[FPSPACE] Dual Orion capsules studied for mannedasteroidmissions

[David Portree]

Larry:

 

I remember the elevator in RED MARS. Clarke had one, too. The protagonist worked for the Martians first, proved the concept, then, after that detour, returned to Earth and built one there. And died before he saw it completed. Which says something about how big projects generally get done. 

David S. F. Portree

dsfportree at hotmail.com
dportree at usgs.gov
 
http://robotexplorers.blogspot.com/
http://beyondapollo.blogspot.com/
 
http://astrogeology.usgs.gov/About/People/DavidPortree/
 



 
> From: ljk4 at msn.com
> To: dsfportree at hotmail.com; jameseoberg at comcast.net; fpspace at friends-partners.org
> Date: Sat, 22 Aug 2009 10:17:26 +0000
> Subject: Re: [FPSPACE] Dual Orion capsules studied for mannedasteroidmissions
> 
> There was a space elevator on Mars in Kim Stanley Robinson s Red Mars trilogy. 
> 
> Clarke s most famous novel on a space elevator was The Fountains of Paradise. 
> 
> In his 195Os novel The Sands of Mars Clarke had Phobos ignited to help the colony there get extra light and warmth along with the native life forms. 
> 
> Larry
> 
> Sent via BlackBerry by AT&T
> 
> -----Original Message-----
> From: David Portree <dsfportree at hotmail.com>
> 
> Date: Sat, 22 Aug 2009 05:35:07 
> To: <jameseoberg at comcast.net>; <fpspace at friends-partners.org>
> Subject: Re: [FPSPACE] Dual Orion capsules studied for mannedasteroid
> missions
> 
> 
> Didn't Arthur C. Clarke put his first space elevator in Mars orbit? 
> 
> David S. F. Portree
> 
> dsfportree at hotmail.com <mailto:dsfportree at hotmail.com> 
> dportree at usgs.gov <mailto:dportree at usgs.gov> 
>  
> http://robotexplorers.blogspot.com/ <http://robotexplorers.blogspot.com/> 
> http://beyondapollo.blogspot.com/ <http://beyondapollo.blogspot.com/> 
>  
> http://astrogeology.usgs.gov/About/People/DavidPortree/ <http://astrogeology.usgs.gov/About/People/DavidPortree/> 
>  
> 
> 
> 
>  
> 
> ----------------
> From: jameseoberg at comcast.net
> To: dsfportree at hotmail.com; fpspace at friends-partners.org
> Subject: Re: [FPSPACE] Dual Orion capsules studied for mannedasteroid missions
> Date: Fri, 21 Aug 2009 22:41:02 -0500
> 
> 
> We won't start with an Earth-GEO elevator, anyway. 
>   
> It makes much more sense to build rotating skyhooks o[erating in lunar orbit, starting with 
> small payloads to and from the lunar surface -- 200-400 KG or so. Sample retrieval canister 
> size. Single suited astronaut size. Well within available material strength. 
>   
>   
>   
> ----- Original Message ----- 
> From: David Portree <mailto:dsfportree at hotmail.com> 
> To: dstdba at post4.tele.dk <mailto:dstdba at post4.tele.dk> ; fpspace at friends-partners.org <mailto:fpspace at friends-partners.org> 
> Sent: Friday, August 21, 2009 7:58 PM 
> Subject: Re: [FPSPACE] Dual Orion capsules studied for mannedasteroid missions 
> 
> Jens:
>  
> We won't go after a space elevator anchor point until we need a space elevator. We won't grab an asteroid and park it on the off-chance that we'll decide someday to build one. Will we need a space elevator any time soon? I'm sorry, I just don't see it, as cool as it would be.
> 
> ----------------
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