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

Groups > sci.physics.relativity > #587380

Re: Standard clocks

Show all headers | View raw

Tom Roberts wrote:
> 
> On 6/21/22 8:51 AM, Ken Seto wrote:
> > On Wednesday, June 15, 2022 at 11:46:58 AM UTC-4, tjrob137 wrote:
> >> Cs-133 clocks are used because at present the second is defined in
> >> term of the hyperfine transition of the Cs-133 ground state.
> >
> > There is no mechanical or atomic clock can claim to be standard.
> 
> Nonsense! At present, Cs-133 clocks _ARE_ standard -- they define what
> "1 second" means. And they do so wherever they are located.
> 
> > Because  a clock second on such a clock will represents a different
> > amount of absolute time in different frames.
> 
> So you claim but have failed to demonstrate. You are re-defining
> standard words to have your decidedly NON-standard meanings. THAT'S
> HOPELESS.
> 
> > The GPS uses absolute time [...]
> 
> No, it doesn't. It uses standard clocks at rest on earth's geoid to
> define the time coordinate of its ECI coordinates. There is nothing
> "absolute" about this, it is specific to the earth, and is valid only
> out to GPS satellite altitude (or so).
> 
> Tom Roberts

But the standard clocks that Albert Einstein used were called Cukoo
Clocks. That's a fact, right?



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

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

Thread

Standard clocks Maciej Wozniak <maluwozniak@gmail.com> - 2022-06-14 22:53 -0700
  Re: Standard clocks Tom Roberts <tjroberts137@sbcglobal.net> - 2022-06-15 10:46 -0500
    Re: Standard clocks Maciej Wozniak <maluwozniak@gmail.com> - 2022-06-15 09:32 -0700
      Re: Standard clocks "mitchr...@gmail.com" <mitchrae3323@gmail.com> - 2022-06-16 10:57 -0700
        Re: Standard clocks Maciej Wozniak <maluwozniak@gmail.com> - 2022-06-16 12:15 -0700
          Re: Standard clocks nospam@de-ster.demon.nl (J. J. Lodder) - 2022-06-16 22:58 +0200
            Re: Standard clocks "mitchr...@gmail.com" <mitchrae3323@gmail.com> - 2022-06-16 17:33 -0700
              Re: Standard clocks rotchm <rotchm@gmail.com> - 2022-06-16 18:08 -0700
                Re: Standard clocks "mitchr...@gmail.com" <mitchrae3323@gmail.com> - 2022-06-16 18:13 -0700
      Re: Standard clocks Tom Roberts <tjroberts137@sbcglobal.net> - 2022-06-16 16:11 -0500
        Re: Standard clocks Maciej Wozniak <maluwozniak@gmail.com> - 2022-06-16 22:22 -0700
          Re: Standard clocks nospam@de-ster.demon.nl (J. J. Lodder) - 2022-06-17 10:36 +0200
            Re: Standard clocks Maciej Wozniak <maluwozniak@gmail.com> - 2022-06-17 02:52 -0700
    Re: Standard clocks Ken Seto <setoken47@gmail.com> - 2022-06-21 06:51 -0700
      Re: Standard clocks Maciej Wozniak <maluwozniak@gmail.com> - 2022-06-21 07:02 -0700
      Re: Standard clocks Tom Roberts <tjroberts137@sbcglobal.net> - 2022-06-21 11:04 -0500
        Re: Standard clocks The Starmaker <starmaker@ix.netcom.com> - 2022-06-21 10:04 -0700
        Re: Standard clocks whodat <whodaat@void.nowgre.com> - 2022-06-21 13:25 -0500
          Re: Standard clocks Maciej Wozniak <maluwozniak@gmail.com> - 2022-06-21 11:38 -0700
        Re: Standard clocks Maciej Wozniak <maluwozniak@gmail.com> - 2022-06-21 11:28 -0700
          Re: Standard clocks Tom Roberts <tjroberts137@sbcglobal.net> - 2022-06-21 15:16 -0500
            Re: Standard clocks Maciej Wozniak <maluwozniak@gmail.com> - 2022-06-21 23:29 -0700
        Re: Standard clocks Ken Seto <setoken47@gmail.com> - 2022-06-22 04:41 -0700
      Re: Standard clocks nospam@de-ster.demon.nl (J. J. Lodder) - 2022-06-21 22:36 +0200
        Re: Standard clocks Maciej Wozniak <maluwozniak@gmail.com> - 2022-06-21 23:18 -0700
          Re: Standard clocks nospam@de-ster.demon.nl (J. J. Lodder) - 2022-06-24 11:36 +0200
            Re: Standard clocks Maciej Wozniak <maluwozniak@gmail.com> - 2022-06-24 05:05 -0700
              Re: Standard clocks nospam@de-ster.demon.nl (J. J. Lodder) - 2022-06-24 20:07 +0200
                Re: Standard clocks Maciej Wozniak <maluwozniak@gmail.com> - 2022-06-24 11:26 -0700
        Re: Standard clocks Ken Seto <setoken47@gmail.com> - 2022-06-25 05:11 -0700
          Re: Standard clocks Maciej Wozniak <maluwozniak@gmail.com> - 2022-06-25 06:04 -0700
            Re: Standard clocks Paparios <mrios@ing.puc.cl> - 2022-06-25 07:40 -0700
              Re: Standard clocks Maciej Wozniak <maluwozniak@gmail.com> - 2022-06-25 08:00 -0700
                Re: Standard clocks Volney <volney@invalid.invalid> - 2022-06-26 01:37 -0400
                Re: Standard clocks Maciej Wozniak <maluwozniak@gmail.com> - 2022-06-25 22:52 -0700
          Re: Standard clocks nospam@de-ster.demon.nl (J. J. Lodder) - 2022-06-25 20:09 +0200
            Re: Standard clocks Maciej Wozniak <maluwozniak@gmail.com> - 2022-06-25 11:54 -0700
              Re: Standard clocks nospam@de-ster.demon.nl (J. J. Lodder) - 2022-06-25 22:36 +0200
                Re: Standard clocks Volney <volney@invalid.invalid> - 2022-06-25 18:14 -0400
                Re: Standard clocks Maciej Wozniak <maluwozniak@gmail.com> - 2022-06-25 22:35 -0700
                Re: Standard clocks nospam@de-ster.demon.nl (J. J. Lodder) - 2022-06-26 11:22 +0200
                Re: Standard clocks Maciej Wozniak <maluwozniak@gmail.com> - 2022-06-26 03:10 -0700
                Re: Standard clocks nospam@de-ster.demon.nl (J. J. Lodder) - 2022-06-26 14:09 +0200
                Re: Standard clocks Maciej Wozniak <maluwozniak@gmail.com> - 2022-06-26 06:06 -0700
                Re: Standard clocks Maciej Wozniak <maluwozniak@gmail.com> - 2022-06-25 22:28 -0700
  Re: Standard clocks The Starmaker <starmaker@ix.netcom.com> - 2022-06-15 15:05 -0700
    Re: Standard clocks Maciej Wozniak <maluwozniak@gmail.com> - 2022-06-15 22:13 -0700

csiph-web