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Re: Check this out
Posted By: KnightPremier <Knight_Premier@hotmail.com>Date: 5/15/06 12:03 p.m.

In Response To: Re: Check this out (Anton P. Nym (aka Steve))

: That'd be true if they were static objects built under compression, like
: pillars or chimneys.

: Space elevators, however, are built under tension . They don't collapse,
: they snap , like cable-stayed structures; the failure mode of the tether
: being broken near the ground is to have the structure pull up , casting
: debris in its wake.

: Google rawks; MIT has animations of space tethers breaking though they're a
: touch large-scale... the specific case we're talking about is this one ,
: a snap near the anchor.

: I could see some of the debris being flung westerly from the release of
: tension, though that's a gut feeling.

: -- Steve probably shouldn't trust his gut with energies on this scale. (Can
: anybody guess how loud the snap would be?)

Nice find on the animations! However, I think the example we should look at are that of the elevator breaking around 3/4 the way up or even at the counter-weight. The reason I'd say this is that the 'counter-weight' isnt going to be just a huge block of depleted uranium, its going to be a spacestation. The station could be designed to sever itself from the tether if there were ever any signs of trouble, so that it could manuver itself into a chosen orbit without the forces of the free tether acting upon it. Theres also atmospheric effects to think about, and I wonder just how *high* the slip-stream blast went, oscillations in the tether etc.

Message Index



Replies:

Significance of Forerunner location in H3 TrailerBeastIce 5/14/06 12:05 p.m.
     Re: Significance of Forerunner location in H3 TraiLostRock11 5/14/06 12:53 p.m.
           Re: Significance of Forerunner location in H3 TraiStephen L. (SoundEffect) 5/14/06 2:29 p.m.
                 Re: Significance of Forerunner location in H3 TraiLostRock11 5/14/06 3:51 p.m.
     Re: Significance of Forerunner location in H3 Traisilentsailor 5/14/06 2:02 p.m.
           Re: Significance of Forerunner location in H3 TraiDundradal 5/14/06 5:12 p.m.
     Re: Significance of Forerunner location in H3 TraiApe Man 5/14/06 7:31 p.m.
           Where've you been, man????UrsusArctos 5/14/06 7:50 p.m.
                 Check this outQuantum 5/14/06 8:00 p.m.
                       Re: Check this outApe Man 5/14/06 8:19 p.m.
                             front-paged *NM*Miguel Chavez 5/14/06 8:48 p.m.
                             Re: Check this outShadowsniper689 5/14/06 9:01 p.m.
                                   Re: Check this outgunluva 5/14/06 9:07 p.m.
                                   Re: Check this outnjdshadow 5/14/06 9:13 p.m.
                                         Re: Check this outQuantum 5/14/06 9:21 p.m.
                                               Re: Check this outUrsusArctos 5/14/06 9:54 p.m.
                                               Re: Check this outfludblud 5/15/06 8:06 a.m.
                                                     Re: Check this outStephen L. (SoundEffect) 5/15/06 7:28 p.m.
                                   Re: Check this outQuantum 5/14/06 9:15 p.m.
                                   Re: Check this outAnton P. Nym (aka Steve) 5/14/06 10:00 p.m.
                                         D'oh! For "strait" read "estuary". *NM*Anton P. Nym (aka Steve) 5/14/06 10:24 p.m.
                                   Re: Check this outApe Man 5/15/06 11:18 a.m.
                             Re: Check this outJLChief 5/14/06 9:07 p.m.
                             Re: Check this outMasta Chef 5/14/06 10:01 p.m.
                                   Re: Check this outSaS 5/14/06 10:07 p.m.
                                         Re: Check this outJLChief 5/15/06 1:42 a.m.
                             Re: Check this outAnton P. Nym (aka Steve) 5/14/06 10:16 p.m.
                                   that's pretty amazing *NM*Miguel Chavez 5/14/06 10:25 p.m.
                                   Re: Check this outKnightPremier 5/15/06 12:03 p.m.
                                         Re: Check this outAnton P. Nym (aka Steve) 5/15/06 9:06 p.m.
                                               Re: Check this outKnightPremier 5/16/06 4:04 a.m.
                             Re: Check this outMarkHawk 5/15/06 6:11 a.m.
                             Wouldn't it really fall west?Dry Ice 5/15/06 7:08 a.m.
                                   Re: Wouldn't it really fall west?Anton P. Nym (aka Steve) 5/15/06 8:10 a.m.
                                         Re: Wouldn't it really fall west?Dry Ice 5/15/06 9:53 a.m.
                                               Or maybe only 20min to fall 30 miles *NM*Dry Ice 5/15/06 10:32 a.m.
                                               RegardlessMiguel Chavez 5/15/06 12:45 p.m.
                                   Re: Wouldn't it really fall west?Ape Man 5/15/06 11:06 a.m.
                                         Re: Wouldn't it really fall west?UrsusArctos 5/15/06 7:01 p.m.
           Re: Significance of Forerunner location in H3 TraiKnightPremier 5/15/06 4:23 a.m.
                 Re: Significance of Forerunner location in H3 TraiExodus7 5/15/06 4:51 a.m.
                       Re: Significance of Forerunner location in H3 TraiExodus7 5/15/06 1:06 p.m.
                       Re: Significance of Forerunner location in H3 Traisorahn 5/15/06 3:13 p.m.
                             Re: Significance of Forerunner location in H3 TraiKnightPremier 5/16/06 4:17 a.m.
     Voi or New Mombasa?yakaman 5/15/06 1:45 p.m.
           Ah, I understand now. Narc's recap is teh bomb. *NM*yakaman 5/15/06 4:11 p.m.
           Re: Voi or New Mombasa?Exodus7 5/15/06 4:37 p.m.



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