Re: Einstein's logic

From: Harry (harald.vanlintel_at_epfl.ch)
Date: 07/02/04 

Date: Fri, 2 Jul 2004 12:59:21 +0200

"Bill Hobba" <bhobba@rubbish.net.au> wrote in message
news:8y8Fc.74884$sj4.6928@news-server.bigpond.net.au...
>
> "John Kennaugh" <JKNG@kennaugh2435hex.freeserve.co.uk> wrote in message
> news:oU2eAyZiYD5AFwHz@kennaugh2435hex.freeserve.co.uk...
> > In message <FTmEc.609$XM6.245@attbi_s53>, Robert J. Kolker
> > <robert_kolker@hotmail.com> writes
> > >
> > >
> > >John Kennaugh wrote:
> > >
> > >> It is not a property of waves it is a property of 'waves propagated
> > >>in a medium' which have a speed which is not dependent on the
> > >>velocity of the source *because* it is constant w.r.t the propagating
> > >>medium.
> > >
> > >A wave is any time varying function that satisfies a wave equations.
> >
> > but source independence is the property of a propagating medium
> > independent of what sort of disturbance propagates in it.
>
> That theories exist that do not require such a medium trivially disproves
> your assertion. You have had this pointed out so often there must be some
> mental impairment for you to keep repeating it.
>
> Bill

Bill, you obviously misunderstand his argument. Any theory can be made up
without a physical model that can be pictured, and no doubt that's what he
meant. Like John, the only physical models for propagation that I know of
are waves and ballistic emission. Water waves serve as good visual models
for waves, and bullets for ballistic emission. I know of no such model for
physical wave propagation that does not require a medium for it to function
as a wave. If you do, please refer to it and explain how it can work, it
will be very helpful!

Thanks.
Harald

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