Talk:Space tether

message: People in industry call these tethers momentum exchange tethers. Rotovator isn't used. I myself have never heard the term and I work with in-space propulsion. In-Space Propulsion --Belchja 02:46, 29 July 2005 (UTC)
thread_title: Rotovator

message: What's the proper spelling, "rotovator" or "rotavator" ?
(Remind me to use the proper spelling at micrometeorites ) -- DavidCary 03:41, 8 Jul 2004 (UTC)
replies: text: Rotavator is a registered trade name for a kind of agricultural machinery (short for rotary cultivator).  Rotovator was probably spelt with the O to avoid confusion. --Heron 15:23, 27 Aug 2004 (UTC)
thread_title:  "rotovator" or "rotavator" ? 

message: The tether rotates and drives the propeller of the circling aircraft. E.g.:  http://www.google.com/patents/about?id=Rp0rAAAAEBAJ&dq=3705720   Such is a torsion tether. Then another tether that propels is the endless-loop tether that drives pumps or generators.   These two tether propulsion families are to be treated in what article? Discussion is invited. Thanks.   Joefaust (talk) 05:19, 12 February 2011 (UTC)
thread_title: HELP REQUESTED  What about torsion tethers that propel circling aircraft or drive machines

message: The second reference (Bacon 2005) is very confusing. Does it refer to the source James A. Bacon, who often works with these technologies? Here is one of his articles: http://www.richmondcatalyst.com/Issue2_Kevlar.asp  —Preceding unsigned comment added by 199.211.157.2 (talk) 11:29, 5 December 2009 (UTC)
thread_title:  References 

message: I'm not sure that really belongs in the page summary, and is under a different meaning of "tether". The other techniques mentioned in this article relate to two bodies being attached by a tensile cable, creating a new centre of mass which can be manipulated for certain results (generally whilst in orbit, although tethered formation flying is not, but still involves two or more bodies being tethered together). Meanwhile, electric sails are the propulsion method of a single craft, providing thrust through an electrically charged wire (forming a sail) being pushed by the solar wind. There is no "tether" in such as the body is not attached to anything. 160.5.185.13 (talk) 15:28, 29 October 2013 (UTC)
thread_title:  Electric Sail 

message: The reference cited for the list, states those materials' strength are appropriate only for Lunar tethers, and that for Earth, the stronger carbon nanotubes are required. 
Quote from the the cited reference :
*The table below shows some candidate materials for lunar space elevators, with density, stress limit, and the breaking height (the longest cable that can be suspended in 1 g). Lunar space elevators require much lower material strengths than the Earth space elevator, which will require carbon nanotubes (shown in Table 1 for comparison). All these materials, save the carbon nanotubes, are available now.
Listing all these materials in this Wikipedia article is misleading because it gives the impression they are up to the job on Earth, which they are not. Cheers, --BatteryIncluded (talk) 13:21, 21 April 2014 (UTC)
thread_title:  Practical materials - Misleading tag. 

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thread_title:  External links modified 

message: I might be getting the wrong impression, but I believe this section could use better wording, however I feel like I should ask before editing it. 
Why is this point marked as a "technical difficulty"? I believe that it must be referring to the fact that synchronizing the movement of the tether in such a way is complicated, but it gives off the impression that the fact that both ends of the cable are at different lengths and speeds is the problem in on itself, when it is in fact the point.  — Preceding unsigned comment added by Tairetsu (talk • contribs) 08:17, 2 July 2017 (UTC)
thread_title:  Gravitational gradient stabilization - Technical difficulty?  

message: I came across what I think may be an extremely early discussion of a non-anchored (that is, non "beanstalk") tether in a short story at Gutenberg.org, from the magazine "If Worlds of Science Fiction" April 1956; "Atom Drive" by Charles L. Fontenay. http://www.gutenberg.org/files/32067/32067-h/32067-h.htm 
I'm not sure that this goes in "history", or in a pop culture reference section, which currently does not exist, but I thought it pretty interesting, as it far predates any discussion I am aware of (excluding Tsiolkovsky's original elevator idea), and I bet few others coming from the technical side know of it. Fontenay was a newspaper editor and SF writer, not an engineer that I can discover, so I wonder if he got the idea somewhere else, or had sufficient physics education to come up with the idea himself. Anyway, I leave it for anyone who feels it worthy to insert it in the article, but I leave this note here, as I am certain that tethers have a great future ahead of them, and at some point such history will be of considerable general interest.173.180.151.52 (talk) 07:20, 10 January 2018 (UTC)
thread_title:  History/pop culture