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


Groups > sci.physics.relativity > #362076

Re: Very basic question about velocities, speed of light, and reference frames

From Odd Bodkin <bodkinodd@gmail.com>
Newsgroups sci.physics.relativity
Subject Re: Very basic question about velocities, speed of light, and reference frames
Date 2015-08-28 07:55 -0500
Organization Aioe.org NNTP Server
Message-ID <mrplob$5tg$1@speranza.aioe.org> (permalink)
References <03bedc70-4ec0-42ec-baff-66c3450c5ad1@googlegroups.com> <7702e76a-b182-493a-83fa-71840a4ce063@googlegroups.com> <mrlavk$k9q$1@speranza.aioe.org> <ef9f88bb-5c56-4489-949f-ab7732ba4834@googlegroups.com>

Show all headers | View raw


On 8/27/2015 9:31 PM, Y wrote:
> On Thursday, August 27, 2015 at 7:27:23 AM UTC+10, Odd Bodkin wrote:
>> On 8/26/2015 4:15 PM, Y wrote:
>>> "How fast is the light beam approaching object OB as observed from Reference frame A?"
>>>
>>> An observer cannot observe a light beam approaching them. That would be like saying that
>>> something FTL is projecting from the light as it moves towards you.
>>>
>>> -y
>>
>> I think you are stuck in this rather silly notion that an observer is
>> one pair of eyes sitting in one place watching things happen around him.
>>
>
>
> That's nonsense. I thought of no such thing. The same applies. no lab can set the stop watch
> for light that is being emitted from distant stars. Your assertions are inane beyond belief.

You didn't read what I wrote. You should read what I wrote.
There I described how you measure the speed of light from a source using 
two detectors, and NEITHER detector is positioned at the emitter, and 
nor is it necessary for one of them to be at the emitter.

>
>> In science, an observer means a laboratory, or if you like, an
>> experimental setup.
>
> Great then maybe you can explain how an observer synchronizes t=0 with the emission of
> a photon from a distant star ?
>
> Cretin.

Nice words for someone who didn't even bother to read what I wrote.

>
> -y
>
>


-- 
Odd Bodkin --- maker of fine toys, tools, tables

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


Thread

Very basic question about velocities, speed of light, and reference frames Jon Price <jonelwoodprice@gmail.com> - 2015-08-13 08:47 -0700
  Re: Very basic question about velocities, speed of light, and reference frames Odd Bodkin <bodkinodd@gmail.com> - 2015-08-13 10:51 -0500
    Re: Very basic question about velocities, speed of light, and reference frames kenseto <setoken@att.net> - 2015-08-17 19:00 -0700
      Re: Very basic question about velocities, speed of light, and reference frames Odd Bodkin <bodkinodd@gmail.com> - 2015-08-24 09:35 -0500
        Re: Very basic question about velocities, speed of light, and reference frames Poutnik <Poutnik4NNTP@gmail.com> - 2015-08-24 16:39 +0200
      Re: Very basic question about velocities, speed of light, and reference frames pcardinale@volcanomail.com - 2015-08-26 13:10 -0700
  Re: Very basic question about velocities, speed of light, and reference frames Maciej Woźniak <mlwozniak@wp.pl> - 2015-08-13 17:52 +0200
    Re: Very basic question about velocities, speed of light, and reference frames Jon Price <jonelwoodprice@gmail.com> - 2015-08-13 09:23 -0700
  Re: Very basic question about velocities, speed of light, and reference frames John Heath <heathjohn2@gmail.com> - 2015-08-14 06:08 -0700
    Re: Very basic question about velocities, speed of light, and reference frames Jon Price <jonelwoodprice@gmail.com> - 2015-08-14 08:15 -0700
      Re: Very basic question about velocities, speed of light, and reference frames Maciej Woźniak <mlwozniak@wp.pl> - 2015-08-14 17:33 +0200
        Re: Very basic question about velocities, speed of light, and reference frames Jon Price <jonelwoodprice@gmail.com> - 2015-08-14 08:35 -0700
          Re: Very basic question about velocities, speed of light, and reference frames Maciej Woźniak <mlwozniak@wp.pl> - 2015-08-14 18:24 +0200
            Re: Very basic question about velocities, speed of light, and reference frames Tom Roberts <tjroberts137@sbcglobal.net> - 2015-08-14 12:48 -0500
              Re: Very basic question about velocities, speed of light, and reference frames Maciej Woźniak <mlwozniak@wp.pl> - 2015-08-14 20:28 +0200
                Re: Very basic question about velocities, speed of light, and reference frames JanPB <filmart@gmail.com> - 2015-08-14 11:54 -0700
                Re: Very basic question about velocities, speed of light, and reference frames Maciej Woźniak <mlwozniak@wp.pl> - 2015-08-14 21:22 +0200
                Re: Very basic question about velocities, speed of light, and reference frames alsor@interia.pl - 2015-08-14 12:26 -0700
                Re: Very basic question about velocities, speed of light, and reference frames JanPB <filmart@gmail.com> - 2015-08-14 13:10 -0700
                Re: Very basic question about velocities, speed of light, and reference frames Maciej Woźniak <mlwozniak@wp.pl> - 2015-08-14 22:22 +0200
                Re: Very basic question about velocities, speed of light, and reference frames JanPB <filmart@gmail.com> - 2015-08-14 14:17 -0700
                Re: Very basic question about velocities, speed of light, and reference frames Maciej Woźniak <mlwozniak@wp.pl> - 2015-08-15 07:46 +0200
                Re: Very basic question about velocities, speed of light, and reference frames JanPB <filmart@gmail.com> - 2015-08-15 01:23 -0700
                Re: Very basic question about velocities, speed of light, and reference frames Maciej Woźniak <mlwozniak@wp.pl> - 2015-08-15 11:37 +0200
                Re: Very basic question about velocities, speed of light, and reference frames alsor@interia.pl - 2015-08-15 14:46 -0700
                Re: Very basic question about velocities, speed of light, and reference frames JanPB <filmart@gmail.com> - 2015-08-16 18:58 -0700
                Re: Very basic question about velocities, speed of light, and reference frames alsor@interia.pl - 2015-08-17 10:52 -0700
                Re: Very basic question about velocities, speed of light, and reference frames JanPB <filmart@gmail.com> - 2015-08-26 14:28 -0700
      Re: Very basic question about velocities, speed of light, and reference frames Odd Bodkin <bodkinodd@gmail.com> - 2015-08-14 10:44 -0500
      Re: Very basic question about velocities, speed of light, and reference frames Tom Roberts <tjroberts137@sbcglobal.net> - 2015-08-14 12:44 -0500
        Re: Very basic question about velocities, speed of light, and reference frames alsor@interia.pl - 2015-08-14 12:14 -0700
        Re: Very basic question about velocities, speed of light, and reference frames John Gogo <jfgogo22@yahoo.com> - 2015-08-14 19:44 -0700
          Re: Very basic question about velocities, speed of light, and reference frames John Gogo <jfgogo22@yahoo.com> - 2015-08-14 19:46 -0700
      Re: Very basic question about velocities, speed of light, and reference frames Mikko <mikko.levanto@outlook.com> - 2015-08-16 14:59 +0300
        Re: Very basic question about velocities, speed of light, and reference frames Maciej Woźniak <mlwozniak@wp.pl> - 2015-08-16 14:02 +0200
        Re: Very basic question about velocities, speed of light, and reference frames Eteocles Panagakos <eteoclespd@prospernetwork.org> - 2015-08-16 12:37 +0000
          Re: Very basic question about velocities, speed of light, and reference frames Poutnik <poutnik4nntp@gmail.com> - 2015-08-16 15:44 +0200
            Re: Very basic question about velocities, speed of light, and reference frames Eteocles Panagakos <eteoclespd@prospernetwork.org> - 2015-08-16 13:53 +0000
              Re: Very basic question about velocities, speed of light, and reference frames Poutnik <poutnik4nntp@gmail.com> - 2015-08-16 16:16 +0200
      Re: Very basic question about velocities, speed of light, and reference frames John Heath <heathjohn2@gmail.com> - 2015-08-16 19:43 -0700
        Re: Very basic question about velocities, speed of light, and reference frames fuller.david@hotmail.com - 2015-08-26 12:08 -0700
          Re: Very basic question about velocities, speed of light, and reference frames fuller.david@hotmail.com - 2015-08-26 13:32 -0700
            Re: Very basic question about velocities, speed of light, and reference frames fuller.david@hotmail.com - 2015-08-26 13:39 -0700
    Re: Very basic question about velocities, speed of light, and reference frames Y <yanarchi@hotmail.com> - 2015-08-26 14:22 -0700
      Re: Very basic question about velocities, speed of light, and reference frames Odd Bodkin <bodkinodd@gmail.com> - 2015-08-26 16:29 -0500
  Re: Very basic question about velocities, speed of light, and reference frames Y <yanarchi@hotmail.com> - 2015-08-26 14:15 -0700
    Re: Very basic question about velocities, speed of light, and reference frames Odd Bodkin <bodkinodd@gmail.com> - 2015-08-26 16:27 -0500
      Re: Very basic question about velocities, speed of light, and reference frames Y <yanarchi@hotmail.com> - 2015-08-27 19:31 -0700
        Re: Very basic question about velocities, speed of light, and reference frames Odd Bodkin <bodkinodd@gmail.com> - 2015-08-28 07:55 -0500

csiph-web