LiftPort Group is proud to announce the opening of its online store. Here you can purchase a large array of Space-Elevator related merchandise including...
brian.dunbar
brian.dunbar@...
Sep 4, 2004 11:02 pm
4716
All, The new site for the NSS space elevator chapter is up and running. For those who are intreseted the url is:http://www.nsschapters.org/nsecc/ Bert...
One major difference. The X prize is a one time payment. This new contest will have a cash payment, but the real prize will be that the company that builds it...
From what I have heard, most of the X prize guys also have business plans beyond the X prize. I'll agree that the payoff they are expecting is less than they...
... Certainly Rutan-Allen are, by a factor of 2 or 3. On the other hand the daVinci Project entrant is being done with tons of donated time and materials, and...
Brad Walsh
epibeemie@...
Sep 7, 2004 1:10 pm
4721
Space elevator dry run: next stop, the Moon by Sam Dinkin Tuesday, September 7, 2004 http://www.thespacereview.com/article/220/1 In The Space Elevator by Brad...
brian.dunbar
brian.dunbar@...
Sep 7, 2004 5:46 pm
4722
... Is it clear that this guy has no idea? You can't simply conclude that because surface lunar gravity is 1/6 of Earth that the tether only has to be 1/6 as...
... Interestingly, that's not really true. There are two possible locations for lunar SEs: extending toward the Earth from the nearside lunar equator through...
... So Bob (or anyone else with proper insight)- What is the required tensile strength of the material for either an L1 or L2 Lunavator cable (ribbon)? (I am...
... Both kinds of rotation generate their own forces. The rotation of the Moon about its axis, as the SE rotates with it, generates on the SE a centripedal...
... the ... a ... in ... the ... generates ... After posting this, I thought about it. I realized that in the case of an SE at L2, you are in fact right. The...
... Well, I could quibble and say that I was talking about the mechanisms _holding up_ the three SEs, and the L1 SE is not being held up by its rotation around...
Here is a link for the contest descriptions. Is anyone intrested in entering one of three of these contest? http://www.elevator2010.org/site/competition.html ...
... the ... I don't know about that, but what we need is more hands-on experiments, not just paper-studies. In that sense this competition is very good. I...
The lunavator is of course not a new idea. See, for example: http://www.zadar.net/space-elevator/#MOON In there, the lunavator is 680,000 km, and I have seen...
... putting ... into ... ********************************************************************* The balloon approach sound similar to the airship to orbit...
Hi All JP Aerospace's Dark Sky Station needs to be "parked" in a polar gyre for stability, else station-keeping will be a major problem. I guess it could be ...
I was aware of the Ascender program but had not seen the DSS before. It sounds like the very thing, except that they want to use the Ascender to get there. I...
Should always check of course ... Lunavator is actually a Tethers Unlimited trademark for their Cislunar Tether Transport System, which is what I meant when I...
... Well, since there can be only two, and one goes through the Earth-Moon L1 point and the other through the E-M L2 point, why not call them the L1 SE and the...
... Howard Taylor has dubbed his lunar space elevator the 'Hellevator', which I note is not a bad name for something like that - or an earth-based SE either. ...
brian.dunbar
brian.dunbar@...
Sep 14, 2004 3:50 am
4739
Hey guys, I'm having trouble following this thread. On the website it refers to DSS being 'parked' but does this necessarily mean tethered to a fixed point on...
Thanks Brian... I hadn't gotten that far in SM yet :o) Randy...
RanulfC@...
Sep 14, 2004 7:16 pm
4741
... No tether is mentioned anywhere in the actual Dark Sky Station proposal. It would be a 'free-flying' platform with an active thruster system. (Probably low...
RanulfC@...
Sep 14, 2004 7:23 pm
4742
I suggested a tethered balloon platform. It was then pointed out that a balloon platform concept already existed. However, that concept does not include a...
Hi Graham You haven't missed the point at all. Wind speed doesn't necessarily drop in the stratosphere - that's the problem. According to JP Aerospace the...
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