Re: Does "c" loose some velocity after leaving a dense medium back into space?

From: Bill Hobba (bhobba_at_rubbish.net.au)
Date: 03/23/05 

Date: Wed, 23 Mar 2005 23:15:13 GMT

"John C. Polasek" <jpolasek@cfl.rr.com> wrote in message
news:n27341t2jrj1aq4q5tn40i6qpi9bu5b53p@4ax.com...
> On Wed, 23 Mar 2005 04:41:09 GMT, "Bill Hobba" <bhobba@rubbish.net.au>
> wrote:
>
> >
> >"John C. Polasek" <jpolasek@cfl.rr.com> wrote in message
> >news:jln141pf2475me3887rm07e26j5o6d9qr6@4ax.com...
> >> On Tue, 22 Mar 2005 22:28:38 GMT, "Bill Hobba" <bhobba@rubbish.net.au>
> >> wrote:
> >>
> CHOP
> >> >
>
> >> You dodged. I asked you for one example where QED was so fantastically
> >> accurate.
> >
> >If that is what you meant then express yourself more clearly. See any
> >article on QED eg the following from the Encyclopedia Britannica
> >http://www.britannica.com/nobel/micro/489_26.html
> >
> >'Some of the most precise tests of QED have been experiments dealing with
> >the properties of muons. The magnetic moment of this type of subatomic
> >particle, for example, has been shown to agree with the theory to six
> >significant digits. Agreement of such high accuracy makes QED one of the
> >most successful physical theories so far devised.'
> Yup that's what the tutorial says. No example given.
> >
> >> You think QED has the vacuum all worked out. What's in it? Feynman
> >> diagrams?
> >>
> >
> >Something you obviously do not understand - a broiling see of virtual
> >particles - but it is doubtful you even understand what a virtual
particle
> >is. Hint it is an off mass shell contribution from the propagator - see
> >page 19 of Zee - Quantum Field Theory in a Nutshell.
>
> "broiling sea of virtual particles"?
> I don't know what a virtual particle is?

Sure do - it is the off mass shell terms from the propagator - see
http://encyclopedia.laborlawtalk.com/propagator. See the formula for the
position space propagator - notice the p^2 - m^2 + ie in the demominator?
That means most of the contribution to that integral will come from values
of p close to m and are called on mass shell; other values are called off
mass shell. For values of p different from m it is linguistic jargon to
call them virtual particles. But they are no less real than values close to
m - they simply make less contribution to the propagator. All this is
discussed on page 25 Zee - QFT in a Nutshell. John have you ever actually
read a book on the theory you are so critical of? You seem to not
understand even the most elementary basics. There is a reason the
references I am giving are from the early pages of Zees book - they are
fundamental.

> It's in my permittivity
> paper. The pairs confined in cells Lam = 3.5x10^-14m are virtual and
> not yet created. Their exact density accounts for the exact value of
> permittivity. They polarize up to 10^20V/m, after which, cosmic rays
> for example, they emerge as temporary pairs ala Anderson 1932.

First I have shown repeatedly your historical account of positrons is a
total fabrication. Second discourse in an area is greatly enhanced if one
uses the standard language of that area. Let us stick with the usual
definitions and not your concocted ones. Call it whatever you like but
stitch with current defections for words already in use.

>
> Creation consists of removing electrons only, at cost of 1/2 mc2 and
> are accelerated to the speed of light for another 1/2 mc2.
>

A massive particle can not be accelerated to the speed of light.

Rest of incomprehensible rubbish mercifully snipped.

Bill

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