A Space & astronomy forum. SpaceBanter.com

Go Back   Home » SpaceBanter.com forum » Space Science » Space Station
Site Map Home Authors List Search Today's Posts Mark Forums Read Web Partners

Dynamics of an Earth Ring



 
 
Thread Tools Display Modes
  #12  
Old October 1st 04, 05:59 PM
Mike Combs
external usenet poster
 
Posts: n/a
Default

"AA Institute" wrote in message
om...

I hear a lot of noise about "mining the sky", and how asteroid mining
could become HOT property in the future. But how many of those
noise-makers have the vision to say let's grab an asteroid around the
Earth, where it would be infinitely easier to mine?

The AA Institute is the *FIRST* science authority on this planet with
the exceptional foresight, courage and boldness to put forward such
confident and robust proposals!!!


Ummm... NASA funded some studies of capturing asteroids in HEO using
mass-driver reaction tugs back in the 1970's.

http://members.aol.com/sandycombs/asteroid.jpg
from http://members.aol.com/oscarcombs/gallery.htm

--


Regards,
Mike Combs
----------------------------------------------------------------------
Member of the National Non-sequitur Society. We may not make
much sense, but we do like pizza.


  #13  
Old October 1st 04, 09:31 PM
Fleetie
external usenet poster
 
Posts: n/a
Default

Good idea, but this calls for another level of robotic articulation.
Perhaps a fly around robot with a vacuum cleaner style of suction
mechanism, pulling stuff into heavy duty plastic bags could do the
trick.


A vacuum cleaner for solid debris...

....in a vacuum!


Priceless!


Martin
--
M.A.Poyser Tel.: 07967 110890
Manchester, U.K. http://www.fleetie.demon.co.uk


  #14  
Old October 1st 04, 11:52 PM
AA Institute
external usenet poster
 
Posts: n/a
Default

"Mike Combs" wrote in message ...
"AA Institute" wrote in message
om...

I hear a lot of noise about "mining the sky", and how asteroid mining
could become HOT property in the future. But how many of those
noise-makers have the vision to say let's grab an asteroid around the
Earth, where it would be infinitely easier to mine?

The AA Institute is the *FIRST* science authority on this planet with
the exceptional foresight, courage and boldness to put forward such
confident and robust proposals!!!


Ummm... NASA funded some studies of capturing asteroids in HEO using
mass-driver reaction tugs back in the 1970's.

Alright... but were they *cranky* enough to suggest carving it out in
orbit... give the Earth its first *naturally* composed rings that will
brighten our night skies with an awe-inspiring silvery light... and
build a colony inside the captured rock... that will eventually get
blasted off towards Alpha Centauri one day???!!! - LOL...

I think not. First? second? doesn't really matter. I am only
interested in what's in our best interests. I admit, may be the
commercial and technology viabilities will rule out asteroids, but I
like to think not.

Abdul
  #16  
Old October 3rd 04, 03:51 PM
AA Institute
external usenet poster
 
Posts: n/a
Default

Herb Schaltegger wrote in message ...
In article ,
(AA Institute) wrote:

If the perigee of the asteroid's orbit is 40,000 km and say the apogee
is 200,000 km then that may be a safe option. If the apogee goes much
above 250,000 km then there's the Moon's perturbing influence to worry
about, since it orbits at around 380,000 km.


There's ALWAYS the Moon's perturbing influence to worry about. Have you
ever done any three-body problems?


Not really, but I do fully appreciate that anything other than 2-body
does not have a 'closed' analytical solution. (If you've ever been in
a 'love triangle' then you'll know exactly what I mean!)

There's a reason they can't be done
analytically, you know.


I wonder if NASA or other space authorities have done any ring
modelling around the Earth... perhaps the question never cropped up
before. I certainly think a twisted idea like carving out an asteroid
in orbit is probably outside the normal *appropriate* rules of conduct
in spaceflight research!

I expect it's something they will have to study in the future. No
matter what kind of orbital colony you establish, their effluence will
need disposal into space and sooner or later you'll end up with a ring
around the habitat scattered along its orbit around the Earth. Any
micrometeroid impacts will also result in a scattering of debris over
hundreds of years.

Especially when one of the objects is massive
enough to cause tides on the other object from 225,000 miles away, as
well as influence menstrual


You don't think the woman's cycle could be a coincidence?

Abdul
  #17  
Old October 3rd 04, 04:11 PM
Herb Schaltegger
external usenet poster
 
Posts: n/a
Default

In article ,
(AA Institute) wrote:

Especially when one of the objects is massive
enough to cause tides on the other object from 225,000 miles away, as
well as influence menstrual


You don't think the woman's cycle could be a coincidence?


Um, not really. The lunar cycle affects a great deal of human behavior.

See, e.g.,
http://www.ncbi.nlm.nih.gov/entrez/q...PubMed&dbFrom=
PubMed&from_uid=14664724

--
Herb Schaltegger, B.S., J.D.
"Never underestimate the power of human stupidity."
~ Robert A. Heinlein
http://www.angryherb.net
  #19  
Old October 3rd 04, 06:30 PM
Sander Vesik
external usenet poster
 
Posts: n/a
Default

In sci.space.policy AA Institute wrote:
Tim Auton wrote in message . ..
(AA Institute) wrote:

Before anybody gives me that look...


Too late

I wouldn't want to be on an orbital space station with some loon
blowing up asteroids around the same planet.

Fair comment, I wouldn't want to either!

So what do *you* think would make a nice, comfy orbital colony?


I don't think we presently know for sure.


I mean we've tried the Salyut, Skylab, Mir, ISS... and god knows
whatever else is coming next, with frankly very little in the way of
establishing a permanent presence in space. Granted, these were highly


Well, they did create a permanent presence in space to an extent.

*essential*, interim experience and confidence building steps. I doubt
very much I would have had the confidence to put forward starship
designs with biospheres and orbital engineering projects with asteroid
hollowing, had it not been for these early successful steps.


No. It doesn't really give much additional assurances.


So, do we need a scaled up version of another ISS style station in a
higher orbit around the Earth or would it be more beneficial to grab
an asteroid and try a fresh approach? If the asteroid is carefully
selected using prior robotic surveying, it may offer us a wealth of
mineral resources as a bonus. And part of its excavation toward
building a habitat would come from the mineral mining.


We need something desigend for teh resarch of the interesting problems,
something scaled up ISS wouldn't really be.


I hear a lot of noise about "mining the sky", and how asteroid mining
could become HOT property in the future. But how many of those
noise-makers have the vision to say let's grab an asteroid around the
Earth, where it would be infinitely easier to mine?


One first needs proof of it being economic.


The AA Institute is the *FIRST* science authority on this planet with
the exceptional foresight, courage and boldness to put forward such
confident and robust proposals!!!


Bull****.


AAI


--
Sander

+++ Out of cheese error +++
  #20  
Old October 4th 04, 07:03 AM
Christopher M. Jones
external usenet poster
 
Posts: n/a
Default

Herb Schaltegger wrote:
In article ,
(AA Institute) wrote:

Especially when one of the objects is massive
enough to cause tides on the other object from 225,000 miles away, as
well as influence menstrual


You don't think the woman's cycle could be a coincidence?


Um, not really. The lunar cycle affects a great deal of human behavior.

See, e.g.,
http://www.ncbi.nlm.nih.gov/entrez/q...PubMed&dbFrom=
PubMed&from_uid=14664724


This is just nonsense. There is no phase relationship
between the lunar cycle and menstruation. If there were
any causal relationship it would follow some pattern rather
than being completely non-correlated. Also, the period of
a women's menstrual cycle is not even remotely the same as
that of the lunar cycle. The average is off by at least a
day (for either synodic or sidereal period), not to mention
the fact that the menstrual cycle can vary by several days.
Additionally, there is much wider variation in menstrual
cycles across different species, if something like the
moon were effecting the process there wouldn't be such high
variation.

I can't believe I'm even responding to something so inane.
 




Thread Tools
Display Modes

Posting Rules
You may not post new threads
You may not post replies
You may not post attachments
You may not edit your posts

vB code is On
Smilies are On
[IMG] code is On
HTML code is Off
Forum Jump

Similar Threads
Thread Thread Starter Forum Replies Last Post
Space Calendar - August 27, 2004 Ron Misc 14 August 30th 04 11:09 PM
Space Calendar - November 26, 2003 Ron Baalke History 2 November 28th 03 10:21 AM
Space Calendar - August 28, 2003 Ron Baalke Misc 0 August 28th 03 05:32 PM
Space Calendar - July 24, 2003 Ron Baalke Misc 0 July 24th 03 11:26 PM


All times are GMT +1. The time now is 07:26 PM.


Powered by vBulletin® Version 3.6.4
Copyright ©2000 - 2024, Jelsoft Enterprises Ltd.
Copyright ©2004-2024 SpaceBanter.com.
The comments are property of their posters.