home bbs files messages ]

Forums before death by AOL, social media and spammers... "We can't have nice things"

   sci.space.tech      Technical and general issues related to      3,113 messages   

[   << oldest   |   < older   |   list   |   newer >   |   newest >>   ]

   Message 3,003 of 3,113   
   Dr John Stockton to All   
   Re: Can nanotubes be streach between the   
   31 Mar 06 18:57:41   
   
   From: jrs@merlyn.demon.co.uk   
      
   JRS:  In article <1143552165.258456.259260@t31g2000cwb.googlegroups.com>   
   , dated Tue, 28 Mar 2006 05:22:45 remote, seen in news:sci.space.tech,   
   Cray74@gmail.com  posted :   
   >> There is no spot at the earth's pole where the moon is constantly visible.   
   >> So the earth end can't be attached at the pole.   
   >   
   >Sure it can be attached to Earth's pole. An off-equator elevator is   
   >going to show a large catenary, so the elevator cable might droop to a   
   >latitude where the moon is constantly visible.   
      
   Since the ecliptic is over 23 deg from the equator, and the Moon's orbit   
   is over 5 deg from the ecliptic, a cable attached at the North Pole   
   would at times drag over *at least* the upper 28 degrees of Earth, even   
   neglecting droop. ((( Note : this Spring, the Moon is at times almost   
   circumpolar from the northernmost UK. )))   
      
   That would upset the Inuit, many Russians, Lapps, Finns, Norwegians, and   
   Swedes, who at times would need to jump over the cable each day.   
      
   Better to build a rather tall South Pole and attach the cable to the   
   top.  Something over 900 km high should suffice.   
      
   --   
    © John Stockton, Surrey, UK.  ?@merlyn.demon.co.uk   Turnpike v4.00   MIME. ©   
    Web   - FAQqish topics, acronyms & links;   
     Astro stuff via astron-1.htm, gravity0.htm ; quotings.htm, pascal.htm, etc.   
    No Encoding. Quotes before replies. Snip well. Write clearly. Don't Mail News.   
      
   --- SoupGate-Win32 v1.05   
    * Origin: you cannot sedate... all the things you hate (1:229/2)   

[   << oldest   |   < older   |   list   |   newer >   |   newest >>   ]


(c) 1994,  bbs@darkrealms.ca