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Groups > sci.physics.relativity > #614905

Re: A light clock that works.

From Sylvia Else <sylvia@email.invalid>
Newsgroups sci.physics.relativity
Subject Re: A light clock that works.
Date 2023-07-10 23:22 +1000
Message-ID <kh2evqF3oq5U1@mid.individual.net> (permalink)
References <e242a962-299e-472b-b1af-9cd2a682441cn@googlegroups.com> <kh2aruF323qU1@mid.individual.net> <e4d1263c-19d5-43be-a0c1-fb4220a38d05n@googlegroups.com>

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On 10-July-23 11:12 pm, Laurence Clark Crossen wrote:
> On Monday, July 10, 2023 at 5:11:45 AM UTC-7, Sylvia Else wrote:
>> On 10-July-23 3:56 am, Laurence Clark Crossen wrote:
>>> Design of a light clock that works on a spaceship traveling at near the speed of light:
>>> Orient a light clock horizontally like the beam in the MMX directed in the direction of Earth's orbital motion.
>>> The beam going out to the mirror is in the direction of the spaceship's motion.
>>> That beam covers a longer distance since that mirror is moving away
>>> On the return trip, it covers a shorter distance because the other side of the clock is moving towards it.
>>> Result: The clock functions at the same rate as when stationary.
>>> Further: This works whether light shares the velocity of the source or not.
>>> Question: Why did Einstein choose a clock that doesn't work when an available one does?
>> Care to expand on that using algebra, rather than hand-waving?
>>
>> Sylvia.
> I would have thought you knew elementary algebra.
> With light speed independent of the speed of the source:
> Distance= (d + x) + (d - x)= 2d.
> Velocity= c
> Time= 2d/c
> In case you didn't understand, refer to the completely sufficient verbal description given previously.

You said near the speed of light, presumably relative to some as yet to 
be identified observer, since it cannot be relative to the spaceship itself.

Sylvia.

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Thread

A light clock that works. Laurence Clark Crossen <l.c.crossen@hotmail.com> - 2023-07-09 10:56 -0700
  Re: A light clock that works. "mitchr...@gmail.com" <mitchrae3323@gmail.com> - 2023-07-09 11:11 -0700
    Re: A light clock that works. Laurence Clark Crossen <l.c.crossen@hotmail.com> - 2023-07-09 12:02 -0700
  Re: A light clock that works. Bill <davos2329@gmail.com> - 2023-07-09 11:21 -0700
    Re: A light clock that works. Laurence Clark Crossen <l.c.crossen@hotmail.com> - 2023-07-09 12:04 -0700
      Re: A light clock that works. Bill <davos2329@gmail.com> - 2023-07-09 12:29 -0700
        Re: A light clock that works. Laurence Clark Crossen <l.c.crossen@hotmail.com> - 2023-07-09 12:39 -0700
          Re: A light clock that works. Bill <davos2329@gmail.com> - 2023-07-09 13:53 -0700
            Re: A light clock that works. whodat <whodaat@void.nowgre.com> - 2023-07-09 16:13 -0500
  Re: A light clock that works. nospam@de-ster.demon.nl (J. J. Lodder) - 2023-07-09 22:54 +0200
    Re: A light clock that works. Laurence Clark Crossen <l.c.crossen@hotmail.com> - 2023-07-09 15:06 -0700
      Re: A light clock that works. Bill <davos2329@gmail.com> - 2023-07-09 16:25 -0700
      Re: A light clock that works. whodat <whodaat@void.nowgre.com> - 2023-07-09 21:08 -0500
        Re: A light clock that works. Laurence Clark Crossen <l.c.crossen@hotmail.com> - 2023-07-10 09:32 -0700
          Re: A light clock that works. Bill <davos2329@gmail.com> - 2023-07-10 11:49 -0700
          Re: A light clock that works. Bill <davos2329@gmail.com> - 2023-07-10 11:53 -0700
          Re: A light clock that works. whodat <whodaat@void.nowgre.com> - 2023-07-10 14:16 -0500
  Re: A light clock that works. Mikko <mikko.levanto@iki.fi> - 2023-07-10 11:13 +0300
    Re: A light clock that works. Maciej Wozniak <maluwozniak@gmail.com> - 2023-07-10 01:42 -0700
  Re: A light clock that works. Sylvia Else <sylvia@email.invalid> - 2023-07-10 22:11 +1000
    Re: A light clock that works. Laurence Clark Crossen <l.c.crossen@hotmail.com> - 2023-07-10 06:12 -0700
      Re: A light clock that works. Sylvia Else <sylvia@email.invalid> - 2023-07-10 23:22 +1000
        Re: A light clock that works. Laurence Clark Crossen <l.c.crossen@hotmail.com> - 2023-07-10 06:58 -0700
          Re: A light clock that works. Sylvia Else <sylvia@email.invalid> - 2023-07-11 00:09 +1000
            Re: A light clock that works. Laurence Clark Crossen <l.c.crossen@hotmail.com> - 2023-07-10 07:11 -0700
            Re: A light clock that works. Laurence Clark Crossen <l.c.crossen@hotmail.com> - 2023-07-10 07:22 -0700
              Re: A light clock that works. Richard Hachel <r.hachel@frite.fr> - 2023-07-10 14:32 +0000
                Re: A light clock that works. Athel Cornish-Bowden <athel.cb@gmail.com> - 2023-07-10 16:56 +0200
                Re: A light clock that works. Jhon-Jhairo Papadopulos <drao@ohuholsj.jo> - 2023-07-10 17:28 +0000
                Re: A light clock that works. Pablo Sfakianos <lsop@saikfiof.sn> - 2023-07-10 19:45 +0000
            Re: A light clock that works. Laurence Clark Crossen <l.c.crossen@hotmail.com> - 2023-07-10 08:19 -0700
              Re: A light clock that works. Sylvia Else <sylvia@email.invalid> - 2023-07-11 11:23 +1000
                Re: A light clock that works. whodat <whodaat@void.nowgre.com> - 2023-07-10 20:54 -0500
        Re: A light clock that works. Laurence Clark Crossen <l.c.crossen@hotmail.com> - 2023-07-10 07:10 -0700
  Re: A light clock that works. wugi <wugi@brol.invalid> - 2023-07-10 21:52 +0200
    Re: A light clock that works. Laurence Clark Crossen <l.c.crossen@hotmail.com> - 2023-07-11 10:56 -0700
      Re: A light clock that works. Richard Hachel <r.hachel@frite.fr> - 2023-07-11 18:17 +0000
      Re: A light clock that works. Tom Roberts <tjoberts137@sbcglobal.net> - 2023-07-11 13:22 -0500
        Re: A light clock that works. Maciej Wozniak <maluwozniak@gmail.com> - 2023-07-11 13:02 -0700

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