Groups | Search | Server Info | Keyboard shortcuts | Login | Register [http] [https] [nntp] [nntps]


Groups > sci.physics.relativity > #433115

Re: Train gedanken - again.

From HGW <HW@home.net>
Newsgroups sci.physics.relativity
Subject Re: Train gedanken - again.
Date 2017-09-21 09:05 +1000
Organization Aioe.org NNTP Server
Message-ID <opus8e$72i$1@gioia.aioe.org> (permalink)
References <opr46v$jhn$1@dont-email.me> <ops8jj$1rqc$1@gioia.aioe.org> <2403458.mvXUDI8C0e@PointedEars.de> <opsod0$im2$1@gioia.aioe.org> <5079786.DvuYhMxLoT@PointedEars.de>

Show all headers | View raw


On 20/09/17 22:33, Thomas 'PointedEars' Lahn wrote:
> HGW wrote:
> 

>> But your colleagues have insisted that the flashes have no 'places'.
> 
> First of all, they are not my colleagues.  

Well I cannot blame you for not wanting them....


>>>> Your observations assume the flashes were at rest with the ground and
>>>> moved at c in that frame.
>>> First of all, not the flashes are moving towards the observers,
>>> but the light from the flashes.
>>
>> Yes I have told everyone here about that.
> 
> But you have neglected to consider the simple, experimentally confirmed,
> fact that light does not propagate instantly, and that light “does not care”
> how an observer is moving.  That is, its speed is *finite* and *constant*.
> 
> It takes time before the light rays/pulses of the flashes from opposite
> directions reach the observers.
> 
> It takes *less* time if the observer moves towards the light,
> *more* time if the observer moves away from the light.

That is obvious and it is also where you are completely missing the point.
According to SR, the train observer is not moving relative to the flashes. They came from the train ends.
Therefore, being at the midpoint of the train, he SHOULD see the flashes simultaneously.

> Because in the first case the observer is catching up with the light,
> and in the second case the light has to catch up with him.

You have followed Paul Andersen into his own trap by assuming the flashes were at rest with the ground and its light 
moved at c relative to the embankment.

> So an observer moving relative to the places from where the light
> rays/pulses originated *cannot* observe both at the same time.

That is obvious to any sane person... BUT NOT TO ALBERT EINSTEIN AND HIS FOLLOWERS.

> While an observer at rest to those places must observe them at the same
> time.

yOU ARE MUMBLING TRIVIA... WE KNOW IT ALREADY.

Like Paul Andersen, you are assuming the ground is at rest in an absolute 'aether' which determines the speed of the 
light from the flashes..

> When events are observed at the same time, they are said to be simultaneous.
> But in this case, they are not observed at the same time by all observers.
> 
> That is the *relativity* of simultaneity.

It is not related to the RoS. It is merely a consequence of an observer moving relative to the light sources. If he 
corrects for light travel time he will agree with the rest observer ,, that the flashes were simultaneous.




-- 

    HGW

Back to sci.physics.relativity | Previous | Next — Previous in thread | Next in thread | Find similar | Unroll thread


Thread

Train gedanken - again. "Paul B. Andersen" <relativity@paulba.no> - 2017-09-19 14:56 +0200
  Train gedanken - again. "David (Kronos Prime) Fuller" <fuller.david@hotmail.com> - 2017-09-19 06:00 -0700
  Re: Train gedanken - again. Kos Etrakis <uar@ksskkwi.ck> - 2017-09-19 14:48 +0000
    Re: Train gedanken - again. Kos Etrakis <uar@ksskkwi.ck> - 2017-09-19 14:53 +0000
      Re: Train gedanken - again. Julio Di Egidio <julio@diegidio.name> - 2017-09-19 08:05 -0700
        Re: Train gedanken - again. mlwozniak@wp.pl - 2017-09-19 09:09 -0700
          Re: Train gedanken - again. Julio Di Egidio <julio@diegidio.name> - 2017-09-19 09:35 -0700
            Re: Train gedanken - again. mlwozniak@wp.pl - 2017-09-19 10:45 -0700
        Re: Train gedanken - again. Kos Etrakis <uar@ksskkwi.ck> - 2017-09-19 22:01 +0000
          Re: Train gedanken - again. Julio Di Egidio <julio@diegidio.name> - 2017-09-20 07:30 -0700
            Re: Train gedanken - again. Kos Etrakis <uar@ksskkwi.ck> - 2017-09-20 20:00 +0000
  Re: Train gedanken - again. mlwozniak@wp.pl - 2017-09-19 07:55 -0700
    Re: Train gedanken - again. Kos Etrakis <uar@ksskkwi.ck> - 2017-09-19 14:58 +0000
  Re: Train gedanken - again. HGW <HW@home.net> - 2017-09-20 09:18 +1000
    Re: Train gedanken - again. Thomas 'PointedEars' Lahn <PointedEars@web.de> - 2017-09-20 04:48 +0200
      Re: Train gedanken - again. HGW <HW@home.net> - 2017-09-20 13:47 +1000
        Re: Train gedanken - again. Thomas 'PointedEars' Lahn <PointedEars@web.de> - 2017-09-20 14:33 +0200
          Re: Train gedanken - again. HGW <HW@home.net> - 2017-09-21 09:05 +1000
            Re: Train gedanken - again. "David (Kronos Prime) Fuller" <fuller.david@hotmail.com> - 2017-09-20 16:07 -0700
            Re: Train gedanken - again. Thomas 'PointedEars' Lahn <PointedEars@web.de> - 2017-09-22 01:24 +0200
              Re: Train gedanken - again. HGW <HW@home.net> - 2017-09-22 12:22 +1000
                Re: Train gedanken - again. Thomas 'PointedEars' Lahn <PointedEars@web.de> - 2017-09-27 15:28 +0200
                Re: Train gedanken - again. Thomas 'PointedEars' Lahn <PointedEars@web.de> - 2017-09-27 15:40 +0200
                Re: Train gedanken - again. HGW <HW@home.net> - 2017-09-29 09:20 +1000
                Re: Train gedanken - again. Thomas 'PointedEars' Lahn <PointedEars@web.de> - 2017-09-29 08:49 +0200
                Re: Train gedanken - again. Odd Bodkin <bodkinodd@gmail.com> - 2017-09-29 12:08 +0000
                Re: Train gedanken - again. mlwozniak@wp.pl - 2017-09-29 05:59 -0700
                Re: Train gedanken - again. HGW <HW@home.net> - 2017-09-28 09:22 +1000
                Re: Train gedanken - again. Thomas 'PointedEars' Lahn <PointedEars@web.de> - 2017-09-28 03:08 +0200
                Re: Train gedanken - again. gehan.ameresekere@gmail.com - 2017-09-27 20:30 -0700
        Re: Train gedanken - again. Odd Bodkin <bodkinodd@gmail.com> - 2017-09-20 20:42 +0000
          Re: Train gedanken - again. HGW <HW@home.net> - 2017-09-21 08:39 +1000
            Re: Train gedanken - again. Odd Bodkin <bodkinodd@gmail.com> - 2017-09-21 02:18 +0000
              Re: Train gedanken - again. HGW <HW@home.net> - 2017-09-22 08:25 +1000
                Re: Train gedanken - again. Thomas 'PointedEars' Lahn <PointedEars@web.de> - 2017-09-22 01:37 +0200
                Re: Train gedanken - again. HGW <HW@home.net> - 2017-09-22 12:34 +1000
                Re: Train gedanken - again. Thomas 'PointedEars' Lahn <PointedEars@web.de> - 2017-09-22 13:30 +0200
                Re: Train gedanken - again. HGW <HW@home.net> - 2017-09-23 06:44 +1000
                Re: Train gedanken - again. Thomas 'PointedEars' Lahn <PointedEars@web.de> - 2017-10-10 00:24 +0200
                Re: Train gedanken - again. Odd Bodkin <bodkinodd@gmail.com> - 2017-09-22 03:02 +0000
                Re: Train gedanken - again. HGW <HW@home.net> - 2017-09-23 06:50 +1000
                Re: Train gedanken - again. Odd Bodkin <bodkinodd@gmail.com> - 2017-09-22 22:23 +0000
                Re: Train gedanken - again. HGW <HW@home.net> - 2017-09-23 10:08 +1000
                Re: Train gedanken - again. gehan.ameresekere@gmail.com - 2017-09-23 04:09 -0700
                Re: Train gedanken - again. Poutnik <poutnik@privacy.net> - 2017-09-23 13:32 +0200
                Re: Train gedanken - again. HGW <HW@home.net> - 2017-09-24 09:02 +1000
                Re: Train gedanken - again. kenseto <setoken@att.net> - 2017-09-24 06:31 -0700
                Re: Train gedanken - again. "Dono," <sa_ge@comcast.net> - 2017-09-23 19:37 -0700
                Re: Train gedanken - again. gehan.ameresekere@gmail.com - 2017-09-24 07:26 -0700
                Re: Train gedanken - again. Poutnik <poutnik@privacy.net> - 2017-09-24 16:44 +0200
                Re: Train gedanken - again. gehan.ameresekere@gmail.com - 2017-09-24 08:03 -0700
                Re: Train gedanken - again. Poutnik <poutnik@privacy.net> - 2017-09-24 17:35 +0200
                Re: Train gedanken - again. HGW <HW@home.net> - 2017-09-25 08:26 +1000
                Re: Train gedanken - again. gehan.ameresekere@gmail.com - 2017-09-24 17:36 -0700
                Re: Train gedanken - again. "Dono," <sa_ge@comcast.net> - 2017-09-24 18:24 -0700
                Re: Train gedanken - again. Poutnik <poutnik@privacy.net> - 2017-09-25 07:34 +0200
                Re: Train gedanken - again. HGW <HW@home.net> - 2017-09-25 15:49 +1000
                Re: Train gedanken - again. Poutnik <poutnik@privacy.net> - 2017-09-25 07:56 +0200
                Re: Train gedanken - again. gehan.ameresekere@gmail.com - 2017-09-25 00:00 -0700
                Re: Train gedanken - again. Poutnik <poutnik@privacy.net> - 2017-09-25 13:47 +0200
                Re: Train gedanken - again. mlwozniak@wp.pl - 2017-09-25 00:47 -0700
                Re: Train gedanken - again. gehan.ameresekere@gmail.com - 2017-09-24 23:53 -0700
                Re: Train gedanken - again. HGW <HW@home.net> - 2017-09-25 19:53 +1000
                Re: Train gedanken - again. gehan.ameresekere@gmail.com - 2017-09-25 02:58 -0700
                Re: Train gedanken - again. Poutnik <poutnik@privacy.net> - 2017-09-25 13:54 +0200
                Re: Train gedanken - again. "HGW, DSc." <HG@....> - 2017-09-26 03:15 +1000
                Re: Train gedanken - again. "David (Kronos Prime) Fuller" <fuller.david@hotmail.com> - 2017-09-25 10:19 -0700
                Re: Train gedanken - again. Poutnik <poutnik@privacy.net> - 2017-09-25 13:56 +0200
                Re: Train gedanken - again. "HGW, DSc." <HG@....> - 2017-09-26 03:11 +1000
                Re: Train gedanken - again. kenseto <setoken@att.net> - 2017-09-25 14:43 -0700
                Re: Train gedanken - again. gehan.ameresekere@gmail.com - 2017-09-26 01:26 -0700
                Re: Train gedanken - again. gehan.ameresekere@gmail.com - 2017-09-26 02:06 -0700
                Re: Train gedanken - again. HGW <HW@home.net> - 2017-09-27 08:39 +1000
                Re: Train gedanken - again. Poutnik <poutnik@privacy.net> - 2017-09-25 13:52 +0200
                Re: Train gedanken - again. "HGW, DSc." <HG@....> - 2017-09-26 03:18 +1000
                Re: Train gedanken - again. "David (Kronos Prime) Fuller" <fuller.david@hotmail.com> - 2017-09-25 10:21 -0700
                Re: Train gedanken - again. Poutnik <poutnik@privacy.net> - 2017-09-25 13:19 +0200
                Re: Train gedanken - again. HGW <HW@home.net> - 2017-09-25 15:48 +1000
                Re: Train gedanken - again. gehan.ameresekere@gmail.com - 2017-09-24 08:31 -0700
                Re: Train gedanken - again. Poutnik <poutnik@privacy.net> - 2017-09-24 17:46 +0200
                Re: Train gedanken - again. mlwozniak@wp.pl - 2017-09-24 09:30 -0700
                Re: Train gedanken - again. Paparios <mrios@ing.puc.cl> - 2017-09-24 08:04 -0700
                Re: Train gedanken - again. "Dono," <sa_ge@comcast.net> - 2017-09-24 08:24 -0700
                Re: Train gedanken - again. Odd Bodkin <bodkinodd@gmail.com> - 2017-09-23 14:11 +0000
                Re: Train gedanken - again. HGW <HW@home.net> - 2017-09-24 08:53 +1000
                Re: Train gedanken - again. Odd Bodkin <bodkinodd@gmail.com> - 2017-09-24 02:31 +0000
                Re: Train gedanken - again. HGW <HW@home.net> - 2017-09-24 16:39 +1000
                Re: Train gedanken - again. Odd Bodkin <bodkinodd@gmail.com> - 2017-09-24 12:34 +0000
                Re: Train gedanken - again. HGW <HW@home.net> - 2017-09-25 08:30 +1000
                Re: Train gedanken - again. Odd Bodkin <bodkinodd@gmail.com> - 2017-09-24 22:32 +0000
                Re: Train gedanken - again. HGW <HW@home.net> - 2017-09-25 09:41 +1000
                Re: Train gedanken - again. Odd Bodkin <bodkinodd@gmail.com> - 2017-09-25 02:51 +0000
                Re: Train gedanken - again. HGW <HW@home.net> - 2017-09-25 15:51 +1000
                Re: Train gedanken - again. Odd Bodkin <bodkinodd@gmail.com> - 2017-09-25 12:48 +0000
    Re: Train gedanken - again. "Paul B. Andersen" <relativity@paulba.no> - 2017-09-20 11:13 +0200
      Re: Train gedanken - again. mlwozniak@wp.pl - 2017-09-20 02:31 -0700
        Re: Train gedanken - again. gehan.ameresekere@gmail.com - 2017-09-20 02:34 -0700
          Re: Train gedanken - again. mlwozniak@wp.pl - 2017-09-20 03:25 -0700
  Re: Train gedanken - again. gehan.ameresekere@gmail.com - 2017-09-19 22:40 -0700
    Re: Train gedanken - again. Poutnik <poutnik@privacy.net> - 2017-09-20 08:08 +0200
      Re: Train gedanken - again. HGW <HW@home.net> - 2017-09-21 08:46 +1000
    Re: Train gedanken - again. Poutnik <poutnik@privacy.net> - 2017-09-20 08:33 +0200
      Re: Train gedanken - again. mlwozniak@wp.pl - 2017-09-20 00:04 -0700
      Re: Train gedanken - again. gehan.ameresekere@gmail.com - 2017-09-20 00:34 -0700
        Re: Train gedanken - again. gehan.ameresekere@gmail.com - 2017-09-20 00:42 -0700
          Re: Train gedanken - again. Poutnik <poutnik@privacy.net> - 2017-09-20 10:54 +0200
            Re: Train gedanken - again. HGW <HW@home.net> - 2017-09-21 08:49 +1000
              Re: Train gedanken - again. "David (Kronos Prime) Fuller" <fuller.david@hotmail.com> - 2017-09-20 15:59 -0700
              Re: Train gedanken - again. Thomas 'PointedEars' Lahn <PointedEars@web.de> - 2017-09-22 01:54 +0200
                Re: Train gedanken - again. HGW <HW@home.net> - 2017-09-22 12:43 +1000
                Re: Train gedanken - again. Thomas 'PointedEars' Lahn <PointedEars@web.de> - 2017-09-22 12:56 +0200
                Re: Train gedanken - again. "David (Kronos Prime) Fuller" <fuller.david@hotmail.com> - 2017-09-22 11:04 -0700
                Re: Train gedanken - again. HGW <HW@home.net> - 2017-09-23 07:36 +1000
                Re: Train gedanken - again. Thomas 'PointedEars' Lahn <PointedEars@web.de> - 2017-09-27 01:38 +0200
                Re: Train gedanken - again. HGW <HW@home.net> - 2017-09-27 20:00 +1000
                Re: Train gedanken - again. Thomas 'PointedEars' Lahn <PointedEars@web.de> - 2017-09-27 12:06 +0200
                Re: Train gedanken - again. HGW <HW@home.net> - 2017-09-28 09:30 +1000
                Re: Train gedanken - again. Thomas 'PointedEars' Lahn <PointedEars@web.de> - 2017-09-28 03:04 +0200
                Re: Train gedanken - again. gehan.ameresekere@gmail.com - 2017-09-21 20:36 -0700
                Re: Train gedanken - again. Poutnik <poutnik@privacy.net> - 2017-09-22 07:21 +0200
                Re: Train gedanken - again. Thomas 'PointedEars' Lahn <PointedEars@web.de> - 2017-09-26 21:57 +0200
                Re: Train gedanken - again. gehan.ameresekere@gmail.com - 2017-09-26 20:57 -0700
                Re: Train gedanken - again. "Dono," <sa_ge@comcast.net> - 2017-09-26 21:00 -0700
                Re: Train gedanken - again. Thomas 'PointedEars' Lahn <PointedEars@web.de> - 2017-09-27 15:24 +0200
                Re: Train gedanken - again. gehan.ameresekere@gmail.com - 2017-09-27 17:39 -0700
                Re: Train gedanken - again. Thomas 'PointedEars' Lahn <PointedEars@web.de> - 2017-09-28 02:52 +0200
        Re: Train gedanken - again. Poutnik <poutnik@privacy.net> - 2017-09-20 10:48 +0200
    Re: Train gedanken - again. "Paul B. Andersen" <relativity@paulba.no> - 2017-09-20 15:13 +0200
  Re: Train gedanken - again. "Paul B. Andersen" <relativity@paulba.no> - 2017-09-20 20:19 +0200
    Re: Train gedanken - again. Kos Etrakis <uar@ksskkwi.ck> - 2017-09-20 20:02 +0000
    Re: Train gedanken - again. HGW <HW@home.net> - 2017-09-21 09:10 +1000
      Re: Train gedanken - again. "Paul B. Andersen" <relativity@paulba.no> - 2017-09-21 12:46 +0200
  Re: Train gedanken - again. kenseto <setoken@att.net> - 2017-09-20 13:14 -0700
    Re: Train gedanken - again. mitchrae3323@gmail.com - 2017-09-20 13:27 -0700
    Re: Train gedanken - again. HGW <HW@home.net> - 2017-09-21 09:29 +1000
    Re: Train gedanken - again. "Paul B. Andersen" <relativity@paulba.no> - 2017-09-21 14:03 +0200
      Re: Train gedanken - again. mlwozniak@wp.pl - 2017-09-21 05:19 -0700
      Re: Train gedanken - again. Kos Etrakis <uar@ksskkwi.ck> - 2017-09-21 12:42 +0000
      Re: Train gedanken - again. kenseto <setoken@att.net> - 2017-09-21 07:24 -0700
        Re: Train gedanken - again. "Paul B. Andersen" <relativity@paulba.no> - 2017-09-21 22:16 +0200
          Re: Train gedanken - again. HGW <HW@home.net> - 2017-09-22 08:51 +1000
            Re: Train gedanken - again. Odd Bodkin <bodkinodd@gmail.com> - 2017-09-22 03:02 +0000
              Re: Train gedanken - again. "David (Kronos Prime) Fuller" <fuller.david@hotmail.com> - 2017-09-21 20:18 -0700
          Re: Train gedanken - again. gehan.ameresekere@gmail.com - 2017-09-21 20:39 -0700
            Re: Train gedanken - again. "David (Kronos Prime) Fuller" <fuller.david@hotmail.com> - 2017-09-21 20:42 -0700
            Re: Train gedanken - again. Poutnik <poutnik@privacy.net> - 2017-09-22 07:49 +0200
              Re: Train gedanken - again. gehan.ameresekere@gmail.com - 2017-09-21 23:51 -0700
                Re: Train gedanken - again. Poutnik <poutnik@privacy.net> - 2017-09-22 09:04 +0200
                Re: Train gedanken - again. Poutnik <poutnik@privacy.net> - 2017-09-22 09:08 +0200
                Re: Train gedanken - again. gehan.ameresekere@gmail.com - 2017-09-22 00:27 -0700
                Re: Train gedanken - again. Poutnik <poutnik@privacy.net> - 2017-09-22 11:52 +0200
                Re: Train gedanken - again. mlwozniak@wp.pl - 2017-09-22 04:05 -0700
                Re: Train gedanken - again. HGW <HW@home.net> - 2017-09-23 07:46 +1000
                Re: Train gedanken - again. Thomas 'PointedEars' Lahn <PointedEars@web.de> - 2017-09-27 12:26 +0200
                Re: Train gedanken - again. HGW <HW@home.net> - 2017-09-28 09:31 +1000
                Re: Train gedanken - again. Thomas 'PointedEars' Lahn <PointedEars@web.de> - 2017-09-28 03:01 +0200
                Re: Train gedanken - again. gehan.ameresekere@gmail.com - 2017-09-27 20:22 -0700
                Re: Train gedanken - again. Thomas 'PointedEars' Lahn <PointedEars@web.de> - 2017-09-28 12:00 +0200
            Re: Train gedanken - again. "Paul B. Andersen" <relativity@paulba.no> - 2017-09-22 14:08 +0200
              Re: Train gedanken - again. HGW <HW@home.net> - 2017-09-23 07:41 +1000
                Re: Train gedanken - again. Thomas 'PointedEars' Lahn <PointedEars@web.de> - 2017-09-27 12:28 +0200
                Re: Train gedanken - again. HGW <HW@home.net> - 2017-09-28 09:32 +1000
                Re: Train gedanken - again. Thomas 'PointedEars' Lahn <PointedEars@web.de> - 2017-09-28 03:02 +0200
          Re: Train gedanken - again. kenseto <setoken@att.net> - 2017-09-22 07:03 -0700
            Re: Train gedanken - again. "Paul B. Andersen" <relativity@paulba.no> - 2017-09-22 19:55 +0200
              Re: Train gedanken - again. HGW <HW@home.net> - 2017-09-23 07:42 +1000
              Re: Train gedanken - again. kenseto <setoken@att.net> - 2017-09-23 06:55 -0700
                Re: Train gedanken - again. "Paul B. Andersen" <relativity@paulba.no> - 2017-09-24 11:17 +0200
      Re: Train gedanken - again. HGW <HW@home.net> - 2017-09-22 08:30 +1000
        Re: Train gedanken - again. "Paul B. Andersen" <relativity@paulba.no> - 2017-09-22 13:52 +0200
          Re: Train gedanken - again. mlwozniak@wp.pl - 2017-09-22 05:34 -0700
          Re: Train gedanken - again. HGW <HW@home.net> - 2017-09-23 08:05 +1000
            Re: Train gedanken - again. "Paul B. Andersen" <relativity@paulba.no> - 2017-09-23 15:38 +0200
              Re: Train gedanken - again. HGW <HW@home.net> - 2017-09-24 09:12 +1000
                Re: Train gedanken - again. "David (Kronos Prime) Fuller" <fuller.david@hotmail.com> - 2017-09-23 16:17 -0700
                Re: Train gedanken - again. "Paul B. Andersen" <relativity@paulba.no> - 2017-09-24 11:03 +0200
                Re: Train gedanken - again. kenseto <setoken@att.net> - 2017-09-24 07:11 -0700
                Re: Train gedanken - again. gehan.ameresekere@gmail.com - 2017-09-24 07:38 -0700
                Re: Train gedanken - again. HGW <HW@home.net> - 2017-09-25 08:43 +1000
                Re: Train gedanken - again. "Paul B. Andersen" <relativity@paulba.no> - 2017-09-25 14:38 +0200
                Re: Train gedanken - again. kenseto <setoken@att.net> - 2017-09-25 07:15 -0700
                Re: Train gedanken - again. kenseto <setoken@att.net> - 2017-09-25 07:38 -0700
                Re: Train gedanken - again. "HGW, DSc." <HG@....> - 2017-09-26 04:20 +1000
                Re: Train gedanken - again. gehan.ameresekere@gmail.com - 2017-09-26 01:23 -0700
              Re: Train gedanken - again. kenseto <setoken@att.net> - 2017-09-24 06:48 -0700

csiph-web