Re: virtual particles preferred frame?

[Leigh Palmer <palmer@SFU.CA>]

There is an important difference between zero mass density and
nonzero uniform density. The latter is gravitationally unstable,
especially if it is affected by ordinary mass embeded in it.

Leigh

At 8:07 AM -0800 11/8/99, Glenn A. Carlson wrote:
> There is another way to get the measureable properties of a vacuum
> (zero net gravitational attraction, zero net electric field, zero net
> magnetic field, zero energy, etc.).  E.g., to get a zero net
> gravitational attraction, one could be surrounded by zero mass
> density, but one could also be immersed in a uniform and infinite sea
> of positive mass particles.  The mass density is not zero, but the net
> gravitational attraction is.  Zero mass density would result in a zero
> net gravitational field, but that is not the situation I hypothesized;
> virtual particles do not have negative mass.
>
> Glenn A. Carlson, P.E.
> St. Charles County Community College
> St. Peters, MO  63376
> gcarlson@mail.win.org
>
> Subject:         Re: virtual particles preferred frame?
>   Date:         Sun, 7 Nov 1999 10:22:12 -0800
>   From:         Leigh Palmer <palmer@SFU.CA>
>
> Leigh Palmer wrote:
>
> > > Though I disagree with the statement that the mass density of the
> > > virtual particles is zero
>
> > I believe the definition of a vacuum would subsume zero mass
> > density. Mine would, anyway.