Re: Lost Mass in Chemical Reactions

From: Franz Heymann (notfranz.heymann_at_btopenworld.com)
Date: 02/07/05 

Date: Mon, 7 Feb 2005 11:30:19 +0000 (UTC)

"Ken S. Tucker" <dynamics@vianet.on.ca> wrote in message
news:1107733531.858546.15350@l41g2000cwc.googlegroups.com...
>
> Franz Heymann wrote:
> > "Sbharris[atsign]ix.netcom.com" <sbharris@ix.netcom.com> wrote in
> > message
news:1107718978.481506.130760@l41g2000cwc.googlegroups.com...
> > > "Rest mass of the system" is not always an intuitive concept.
There
> > is
> > > a need to define "rest mass of the system" when the "system" may
be
> > > composed of parts flying away from each other (ie, some not at
rest
> > in
> > > any frame), and perhaps not even bound.
> >
> > So what?
> >
> > > Far from being a misconception,
> >
> > Far from what being a misconception?
> > There is no misconception about saying that the rest mass of a
system
> > is the mass in the frame in which the CM is at rest.
>
> No Franz, GR requires a new way of thinking,
> there is no such thing as a preferred FoR
> not even at CM, that's just a preferred Ref
> for simpleton's to use. See my post on
> "two bodies"...

That has nothing to do with the present discussion.
It is in fact a red herring.

Franz

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