RE: Colonization of the Solar System Beyond

2008-03-01 Thread Curtis Burisch
Wayne wrote:

Has the list discussed what it will take to colonise the solar system in
the past or is that too almost on topic?

I'm pretty new here too ... I haven't seen anything of this kind of
conversation. But maybe sci-fi has moved on a bit beyond merely banal
spaceflight -- perhaps the topic had become a bit too commonplace, and the
genre as a whole has moved onto other more sophisticated foci?

It seems to me any colonisation of space will be doomed while it is 
dependent on any more than token amounts of equipment manufactured on
earth, and that with current technology it would take hundreds or perhaps
thousands of missions to Mars say, before there would be much chance of
building the infrastructure to bootstrap an independent technological
civilization.

It's pretty well accepted that using resources found in-situ is the only
far-sighted way to progress space travel. As you've pointed out, heaving
everything with you from the bottom of this gravity well is a fairly tough
prospect, so any bootstrap program would be far more likely to succeed if
the location chosen is not a planet  doesn't have the associated arduous
gravity field.

Therefore, it seems to me that the colonisation of space something that is 
going to have to wait until the singularity starts to kick in.

Whether the singularity would want to have anything to do with colonizing
space, as we see it today, is debatable. Transcendent technology would be
capable of so much more, it's hard to see a reason for space colonization in
a traditional 'sci-fi' sense.

Thus, in my view, space colonization by Homo Sapiens Sapiens is only likely
to happen before the singularity occurs.

You hit the nail on the head in your posting, in that space exploration (on
a human scale) is only feasible if we make the right choice on how to
bootstrap.

This is why we must make asteroids our first priority! They are the most
accessible resource we have in near-earth space, and only by exploiting them
can we have a sufficiently large space-borne economy to enable colonization
of the solar system. ( beyond?) 

In order to achieve this dream, we need to develop technologies to allow us
to make use of these resources. In the case of most metals, this is a
process of crushing the ore rock, and smelting the ore. Starting with small
quantities of material processed using earth-origin machinery (small factory
/ smelter ship), refine enough raw materials to manufacture more capable
facilities, which in turn allows an increase in material output, which
enables bigger smelters, and so on and so on. Smelters would be solar
powered, using very large paraboloid mirrors of lightweight construction. It
is likely that the operation would be crewed, with the heavy work done by
tele-operated robots and machines.

Most ore-processing and steel-working machinery is heavy and cumbersome, and
currently works only under earth-gravity conditions. New techniques will
have to be devised to deal with the challenge of microgravity materials
processing. If a particular process cannot be adapted to micro-g conditions,
we could always fall back on using centripetal force to simulate gravity,
which would allow us to use the same old kinds of machines that work here on
earth.

I find it pretty sad that nobody is working toward this goal. The current US
space program is doing some good work, but sadly the mission profiles target
the moon and mars -- not asteroids.

Many forward-thinking engineers in the space industry have noticed this, and
are trying to do something about it. There is now a fairly strong movement
to have the whole US space program repurposed toward asteroid habitation /
exploitation. I wish them every success.

C

Rock 'n' Roll Maru


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Brin: Life after People

2008-03-01 Thread Alberto Vieira Ferreira Monteiro
Life After People will air on 2008-03-10 21:00 on brazilian's
tetrahydrocanabiol oops... The History Channel.

Alberto Monteiro
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RE: Brin: Life after People

2008-03-01 Thread Curtis Burisch
It's tetrahydrocannabinol!

http://en.wikipedia.org/wiki/Tetrahydrocannabinol

c

History is dope Maru

-Original Message-
From: [EMAIL PROTECTED] [mailto:[EMAIL PROTECTED] On
Behalf Of Alberto Vieira Ferreira Monteiro
Sent: Saturday, March 01, 2008 6:35 PM
To: Killer Bs (David Brin et al) Discussion
Subject: Brin: Life after People

Life After People will air on 2008-03-10 21:00 on brazilian's
tetrahydrocanabiol oops... The History Channel.

Alberto Monteiro
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Huxley

2008-03-01 Thread Curtis Burisch
I thought you might like to know of the full-text copy of Aldous Huxley's
The Doors of Perception is online at
http://www.druglibrary.org/schaffer/lsd/doors.htm

Hth,
C

One thing leads to another Maru.

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Re: Brin: Life after People

2008-03-01 Thread David Brin
So the lesson is get high on life... after people...!


--- Alberto Vieira Ferreira Monteiro
[EMAIL PROTECTED] wrote:

 Life After People will air on 2008-03-10 21:00 on
 brazilian's
 tetrahydrocanabiol oops... The History Channel.
 
 Alberto Monteiro
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Re: Brin: Life after People

2008-03-01 Thread David Brin


Oh... 
I appear on several episodes of the new History
Channel show The Universe starting with one on March
11.  (USA)


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RE: Brin: Life after People

2008-03-01 Thread Jim Sharkey

Alberto Vieira Ferreira Monteiro wrote:
Life After People will air on 2008-03-10 21:00 on brazilian's
tetrahydrocanabiol oops... The History Channel.

I just finished Cormac McCarthy's _The Road_.  I've had as much life 
after people as my psyche can handle for a few days.  :-p

Great book, by the by.  If there's a chance that anyone here hasn't
read it, you should fix that.

Jim
Carrying the fire Maru

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Life after People

2008-03-01 Thread jon louis mann
  Life After People will air on 2008-03-10 21:00 on brazilian's
tetrahydrocanabiol oops... The History Channel.

Alberto Monteiro

   
  already aired in california.  good program and good riddance to the human 
race!~)
  jon



   
-
Looking for last minute shopping deals?  Find them fast with Yahoo! Search.
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Re: Colonization of the Solar System Beyond

2008-03-01 Thread Doug Pensinger
Curtis wrote:


 I'm pretty new here too ... I haven't seen anything of this kind of
 conversation. But maybe sci-fi has moved on a bit beyond merely banal
 spaceflight -- perhaps the topic had become a bit too commonplace, and the
 genre as a whole has moved onto other more sophisticated foci?


Tout au contraire.  All is Brin, as the saying goes.  Please feel free to
discuss anything and everything you wish to.

And welcome to the list to both yourself and Wayne.

As for colonization of the solar system, I'm not sure how it will play out,
but I think that one way or the other humans will colonize or at least
explore the solar system, pre or post singularity.  The way I picture it, a
person could sublime without impacting his/her human life.  Not only that,
but it would be possible to make physical copies of yourself wherever you
wanted them to be (given the necessary resources and compatible environment.

The staple in SF that I think is doomed is the ship that transports physical
humans from place to place.  Here I picture trancendant individuals able to
transport themselves at near light speed to wherever they wanted to go
without the need for a protective environment.

Doug
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