Halo & Solar System dust [was Re: biological changes ...]

From: Robert J. Bradbury (bradbury@www.aeiveos.com)
Date: Sun Dec 05 1999 - 15:27:43 MST


On Sun, 5 Dec 1999, Amara Graps wrote:

>
> It depends how you define "vicinity". If you consider ~1 parsec
> away from the Sun as "vicinity", then that's OK. (see below)

Amara, this cracked me up. I doubt anyone but an astronomer
would consider 1 parsec (3.26 ly) as within our "vicinity".

>
> Hope that this answers your question ...
>
Very nicely. It also means that I've got to revise the MBrain
calculations a bit (since in the "vicinity" of the solar system,
things are warmer than I expected). It means that for a MBrain to
get the best internode optical communication transmission and the
least heat radiation (back from "local" dust), it is
going to have a big job to do sweeping through a large volume
of the surrounding space to get rid of all the dust (and dust
sources). That probably slows down its construction times
by quite a bit.

Would the dust density in the halo be reduced so significantly
that it might make that a much more attractive construction area?

Also, is there an estimate on the total mass of the dust in
the solar system?

Robert



This archive was generated by hypermail 2.1.5 : Fri Nov 01 2002 - 15:05:58 MST