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Re: Going Up!

From Sergio <invalid@invalid.com>
Newsgroups sci.physics
Subject Re: Going Up!
Date 2018-09-18 18:51 -0500
Organization Aioe.org NNTP Server
Message-ID <pns322$erb$1@gioia.aioe.org> (permalink)
References (13 earlier) <pnr8om$144f$2@gioia.aioe.org> <d8257cc7-cb6d-4537-9acc-07726a8e7fbd@googlegroups.com> <pnrhh6$1jb0$1@gioia.aioe.org> <c00a1096-b7e8-4fc4-84d3-0f4ad2317f7d@googlegroups.com> <a2cd7602-71ef-4e6c-bb0f-f0b5e8f95ea1@googlegroups.com>

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On 9/18/2018 3:29 PM, Edward Prochak wrote:
> On Tuesday, September 18, 2018 at 2:55:31 PM UTC-4, john wrote:
>> Odd
>> “You say the space elevator is impossible. Why?“
>>
>> Why don’t you suggest some logical reasons?
> 
> I think the idea from a space elevator goes back to the 1950s?
> Let me look.
> Wow was I wrong:
> "The concept of a tower reaching geosynchronous orbit was first
>  published in 1895 by Konstantin Tsiolkovsky.[3] His proposal
>  was for a free-standing tower reaching from the surface of
>  Earth to the height of geostationary orbit."
> 
> The basic idea id over 100 years old!
> 
> 
> A tower does not work as well as a tether design. With the center
> of mass slightly above geosynchronous orbit, a cable reaching down
> to earth's surface provides everything that is needed.
> 
> No danger of collapse.
> deployment is achievable, especially with today's rockets.
> 
> Only the cable is the tough part. material having consistent
> Tensile strength for a length over 35,000 km (21,000 miles)
> is a challenge.
> 
> So what do you do with it?
>  solar power conversion and transmission to earth (requires
>               high power transmission lines that long also).
>  zero gravity manufacturing
>  Human space travel research (Think ISS but higher)
>  astronomy observatory
>  tourism/entertainment/advertisement
> 
> It would have to be based at an equatorial country, one of
> 13 countries: Ecuador, Colombia, Brazil, Sao Tome & Principe,
> Gabon, Republic of the Congo, Democratic Republic of the Congo,
> Uganda, Kenya, Somalia, Maldives, Indonesia and Kiribati.
> 
> Really, at this point it is only an engineering problem
> of building the cables and getting them in place.
> 
> Enjoy,
> ed
> 

open questions;

if not a tower, what is holding the cable up ?
is it a counterweight above geosync ?
would one still have to fix cable to the ground ?
how to keep the counterweight in position ?
is the cable cutting lines of magnetic field?

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Thread

Going Up! The Starmaker <starmaker@ix.netcom.com> - 2018-09-04 10:27 -0700
  Re: Going Up! Edward Prochak <edprochak@gmail.com> - 2018-09-04 13:14 -0700
    Re: Going Up! Sergio <invalid@invalid.com> - 2018-09-04 19:09 -0500
      Re: Going Up! Edward Prochak <edprochak@gmail.com> - 2018-09-14 06:26 -0700
        Re: Going Up! john <johnsefton288@gmail.com> - 2018-09-14 07:25 -0700
          Re: Going Up! Sergio <invalid@invalid.com> - 2018-09-14 09:38 -0500
            Re: Going Up! john <johnsefton288@gmail.com> - 2018-09-14 07:43 -0700
            Re: Going Up! benj <benj.fake@gmail.com> - 2018-09-14 11:26 -0400
          Re: Going Up! Edward Prochak <edprochak@gmail.com> - 2018-09-17 10:01 -0700
            Re: Going Up! john <johnsefton288@gmail.com> - 2018-09-17 12:10 -0700
              Re: Going Up! Odd Bodkin <bodkinodd@gmail.com> - 2018-09-17 21:24 +0000
                Re: Going Up! mitchrae3323@gmail.com - 2018-09-17 14:34 -0700
                Re: Going Up! john <johnsefton288@gmail.com> - 2018-09-17 16:12 -0700
                Re: Going Up! Odd Bodkin <bodkinodd@gmail.com> - 2018-09-17 23:22 +0000
                Re: Going Up! john <johnsefton288@gmail.com> - 2018-09-18 06:29 -0700
                Re: Going Up! Odd Bodkin <bodkinodd@gmail.com> - 2018-09-18 14:30 +0000
                Re: Going Up! john <johnsefton288@gmail.com> - 2018-09-18 08:13 -0700
                Re: Going Up! Odd Bodkin <bodkinodd@gmail.com> - 2018-09-18 16:22 +0000
                Re: Going Up! john <johnsefton288@gmail.com> - 2018-09-18 10:28 -0700
                Re: Going Up! Odd Bodkin <bodkinodd@gmail.com> - 2018-09-18 18:52 +0000
                Re: Going Up! john <johnsefton288@gmail.com> - 2018-09-18 11:55 -0700
                Re: Going Up! Odd Bodkin <bodkinodd@gmail.com> - 2018-09-18 20:04 +0000
                Re: Going Up! john <johnsefton288@gmail.com> - 2018-09-18 13:11 -0700
                Re: Going Up! Odd Bodkin <bodkinodd@gmail.com> - 2018-09-18 21:27 +0000
                Re: Going Up! john <johnsefton288@gmail.com> - 2018-09-18 14:30 -0700
                Re: Going Up! Odd Bodkin <bodkinodd@gmail.com> - 2018-09-19 00:02 +0000
                Re: Going Up! john <johnsefton288@gmail.com> - 2018-09-18 17:20 -0700
                Re: Going Up! Odd Bodkin <bodkinodd@gmail.com> - 2018-09-19 00:42 +0000
                Re: Going Up! Edward Prochak <edprochak@gmail.com> - 2018-09-18 13:29 -0700
                Re: Going Up! Sergio <invalid@invalid.com> - 2018-09-18 18:51 -0500
                Re: Going Up! benj <benj.fake@gmail.com> - 2018-09-18 21:06 -0400
                Re: Going Up! Sergio <invalid@invalid.com> - 2018-09-18 21:26 -0500
                Re: Going Up! mitchrae3323@gmail.com - 2018-09-18 19:38 -0700
                Re: Going Up! Sergio <invalid@invalid.com> - 2018-09-18 21:48 -0500
                Re: Going Up! mitchrae3323@gmail.com - 2018-09-18 19:51 -0700
                Re: Going Up! john <johnsefton288@gmail.com> - 2018-09-19 07:01 -0700
                Re: Going Up! Edward Prochak <edprochak@gmail.com> - 2018-09-19 13:31 -0700
                Re: Going Up! Edward Prochak <edprochak@gmail.com> - 2018-09-19 13:29 -0700
                Re: Going Up! Sergio <invalid@invalid.com> - 2018-09-19 21:00 -0500
                Re: Going Up! Edward Prochak <edprochak@gmail.com> - 2018-09-19 13:14 -0700
                Re: Going Up! Sergio <invalid@invalid.com> - 2018-09-19 21:08 -0500
                Re: Going Up! john <johnsefton288@gmail.com> - 2018-09-18 06:34 -0700
                Re: Going Up! Odd Bodkin <bodkinodd@gmail.com> - 2018-09-18 14:30 +0000
      Re: Going Up! "Chris M. Thomasson" <invalid_chris_thomasson@invalid.invalid> - 2018-09-19 22:37 -0700
        Re: Going Up! Sergio <invalid@invalid.com> - 2018-09-20 10:09 -0500
  Re: Going Up! Haných Ltskáš <lnni@yawlucla.ha> - 2018-09-04 23:08 +0000

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