That is strong for paper, but way less than Kevlar (~3,000 Mpa) Here is a better link to the article: http://tinyurl.com/3toflo Jolly Roger Curnow ;-)X ...
... You need a minimum of 40 GPa, 40,000MPa usable tensile strength together with a relative density of about 2.5 to make a space elevator. So no, you would...
... You mean, to make a standard model elevator. Building a lunar L1 elevator even long enough to scrape our atmosphere is possible with existing materials...
... Oh, for a lunar elevator, sure. ... If by 'scrape our atmosphere' you mean get within ~100km of the Earth, I'm afraid that that's not possible with a...
... The idea doesn't really make sense anyway. The distance from the Earth to the Moon varies by about 50,000 km. That's a lot of reeling in or reeling out to...
... 42,000. ... It is, and that's the worst problem I've seen for a cislunar spanning elevator. It would require reeling part of it in and out at a rate of ...
A lunar space elevator could run through L1 and havee its "high point" on the Earth side of L1 some distance further; the Earth's gravity would help...
... It pretty much has to go beyond L1, doesn't it? You don't get a net upward force until you're high enough that centripetal overcomes gravity and, given how...
... You mean centrifugal, not centripetal (the Earth-moon system is easiest to analyse in a rotating reference frame- centrifugal force is 'real' in that...
... I'm not sure what you mean by "it" in this sentence. A luna-synchronous orbit? That would be an orbit around the Moon in which a satellite stays...
... L1 and L2 *are* lunasynchronous orbits. They're somewhat unstable, but not ridiculously so, and it turns out that they're stable enough to support space...
... Actually, Earth's gravity would have to *counteract* the centripetal force trying to push the entire lunar elevator towards the moon. The earth/moon...
In a message dated 6/13/2008 10:27:52 P.M. Central Daylight Time, kerrywilliams@... writes: "And then there's the lunar H3 that we'd be given instant...
GEddieA95@...
Jun 14, 2008 3:32 am
8306
... I don't think your wording there is quite correct. A near-side lunar SE is supported by the counterweight being in an area where the Earth's gravity...
... The earth/moon barycenter is within the earth, but I think I just said that. ... Exactly. Sort of. ... I just uploaded one to the files section It's in the...
... Good point, thanks. ... No, to get to the *tip* of the L1 elevator you just need 100 km of altitude with a ground speed of just over mach 1. It's fairly...
... Actually centri - petal means "center - seeking". In this context Earths gravity is (more or less) the centripetal force. The centrifugal ("center...
... Unfortunately, not without CNTs. And even with CNTs I'm pretty sure that the taper ratio is actually worse than the normal space elevator if you try to go...
... No reason there can't be bunches, placed just about wherever you want. And interconnected for multiple redundancy, among other things. ... No kidding!...
http://xkcd.com/123/ ... From: Ian Woollard <ian.woollard@...> Subject: Re: [space-elevator] Cislunar Elevator To: space-elevator@yahoogroups.com ...
All discussion of Lunar based space elevator should includes Jerome Pearsons work http://www.spaceelevator.com/docs/iac-2004/iac-04- iaa.3.8.3.07.pearson.pdf ...
... In terms of relative ease of acquisition, terrestrial versus lunar, it doesn't matter which he means. 3-He would be easier to make via D-D fusion, or from...
I've been following the discussion on the Lunar Space Elevator idea. While it sounds intriquing, I suspect we'll see a mass driver approach to delivering lunar...
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