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Re: Ectoplasm

From moroney@world.std.spaamtrap.com (Michael Moroney)
Newsgroups sci.physics.relativity
Subject Re: Ectoplasm
Date 2018-09-11 12:01 +0000
Organization The World : www.TheWorld.com : Since 1989
Message-ID <pn8arl$5vh$1@pcls7.std.com> (permalink)
References (4 earlier) <_vtlD.200456$8w.198688@fx40.am4> <pn688s$18o$2@pcls7.std.com> <g2ylD.315074$Fr5.258587@fx41.am4> <pn6cd0$3to$2@pcls7.std.com> <oCJlD.214299$2v.13782@fx19.am4>

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Keith Stein <keithstein111@gmail.com> writes:

>On 10/09/2018 19:16, Michael Moroney wrote:
>> Keith Stein <keithstein111@gmail.com> writes:
>> 
>> 
>>> No one ever measured E_0 or mu_0, Michael, for the very simple reason
>>> that THERE ISN'T ANY VACUUM.
>> 
>> There is as far as a short wavelength photon such as an X-ray in
>> intergalactic space is concerned.  Wavelength much much shorter than
>> interatomic distance.  It travels through a perfect vacuum between
>> encountering an atom once in a great while.
>> 
>> (vacuum...vacuum...vacuum...vacuum...vacuum...ATOM!...vacuum...vacuum...vacuum...vacuum...vacuum...)

>What you need to understand Michael is that Maxwell's e-m
>theory is a MACROSCOPIC THEORY, in which the medium is
>treated as continuous.

I mentioned that a few replies ago, and you have it backwards. Maxwell's
Equations have two forms, an exact form where you account for every single
charge and current, and a less exact macroscopic form which is simpler to
use. The macroscopic form simplifies things by treating regions as being
homogeneous, with a mu and epsilon that differ from the vacuum constants.
For example you can treat a section of glass with a dielectric constant
e_r greater than 1 as homogeneous rather than accounting for every single
atom of silicon, oxygen etc.

This wouldn't work for my intergalactic X-ray photon which sees:
(vacuum...vacuum...vacuum...vacuum...vacuum...ATOM!...vacuum...vacuum...vacuum...vacuum...vacuum...)
since as far as it is concerned, space isn't homogeneous.

>Feel free to have any atomic theory you like Michael,
>BUT if that theory disagrees with Maxwell's theory AT THE
>MACROSCOPIC LEVEL,

Or use the more exact but more demanding microscopic solution.

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Ectoplasm xip1415926@gmail.com - 2018-09-08 09:37 -0700
  Re: Ectoplasm Keith Stein <keithstein111@gmail.com> - 2018-09-10 09:51 +0100
    Re: Ectoplasm Keith Stein <keithstein111@gmail.com> - 2018-09-10 10:12 +0100
      Re: Ectoplasm moroney@world.std.spaamtrap.com (Michael Moroney) - 2018-09-10 12:07 +0000
        Re: Ectoplasm Keith Stein <keithstein111@gmail.com> - 2018-09-10 13:32 +0100
          Re: Ectoplasm moroney@world.std.spaamtrap.com (Michael Moroney) - 2018-09-10 17:05 +0000
            Re: Ectoplasm Keith Stein <keithstein111@gmail.com> - 2018-09-10 18:42 +0100
              Re: Ectoplasm Odd Bodkin <bodkinodd@gmail.com> - 2018-09-10 17:53 +0000
                Re: Ectoplasm Keith Stein <keithstein111@gmail.com> - 2018-09-10 19:16 +0100
                Re: Ectoplasm moroney@world.std.spaamtrap.com (Michael Moroney) - 2018-09-10 18:27 +0000
                Re: Ectoplasm "Ross A. Finlayson" <ross.finlayson@gmail.com> - 2018-09-10 12:23 -0700
                Re: Ectoplasm Odd Bodkin <bodkinodd@gmail.com> - 2018-09-10 19:27 +0000
                Re: Ectoplasm Keith Stein <keithstein111@gmail.com> - 2018-09-11 08:16 +0100
                Re: Ectoplasm Odd Bodkin <bodkinodd@gmail.com> - 2018-09-11 11:52 +0000
                Re: Ectoplasm Keith Stein <keithstein111@gmail.com> - 2018-09-11 14:54 +0100
                Re: Ectoplasm (Whoops! Typos eh!) Keith Stein <keithstein111@gmail.com> - 2018-09-11 16:00 +0100
                Re: Ectoplasm (Whoops! Typos eh!) xip1415926@gmail.com - 2018-09-11 08:27 -0700
                Re: Ectoplasm ( and Epistemology and Einstein's Nefarious Practices.) Keith Stein <keithstein111@gmail.com> - 2018-09-11 16:57 +0100
                Re: Ectoplasm Tom Roberts <tjroberts137@sbcglobal.net> - 2018-09-16 08:56 -0500
                Re: Ectoplasm xip1415926@gmail.com - 2018-09-16 12:48 -0700
                Re: Ectoplasm xip1415926@gmail.com - 2018-09-16 13:01 -0700
                Re: Ectoplasm Keith Stein <keithstein111@gmail.com> - 2018-09-17 18:38 +0100
                Re: Ectoplasm moroney@world.std.spaamtrap.com (Michael Moroney) - 2018-09-17 18:04 +0000
                Re: Ectoplasm Tom Roberts <tjroberts137@sbcglobal.net> - 2018-09-17 14:00 -0500
                Re: Ectoplasm "Ross A. Finlayson" <ross.finlayson@gmail.com> - 2018-09-17 20:59 -0700
                Re: Ectoplasm "Ross A. Finlayson" <ross.finlayson@gmail.com> - 2018-09-17 21:16 -0700
                Re: Ectoplasm "Ross A. Finlayson" <ross.finlayson@gmail.com> - 2018-09-23 20:07 -0700
              Re: Ectoplasm moroney@world.std.spaamtrap.com (Michael Moroney) - 2018-09-10 18:16 +0000
                Re: Ectoplasm Keith Stein <keithstein111@gmail.com> - 2018-09-11 07:52 +0100
                Re: Ectoplasm moroney@world.std.spaamtrap.com (Michael Moroney) - 2018-09-11 12:01 +0000
            Re: Ectoplasm Thomas Heger <ttt_heg@web.de> - 2018-09-14 21:16 +0200
              Re: Ectoplasm Thomas Heger <ttt_heg@web.de> - 2018-09-16 20:23 +0200
      Re: Ectoplasm xip1415926@gmail.com - 2018-09-10 07:03 -0700
      Re: Ectoplasm Tom Roberts <tjroberts137@sbcglobal.net> - 2018-09-10 09:39 -0500
        Re: Ectoplasm Keith Stein <keithstein111@gmail.com> - 2018-09-10 16:18 +0100
        Re: Ectoplasm Wilbur Foley <boue@eywffl.uf> - 2018-09-10 17:07 +0000
  Re: Ectoplasm (or History and Foundations of the LT) Keith Stein <keithstein111@gmail.com> - 2018-09-13 16:24 +0100
    Re: Ectoplasm (or History and Foundations of the LT) xip1415926@gmail.com - 2018-09-14 03:45 -0700

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