, poor trash.

    --- SoupGate-Win32 v1.05
    * Origin: fsxNet Usenet Gateway (21:1/5)
  • From Thomas Heger@21:1/5 to All on Thu Sep 26 08:25:13 2024
    Am Mittwoch000025, 25.09.2024 um 12:28 schrieb Athel Cornish-Bowden:
    On 2024-09-25 00:27:09 +0000, Richard Hachel said:

    I stumbled upon this on Wikipedia...

    I don't know whether to laugh or cry...

    Did you see where Minkowski places his simultaneity plans?

    But that's not it!!!

    That's not it AT ALL!!!

    <http://nemoweb.net/jntp?Ev7wMrtKlxguxDn1RDUke8-o3Zo@jntp/Data.Media:1>

    That's clearly not Minkowski's diagram (did he have suitable drawing
    software in the 19th century?), but someone's interpretation of it. I
    hope you're not adopting Thomas Heger's habit of lying about who wrote
    what.

    this wasn't my diagram, but looks actually correct.

    My own explanation for the so called twin paradox was a bit similar, but
    based on the idea, that acceleration causes the relativistic effects and
    not velocity.

    Such a travel would cause a situation, where a spaceship gets
    accelerated from - say- Earth, to reach a certain travel velocity to a
    distant star and a planet there.

    Then the spaceship gets decelerated in order to land there.

    Then the spaceship starts from there, travels back to Earth and needs to decelerate here.

    This requires four instances of acceleration (two positive and two
    negative), which should cancel the effect.


    ...

    TH

    --- SoupGate-Win32 v1.05
    * Origin: fsxNet Usenet Gateway (21:1/5)
  • From Mikko@21:1/5 to Richard Hachel on Thu Sep 26 12:14:18 2024
    On 2024-09-25 00:27:09 +0000, Richard Hachel said:

    I stumbled upon this on Wikipedia...

    I don't know whether to laugh or cry...

    Did you see where Minkowski places his simultaneity plans?

    But that's not it!!!

    That's not it AT ALL!!!

    <http://nemoweb.net/jntp?Ev7wMrtKlxguxDn1RDUke8-o3Zo@jntp/Data.Media:1>

    With a huge dust under the carpet right in the middle (the stupid
    time-gap of physicists).

    It's depressing.

    That is a good Minkowski diagram and shows correctly what is intended
    and claimed to be shown.

    --
    Mikko

    --- SoupGate-Win32 v1.05
    * Origin: fsxNet Usenet Gateway (21:1/5)
  • From gharnagel@21:1/5 to Athel Cornish-Bowden on Thu Sep 26 12:44:21 2024
    On Wed, 25 Sep 2024 15:57:46 +0000, Athel Cornish-Bowden wrote:

    On 2024-09-25 15:34:35 +0000, gharnagel said:

    Actually, it might be correct.

    Yes, but it's still not something drawn by Minkovski.


    It wasn't drawn by Einstein or Poincare, either. They're all
    dead. It is, however, a Minkowski diagram, and the simultaneity
    lines in the prime frame are defined by t = vx/c^2 + Constant
    going and negative slope returning, exactly as Minkowski would
    have drawn them.

    Contrary to what Hachel wrote, there
    is no "gap." The presumption in the figure is that the velocities
    going and returning are constant with an infinite deceleration at
    the turning point. Realistically, the deceleration would be finite. Consequently, the simultaneous line would move smoothly from the
    point intersecting the vertical line and the upper blue line to a horizontal line between the turning point and the vertical line (representing "home"). As the ship began its return journey, the simultaneous line would move up to the lower red line as depicted.
    The movement through the gap can be as swift as desired (a particle
    in an accelerator encountering a target would have a very fast deceleration, but still not infinite).

    --- SoupGate-Win32 v1.05
    * Origin: fsxNet Usenet Gateway (21:1/5)
  • From Richard Hachel@21:1/5 to All on Thu Sep 26 13:09:06 2024
    Le 26/09/2024 à 11:14, Mikko a écrit :
    On 2024-09-25 00:27:09 +0000, Richard Hachel said:

    I stumbled upon this on Wikipedia...

    I don't know whether to laugh or cry...

    Did you see where Minkowski places his simultaneity plans?

    But that's not it!!!

    That's not it AT ALL!!!

    <http://nemoweb.net/jntp?Ev7wMrtKlxguxDn1RDUke8-o3Zo@jntp/Data.Media:1>

    With a huge dust under the carpet right in the middle (the stupid
    time-gap of physicists).

    It's depressing.

    That is a good Minkowski diagram and shows correctly what is intended
    and claimed to be shown.

    Mikko, you are very kind, but you have not yet understood everything about Hachel's genius (that's me).
    For now, nothing to shout about from the rooftops, even if all these
    horizontal lines of simultaneity are pretty and appreciable.

    <http://nemoweb.net/jntp?YCrJKATFWGzuC8qa90liz70ItqI@jntp/Data.Media:1>

    Wait, it's not over.
    Here, I'm just showing you the drawing and the vision of things for
    Terrence.
    I'm going to have to do the same drawing for Stella, and then, you're
    going to faint.
    I would be happy if you beat me to it, and do the same thing for Stella. Because then, it's going to be great Hachel, and real relativistic
    reasoning.

    R.H.

    --
    Ce message a été posté avec Nemo : <https://www.nemoweb.net/?DataID=YCrJKATFWGzuC8qa90liz70ItqI@jntp>

    --- SoupGate-Win32 v1.05
    * Origin: fsxNet Usenet Gateway (21:1/5)
  • From Richard Hachel@21:1/5 to All on Thu Sep 26 14:22:50 2024
    Le 26/09/2024 à 08:25, Thomas Heger a écrit :

    this wasn't my diagram, but looks actually correct.

    My own explanation for the so called twin paradox was a bit similar, but based on the idea, that acceleration causes the relativistic effects and
    not velocity.

    Such a travel would cause a situation, where a spaceship gets
    accelerated from - say- Earth, to reach a certain travel velocity to a distant star and a planet there.

    Then the spaceship gets decelerated in order to land there.

    Then the spaceship starts from there, travels back to Earth and needs to decelerate here.

    This requires four instances of acceleration (two positive and two
    negative), which should cancel the effect.


    ...

    TH

    Les accélérations n'ont rien à voir dans l'histoire.

    Leur seul intérêt est de faire changer de référentiel, c'est à dire,
    de CHRONOTROPIE et de métrique.

    Rien à voir avec ce qui se passe après.

    Car tout se passe APRES. Et dans les longs segments de vitesses relatives uniformes.

    Il ne faut pas se soucier des accélérations, elle ne sont que peu de
    choses sur peu de durées si l'on se concentre sur les temps totaux enregistrés.

    Le time-gap, je le répète, c'est de la poussière sous le tapis. Ca
    n'existe ni pour Terrence, ni pour Stella si l'on comprend bien ce que
    l'on est en train de définir.

    C'est de l'idéologie minkowskienne, ça.

    R.H.

    --- SoupGate-Win32 v1.05
    * Origin: fsxNet Usenet Gateway (21:1/5)
  • From Athel Cornish-Bowden@21:1/5 to gharnagel on Thu Sep 26 17:09:32 2024
    On 2024-09-26 12:44:21 +0000, gharnagel said:

    On Wed, 25 Sep 2024 15:57:46 +0000, Athel Cornish-Bowden wrote:

    On 2024-09-25 15:34:35 +0000, gharnagel said:

    Actually, it might be correct.

    Yes, but it's still not something drawn by Minkovski.


    It wasn't drawn by Einstein or Poincare, either. They're all
    dead. It is, however, a Minkowski diagram,

    No one sai it wasn't, but "Dr" Hachel's question was "Did you see where Minkowski places his simultaneity plans?" clearly indicating that he
    thinks Minkovski drew it.

    and the simultaneity
    lines in the prime frame are defined by t = vx/c^2 + Constant
    going and negative slope returning, exactly as Minkowski would
    have drawn them.

    Contrary to what Hachel wrote, there
    is no "gap." The presumption in the figure is that the velocities
    going and returning are constant with an infinite deceleration at
    the turning point. Realistically, the deceleration would be finite.
    Consequently, the simultaneous line would move smoothly from the
    point intersecting the vertical line and the upper blue line to a
    horizontal line between the turning point and the vertical line
    (representing "home"). As the ship began its return journey, the
    simultaneous line would move up to the lower red line as depicted.
    The movement through the gap can be as swift as desired (a particle
    in an accelerator encountering a target would have a very fast
    deceleration, but still not infinite).


    --
    athel -- biochemist, not a physicist, but detector of crackpots

    --- SoupGate-Win32 v1.05
    * Origin: fsxNet Usenet Gateway (21:1/5)
  • From Richard Hachel@21:1/5 to All on Thu Sep 26 16:08:31 2024
    Le 26/09/2024 à 17:09, Athel Cornish-Bowden a écrit :
    On 2024-09-26 12:44:21 +0000, gharnagel said:


    No one sai it wasn't, but "Dr" Hachel's question was "Did you see where Minkowski places his simultaneity plans?" clearly indicating that he
    thinks Minkovski drew it.

    Jesus Christ said: "All those who come after me will be great impostors.
    Do not follow them, do not believe them."

    I can slightly paraphrase it: "All those who have drawn anything on the
    problem of the traveler of Langevin, except me, are great ignoramuses or
    great impostors."

    I refer you to the notion of universal simultaneity, and what I have drawn
    of the evolution of Terrence and Stella; first according to the notion of effective simultaneity for Terrence, then, according to the notion of
    effective simultaneity for Stella.

    In both cases the hastily made drawings are not very aesthetically pretty,
    but the horizontal lines representing the hyperplane of simultaneity are
    of a rare conceptual beauty, even if, I think, it will take a few hours
    for the interested reader to understand the incredible logic.

    R.H.

    --
    Ce message a été posté avec Nemo : <https://www.nemoweb.net/?DataID=xpkcDnbqS178u6dUnlfTdP03l_c@jntp>

    --- SoupGate-Win32 v1.05
    * Origin: fsxNet Usenet Gateway (21:1/5)
  • From Richard Hachel@21:1/5 to All on Sat Sep 28 12:00:17 2024
    Le 28/09/2024 à 09:11, nospam@de-ster.demon.nl (J. J. Lodder) a écrit :

    It is of course obvious to Hachel (and nobody else)
    that nobody could draw a diagram in the 19th century
    because of their lack of 'suitable drawing software'

    Jan

    That's not what I'm saying.
    I'm saying that no man could draw a crocodile without ever having seen a crocodile.
    It's not a question of the quality of the drawing and the artist's skill,
    nor of the quality of the computer drawing software.
    It was absolutely impossible for Minkowski, who didn't have Hachel's
    brain, to draw what I drew yesterday on this forum.
    Terrence's vision, perhaps, and even then, believing that he was
    representing a vision distorted by the Doppler effect, and not the reality
    of things. On the other hand, Stella's vision, it was impossible for him.
    Only Dr. Hachel could have done it (that's me) and with such genius that
    no one is able to understand what is nevertheless relativistic evidence.
    The guy looking at the drawing is gobsmacked by the word "space zoom", and inevitably, doesn't understand much.

    R.H.

    --- SoupGate-Win32 v1.05
    * Origin: fsxNet Usenet Gateway (21:1/5)
  • From gharnagel@21:1/5 to ProkaryoticCaspaseHomolog on Sat Sep 28 13:29:36 2024
    On Sat, 28 Sep 2024 4:07:39 +0000, ProkaryoticCaspaseHomolog wrote:

    On Fri, 27 Sep 2024 21:41:39 +0000, gharnagel wrote:

    The only other persons that I'm aware of was (1) dono, and his
    assertions were clearly false, too, and (2) Athel, who criticized
    where the paper was published and who wrote it rather than on the
    content of the paper.

    Your two criticisms were false. In the first one you claimed

    u > c^2/v cannot mean that a tachyon becomes undetectable because
    all particles must be observable in a frame.

    <snip>

    Your second criticism was that that imaginary mass means that
    tachyons have imaginary energy and momentum.

    <snip>

    ======================================================================

    You have a TERRIBLE memory. Those weren't my arguments AT ALL. And
    your wording of the first criticism shows that you STILL misunderstand
    what frames represent.

    Here are a few conversations in which various group members whom I
    admire (and whose knowledge of the subject exceed my own) ALL agree
    that your thoughts on tachyons are nonsense.:

    Wow, Prok! You do indeed have a lo-o-o-ong memory :-)

    All of these, I note, are from 2020-2021 time frame. I admit that
    there were errors in the viXra papers I wrote. There are anomalies
    in the LT when dealing with tachyons which I was trying to explain,
    and not doing a great job of it, but I was learning. Much of that
    learning was because of responses from you and the others that you
    referenced in your amazingly deep dive into the ancient past.

    Finally, in 2021, I thought I had learned enough to try the real
    world of physics (I hadn't).

    I submitted my paper to American Journal of Physics in 2021 and it
    was rejected because I didn't use Minkowski diagrams nor four-vectors
    (and a reviewer thought my thinking was still fuzzy). I improved and resubmitted in 2022, but it was rejected because I claimed that energy
    could not be negative. The referees disagreed because the 4-momentum
    says that it can).

    Later in 2022, I proved that the 4-momentum incorrectly allows tachyon
    energy to become negative and DOI: 10.13189/ujpa.2023.170101 was
    published (not in AJP). So all these issues raised by Al, Tom, etc.
    are old news and don't apply to the published refereed paper.

    If you wish to discuss why I "misunderstand what frames represent"
    we can discuss that. No referee said that in any of my journal
    submissions.

    [I'm leaving out all the 2020 references you posted, but all your
    work in digging them up is still available in your post]

    I'll just say about Tom and GR: My work is strictly SR, but several
    papers in the journals discuss tachyons in GR, so the jury is still
    out on that.

    ======================================================================

    In regard to your mis-understandings about what frames, coeal had a
    good comment: https://groups.google.com/g/sci.physics.relativity/c/rLiepB5Yjh8/m/NuzA_ofjAwAJ

    | That statement reveals a very elementary misunderstanding. Remember
    | that everything is "in" every frame all the time. We can describe
    | phenomena in terms of any system of coordinates we like. It doesn't
    | change what is physically happening. If you arrange for a
    | superluminal signal to be transmitted and received, that process can
    | be described in terms of infinitely many different systems of
    | inertial coordinates. In terms of some of those systems the signal
    | is going in the positive time direction and in terms of others it
    | is going in the negative time direction. But that doesn't change
    | what happens.

    | In other words, it doesn't make sense to say the signal was
    | successfully transmitted in one description of the events, but it
    | was not successfully transmitted in another description of the very
    | same events. Whether a signal is or is not successfully transmitted
    | between two events is a coordinate-independent fact. But whether it
    | went in the positive or negative time direction is coordinate
    | dependent. Do you understand this?

    ======================================================================

    Like other fringe posters, you believe that EVERYBODY who disagrees
    with you is misguided.

    Not at all. I greatly respected all these criticisms from you and the
    rest of the valiant crew on the relativity boards, and the published
    paper has responded to all of them. I wish you would take the time
    to actually read and understand it.

    In your defense, you DO have a certain degree of knowledge about SR,
    and you certainly believe, as did Dono, that you are a defender of
    SR against the crackpots.

    Well, I DO :-)

    But as with Dono, you have no knowledge of the limits of your
    understanding.

    Ah, but I AM woefully aware. I had to do yeoman work to increase
    my k&u to rebut the criticisms posed by everyone. It was a long,
    hard slog to DOI: 10.13189/ujpa.2023.170101 and I wish I had been
    a bit more careful in some wording and explanations, but I think
    it is very well reasoned and proves mathematically that tachyons,
    if they exist, would not violate causality.

    And, the beta decay experiments have not ruled out the possibility
    that neutrinos are tachyons.

    --- SoupGate-Win32 v1.05
    * Origin: fsxNet Usenet Gateway (21:1/5)
  • From gharnagel@21:1/5 to ProkaryoticCaspaseHomolog on Sat Sep 28 17:00:08 2024
    On Sat, 28 Sep 2024 14:18:08 +0000, ProkaryoticCaspaseHomolog wrote:

    On Sat, 28 Sep 2024 13:29:36 +0000, gharnagel wrote:

    On Sat, 28 Sep 2024 4:07:39 +0000, ProkaryoticCaspaseHomolog wrote:

    Like other fringe posters, you believe that EVERYBODY who disagrees
    with you is misguided.

    Not at all. I greatly respected all these criticisms from you and
    the rest of the valiant crew on the relativity boards, and the
    published paper has responded to all of them. I wish you would
    take the time to actually read and understand it.

    ======================================================================
    It didn't take me more than a few minutes looking at your paper to
    understand that you are STILL ripping spacetime to shreds: https://drive.google.com/file/d/1mZJcqaV2KieXFNU5iWHCsVtDK21HOLWE/view?usp=sharing

    Only "a few minutes"? Then you haven't understood that there is no
    "ripping spacetime to shreds"

    The objection that Al made (and you reiterated) that all objects
    should appear in all frames is laid to rest in my DOI, and I also
    explained it to you in a previous post:

    "Of course, an observer must use instruments to observe particles,
    so a method of observing particles which have u > c^2/v was
    described in the very paper that you were criticizing:
    DOI: 10.13189/ujpa.2023.170101.

    And using instruments, one can detect tachyons in the u > c^2/v
    region:

    "the tachyon source sending a signal at u = ∞, the observer can’t
    receive the signal directly, but the observer could allow the
    receiver to move toward the source at speed, v. Thus the speed of
    the tachyon relative to the receiver could be nearly infinite and
    its energy, relative to the receiver, would be greater than zero."

    Thus A's criticism is avoided, so does that satisfy your concern
    about shredding spacetime, or do you mean something else?

    You don't understand spacetime diagrams. They provide a direct
    graphical representation of the Lorentz transformation: https://en.wikipedia.org/wiki/Special_relativity#Graphical_representation_of_the_Lorentz_transformation

    The above section is at least 95% unchanged from when I originally
    added the section on 11 November 2018 https://tinyurl.com/4a388w7x
    In August 2020, "UKER" objected to the way that I worded the last
    paragraph, so we reached a compromise. https://tinyurl.com/57a29nne

    Yes, the diagrams are an accurate representation of the LT, BUT the
    LT has a problem with tachyons. The velocity composition equation
    is a direct consequence of the LT:

    u' = \gamma (u - v)/(1 - uv/c^2)

    and u = c^2/v is unphysical since infinities indicate a limitation
    on the domain of applicability of the LT. This is further seen in
    the energy equation:

    E' = mc^2/sqrt(u'^2/c^2 - 1)

    when u' is substituted with the above composition equation.

    In the past, you have consistently avoided using spacetime diagrams
    because they don't express your ideas in the way that you would prefer
    to express them.

    I did in the viXra papers because I considered the problem from a
    laboratory perspective. Observers don't see diagrams, they see
    measurements. I came to recognize that my lab diagrams were merely
    rotated 90 degrees from a MD with the time axis rotated into the paper.

    Anyway, my experience with reviewers forced me to present everything
    in MDs and also to deal with 4-vectors.

    Your deprecation of spacetime diagrams essentially
    amounts to dissing the LT.

    Well, as I demonstrated in the UJPA paper (and above), the LT cannot
    be a valid description of the region u > c^2/v.

    As an aside, don't you find it interesting that the LT has no
    problem with u < -c^2/v, and it turns out there is no infinity
    in that region? That was one of the reasons I felt that all the
    arguments against tachyons may be faulty very early on.

    The proof took a long time, but I finally did it, thanks to the
    mountainous waves of criticism I received :-)

    --- SoupGate-Win32 v1.05
    * Origin: fsxNet Usenet Gateway (21:1/5)
  • From gharnagel@21:1/5 to ProkaryoticCaspaseHomolog on Sat Sep 28 20:28:00 2024
    On Sat, 28 Sep 2024 18:36:22 +0000, ProkaryoticCaspaseHomolog wrote:

    On Sat, 28 Sep 2024 17:00:08 +0000, gharnagel wrote:

    On Sat, 28 Sep 2024 14:18:08 +0000, ProkaryoticCaspaseHomolog wrote:

    ======================================================================
    It didn't take me more than a few minutes looking at your paper to understand that you are STILL ripping spacetime to shreds:

    https://drive.google.com/file/d/1mZJcqaV2KieXFNU5iWHCsVtDK21HOLWE/view?usp=sharing

    Only "a few minutes"? Then you haven't understood that there is no "ripping spacetime to shreds"

    ======================================================================
    Your arguments really haven't changed over the years. You have merely
    glossed over your points by arguing about instrumental detectability.
    So no, it really hasn't been necessary to spend more than a few
    minutes finding where you have denied the validity of LT and special relativity.

    But the instrumental detectibility demolishes Al's argument (and
    you're agreement with him). SO it is MUCH more than a "glossed
    over" point.

    Looking at https://vixra.org/pdf/2011.0076v1.pdf, I see that after
    dissing a few Minkowski diagrams at the beginning, you revert to your so-called "laboratory frame" diagrams that allow you to freely
    set up absurdities without the absurdities being readily apparent. ======================================================================

    You're still not dealing with DOI: 10.13189/ujpa.2023.170101 which
    uses Minkowski diagrams.

    The objection that Al made (and you reiterated) that all objects
    should appear in all frames is laid to rest in my DOI, and I also
    explained it to you in a previous post:

    ====================================================================== Reality does not change due to the motions of the observer. ======================================================================

    And, of course, it doesn't in DOI: 10.13189/ujpa.2023.170101.
    The problem with the conventional viewpoint of tachyons which
    presumes they can move backwards in time for some observers is
    that spacetime IS "ripped to shreds" as you say.

    "Of course, an observer must use instruments to observe particles,
    so a method of observing particles which have u > c^2/v was
    described in the very paper that you were criticizing:
    DOI: 10.13189/ujpa.2023.170101.

    ======================================================================
    Your arguments here offer no improvement over the vixra articles. ======================================================================

    Au contraire, Prok, as I pointed out above. But it's not just
    THAT point that is in the published paper.

    And using instruments, one can detect tachyons in the u > c^2/v
    region:

    "the tachyon source sending a signal at u = ∞, the observer can’t receive the signal directly, but the observer could allow the
    receiver to move toward the source at speed, v. Thus the speed of
    the tachyon relative to the receiver could be nearly infinite and
    its energy, relative to the receiver, would be greater than zero."

    Thus A's criticism is avoided, so does that satisfy your concern
    about shredding spacetime, or do you mean something else?

    ====================================================================== Absolutely not. You still insist that reality changes as a result of
    observer motion. One cannot make excuses on the basis of factors
    supposedly affecting instrumental performance. ======================================================================

    Prok, reality does NOT change unless tachyons can move backward in
    time for some observers. The backward-in-time scenarios are caused
    by (1 - uv/c^2) in the LT, but to get to t' < 0, u' must REACH infinity
    (an impossibility) in order to get there. Now, as to spacetime
    diagrams ...

    The Minkowski diagram Figure 4 in DOI: 10.13189/ujpa.2023.170101
    shows D sending a tachyon signal at t = vL/c^2 to C, but to C when?
    It is usually presumed that D can send it infinitely fast to C at
    t = 0 who can send it infinitely fast to B at t = 0. If we assume
    that B originated the message at t = vL/c^2 and passed it to D, then
    B would have received the message before it was originated.

    The problem with that scenario is that you must jump frames to
    presume that D can send it infinitely fast. If you are required to
    stay in the AB-stationary frame, C is NOT at t = 0 when D sends
    the signal to C at t = vL/c^2 (hence the horizontal arrow), and
    you are REQUIRED to perform all of your analysis is ONE frame (it
    doesn't matter which one, as Figure 5 attests) by well-known
    physicists such as David Morin, John Wheeler and Edwin Taylor
    in their physics textbooks. Recami also has proclaimed thus in
    his papers.

    The MD has mesmerized many physicists into jumping frames without
    realizing it when dealing with tachyon problems. I went to lab
    views to get away from that, but I managed to get to the point
    where I could argue using MDs, so you are quoting past situations
    when you claim that I don't understand them.

    Actually, you and many others failed to use them properly when
    dealing with tachyons and it took a long time for me to wade
    through the morass.

    --- SoupGate-Win32 v1.05
    * Origin: fsxNet Usenet Gateway (21:1/5)
  • From Richard Hachel@21:1/5 to All on Sat Sep 28 21:26:40 2024
    Le 28/09/2024 à 10:50, Thomas Heger a écrit :
    "Accelerations have nothing to do with history.

    Their only interest is to change the frame of reference, that is to say, CHRONOTROPY and metric.

    Nothing to do with what happens after.

    Because everything happens AFTER. And in the long segments of uniform relative speeds.
    We should not worry about accelerations, they are only a small thing
    over a small duration if we focus on the total times recorded.

    The time gap, I repeat, is dust under the carpet. It does not exist for Terrence, nor for Stella if we understand what we are defining.

    That is Minkowskian ideology."

    Well, that's wrong.

    Apparently acceleration has an impact upon the flow of time, while
    velocity hasn't.

    One reason: several observations point in this direction (e.g. Havard
    Tower experiment, Pioneer anomaly).

    second: velocity is not defined in the dark, forcefree space of SRT.

    Therefore we need to put more emphasis on acceleration and forget v for
    a moment.

    TH

    Above all, we must stop talking nonsense.

    I repeat, to make myself clear.

    Time ratios are based on speed; and acceleration, which is only used to
    move from one speed to another,
    plays no role in the equation:
    To=Tr.sqrt(1+Vr²/c²) in real speed notation,
    or To=Tr/sqrt(1-Vo²/c²) in classical observable speed notation.

    Thus, if we integrate all the small segments of proper time
    in the Tau Ceri problem treated here by me and Paul.B.Andersen,
    we will obtain Tr=4.776 years, which is the sum of all the small proper
    times (which is logical) between the Earth and Tau Ceti.
    Now, these proper times are given by the real instantaneous speed and the
    space traveled per unit of time in the observing frame of reference during these short distances and periods of time.

    The acceleration is not taken into account in the final calculation but
    only the speeds in each segment Tr=Tr1+Tr2+Tr3+...+Trn

    R.H.

    --- SoupGate-Win32 v1.05
    * Origin: fsxNet Usenet Gateway (21:1/5)
  • From Mikko@21:1/5 to Richard Hachel on Sun Sep 29 12:34:35 2024
    On 2024-09-26 13:09:06 +0000, Richard Hachel said:

    Le 26/09/2024 à 11:14, Mikko a écrit :
    On 2024-09-25 00:27:09 +0000, Richard Hachel said:

    I stumbled upon this on Wikipedia...

    I don't know whether to laugh or cry...

    Did you see where Minkowski places his simultaneity plans?

    But that's not it!!!

    That's not it AT ALL!!!

    <http://nemoweb.net/jntp?Ev7wMrtKlxguxDn1RDUke8-o3Zo@jntp/Data.Media:1>

    With a huge dust under the carpet right in the middle (the stupid
    time-gap of physicists).

    It's depressing.

    That is a good Minkowski diagram and shows correctly what is intended
    and claimed to be shown.

    Mikko, you are very kind, but you have not yet understood everything
    about Hachel's genius (that's me).

    I have understood that according to a minority opnion Hachel is a genious.

    --
    Mikko

    --- SoupGate-Win32 v1.05
    * Origin: fsxNet Usenet Gateway (21:1/5)
  • From Mikko@21:1/5 to Richard Hachel on Sun Sep 29 12:37:07 2024
    On 2024-09-28 21:26:40 +0000, Richard Hachel said:

    Above all, we must stop talking nonsense.

    Good idea but doesn't happen as long as nobody wants to do it first.

    --
    Mikko

    --- SoupGate-Win32 v1.05
    * Origin: fsxNet Usenet Gateway (21:1/5)
  • From Richard Hachel@21:1/5 to All on Sun Sep 29 13:56:10 2024
    XPost: fr.sci.physique

    Le 29/09/2024 à 11:37, Mikko a écrit sur sci.physics.relativity :

    On 2024-09-28 21:26:40 +0000, Richard Hachel said:

    Above all, we must stop talking nonsense.
    R.H.

    Good idea but doesn't happen as long as nobody wants to do it first.
    Mikko

    Of course, but it is not enough.

    Not only do you have to check what you say, and not tell nonsense so as
    not to lead those who read it into error;
    and many do not do it.
    The little internet videos on relativity are horribly boastful, and it is unbearable to see people take long selfies (they almost all do it)
    to show how physically beautiful they are for fifteen or thirty minutes.
    But what do they bring to science?
    Nothing at all. They come to do works of self-promotion, by reciting what
    they learned at school or read in scientific journals.
    It is horribly narcissistic.

    So you are right, you have to check what you say, work a little on your
    own, not show yourself like a prostitute, and question yourself.

    But it is still not enough.

    It is also necessary, after having done this, to honestly question the
    others, and not destroy them or glorify them unnecessarily and without
    valid proof.

    When I propose the two new diagrams, much better than those that are
    proposed since no one has achieved such clarity of mind
    on the subject, I think that it deserves, at least a reflection before criticizing for the simple desire to criticize.

    I put back the two diagrams drawn in a hurry, since I am not here to show
    off and film myself on video in front of drawings on cutting-edge
    software,
    I leave that to the manufacturers of ladies' dresses.

    But I assume the relativistic importance in a world where there are more
    mouths that talk than heads that think.

    <http://nemoweb.net/jntp?ao9UmOFhis19mdIiMhXK48MrsC0@jntp/Data.Media:1>

    <http://nemoweb.net/jntp?Wa9w3Wa_pYh2RfoV8OhSZOEKzig@jntp/Data.Media:1>

    <https://www.nemoweb.net/?DataID=ex2WxRe4XnlmoAqhJ80lvJjXpNY@jntp>

    R.H.

    --- SoupGate-Win32 v1.05
    * Origin: fsxNet Usenet Gateway (21:1/5)
  • From Athel Cornish-Bowden@21:1/5 to Mikko on Sun Sep 29 19:28:40 2024
    On 2024-09-29 09:34:35 +0000, Mikko said:

    On 2024-09-26 13:09:06 +0000, Richard Hachel said:

    Le 26/09/2024 11:14, Mikko a crit :
    On 2024-09-25 00:27:09 +0000, Richard Hachel said:

    I stumbled upon this on Wikipedia...

    I don't know whether to laugh or cry...

    Did you see where Minkowski places his simultaneity plans?

    But that's not it!!!

    That's not it AT ALL!!!

    <http://nemoweb.net/jntp?Ev7wMrtKlxguxDn1RDUke8-o3Zo@jntp/Data.Media:1> >>>>
    With a huge dust under the carpet right in the middle (the stupid
    time-gap of physicists).

    It's depressing.

    That is a good Minkowski diagram and shows correctly what is intended
    and claimed to be shown.

    Mikko, you are very kind, but you have not yet understood everything
    about Hachel's genius (that's me).

    I have understood that according to a minority opnion Hachel is a genious.

    Yes, with three Nobel Prizes under his belt. What more evidence would you need?


    --
    athel -- biochemist, not a physicist, but detector of crackpots

    --- SoupGate-Win32 v1.05
    * Origin: fsxNet Usenet Gateway (21:1/5)
  • From gharnagel@21:1/5 to ProkaryoticCaspaseHomolog on Sun Sep 29 20:53:41 2024
    On Sun, 29 Sep 2024 12:16:05 +0000, ProkaryoticCaspaseHomolog wrote:

    On Sat, 28 Sep 2024 20:28:00 +0000, gharnagel wrote:

    Prok, reality does NOT change unless tachyons can move backward in
    time for some observers. The backward-in-time scenarios are caused
    by (1 - uv/c^2) in the LT, but to get to t' < 0, u' must REACH
    infinity (an impossibility) in order to get there. Now, as to
    spacetime diagrams ...

    The Minkowski diagram Figure 4 in DOI: 10.13189/ujpa.2023.170101
    shows D sending a tachyon signal at t = vL/c^2 to C, but to C when?
    It is usually presumed that D can send it infinitely fast to C at
    t = 0 who can send it infinitely fast to B at t = 0. If we assume
    that B originated the message at t = vL/c^2 and passed it to D, then
    B would have received the message before it was originated.

    The problem with that scenario is that you must jump frames to
    presume that D can send it infinitely fast. If you are required to
    stay in the AB-stationary frame, C is NOT at t = 0 when D sends
    the signal to C at t = vL/c^2 (hence the horizontal arrow), and
    you are REQUIRED to perform all of your analysis is ONE frame (it
    doesn't matter which one, as Figure 5 attests) by well-known
    physicists such as David Morin, John Wheeler and Edwin Taylor
    in their physics textbooks. Recami also has proclaimed thus in
    his papers.

    The MD has mesmerized many physicists into jumping frames without
    realizing it when dealing with tachyon problems. I went to lab
    views to get away from that, but I managed to get to the point
    where I could argue using MDs, so you are quoting past situations
    when you claim that I don't understand them.

    Actually, you and many others failed to use them properly when
    dealing with tachyons and it took a long time for me to wade
    through the morass.

    (sigh)

    The LT serve to map events from one frame to another frame. They do
    not deal with momentum or energy. They do not mention moving
    particles which may go faster or slower than the speed of light, etc.

    SR is a holistic theory. You rip it apart and deal with only one
    aspect at your peril.

    But even so,
    In your paper at DOI: 10.13189/ujpa.2023.170101, you write:
    | The Lorentz transform equations have been an excellent
    | model of reality (in the absence of significant gravitational
    | effects) for particles which travel slower or at the speed of
    | light, but they place time and space on an equal footing, which
    | presents problems when dealing with tachyons.

    What you have REALLY written here is that "The Lorentz transform
    equations do not apply to spacelike-separated events."

    In other words, "Special Relativity Is False".

    That is an absurd exaggeration of my position, in effect, a straw
    man argument. I am saying that the LT has a limited domain of
    applicability, which is very different from saying SR, or the LT
    is false.

    Clearly, I have claimed the LT does indeed apply to spacelike-
    separated events since u < c^2/v falls within that region.

    And the comment about time and space not being on an equal
    footing is not MY claim. Don't you bother to read references?

    Vaccaro J. A., “Quantum asymmetry between time and
    space,” Proc. Royal Soc. A, 472, pp. (not numbered),
    2016. DOI: 10.1098/rspa.2015.0670.

    If I were to redraw your Figure 6 for different observers adding a
    background of fixed events as I did in https://tinyurl.com/mrxyx3ek,
    I would see that the origin events would shift for the different
    observers, even as the receiving events shifted in my original
    scenario. Spacetime is still ripped to shreds.

    I've reattached my drawing. Study it and study your own Figure 6.

    Your initial statement is that the S' frame is stationary and you
    are going to move the lab frame. Then you place two observers, C
    and D, orthogonal because they are stationary in S'. Then you
    send a signal from D to C infinitely fast.

    Now in the triptych, you move the lab frame S. That's fine, but
    S' is the STATIONARY frame: C and D should still be vertical.
    So I must assume that you are actually switching to the S frame
    and making IT stationary, right?

    So you have done exactly what Morin, Taylor, Wheeler and Recami
    say NOT to do. You have switched horses (er, frames) in the
    middle of the stream (er, problem setup).

    So let's look at the figure on the right with v = 0.1c. As viewed
    from S, t1 = \gamma (0 + 0.1L) = 0.1gL. At that time in S, the time
    in C is not at t = 0. This is relativity of simultaneity (RoS).
    Prok, YOU are the one trying to rip SR to shreds by pretending you
    can ignore RoS. Figures 4 and 5 in DOI: 10.13189/ujpa.2023.170101
    obey RoS, your figures do not.

    Furthermore, let's remove the signal in the triptych. Now, what
    has changed in the three figures? NOTHING AT ALL. All the events
    are still right where they were as observed by those stationary
    in S. It doesn't matter what the signal speed is, it changes
    nothing.

    --- SoupGate-Win32 v1.05
    * Origin: fsxNet Usenet Gateway (21:1/5)
  • From gharnagel@21:1/5 to ProkaryoticCaspaseHomolog on Tue Oct 1 13:51:55 2024
    On Mon, 30 Sep 2024 23:48:27 +0000, ProkaryoticCaspaseHomolog wrote:

    On Sun, 29 Sep 2024 20:53:41 +0000, gharnagel wrote:

    Your initial statement is that the S' frame is stationary and you
    are going to move the lab frame. Then you place two observers, C
    and D, orthogonal because they are stationary in S'. Then you
    send a signal from D to C infinitely fast.

    Now in the triptych, you move the lab frame S. That's fine, but
    S' is the STATIONARY frame: C and D should still be vertical.
    So I must assume that you are actually switching to the S frame
    and making IT stationary, right?

    ======================================================================
    I stated very clearly that I am using the inverse Lorentz transform
    to map the events of STATIONARY frame S' to my MOVING lab frame. To
    keep the diagrams uncluttered, I did not draw the coordinates of my
    lab frame. My coordinates remain orthogonal. ======================================================================

    Prok, Prok, Prok! You're smarter than that, and so am I! t' and x'
    are NOT orthogonal in the left and right figures, so you HAVE switched
    frames. You left out the t and x axes, which hides the fact that
    they ARE orthogonal, which would prove that the viewpoint in those
    figures is from the S frame.

    So you have done exactly what Morin, Taylor, Wheeler and Recami
    say NOT to do. You have switched horses (er, frames) in the
    middle of the stream (er, problem setup).

    ======================================================================
    No, I am not switching back and forth between frames. ======================================================================

    Yes, you did. You have confused yourself, not me.

    ======================================================================
    For the purpose of any one diagram, my moving frame is moving at a
    constant rate relative to the stationary frame, and I stick to that
    one frame without jumping around. ======================================================================

    No, you didn't, as the non-orthogonal t' and x' axes prove.

    So let's look at the figure on the right with v = 0.1c. As viewed
    from S, t1 = \gamma (0 + 0.1L) = 0.1gL. At that time in S, the time
    in C is not at t = 0. This is relativity of simultaneity (RoS).
    Prok, YOU are the one trying to rip SR to shreds by pretending you
    can ignore RoS. Figures 4 and 5 in DOI: 10.13189/ujpa.2023.170101
    obey RoS, your figures do not.

    ======================================================================
    There is no problem with my triptych diagrams. As I have drawn them,
    the event associated with receipt of the signal is at t'=0 in all
    three scenarios. It is the diagram below the triptych labeled "Gary's proposal" which is totally INSANE. In order to prevent the arrow from
    moving backwards in time as observed in my moving frame, you would
    have the context of the receiving event SHIFT as the result of my
    movement. ======================================================================

    No, Prok, you misunderstand. I'm saying that the signal should
    arrive at t' = vL/c^2. not t' = 0 to save RoS. There is no "ripping
    spacetime to shreds" :-). To help you understand:

    Please look at my Figure 4. A and B are stationary (the t and x
    axes are orthogonal, call this the S frame). Points along
    horizontal lines are simultaneous for A and B. In this figure,
    A launches the tachyonic signal to B, but it could be any of the
    other players doing the launch as well. But let's go with A to B
    at t = vL/c^2 and B passes the message to D at that time. The two
    arrows with "?" presents the question: where (or when, actually)
    can D send a signal to C? To C at t = 0 or C at t = vL/c^2?

    From the perspective of C and D in S', D should be able to send
    it to C at t' = t = 0 because that is along a horizontal line
    (the x' axis), but from the perspective of A and B, C is NOT at
    t = 0: C is at t = vL/c^2. It is only possible to claim that D
    can send it infinitely fast from the S' frame. It cannot be done
    from the S frame. THIS is why my arrow is horizontal in S. This
    is relativity of simultaneity in the raw.

    This is one reason why Morin, Taylor, Wheeler and Recami say to
    stay in one frame to solve the problem. Staying in S in Figure 4,
    D cannot send the signal to C at t = 0 because C is at t = vL/c^2.

    Now, look at Figure 5. A similar ambiguity appears when A sends
    the signal to B. Note, however, that A at t = t' = 0 can send
    the signal to B at t' = 0, but B's time is t = vL/c^2. Therefore,
    according to C and D, A can send it no faster than c^2/v.

    Actually, A could send it infinitely fast to B, but B isn't
    adjacent to D, so B would have to wait until t' = 0.

    Spacetime diagrams tend to desensitize one's faculties about RoS.

    --- SoupGate-Win32 v1.05
    * Origin: fsxNet Usenet Gateway (21:1/5)
  • From Richard Hachel@21:1/5 to All on Tue Oct 1 19:11:06 2024
    Le 01/10/2024 à 20:47, hitlong@yahoo.com (gharnagel) a écrit :
    On Tue, 1 Oct 2024 15:55:04 +0000, ProkaryoticCaspaseHomolog wrote:


    And you haven't acknowledged your confusion about what frame
    is the "stationary" one in the right and left figures. Just
    proclaiming a frame as stationary doesn't make it so, particularly
    when you draw its time axis skewed.

    It is true that this mania for drawing oblique axes with all the possible fancies is absolutely distressing.

    But that is not the worst.

    The worst is that they think, probably with conviction, that not only
    should the world be made as they draw it, but that in addition their
    stupid lines are very beautiful.

    We then enter into what future generations will call the relativistic
    crime, which does not consist in being wrong (everyone has the right to be wrong) but in spitting on Doctor Hachel who had given them everything,
    from the resolution of the Langevin paradox, to the resolution of the
    Ehrenfest paradox, including the developed equations of uniformly
    accelerated frames of reference.

    That is what is worthy of making one bray like a donkey.

    I have again shown by two very simple diagrams, here, on September 27 at
    5:04 p.m. that it was much more beautiful and especially much more correct
    to draw horizontal lines of simultaneity.

    This beauty and this scientific truth seem to hurt the eyes.

    We have been living in a crazy world since antiquity.

    R.H.

    --- SoupGate-Win32 v1.05
    * Origin: fsxNet Usenet Gateway (21:1/5)
  • From gharnagel@21:1/5 to ProkaryoticCaspaseHomolog on Tue Oct 1 18:47:16 2024
    On Tue, 1 Oct 2024 15:55:04 +0000, ProkaryoticCaspaseHomolog wrote:

    On Tue, 1 Oct 2024 13:51:55 +0000, gharnagel wrote:
    ....
    No, Prok, you misunderstand. I'm saying that the signal should
    arrive at t' = vL/c^2. not t' = 0 to save RoS. There is no "ripping spacetime to shreds" :-). To help you understand:

    Claiming that t' = vL/c^2 DESTROYS RoS, does not rescue it.

    How is that any different from saying it arrives at t' = L/c?

    There can be any number of observers of the same events. Suppose you
    are in the lab frame moving to the left at 0.1 c. You claim that to
    save RoS, the S' observer must receive the signal at t' = 0.1*L/c^2

    I am concurrently observing the same events from a frame moving at v=0.
    To save RoS, the S' observer must receive the signal at t'=0.

    ???

    D sends the signal at speed c^2/0.1c, so that is the speed that your "concurrent observer" sees (DUH!) The lab observer will measure the
    speed as infinitely fast.

    My wife is concurrently observing the same events from a frame moving
    at v=-0.1c. To save RoS, the S' observer must receive the signal at
    t' = -0.1*L/c^2.

    Which is it, Gary? Does the S' observer receive the signal at
    t' = 0.1*L/c^2, t' = 0, or t' = -0.1*L/c^2 ?

    Any observer at rest in S' measures the signal speed as 0.1c DUH!
    It arrives at C at t' = 0.1L/c. What the heck are you babbling about?

    Does reality change as a result of the motion of external observers?

    Does reality split into an infinity of worlds? Is your "theory" a
    "many worlds" interpretation of special relativity?

    Prok, I have shown that you completely misunderstood my thesis
    whereas the reviewer of DOI: 10.13189/ujpa.2023.170101 did not
    or he would have rejected it. Rather than acknowledge your
    error and try to understand, you launch another baseless attack
    because of your confusion about what v means. It is the speed
    that D must send the signal (Event E1) so it arrives when C and
    A are adjacent (E2). Furthermore, A must send a signal to B
    when B is adjacent to D. Your figures are only half of the full
    problem, and they do NOT describe my "proposal." They are your
    imaginings. If you want to discuss my thesis, then use my
    figures (4 and 5, particularly). Yours are straw men.

    And you haven't acknowledged your confusion about what frame
    is the "stationary" one in the right and left figures. Just
    proclaiming a frame as stationary doesn't make it so, particularly
    when you draw its time axis skewed.

    --- SoupGate-Win32 v1.05
    * Origin: fsxNet Usenet Gateway (21:1/5)
  • From Richard Hachel@21:1/5 to All on Tue Oct 1 22:13:57 2024
    Le 01/10/2024 à 23:56, Python a écrit :
    Your "diagrams" are utterly idiotic.

    This beauty and this scientific truth seem to hurt the eyes.

    We have been living in a crazy world since antiquity.


    A crazy world where were conceived and build steam engines, trains, cars, planes, rockets, atomic bombs (oops), nuclear power plants. We travelled to the
    Moon and back, launched satellites, created computers, vaccines and radars.

    Not that bad for a "crazy world", don't you think?

    That's easy to say.
    Personally, I think the opposite and often people comfort me by saying:
    "If men weren't so crazy, we would be technologically millennia ahead".
    That's probably very true.
    Of course, what you say is true: it's not so bad.
    But the truth still makes you want to cry.
    I don't mean that we are far behind what we could have done if men had
    thought with their heads rather than with their dicks.
    In my opinion, you are wrong, and it is the great philosophers who are
    right when they talk about human madness (that is to say, the majority
    who, for probably jealous reasons, disgust or prevent progress from
    advancing more quickly).

    R.H.

    --- SoupGate-Win32 v1.05
    * Origin: fsxNet Usenet Gateway (21:1/5)
  • From Python@21:1/5 to All on Tue Oct 1 21:56:49 2024
    Le 01/10/2024 à 21:11, Richard Hachel a écrit :
    Le 01/10/2024 à 20:47, hitlong@yahoo.com (gharnagel) a écrit :
    On Tue, 1 Oct 2024 15:55:04 +0000, ProkaryoticCaspaseHomolog wrote:


    And you haven't acknowledged your confusion about what frame
    is the "stationary" one in the right and left figures. Just
    proclaiming a frame as stationary doesn't make it so, particularly
    when you draw its time axis skewed.

    It is true that this mania for drawing oblique axes with all the possible fancies is absolutely distressing.

    But that is not the worst.

    The worst is that they think, probably with conviction, that not only should the
    world be made as they draw it, but that in addition their stupid lines are very
    beautiful.

    We then enter into what future generations will call the relativistic crime, which does not consist in being wrong (everyone has the right to be wrong) but in
    spitting on Doctor Hachel who had given them everything, from the resolution of
    the Langevin paradox, to the resolution of the Ehrenfest paradox, including the
    developed equations of uniformly accelerated frames of reference.

    That is what is worthy of making one bray like a donkey.

    I have again shown by two very simple diagrams, here, on September 27 at 5:04 p.m. that it was much more beautiful and especially much more correct to draw horizontal lines of simultaneity.

    Your "diagrams" are utterly idiotic.

    This beauty and this scientific truth seem to hurt the eyes.

    We have been living in a crazy world since antiquity.


    A crazy world where were conceived and build steam engines, trains, cars, planes, rockets, atomic bombs (oops), nuclear power plants. We travelled
    to the
    Moon and back, launched satellites, created computers, vaccines and
    radars.

    Not that bad for a "crazy world", don't you think?

    --- SoupGate-Win32 v1.05
    * Origin: fsxNet Usenet Gateway (21:1/5)
  • From gharnagel@21:1/5 to ProkaryoticCaspaseHomolog on Tue Oct 1 22:18:12 2024
    On Tue, 1 Oct 2024 19:24:31 +0000, ProkaryoticCaspaseHomolog wrote:

    On Tue, 1 Oct 2024 18:47:16 +0000, gharnagel wrote:

    And you haven't acknowledged your confusion about what frame
    is the "stationary" one in the right and left figures. Just
    proclaiming a frame as stationary doesn't make it so, particularly
    when you draw its time axis skewed.

    I have told you several times that I am designating the S' as
    stationary, in addition to plainly stating that fact in my drawing.

    And then you "moved" the lab frame and pretended S' was still
    stationary, which is contradicted by the fact that the t' and
    x' axes are no longer orthogonal.

    Our frame, the S frame, is moving.

    If it's "our" frame, then we are stationary by the first principle.
    And the skewed t' and x' axes prove it. Velocity is relative.

    To simplify the figures, I have not drawn the S axes, which are
    orthogonal. The S' axes are skewed because I am mapping events
    in S' to our coordinate system, where our S coordinate system
    is moving relative to the S' coordinate system at speeds -0.1c,
    0c, and +0.1c.

    Velocity is relative. The left and right panels show that S'
    is moving relative to S.

    Prok, I have shown that you completely misunderstood my thesis
    whereas the reviewer of DOI: 10.13189/ujpa.2023.170101 did not
    or he would have rejected it. Rather than acknowledge your
    error and try to understand, you launch another baseless attack
    because of your confusion about what v means. It is the speed
    that D must send the signal (Event E1) so it arrives when C and
    A are adjacent (E2). Furthermore, A must send a signal to B
    when B is adjacent to D. Your figures are only half of the full
    problem, and they do NOT describe my "proposal." They are your
    imaginings. If you want to discuss my thesis, then use my
    figures (4 and 5, particularly). Yours are straw men.

    And you haven't acknowledged your confusion about what frame
    is the "stationary" one in the right and left figures. Just
    proclaiming a frame as stationary doesn't make it so, particularly
    when you draw its time axis skewed.

    There is only one person here who is confused, and that is YOU.

    Nope. In fact there is confusion on both sides.

    In the S' frame, an infinite speed tachyonic signal is emitted
    from (x',t') = (D,0) and is received in zero time at (x',t') = (C,0)

    That is zero time as measured in the S' frame.

    There is no confusion there.

    The emission and receipt events are concurrently monitored by
    observers in three "S" frames, where the "S" frames are moving
    relative to the S' frame at speeds -0.1c, 0c, and +0.1c, and so
    forth.

    This is certainly possible, but you're three panels represent
    perspectives from three different frames, and only the center
    panel is from that of S'.

    In general, observers in the "S" frames do not consider the signals
    as traveling from D to C in zero time.

    And there's no confusion there, either; however, your last claim
    here is switching from Method II (the "hand-off scenario) to
    Method I (direct communication between frames in relative motion.

    Let's get some things cleared up here.

    (1) We assume that D has a tachyon transmitter and C has a basic
    tachyon receiver.

    (2) C and D can communicate with each other at any speed
    c < u < \infty. (Infinite speed tachyons have no energy
    and can't be detected by a basic tachyon receiver.)

    (3) Observers in other frames with a basic tachyon receiver may
    or may not be able to "eavesdrop" on their signal, if they don't
    have an advanced tachyon receiver.

    (4) Having an advanced tachyon receiver means that they have a
    receiver with a moving sensor that allows the signal energy to
    be greater than zero (the velocity between transmitter and
    receiver is closing). Effectively, this is Method II.

    (5) Under these conditions, there are no causality violations
    and there is no ripping of spacetime to shreds.

    All of this is spelled out in DOI: 10.13189/ujpa.2023.170101.

    --- SoupGate-Win32 v1.05
    * Origin: fsxNet Usenet Gateway (21:1/5)
  • From Python@21:1/5 to All on Tue Oct 1 22:25:14 2024
    Le 02/10/2024 à 00:13, Richard Hachel a écrit :
    Le 01/10/2024 à 23:56, Python a écrit :
    Your "diagrams" are utterly idiotic.

    This beauty and this scientific truth seem to hurt the eyes.

    We have been living in a crazy world since antiquity.


    A crazy world where were conceived and build steam engines, trains, cars,
    planes, rockets, atomic bombs (oops), nuclear power plants. We travelled to the
    Moon and back, launched satellites, created computers, vaccines and radars. >>
    Not that bad for a "crazy world", don't you think?

    That's easy to say.
    Personally, I think the opposite and often people comfort me by saying: "If men
    weren't so crazy, we would be technologically millennia ahead".
    That's probably very true.
    Of course, what you say is true: it's not so bad.
    But the truth still makes you want to cry.
    I don't mean that we are far behind what we could have done if men had thought
    with their heads rather than with their dicks.
    In my opinion, you are wrong, and it is the great philosophers who are right when they talk about human madness (that is to say, the majority who, for probably
    jealous reasons, disgust or prevent progress from advancing more quickly).


    So we have to confront ONE real world, with bad and good things, that it
    what it is
    to a fantasy world in the mind of a single, uneducated, histrionic,
    dishonest and
    megalomagniac retired M.D.

    Let us take time to decide :-)

    --- SoupGate-Win32 v1.05
    * Origin: fsxNet Usenet Gateway (21:1/5)
  • From Python@21:1/5 to All on Tue Oct 1 22:34:24 2024
    Le 02/10/2024 à 00:25, Python a écrit :
    Le 02/10/2024 à 00:13, Richard Hachel a écrit :
    Le 01/10/2024 à 23:56, Python a écrit :
    Your "diagrams" are utterly idiotic.

    This beauty and this scientific truth seem to hurt the eyes.

    We have been living in a crazy world since antiquity.


    A crazy world where were conceived and build steam engines, trains, cars, >>> planes, rockets, atomic bombs (oops), nuclear power plants. We travelled to the
    Moon and back, launched satellites, created computers, vaccines and radars. >>>
    Not that bad for a "crazy world", don't you think?

    That's easy to say.
    Personally, I think the opposite and often people comfort me by saying: "If men
    weren't so crazy, we would be technologically millennia ahead".
    That's probably very true.
    Of course, what you say is true: it's not so bad.
    But the truth still makes you want to cry.
    I don't mean that we are far behind what we could have done if men had thought
    with their heads rather than with their dicks.
    In my opinion, you are wrong, and it is the great philosophers who are right >> when they talk about human madness (that is to say, the majority who, for probably
    jealous reasons, disgust or prevent progress from advancing more quickly).


    So we have to confront ONE real world, with bad and good things, that it what it
    is
    to a fantasy world in the mind of a single, uneducated, histrionic, dishonest and
    megalomaniac retired M.D.

    Let us take time to decide :-)

    To add one point:

    While we went from stones to computers, and the great philosophers you'd mentioned were all
    very aware of that, people of your kind are doing WHAT? Nothing bug
    bragging.

    You are exactly the kind of people you pretend to despise.

    Projecting.

    Most of us, down here, do not pretend to be "geniuses" (as you do) while
    doing
    absolutely nothing of value. We add to the edifice, and - also - can point
    out
    what is wrong, in our judgement, when we want.

    The difference between you and a "normal" person: A normal person does not despise
    the whole of Humanity across its whole existence.

    --- SoupGate-Win32 v1.05
    * Origin: fsxNet Usenet Gateway (21:1/5)
  • From Maciej Wozniak@21:1/5 to All on Wed Oct 2 06:55:48 2024
    W dniu 02.10.2024 o 00:25, Python pisze:
    Le 02/10/2024 à 00:13, Richard Hachel  a écrit :
    Le 01/10/2024 à 23:56, Python a écrit :
    Your "diagrams" are utterly idiotic.

    This beauty and this scientific truth seem to hurt the eyes.

    We have been living in a crazy world since antiquity.


    A crazy world where were conceived and build steam engines, trains,
    cars,
    planes, rockets, atomic bombs (oops), nuclear power plants. We
    travelled to the
    Moon and back, launched satellites, created computers, vaccines and
    radars.

    Not that bad for a "crazy world", don't you think?

    That's easy to say.
    Personally, I think the opposite and often people comfort me by
    saying: "If men weren't so crazy, we would be technologically
    millennia ahead".
    That's probably very true.
    Of course, what you say is true: it's not so bad.
    But the truth still makes you want to cry.
    I don't mean that we are far behind what we could have done if men had
    thought with their heads rather than with their dicks.
    In my opinion, you are wrong, and it is the great philosophers who are
    right when they talk about human madness (that is to say, the majority
    who, for probably jealous reasons, disgust or prevent progress from
    advancing more quickly).


    So we have to confront ONE real world, with bad and good things, that it
    what it is
    to a fantasy world in the mind of a single, uneducated, histrionic,
    dishonest and
    megalomagniac retired M.D.

    And to confront it to a fanrtasy word
    of a bunch of mad religious maniacs
    worshipping an insane, mumblig inconsistently
    guru as well.

    --- SoupGate-Win32 v1.05
    * Origin: fsxNet Usenet Gateway (21:1/5)
  • From Maciej Wozniak@21:1/5 to All on Wed Oct 2 06:53:02 2024
    W dniu 01.10.2024 o 23:56, Python pisze:
    Le 01/10/2024 à 21:11, Richard Hachel  a écrit :
    Le 01/10/2024 à 20:47, hitlong@yahoo.com (gharnagel) a écrit :
    On Tue, 1 Oct 2024 15:55:04 +0000, ProkaryoticCaspaseHomolog wrote:


    And you haven't acknowledged your confusion about what frame
    is the "stationary" one in the right and left figures.  Just
    proclaiming a frame as stationary doesn't make it so, particularly
    when you draw its time axis skewed.

    It is true that this mania for drawing oblique axes with all the
    possible fancies is absolutely distressing.

    But that is not the worst.

    The worst is that they think, probably with conviction, that not only
    should the world be made as they draw it, but that in addition their
    stupid lines are very beautiful.

    We then enter into what future generations will call the relativistic
    crime, which does not consist in being wrong (everyone has the right
    to be wrong) but in spitting on Doctor Hachel who had given them
    everything, from the resolution of the Langevin paradox, to the
    resolution of the Ehrenfest paradox, including the developed equations
    of uniformly accelerated frames of reference.

    That is what is worthy of making one bray like a donkey.

    I have again shown by two very simple diagrams, here, on September 27
    at 5:04 p.m. that it was much more beautiful and especially much more
    correct to draw horizontal lines of simultaneity.

    Your "diagrams" are utterly idiotic.

    This beauty and this scientific truth seem to hurt the eyes.

    We have been living in a crazy world since antiquity.


    A crazy world where were conceived and build steam engines, trains, cars, planes, rockets, atomic bombs (oops), nuclear power plants. We travelled
    to the
    Moon and back, launched satellites, created computers, vaccines and radars.

    And we have GPS, too, where improper clocks
    keep measuring t'=t, just like serious clocks
    always did.
    How fortunate we've ignored your idiot guru's
    teachings.

    --- SoupGate-Win32 v1.05
    * Origin: fsxNet Usenet Gateway (21:1/5)
  • From gharnagel@21:1/5 to ProkaryoticCaspaseHomolog on Thu Oct 3 03:04:17 2024
    On Wed, 2 Oct 2024 22:26:50 +0000, ProkaryoticCaspaseHomolog wrote:

    On Tue, 1 Oct 2024 22:18:12 +0000, gharnagel wrote:

    On Tue, 1 Oct 2024 19:24:31 +0000, ProkaryoticCaspaseHomolog wrote:

    I have told you several times that I am designating the S' as
    stationary, in addition to plainly stating that fact in my drawing.

    And then you "moved" the lab frame and pretended S' was still
    stationary, which is contradicted by the fact that the t' and
    x' axes are no longer orthogonal.

    ======================================================================
    Why do you have such difficulty with a ***SIMPLE*** mental switch?
    The x' and t' axes are tilted because our S frame is moving.
    Our x and t axes are orthogonal from OUR point of view.

    Exactly, OUR POV. That means WE have located ourselves at rest
    WRT the S frame. Previously, we were at rest in the S' frame.
    We have switched frames. Why do you have such difficulty with a
    ***SIMPLE*** factual switch?

    Look, if you want the S frame to be stationary and the S' frame
    to be moving, your are perfectly free to do this ***TRIVIAL***
    switch. Physically it makes no difference.

    This is exactly what you did, as evidenced by the skewed t' and
    x' axes. Look you show the signal arrow horizontal in all three
    panels. That is wrong. If the t' and x' axes are skewed, the
    signal arrow will be, too, if it's the same signal arrow. Since
    you drew them all horizontal, that means they're not the same
    signal. If you believe that is my thesis then understand it you
    do not (Says Yoda).

    I only wanted the S' frame to be stationary because I wanted
    eventually for you to be able to envision the S' frame to be
    surrounded by an INFINITY of moving observers, all of whom
    have a different view of the emission and receipt events,
    disagreeing on their order. ======================================================================

    Stationary and moving are arbitrary by the first principle, of
    course, but the views in panels one and three are from the view
    of an observer at rest (stationary) in the lab frame S. So things
    aren't exactly the same: RoS is not the same. Do you need proof
    of that, or can you figure that out for yourself?

    Our frame, the S frame, is moving.

    If it's "our" frame, then we are stationary by the first principle.

    ======================================================================
    No. We are NOT obligated always to make ourselves the stationary
    observer.

    By the first principle, we are by necessity, "We" are always
    stationary. We can have other observers in the lab but "We"
    aren't there. You have put "Us" in three different frames.

    As to showing the order of events, all those dots are extreme
    overkill. Properly chosen S and S' frames are sufficient. I
    believe it's time for something from by collection of proverbs:

    “Don’t think too much. You’ll create a problem that wasn’t even
    there in the first place.” – Anon.

    [Yes, I'm aware of your many contributions to Wiki] ======================================================================

    Anyway, you had so many dots I couldn't tell what was what. A
    simple plot would have been sufficient showing a signal arrow
    pointing downward as viewed from a frame, as shown in Figure 2
    of DOI: 10.13189/ujpa.2023.170101. But let's take your version,
    completely from the perspective of C and D.

    B (at t = vL/c^2 adjacent to D) observes that D sends a signal
    at t' = 0 to C at t' = 0. A, adjacent to C at t = 0, observes
    that C receives it. Does A know that this message came from his
    future? Not until B sends a message telling him so.

    So C passes a message to A and A now has a message, purportedly
    from his future (but he doesn't know it). He sends it to B.

    If A sends it to B at u = c^2/v to D, D receives the message
    immediately as he sent it. No causality violation.

    Could A have sent it to B infinitely fast? Not from the
    perspective of C and D because B is at t = vL/c^2, NOT at
    t = 0 in the frame that we started the analysis, in which
    we are required to remain!

    We could analyze from the perspective of A and B, but still no
    causality violation. My thesis is that tachyon velocity can
    be c < u < \infty, but a closed loop cannot violate causality.

    Okay, the rest of this is rechewing the fat, so let's skip to
    your last comment:

    This is ridiculous. AMONG OTHER THINGS, the moving observer is not
    attempting to observe the tachyons directly, but is observing the
    READOUTS of the tachyon emitters and receivers. At any subluminal v,
    there can be no limitation on the observers' ability to monitor their READOUTS. ======================================================================

    No problem with that, so your claim that "this is ridiculous" is
    a bit over the top. What A observes in the above scenario is that
    C obtains a message at t = t' = 0. A reads the message and
    passes it to B. We're observing from the frame where AB are at
    rest, so B waits until D is adjacent ( at t = vl/c^2). But
    the time at C is NOT zero, so D can't send it to C at t' = 0!
    RoS is a bitch, baby.

    --- SoupGate-Win32 v1.05
    * Origin: fsxNet Usenet Gateway (21:1/5)
  • From gharnagel@21:1/5 to ProkaryoticCaspaseHomolog on Thu Oct 3 09:17:40 2024
    On Thu, 3 Oct 2024 7:57:10 +0000, ProkaryoticCaspaseHomolog wrote:

    On Thu, 3 Oct 2024 3:04:17 +0000, gharnagel wrote:

    On Wed, 2 Oct 2024 22:26:50 +0000, ProkaryoticCaspaseHomolog wrote:

    Why do you have such difficulty with a ***SIMPLE*** mental switch?
    The x' and t' axes are tilted because our S frame is moving.
    Our x and t axes are orthogonal from OUR point of view.

    Exactly, OUR POV. That means WE have located ourselves at rest
    WRT the S frame. Previously, we were at rest in the S' frame.
    We have switched frames. Why do you have such difficulty with a ***SIMPLE*** factual switch?

    You are stuck with some sort of language difficulty.

    It is more than a "language" difficulty. The frame in which time
    and space axes are orthogonal IS the frame in which "WE" are at
    rest. In the center panel of the top trio, "WE" are at rest in
    the S frame. In the left panel, "WE" are at rest in the S' frame.
    In the right panel "WE" are at rest in the S'' frame. In order
    to do that, "WE" had to undergo significant acceleration: "WE"
    switched frames.

    The three panels show S and S' in different states of motion with
    respect to each other. There is no such thing as an absolute state
    of motion, but I just happen to arbitrarily designate one frame or
    other as the "stationary" frame.

    See the attached figure 1.

    1) In the left panel, I can arbitrarily designate the S frame as
    "stationary" and the S' frame as moving at 0.1c to the left
    relative to the S frame.

    That's fine. But please realize that when We view a scene from
    S and then from S' We have moved to a different frame, and that
    means We have switched frames. It is of utmost importance to
    understand this.

    2) Alternatively, I can arbitrarily designate the S' frame as
    "stationary" and the S frame (which includes us) as moving at
    0.1c to the right relative to the S' frame.
    3) Absolute speeds are meaningless. The designation of one frame or
    the other as "stationary" is arbitrary. The important measure is
    their relative states of motion.

    4) In the middle panel, I can arbitrarily designate the S frame as
    "stationary" and the S' frame as moving at 0c relative to the S
    frame.
    5) Alternatively, I can designate the S' frame as "stationary" and
    the S frame (which includes us) as moving at 0c relative to the S'
    frame.
    6) Absolute speeds are meaningless. The designation of one frame or
    the other as "stationary" is arbitrary. The important measure is
    their relative states of motion.

    7) In the right panel, I can arbitrarily designate the S frame as
    "stationary" and the S' frame as moving at 0.1c to the right
    relative to the S frame.
    8) Alternatively, I can arbitrarily designate the S' frame as
    "stationary" and the S frame (which includes us) as moving at
    0.1c to the left relative to the S' frame.
    9) Absolute speeds are meaningless. The designation of one frame or
    the other as "stationary" is arbitrary. The important measure is
    their relative states of motion.

    Certainly, but you must understand that you are switching frames
    when you view the problem from S and then S', or vice versa.

    See attached figure 3.

    The dots represent spacetime events in S', mapped onto S using
    the inverse Lorentz transformation.

    And viewing from S' means you have switched from being at rest
    in S to being at rest in S'. You felt no acceleration only
    because this is a thought experiment, but switch frames you did.

    In the left panel, the immediate context of the receiving event
    includes events 1, 2 and 6.

    There are no events indicated, so your meaning is very unclear.
    In any case, they do not represent my thesis.

    If, to prevent the formation of causality loops, you apply your
    speed limit to superluminal velocities, the immediate context
    of the receiving event is shifted to include events 4, 5 and 8.

    The speed of a communication signal is irrelevant. As you say,
    the position of the events change only because they're viewed
    by observers in different frames, but you continue to ignore
    the paramount importance of RoS.

    The context of the receiving event shifts for EVERY observer
    moving at a different speed relative to S'. This is absurd.

    What is absurd is that you continue to misrepresent my whole thesis.
    Your panels are caricatures of it, straw men. You ignore the
    explanation I have presented and continue asserting your own
    flawed interpretation.

    Perhaps it would be best to start a new thread and deal with
    the figures in DOI: 10.13189/ujpa.2023.170101. What do you say?

    --- SoupGate-Win32 v1.05
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  • From gharnagel@21:1/5 to Athel Cornish-Bowden on Fri Sep 27 04:05:54 2024
    On Thu, 26 Sep 2024 15:09:32 +0000, Athel Cornish-Bowden wrote:

    On 2024-09-26 12:44:21 +0000, gharnagel said:

    On Wed, 25 Sep 2024 15:57:46 +0000, Athel Cornish-Bowden wrote:

    On 2024-09-25 15:34:35 +0000, gharnagel said:

    Actually, it might be correct.

    Yes, but it's still not something drawn by Minkovski.

    It wasn't drawn by Einstein or Poincare, either. They're all
    dead. It is, however, a Minkowski diagram,

    No one sai it wasn't, but "Dr" Hachel's question was "Did you see where Minkowski places his simultaneity plans?" clearly indicating that he
    thinks Minkovski drew it.

    Oh, come on! You are taking what he says too literally. I took
    it as metaphorically. I assumed you would have understood that
    once I wrote my reply.

    --- SoupGate-Win32 v1.05
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  • From gharnagel@21:1/5 to ProkaryoticCaspaseHomolog on Thu Oct 3 13:39:42 2024
    On Thu, 3 Oct 2024 12:18:55 +0000, ProkaryoticCaspaseHomolog wrote:

    On Thu, 3 Oct 2024 9:17:40 +0000, gharnagel wrote:

    On Thu, 3 Oct 2024 7:57:10 +0000, ProkaryoticCaspaseHomolog wrote:

    You are stuck with some sort of language difficulty.

    It is more than a "language" difficulty. The frame in which time
    and space axes are orthogonal IS the frame in which "WE" are at
    rest. In the center panel of the top trio, "WE" are at rest in
    the S frame. In the left panel, "WE" are at rest in the S' frame.
    In the right panel "WE" are at rest in the S'' frame. In order
    to do that, "WE" had to undergo significant acceleration: "WE"
    switched frames.

    NO NO NO NO NO!!!!

    See Figure 4

    WHAT is "Figure 4"? Is that your new attachment?

    Let us change the description of the diagram slightly to one that
    you might agree with better.

    The emission of a signal from D and its receipt by C in the S'
    frame is being concurrently monitored by observers 1, 2, and 3
    in frames S1, S2, and S3.

    Three "outside" observers of the same events. No frame jumping.

    Any objections to that?

    Just as long as when an analysis is performed, it is done from
    one frame, it doesn't matter which one.

    "An extremely important strategy in solving relativity problems
    is to plant yourself in a frame and stay there. The only thoughts
    running through your head should be what you observe. That is,
    don’t try to use reasoning along the lines of, 'Well, the person
    I’m looking at in this other frame sees such-and-such.' This will
    almost certainly cause an error somewhere along the way, because
    you will inevitably end up writing down an equation that combines
    quantities that are measured in different frames, which is a no-no.
    -- David Morin, "Introduction to Classical Mechanics," p. 522.

    "one should never mix together the descriptions of one phenomenon
    yielded by different observers, otherwise--even in ordinary
    physics-- one would immediately meet contradictions"
    -- E. Recami, "Classical Tachyons and Possible Applications,"
    Rivista Del Nuovo Cimento, 9:6 (1986), p. 66.

    The emission event occurs at (x',t') = (D,0)
    The receipt event occurs at (x',t') = (C,0)

    1, 2, and 3 are all stationary within their own frames.

    If you understand the relabeled diagram, please look at my other
    discussions with this improved understanding.

    I have no problem with the attached figure except that it labels
    the panels S', S' and S' whereas in the above text you define
    observers 1, 2 and 3 in frames S1, S2 and S3. I agree with your
    labeling in the text.

    I do have a problem that you seem to believe that WE can switch
    views from one panel to another with impunity. When WE look at
    the first panel, WE have adopted the perspective of observer 1
    in S1, etc. So stay there and solve the problem. In panel 1,
    the arrow is observed by observer 1 as moving at u1 = -c^2/v.
    In panel 2, it is observed by observer 2 as u2 = - \infty. In
    panel 3, it is not observed by observer 3 if he only has a basic
    tachyon receiver. This is because tachyon energy is frame
    dependent and
    E = mc^2/sqrt(u^2/c^2 - 1) in S2, where u = -\infty. Therefore
    E = 0. (We're assuming this as a limit for analysis purposes).
    In S1, D is moving toward the observer's receiver, so the signal
    relative to S1 is E > 0. Essentially it's a Doppler effect.

    In S3, however, D is moving AWAY from observer 3, the energy goes
    down. Is it negative? The 4-momentum formalism says yes, but it
    is mathematically incorrect in the situation. However, one can
    assume, in a sense, that it is negative energy, which can't activate
    the receiver at rest in S3.

    As you say, the observer in S3 knows that C received a signal. If
    there were two observers in S3, A and B (B adjacent to D when D
    launched the signal and A adjacent to C when C received the signal),
    then A would know that C received a signal at tA = 0 (tC' = 0)
    and B would know that D sent a signal at tB = vL/c^2 (tB' = 0).

    They don't know that it's the same signal. So let's say there
    was a message in the signal that D sent to C, and C passed that
    message to A, and A sent it to B at u = \infty. So B gets it at
    tB = 0, but B isn't adjacent to D, so B must wait until tB = vL/c^2
    to pass it to D. D receives it just as D sent it (or a bit after
    because of energy considerations - receivers must have SOME energy
    to work on, therefore u < \infty). No causality problem.

    --- SoupGate-Win32 v1.05
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  • From gharnagel@21:1/5 to All on Thu Oct 3 17:41:25 2024
    An addendum to my previous post:

    I only discussed HALF of the necessary analysis. In order to prove
    that a solution is consistent (i.e, a closed loop solution is found
    which does not violate RoS), it must be so from the perspective of
    A and B as well as from the perspective of C and D.

    Your schema does so with infinite speed tachyons in both frames.
    Other arrangements are not so forgiving. Some are consistent in
    one frame, but not in the other when obeying RoS. In that case,
    a closed loop is not a valid solution. There are several examples
    of this type.

    --- SoupGate-Win32 v1.05
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  • From gharnagel@21:1/5 to ProkaryoticCaspaseHomolog on Fri Sep 27 14:19:35 2024
    On Fri, 27 Sep 2024 11:44:56 +0000, ProkaryoticCaspaseHomolog wrote:

    On Fri, 27 Sep 2024 4:05:54 +0000, gharnagel wrote:

    On Thu, 26 Sep 2024 15:09:32 +0000, Athel Cornish-Bowden wrote:

    No one sai it wasn't, but "Dr" Hachel's question was "Did you
    see where Minkowski places his simultaneity plans?" clearly
    indicating that he thinks Minkovski drew it.

    Oh, come on! You are taking what he says too literally. I took
    it as metaphorically. I assumed you would have understood that
    once I wrote my reply.

    Sloppiness of expression often reflects sloppiness in thinking. "Metaphorical" attribution of visual/textual/oral quotes to others,
    even if "in spirit" the quotes may be correct, is improper.

    "The French don't care what they do actually, as long as they
    pronounce it properly."

    Why not focus on where Hachel is WRONG, rather than merely "sloppy"?

    He was using the so-called "gap" in the traveler's simultaneity lines
    to "prove" that wiki got it wrong. Sort of like what YOU did last
    year when you falsely dissed my paper on tachyons. Remember?

    --- SoupGate-Win32 v1.05
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  • From Richard Hachel@21:1/5 to All on Fri Sep 27 14:43:08 2024
    Le 27/09/2024 à 16:19, hitlong@yahoo.com (gharnagel) a écrit :
    "The French don't care what they do actually, as long as they
    pronounce it properly."

    Why not focus on where Hachel is WRONG, rather than merely "sloppy"?

    He was using the so-called "gap" in the traveler's simultaneity lines
    to "prove" that wiki got it wrong. Sort of like what YOU did last
    year when you falsely dissed my paper on tachyons. Remember?

    If you write an article about tachyons, it is because you have not
    understood anything about the theory of relativity.

    That is to say, the notion of the relativity of simultaneity.

    In Richard Hachel, the notion of tachyon is totally absurd.
    It is not that it is impossible, it is that it is absurd.

    In Hachel, the notion of photon is an instantaneous interaction between
    two points of their spacetime, and especially of the receiver's spacetime.
    In the receiver's frame of reference there is a hyperplane of present time where the transaction is instantaneous.

    Looking for a transaction faster than an instantaneous transaction is
    absurd.

    The notion of tachyon is therefore absurd, it would have to leave after arriving, and that has no physical meaning in well-understood relativity.

    R.H.

    --- SoupGate-Win32 v1.05
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  • From Richard Hachel@21:1/5 to All on Fri Sep 27 15:09:12 2024
    Le 27/09/2024 à 16:59, tomyee3@gmail.com (ProkaryoticCaspaseHomolog) a
    écrit :
    On Fri, 27 Sep 2024 14:43:08 +0000, Richard Hachel wrote:

    The notion of tachyon is therefore absurd, it would have to leave after
    arriving, and that has no physical meaning in well-understood
    relativity.

    Which you do not understand. Sorry.

    Vo=Vr/sqrt(1+Vr²/c²)

    If Vr---> ∞ then Vo=c

    La vitesse observable de la lumière et de toute loi physique est infranchissable.

    Cette vitesse étant déjà infinie dans le référentiel du récepteur
    (dans son hyperplan de simultanéité).

    C'est pourtant très simple.


    --
    Ce message a été posté avec Nemo : <https://www.nemoweb.net/?DataID=V_I6UdUDWnhlZ_eHry6gcNL4hZs@jntp>

    --- SoupGate-Win32 v1.05
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  • From gharnagel@21:1/5 to Richard Hachel on Fri Sep 27 21:52:31 2024
    On Fri, 27 Sep 2024 15:09:12 +0000, Richard Hachel wrote:

    Le 27/09/2024 à 16:59, tomyee3@gmail.com (ProkaryoticCaspaseHomolog)
    a écrit :

    On Fri, 27 Sep 2024 14:43:08 +0000, Richard Hachel wrote:

    The notion of tachyon is therefore absurd, it would have to
    leave after arriving, and that has no physical meaning in
    well-understood relativity.

    Which you do not understand. Sorry.

    Vo=Vr/sqrt(1+Vr²/c²)

    If Vr---> ∞ then Vo=c

    It doesn't take a degree in mathematics to know that as Vr---> ∞,
    Vo in your equation approaches zero, not c.

    La vitesse observable de la lumière et de toute loi physique est infranchissable.

    Cette vitesse étant déjà infinie dans le référentiel du récepteur
    (dans son hyperplan de simultanéité).

    C'est pourtant très simple.

    What is très simple is that the speed of light is measured as c,
    not infinity. In four-vector SR, a "four-velocity" is presumed
    which is v/sqrt(1 - v^2/c^2), but I look upon it as an affectation.

    --- SoupGate-Win32 v1.05
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  • From gharnagel@21:1/5 to ProkaryoticCaspaseHomolog on Fri Sep 27 21:41:39 2024
    On Fri, 27 Sep 2024 14:33:39 +0000, ProkaryoticCaspaseHomolog wrote:

    On Fri, 27 Sep 2024 14:19:35 +0000, gharnagel wrote:

    Why not focus on where Hachel is WRONG, rather than merely "sloppy"?

    He was using the so-called "gap" in the traveler's simultaneity lines
    to "prove" that wiki got it wrong. Sort of like what YOU did last
    year when you falsely dissed my paper on tachyons. Remember?

    LOTS of people dissed your paper from different standpoints, not
    just me.

    The only other persons that I'm aware of was (1) dono, and his
    assertions were clearly false, too, and (2) Athel, who criticized
    where the paper was published and who wrote it rather than on the
    content of the paper.

    Like too many others, you seem unable to comprehend legitimate
    criticism of your pet notions to which you have devoted years of
    your life.

    Pot, kettle, black Prok.

    Your two criticisms were false. In the first one you claimed

    u > c^2/v cannot mean that a tachyon becomes undetectable because
    all particles must be observable in a frame.

    The answer to your criticism:

    Of course, an observer must use instruments to observe particles,
    so a method of observing particles which have u > c^2/v was
    described in the very paper that you were criticizing:
    DOI: 10.13189/ujpa.2023.170101.

    Your second criticism was that that imaginary mass means that
    tachyons have imaginary energy and momentum.

    This, of course, is also false. Discerning physicists know that
    imaginary mass of tachyons was hypothesized to counter an imaginary
    sqrt(1 - u^2/c^2) in the denominator of equations for energy and
    momentum when u > c. This was the BASIC proposal by Bilaniuk et al
    (19620 which allowed tachyon energy and momentum to be real.

    As for dono asserting that "effective mass" measured in beta decay
    experiments wasn't the "true" mass of neutrinos, this is basically
    correct, but it's an insignificant difference. He was quite
    confused about how the neutrino eigenvalues correspond to the
    neutrino flavors and the mechanics of the measurement of m_eff^2.
    He had some other wild assertions, but they were nonsense. In
    any case, I know of no legitimate criticisms.

    SO these are the only "criticisms" of DOI: 10.13189/ujpa.2023.170101
    (other than Athel's which was, basically, a type of attack on the
    messenger rather than the message).

    So if you are aware of any other criticisms, I would really like to
    know about them. The only type of criticism that is possible, IMHO,
    is that it's classical physics rather than quantum physics.

    I believe that QFT has a long way to go to be able to deal properly
    with tachyons. A recent paper has come the closest to doing this:

    "Covariant quantum field theory of tachyons" Phys. Rev. D, 110,
    015006, (2024). DOI: 10.1103/PhysRevD.110.015006.
    arXiv:2308.00450v2.

    They have a rather extensive history of previous attempts at
    quantization of tachyons and why they failed.

    --- SoupGate-Win32 v1.05
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  • From Richard Hachel@21:1/5 to All on Sat Sep 28 00:23:18 2024
    Le 27/09/2024 à 23:52, hitlong@yahoo.com (gharnagel) a écrit :
    On Fri, 27 Sep 2024 15:09:12 +0000, Richard Hachel wrote:

    Le 27/09/2024 à 16:59, tomyee3@gmail.com (ProkaryoticCaspaseHomolog)
    a écrit :

    On Fri, 27 Sep 2024 14:43:08 +0000, Richard Hachel wrote:

    The notion of tachyon is therefore absurd, it would have to
    leave after arriving, and that has no physical meaning in
    well-understood relativity.

    Which you do not understand. Sorry.

    Vo=Vr/sqrt(1+Vr²/c²)

    If Vr---> ∞ then Vo=c

    It doesn't take a degree in mathematics to know that as Vr---> ∞,
    Vo in your equation approaches zero, not c.

    I advise you to draw a curve of the given equation, and see what any
    infinite real speed tends towards in an anisochronous universe.

    In France, our experts in mathematics seem to say that
    Vo=Vr/sqrt(1+Vr²/c²) tends towards c.

    "Va donc exister une vitesse limite infranchissable qui va s'étendre à toutes les particules et toutes les lois de la physique."
    Docteur Richard Hachel, novembre 1986.

    R.H.

    --- SoupGate-Win32 v1.05
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  • From gharnagel@21:1/5 to Richard Hachel on Sat Sep 28 01:10:46 2024
    On Sat, 28 Sep 2024 0:23:18 +0000, Richard Hachel wrote:

    Le 27/09/2024 à 23:52, hitlong@yahoo.com (gharnagel) a écrit :

    On Fri, 27 Sep 2024 15:09:12 +0000, Richard Hachel wrote:

    Le 27/09/2024 à 16:59, tomyee3@gmail.com (ProkaryoticCaspaseHomolog)
    a écrit :

    On Fri, 27 Sep 2024 14:43:08 +0000, Richard Hachel wrote:

    The notion of tachyon is therefore absurd, it would have to
    leave after arriving, and that has no physical meaning in well-understood relativity.

    Which you do not understand. Sorry.

    Vo=Vr/sqrt(1+Vr²/c²)

    If Vr---> ∞ then Vo=c

    It doesn't take a degree in mathematics to know that as Vr---> ∞,
    Vo in your equation approaches zero, not c.

    I advise you to draw a curve of the given equation, and see what any
    infinite real speed tends towards in an anisochronous universe.

    "anisochronous" is a buzzword devoid of rational meaning.

    In France, our experts in mathematics seem to say that
    Vo=Vr/sqrt(1+Vr²/c²) tends towards c.

    I can only see what I see, and I doubt you are being honest.

    "Va donc exister une vitesse limite infranchissable qui va s'étendre à toutes les particules et toutes les lois de la physique."
    Docteur Richard Hachel, novembre 1986.

    R.H.

    Don't quote yourself as an "expert" in mathematics because you're
    not. Neither are you an expert in relativity.

    --- SoupGate-Win32 v1.05
    * Origin: fsxNet Usenet Gateway (21:1/5)
  • From Richard Hachel@21:1/5 to All on Sat Sep 28 01:21:59 2024
    Le 28/09/2024 à 03:10, hitlong@yahoo.com (gharnagel) a écrit :
    On Sat, 28 Sep 2024 0:23:18 +0000, Richard Hachel wrote:

    Vo=Vr/sqrt(1+Vr²/c²)

    If Vr---> ∞ then Vo=c

    It doesn't take a degree in mathematics to know that as Vr---> ∞,
    Vo in your equation approaches zero, not c.

    In France, our experts in mathematics seem to say that
    Vo=Vr/sqrt(1+Vr²/c²) tends towards c.

    I can only see what I see, and I doubt you are being honest.

    Don't quote yourself as an "expert" in mathematics because you're
    not. Neither are you an expert in relativity.

    Pffffff...

    Well...

    You say that the equation does not tend to c if Vr is infinite.

    Let's take Vr very large, example Vr=1000c

    Let's set Vo=Vr/sqrt(1+Vr²/c²)

    Vo=1000c/sqrt(1+1000²)

    Vo=(1000/1000.0005)c=0.9999995c

    And the higher you go, the more it tends to c.

    R.H.

    --- SoupGate-Win32 v1.05
    * Origin: fsxNet Usenet Gateway (21:1/5)
  • From gharnagel@21:1/5 to Richard Hachel on Sat Sep 28 03:09:14 2024
    On Sat, 28 Sep 2024 1:21:59 +0000, Richard Hachel wrote:

    Le 28/09/2024 à 03:10, hitlong@yahoo.com (gharnagel) a écrit :

    On Sat, 28 Sep 2024 0:23:18 +0000, Richard Hachel wrote:

    Vo=Vr/sqrt(1+Vr²/c²)

    If Vr---> ∞ then Vo=c

    It doesn't take a degree in mathematics to know that as Vr---> ∞,
    Vo in your equation approaches zero, not c.

    In France, our experts in mathematics seem to say that Vo=Vr/sqrt(1+Vr²/c²) tends towards c.

    I can only see what I see, and I doubt you are being honest.

    Don't quote yourself as an "expert" in mathematics because you're
    not. Neither are you an expert in relativity.

    Pffffff...

    Well...

    You say that the equation does not tend to c if Vr is infinite.

    Let's take Vr very large, example Vr=1000c

    Let's set Vo=Vr/sqrt(1+Vr²/c²)

    Vo=1000c/sqrt(1+1000²)

    Vo=(1000/1000.0005)c=0.9999995c

    And the higher you go, the more it tends to c.

    R.H.

    I'm sorry, I didn't recognize the Vr in the numerator as
    being the same as that in the denominator.

    As I see now, the equation is actually quite similar to the
    equation for tachyon momentum: p = mv/sqrt(v^2/c^2 - 1),
    which follows from extending SR into the new domain of v > c.
    So, it seems, that you are supporting tachyons while trying
    to deny them :-)

    --- SoupGate-Win32 v1.05
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  • From J. J. Lodder@21:1/5 to gharnagel on Sat Sep 28 09:11:45 2024
    gharnagel <hitlong@yahoo.com> wrote:

    On Wed, 25 Sep 2024 10:28:12 +0000, Athel Cornish-Bowden wrote:

    On 2024-09-25 00:27:09 +0000, Richard Hachel said:

    I stumbled upon this on Wikipedia...

    I don't know whether to laugh or cry...

    Did you see where Minkowski places his simultaneity plans?

    But that's not it!!!

    That's not it AT ALL!!!


    <http://nemoweb.net/jntp?Ev7wMrtKlxguxDn1RDUke8-o3Zo@jntp/Data.Media:1>

    That's clearly not Minkowski's diagram (did he have suitable drawing software in the 19th century?), but someone's interpretation of it. I
    hope you're not adopting Thomas Heger's habit of lying about who wrote what.

    It is of course obvious to Hachel (and nobody else)
    that nobody could draw a diagram in the 19th century
    because of their lack of 'suitable drawing software'

    Jan

    --- SoupGate-Win32 v1.05
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  • From Thomas Heger@21:1/5 to All on Sat Sep 28 10:50:58 2024
    Am Donnerstag000026, 26.09.2024 um 16:22 schrieb Richard Hachel:
    Le 26/09/2024 à 08:25, Thomas Heger a écrit :

    this wasn't my diagram, but looks actually correct.

    My own explanation for the so called twin paradox was a bit similar,
    but based on the idea, that acceleration causes the relativistic
    effects and not velocity.

    Such a travel would cause a situation, where a spaceship gets
    accelerated from - say- Earth, to reach a certain travel velocity to a
    distant star and a planet there.

    Then the spaceship gets decelerated in order to land there.

    Then the spaceship starts from there, travels back to Earth and needs
    to decelerate here.

    This requires four instances of acceleration (two positive and two
    negative), which should cancel the effect.


    ...

    TH

    Les accélérations n'ont rien à voir dans l'histoire.

    Leur seul intérêt est de faire changer de référentiel, c'est à dire, de CHRONOTROPIE et de métrique.

    Rien à voir avec ce qui se passe après.

    Car tout se passe APRES. Et dans les longs segments de vitesses
    relatives uniformes.
    Il ne faut pas se soucier des accélérations, elle ne sont que peu de
    choses sur peu de durées si l'on se concentre sur les temps totaux enregistrés.

    Le time-gap, je le répète, c'est de la poussière sous le tapis. Ca n'existe ni pour Terrence, ni pour Stella si l'on comprend bien ce que
    l'on est en train de définir.

    C'est de l'idéologie minkowskienne, ça.
    R.H.

    "Accelerations have nothing to do with history.

    Their only interest is to change the frame of reference, that is to say, CHRONOTROPY and metric.

    Nothing to do with what happens after.

    Because everything happens AFTER. And in the long segments of uniform
    relative speeds.
    We should not worry about accelerations, they are only a small thing
    over a small duration if we focus on the total times recorded.

    The time gap, I repeat, is dust under the carpet. It does not exist for Terrence, nor for Stella if we understand what we are defining.

    That is Minkowskian ideology."

    Well, that's wrong.

    Apparently acceleration has an impact upon the flow of time, while
    velocity hasn't.

    One reason: several observations point in this direction (e.g. Havard
    Tower experiment, Pioneer anomaly).

    second: velocity is not defined in the dark, forcefree space of SRT.

    Therefore we need to put more emphasis on acceleration and forget v for
    a moment.

    TH

    --- SoupGate-Win32 v1.05
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  • From gharnagel@21:1/5 to gharnagel on Fri Oct 4 13:26:16 2024
    On Thu, 3 Oct 2024 17:41:25 +0000, gharnagel wrote:

    An addendum to my previous post:

    I only discussed HALF of the necessary analysis. In order to prove
    that a solution is consistent (i.e, a closed loop solution is found
    which does not violate RoS), it must be so from the perspective of
    A and B as well as from the perspective of C and D.

    Your schema does so with infinite speed tachyons in both frames.
    Other arrangements are not so forgiving. Some are consistent in
    one frame, but not in the other when obeying RoS. In that case,
    a closed loop is not a valid solution. There are several examples
    of this type.

    A further addendum: The analysis of panel 3, concluding that the
    closed loop elapsed time was zero was based on the conventional
    approach, which violates relativity of simultaneity. The question
    we must ask ourselves is, is it possible to violate RoS?

    The attached figure is panel 3 with the lab frame info added in green.
    In that frame the horizontal lines represent the points of simultaneity.
    That is, when A is at t = 0, B is at t = 0.

    However, C is also at t = 0 (t' = 0) AND D is ALSO at t = 0 (t' does
    MOT equal zero). RoS is baked into spacetime diagrams because they
    are representations of the LT equations.

    The blue arrow in the attachment shows the line of simultaneity for
    the CD frame (pontifically called the S frame). That arrow violates
    RoS in the lab frame. Prok seems to be under the mistaken impression
    that I am claiming that the blue arrow should look like a horizontal
    arrow in the lab frame. I am NOT! I am claiming that as far as the
    lab frame is concerned that the arrow in the lab frame is horizontal
    because the arrow in the S frame is going upward (violet arrow).

    I hope this puts to rest the hyper-ventilation expressed as "ripping
    spacetime to shreds!" It does, of course, deserves some cogitation
    about why D can't send an infinitely-fast signal to C.

    --- SoupGate-Win32 v1.05
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  • From gharnagel@21:1/5 to ProkaryoticCaspaseHomolog on Sat Oct 5 12:59:50 2024
    On Sat, 5 Oct 2024 7:42:59 +0000, ProkaryoticCaspaseHomolog wrote:

    On Fri, 4 Oct 2024 13:26:16 +0000, gharnagel wrote:
    ....
    The blue arrow in the attachment shows the line of simultaneity for
    the CD frame (pontifically called the S frame). That arrow violates
    RoS in the lab frame. Prok seems to be under the mistaken impression
    that I am claiming that the blue arrow should look like a horizontal
    arrow in the lab frame. I am NOT! I am claiming that as far as the
    lab frame is concerned that the arrow in the lab frame is horizontal because the arrow in the S frame is going upward (violet arrow).

    I hope this puts to rest the hyper-ventilation expressed as "ripping spacetime to shreds!" It does, of course, deserves some cogitation
    about why D can't send an infinitely-fast signal to C.

    Going through your Universal J. of Physics and Application paper,
    I am VERY much reminded of David Seppala, who constantly returned
    to these forums presenting the same two or three basic scenarios
    with a few new added complications that he hoped would show some inconsistency with special relativity.

    Oh, thank you VERY much!

    YOUR tactic is to add additional observers to basic, very well-
    known demonstrations of causality violation associated with
    superluminal signaling and to argue about what these additional
    observers are or aren't capable of seeing.

    This is basically a straw-man caricature of my thesis. In addition,
    you accuse me of adding observers when YOU add even more. Don't
    you see the irony of that?

    First of all, you do not appear to comprehend the modern usage
    of the word "observer". Otherwise you would not have written such
    absurdities as "Thus a signal cannot be sent round-trip in this
    configuration since A isn’t adjacent to C at t = vL/c2."

    And you STILL don't comprehend the subtleties. And rather than
    explaining why you BELIEVE my statement is absurd, you launch into
    a vapid response that doesn't get to the basic problem.

    Taylor and Wheeler discussed the modern concept of "observer" in
    Spacetime Physics. The classical usage of the word "observer" very
    often led to the same sort of reasoning difficulties that you exhibit,
    so they championed a revised definition.

    I'm well aware of this and have used it in explaining to Seppalas
    why their views are wrong. What you fail to understand is I have
    not limited my analysis to particular observer velocities as you
    have done in your triptychs.

    See Figure 2-6 from their textbook. https://www.eftaylor.com/spacetimephysics/02_chapter2.pdf
    For valid pedagogical reasons, their description is a bit verbose.

    In Wikipedia I explained the concept with somewhat fewer words as
    follows: (probably at least 95% my original wording.) ======================================================================
    | "Imagine that the frame under consideration is equipped with a
    | dense lattice of clocks, synchronized within this reference frame,
    | that extends indefinitely throughout the three dimensions of
    | space. Any specific location within the lattice is not important.
    | The latticework of clocks is used to determine the time and
    | position of events taking place within the whole frame. The term
    | observer refers to the whole ensemble of clocks associated with
    | one inertial frame of reference.

    | "In this idealized case, every point in space has a clock
    | associated with it, and thus the clocks register each event
    | instantly, with no time delay between an event and its recording.
    | A real observer, will see a delay between the emission of a signal
    | and its detection due to the speed of light. To synchronize the
    | clocks, in the data reduction following an experiment, the time
    | when a signal is received will be corrected to reflect its actual
    | time were it to have been recorded by an idealized lattice of
    | clocks." ======================================================================

    In the attached figure, I modified Taylor and Wheeler's diagram by
    placing a blue laptop computer in the lower righthand corner to which
    all of the clocks in the infinite lattice of clocks report the events
    that they have detected.

    Thank you for man-splainig yhe obvious.

    In a two-dimensional Minkowski diagram, I would diagram this concept
    with a dense line of black clocks, with one blue dot representing the
    laptop compouter.

    In your Figure 4, your propose that D should not be able to send the
    signal faster than u′ = −c^2/v.

    *** THIS IS STUPID ***

    Yes, it is. But you STILL don't understand, or you are just
    developing a straw-man. I have not limited the speed D can send
    the signal in general, only if a closed loop is required. Surely
    you understand that if we want a missile to collide with a target
    moving at v, its speed can be anything as long as it's greater
    than v; but if we want them to meet at a particular point, the
    number of options are greatly reduced.

    Frame S' is surrounded by an INFINITE number of other frames
    traveling at an INFINITY of different velocities v with respect
    to S'.

    And each one requires a different positioning of the observers
    in order to complete a loop. That's why I specify times
    as t = vL/c^2. If they want to communicate around a loop with
    D, L is not the same for them. As I said, you fail to understand
    the subtleties of the problem.

    You believe that just because they can receive the signal, my
    analysis falls apart. This is not so. I explained this in
    DOI: 10.13189/ujpa.2023.170101:

    "What about other observers traveling at some velocity v2? If
    v2 < v, the other observer can receive the signal and even
    participate (if he is in the proper initial position) without
    violating causality; and if v2 > v, that observer won’t be able
    to close the message loop unless the observers are properly
    positioned initially, in which case, causality will be preserved."

    I didn't go into a detailed explanation because that would
    distract from the main point of the paper. I left it as an
    exercise for competent readers.

    It is IMPOSSIBLE that the speed at which D can send a signal to
    C should in any way be dictated by relative speed v of any other
    frame because there are an infinite number of different v's to
    choose from.

    And I left v a parameter in my equations.

    If you think otherwise, you are nuts.

    You seem to be getting a bit upset, Prok :-(

    In my re-drawing of your Figure 4, D sends an infinite speed signal
    to C as measured in the S' frame. The signal includes a GUID, the
    globally unique identifier 87f01be4-0a75-4428-b296-409ca23312c4

    Sorry, I'm unfamiliar with those. I wondered what they were, but
    it seems that your verbose :-) explanation is irrelevant, anyway.

    The RECEIPT of the signal by C is detected up by the infinite array
    of clocks, and the time of this event and the GUID are transmitted
    to the blue laptop computer which I have drawn off to the side.

    The only way an interloper observer (F) can see that C has received
    the signal is for F to be adjacent to C when C receives the message.
    F is traveling at some velocity, v2. If v2 < v, then F can't receive
    the signal because Method I limitations apply. If v2 > v, then the
    speed of the signal isn't infinite, it is less and F can complete a
    message loop with D IF F has a cohort, G, adjacent with D at the
    proper time. We, of course, assume that he does. Anyway, the F
    frame loop can't violate causality by the same argument that the
    AB-CD loop can't.

    Several seconds later, the TRANSMISSION of the signal by D is
    detected by the same infinite array of clocks, and the time of this
    event and the GUID are transmitted the the blue laptop computer.

    An analysis program on the laptop computer notes that the transmission
    of the uniquely labeled event occurred after its receipt.

    *** THERE ARE NO WORRIES ABOUT WHO IS ADJACENT TO WHOM ***

    Au contraire, Prok. You should be worried because you STILL haven't
    grasped the complete picture. I hope mansplaining it to you hasn't
    gotten you any more upset.

    The logic of DOI: 10.13189/ujpa.2023.170101 is tighter than you
    believe, but not conclusive. I wish that we could get beyond the
    trivial things and discuss those.

    --- SoupGate-Win32 v1.05
    * Origin: fsxNet Usenet Gateway (21:1/5)
  • From Maciej Wozniak@21:1/5 to All on Sun Oct 6 15:41:00 2024
    W dniu 06.10.2024 o 15:23, gharnagel pisze:
    On Sun, 6 Oct 2024 12:00:55 +0000, ProkaryoticCaspaseHomolog wrote:

    Funny, I just explained why it does, but you deleted it and made an
    unproven assertion.

    Harrie, he is a relativistic idiot, just like you.
    What do you expect?

    --- SoupGate-Win32 v1.05
    * Origin: fsxNet Usenet Gateway (21:1/5)
  • From gharnagel@21:1/5 to ProkaryoticCaspaseHomolog on Sun Oct 6 13:23:07 2024
    On Sun, 6 Oct 2024 12:00:55 +0000, ProkaryoticCaspaseHomolog wrote:

    On Sat, 5 Oct 2024 12:59:50 +0000, gharnagel wrote:

    I have not limited the speed D can send the signal in general,
    only if a closed loop is required.

    The speed D does not depend on whether somebody is trying to set up
    a closed loop.

    Funny, I just explained why it does, but you deleted it and made an
    unproven assertion.

    And I left v a parameter in my equations.

    And why should v determine the physics of frame S'?

    It doesn't, of course. The physics of S' is not in question.
    The question is about interactions BETWEEN frames.

    For example, when a missile is sent after a target, it's speed
    must be greater than the target's speed.

    The logic of DOI: 10.13189/ujpa.2023.170101 is tighter than you
    believe, but not conclusive. I wish that we could get beyond the
    trivial things and discuss those.

    No point. I've wasted enough time on this thread.

    Then you should go to https://www.novabbs.com/tech/article-flat.php?id=137457&group=sci.physics.relativity#137457

    where energy considerations are discussed. I know, you've claimed
    that such does not apply to the kinematic discussion we've had here,
    but I've pointed out that SR is not limited to the LT and any
    conclusions about what can and cannot exist should not be limited
    merely to the LT.

    You are just like Dono, who also believed himself to be a defender of
    SP against the crackpots, yet was blind to defects in his own original research.

    Prok, I'm NOTHING like Dono (except that all three of us are
    human beings and that we have different views, some more correct
    than others). The FTL extrapolation of SR is

    E = mc^2/sqrt(u^2/c^ - 1) for tachyons, where the tachyon mass is
    im and u is the tachyon velocity in frame S. The range of u is
    -\infty < u < c, c < u \infty. By the Principle of Relativity (PoR),
    the tachyon velocity in frame S' is E' = mc^2/sqrt(u'^2/c^2 - 1),
    where u' has the same range as u.

    When S is related to S' using u' = (u - v)/(1 - uv/c^2), it so
    happens that the PoR is violated. The problem is in the term
    (1 - uv/c^2), which comes from dt' = \gamma (dt - vdx/c^2).

    Energy considerations prove that the LT equations have a limited
    domain of applicability for tachyons, and that means it applies
    to kinematics as well as dynamics.

    ======================================================================
    Kip Thorne established time travel and its associated paradoxes to be
    a legitimate field of research. I have nothing against the universe
    being FAR stranger than anything that I have ever believed. ======================================================================

    When considering the full SR argument, FTL doesn't violate causality.
    Since QFT is based on SR, it has the same problem with tachyons.
    Recent work is moving toward resolving that.

    GR is sort of a different animal, but take an Alcubierre metric.
    Spacetime is flat. A warp drive is turned on, it goes FTL from
    A to B, and the drive is turned off. Now spacetime is flat again,
    so SR is valid and Captain Kirk violates causality, or doesn't he?
    If my thesis is valid, then you can live in the Captain's universe.

    Your defective arguments, however, provide nothing worthwhile to
    consider.

    You seem SO certain, Prok :-)

    "What is not surrounded by uncertainty cannot be the truth."
    -- Richard Feynman

    “There are more things in heaven and earth, Horatio, than are dreamt
    of in your philosophy.” -- Shakespeare

    “I never learned from a man that agreed with me.” – Robert A. Heinlein

    “When you talk, you are only repeating what you already know.
    But if you listen, you may learn something new.” – Dalai Lama

    --- SoupGate-Win32 v1.05
    * Origin: fsxNet Usenet Gateway (21:1/5)