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Re: Physics Lesson for Dingleberrries: How to Measure a Moving Rod.

From Sylvia Else <sylvia@not.at.this.address>
Newsgroups sci.physics.relativity
Subject Re: Physics Lesson for Dingleberrries: How to Measure a Moving Rod.
Date 2017-02-24 12:37 +1100
Message-ID <eh9h37Fle4sU2@mid.individual.net> (permalink)
References (4 earlier) <o8l4ln$185o$1@gioia.aioe.org> <eh6sl7F54t6U1@mid.individual.net> <o8m6mn$k63$1@gioia.aioe.org> <eh7laiF9h83U1@mid.individual.net> <o8nkpp$1b41$1@gioia.aioe.org>

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On 24/02/2017 8:39 AM, HGW... DSc. wrote:
> On 23/02/17 19:37, Sylvia Else wrote:
>> On 23/02/2017 7:32 PM, HGW... DSc. wrote:
>
>>>>>
>>>>> Do you know what that means?
>>>>
>>>> I'm not sure that you do. SR does not imply any change to the rod. That
>>>> doesn't alter the fact that when the rod is projected onto a different
>>>> inertial frame, its projected length is not the same as its proper
>>>> length.
>>>
>>> Crap! A rod is a rod. It defines an absolute spatial interval. It does
>>> not get 'projected' anywhere.
>>
>> I can project a three dimensional object onto a two dimensional plane.
>> It doesn't do anything to the object. What's the objection to projecting
>> a rod in a four-dimensional space-time onto a different four-dimensional
>> space-time? Again, it doesn't do anything to the rod.
>
> Are you raving mad?. Time has nothing to do with the rod's absolute length.

It doesn't affect the proper length of the rod, that's true.

It does impact on the length measured in other frames.

Sylvia.

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Physics Lesson for Dingleberrries: How to Measure a Moving Rod. "HGW, DSc." <HG@....> - 2017-02-22 05:19 +1100
  Re: Physics Lesson for Dingleberrries: How to Measure a Moving Rod. alsor@interia.pl - 2017-02-22 12:58 -0800
    Re: Physics Lesson for Dingleberrries: How to Measure a Moving Rod. JanPB <filmart@gmail.com> - 2017-02-22 13:47 -0800
      Re: Physics Lesson for Dingleberrries: How to Measure a Moving Rod. alsor@interia.pl - 2017-02-22 17:33 -0800
        Re: Physics Lesson for Dingleberrries: How to Measure a Moving Rod. JanPB <filmart@gmail.com> - 2017-02-23 12:25 -0800
  Re: Physics Lesson for Dingleberrries: How to Measure a Moving Rod. JanPB <filmart@gmail.com> - 2017-02-22 13:46 -0800
    Re: Physics Lesson for Dingleberrries: How to Measure a Moving Rod. "HGW... DSc." <hgw@....> - 2017-02-23 08:53 +1100
      Re: Physics Lesson for Dingleberrries: How to Measure a Moving Rod. JanPB <filmart@gmail.com> - 2017-02-22 14:04 -0800
        Re: Physics Lesson for Dingleberrries: How to Measure a Moving Rod. "HGW... DSc." <hgw@....> - 2017-02-23 09:51 +1100
          Re: Physics Lesson for Dingleberrries: How to Measure a Moving Rod. Sylvia Else <sylvia@not.at.this.address> - 2017-02-23 12:36 +1100
            Re: Physics Lesson for Dingleberrries: How to Measure a Moving Rod. "HGW... DSc." <hgw@....> - 2017-02-23 19:32 +1100
              Re: Physics Lesson for Dingleberrries: How to Measure a Moving Rod. Sylvia Else <sylvia@not.at.this.address> - 2017-02-23 19:37 +1100
                Re: Physics Lesson for Dingleberrries: How to Measure a Moving Rod. mlwozniak@wp.pl - 2017-02-23 00:55 -0800
                Re: Physics Lesson for Dingleberrries: How to Measure a Moving Rod. "HGW... DSc." <hgw@....> - 2017-02-24 08:39 +1100
                Re: Physics Lesson for Dingleberrries: How to Measure a Moving Rod. Sylvia Else <sylvia@not.at.this.address> - 2017-02-24 12:37 +1100
                Re: Physics Lesson for Dingleberrries: How to Measure a Moving Rod. "HGW... DSc." <hgw@....> - 2017-02-25 09:16 +1100
                Re: Physics Lesson for Dingleberrries: How to Measure a Moving Rod. sdru.product@gmail.com - 2017-02-24 15:07 -0800
                Re: Physics Lesson for Dingleberrries: How to Measure a Moving Rod. "HGW... DSc." <hgw@....> - 2017-02-25 19:47 +1100
                Re: Physics Lesson for Dingleberrries: How to Measure a Moving Rod. sdru.product@gmail.com - 2017-02-25 02:18 -0800
                Re: Physics Lesson for Dingleberrries: How to Measure a Moving Rod. "HGW... DSc." <hgw@....> - 2017-02-26 05:58 +1100
                Re: Physics Lesson for Dingleberrries: How to Measure a Moving Rod. Odd Bodkin <bodkinodd@gmail.com> - 2017-02-25 13:32 -0600
                Re: Physics Lesson for Dingleberrries: How to Measure a Moving Rod. Bret Noss <osotr@rwtropsws.org> - 2017-02-25 19:43 +0000
                Re: Physics Lesson for Dingleberrries: How to Measure a Moving Rod. pnalsing@gmail.com - 2017-02-25 20:21 -0800
                Re: Physics Lesson for Dingleberrries: How to Measure a Moving Rod. "Paul B. Andersen" <relativity@paulba.no> - 2017-02-26 22:04 +0100
                Re: Physics Lesson for Dingleberrries: How to Measure a Moving Rod. "HGW... DSc." <hgw@....> - 2017-02-27 08:22 +1100
                Re: Physics Lesson for Dingleberrries: How to Measure a Moving Rod. Sylvia Else <sylvia@not.at.this.address> - 2017-02-25 21:23 +1100
                Re: Physics Lesson for Dingleberrries: How to Measure a Moving Rod. "HGW... DSc." <hgw@....> - 2017-02-26 05:52 +1100
                Re: Physics Lesson for Dingleberrries: How to Measure a Moving Rod. Sylvia Else <sylvia@not.at.this.address> - 2017-02-27 13:01 +1100
                Re: Physics Lesson for Dingleberrries: How to Measure a Moving Rod. "HGW... DSc." <hgw@....> - 2017-02-28 10:08 +1100
                Re: Physics Lesson for Dingleberrries: How to Measure a Moving Rod. Sylvia Else <sylvia@not.at.this.address> - 2017-02-28 13:40 +1100
                Re: Physics Lesson for Dingleberrries: How to Measure a Moving Rod. "HGW, DSc." <HG@....> - 2017-03-01 04:02 +1100
                Re: Physics Lesson for Dingleberrries: How to Measure a Moving Rod. sdru.product@gmail.com - 2017-02-24 15:33 -0800
                Re: Physics Lesson for Dingleberrries: How to Measure a Moving Rod. "HGW, DSc." <HG@....> - 2017-02-27 01:23 +1100
                Re: Physics Lesson for Dingleberrries: How to Measure a Moving Rod. Prokaryotic Caspase Homolog <prokaryotic.caspase.homolog@gmail.com> - 2017-02-26 09:04 -0800
                Re: Physics Lesson for Dingleberrries: How to Measure a Moving Rod. "HGW... DSc." <hgw@....> - 2017-02-27 08:30 +1100
                Re: Physics Lesson for Dingleberrries: How to Measure a Moving Rod. sdru.product@gmail.com - 2017-02-26 15:30 -0800
                Re: Physics Lesson for Dingleberrries: How to Measure a Moving Rod. Prokaryotic Caspase Homolog <prokaryotic.caspase.homolog@gmail.com> - 2017-02-27 03:45 -0800
                Re: Physics Lesson for Dingleberrries: How to Measure a Moving Rod. Odd Bodkin <bodkinodd@gmail.com> - 2017-02-27 07:20 -0600
                Re: Physics Lesson for Dingleberrries: How to Measure a Moving Rod. Odd Bodkin <bodkinodd@gmail.com> - 2017-02-27 07:20 -0600
                Re: Physics Lesson for Dingleberrries: How to Measure a Moving Rod. Poutnik <poutnik4nntp@gmail.com> - 2017-02-27 14:38 +0100
                Re: Physics Lesson for Dingleberrries: How to Measure a Moving Rod. Prokaryotic Caspase Homolog <prokaryotic.caspase.homolog@gmail.com> - 2017-02-27 07:47 -0800
                Re: Physics Lesson for Dingleberrries: How to Measure a Moving Rod. "HGW... DSc." <hgw@....> - 2017-02-28 10:16 +1100
                Re: Physics Lesson for Dingleberrries: How to Measure a Moving Rod. "David (Lord Kronos Prime) Fuller" <fuller.david@hotmail.com> - 2017-02-27 16:27 -0800
                Re: Physics Lesson for Dingleberrries: How to Measure a Moving Rod. sdru.product@gmail.com - 2017-02-27 11:41 -0800
                Re: Physics Lesson for Dingleberrries: How to Measure a Moving Rod. sdru.product@gmail.com - 2017-02-27 11:51 -0800
                Re: Physics Lesson for Dingleberrries: How to Measure a Moving Rod. sdru.product@gmail.com - 2017-02-27 11:25 -0800
                Re: Physics Lesson for Dingleberrries: How to Measure a Moving Rod. Odd Bodkin <bodkinodd@gmail.com> - 2017-02-27 13:32 -0600
                Re: Physics Lesson for Dingleberrries: How to Measure a Moving Rod. Odd Bodkin <bodkinodd@gmail.com> - 2017-02-26 15:28 -0600
                Re: Physics Lesson for Dingleberrries: How to Measure a Moving Rod. "HGW... DSc." <hgw@....> - 2017-02-28 10:12 +1100
                Re: Physics Lesson for Dingleberrries: How to Measure a Moving Rod. Odd Bodkin <bodkinodd@gmail.com> - 2017-02-27 18:44 -0600
                Re: Physics Lesson for Dingleberrries: How to Measure a Moving Rod. sdru.product@gmail.com - 2017-02-27 18:24 -0800
                Re: Physics Lesson for Dingleberrries: How to Measure a Moving Rod. sdru.product@gmail.com - 2017-02-27 18:26 -0800
                Re: Physics Lesson for Dingleberrries: How to Measure a Moving Rod. Gary Harnagel <hitlong@yahoo.com> - 2017-02-27 18:39 -0800
                Re: Physics Lesson for Dingleberrries: How to Measure a Moving Rod. "HGW, DSc." <HG@....> - 2017-03-01 04:11 +1100
                Re: Physics Lesson for Dingleberrries: How to Measure a Moving Rod. Odd Bodkin <bodkinodd@gmail.com> - 2017-02-28 11:57 -0600
                Re: Physics Lesson for Dingleberrries: How to Measure a Moving Rod. "HGW, DSc." <HG@....> - 2017-03-02 04:56 +1100
                Re: Physics Lesson for Dingleberrries: How to Measure a Moving Rod. Sylvia Else <sylvia@not.at.this.address> - 2017-02-27 13:04 +1100
                Re: Physics Lesson for Dingleberrries: How to Measure a Moving Rod. mlwozniak@wp.pl - 2017-02-26 23:23 -0800
                Re: Physics Lesson for Dingleberrries: How to Measure a Moving Rod. Sylvia Else <sylvia@not.at.this.address> - 2017-02-27 19:46 +1100
                Re: Physics Lesson for Dingleberrries: How to Measure a Moving Rod. mlwozniak@wp.pl - 2017-02-27 01:03 -0800
                Re: Physics Lesson for Dingleberrries: How to Measure a Moving Rod. Sylvia Else <sylvia@not.at.this.address> - 2017-02-28 13:41 +1100
                Re: Physics Lesson for Dingleberrries: How to Measure a Moving Rod. mlwozniak@wp.pl - 2017-02-27 23:16 -0800
                Re: Physics Lesson for Dingleberrries: How to Measure a Moving Rod. "HGW... DSc." <hgw@....> - 2017-02-28 10:18 +1100
                Re: Physics Lesson for Dingleberrries: How to Measure a Moving Rod. Sylvia Else <sylvia@not.at.this.address> - 2017-02-28 15:37 +1100
                Re: Physics Lesson for Dingleberrries: How to Measure a Moving Rod. "HGW, DSc." <HG@....> - 2017-03-01 04:15 +1100
              Re: Physics Lesson for Dingleberrries: How to Measure a Moving Rod. Odd Bodkin <bodkinodd@gmail.com> - 2017-02-24 08:05 -0600
                Re: Physics Lesson for Dingleberrries: How to Measure a Moving Rod. "HGW... DSc." <hgw@....> - 2017-02-25 09:18 +1100
          Re: Physics Lesson for Dingleberrries: How to Measure a Moving Rod. Odd Bodkin <bodkinodd@gmail.com> - 2017-02-25 13:36 -0600
            Re: Physics Lesson for Dingleberrries: How to Measure a Moving Rod. "HGW... DSc." <hgw@....> - 2017-02-26 07:09 +1100
        Re: Physics Lesson for Dingleberrries: How to Measure a Moving Rod. mlwozniak@wp.pl - 2017-02-22 15:00 -0800
      Re: Physics Lesson for Dingleberrries: How to Measure a Moving Rod. Odd Bodkin <bodkinodd@gmail.com> - 2017-02-24 10:12 -0600
        Re: Physics Lesson for Dingleberrries: How to Measure a Moving Rod. sdru.product@gmail.com - 2017-02-24 12:25 -0800
          Re: Physics Lesson for Dingleberrries: How to Measure a Moving Rod. "HGW... DSc." <hgw@....> - 2017-02-25 09:20 +1100
        Re: Physics Lesson for Dingleberrries: How to Measure a Moving Rod. "HGW... DSc." <hgw@....> - 2017-02-25 09:26 +1100
  Re: Physics Lesson for Dingleberrries: How to Measure a Moving Rod. rotchm <rotchm@gmail.com> - 2017-02-22 18:20 -0800
    Re: Physics Lesson for Dingleberrries: How to Measure a Moving Rod. "HGW... DSc." <hgw@....> - 2017-02-23 19:41 +1100

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