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Re: Spin that ring
Posted By: Dispatcher <madmacs@excite.com>Date: 12/20/99 9:43 p.m.

In Response To: Spin that ring (L. Tankersley ("Cap'n Carnage"))


> That brings up a side question: how wide is the ring? Well,
> let's assume it provides surface area roughly equal to that of
> the Earth. That's (very) roughly 133 million square miles - to
> provide this much area the ring would have to be about 4,000
> miles wide (to go with its 31,000 mile "length"). The
> capacity of a thousand miles of air to obscure vision is pretty
> substantial - we shouldn't expect to see much of anything on the
> horizon. So the "rim wall" to borrow a phrase from
> Niven won't really affect visibility much, after all.

.....somebody, help me out here.

I think you are about right about the wall heights of about 100 km high. I have guestimated them just a little less: 80 km. (half my scaled thickness; allowing for structure, substrata and surface features). My guesses are based on scaling the ring hologram in the movies. Yes, my assumption is that the hologram is to scale. :) I think that there is no compelling reason to make the surface area equal to that of earth's. The ring is not a creation of Terrans; so goes Halo's plot. I come up with a ring-surface width (from wall to wall) of about 640 km as opposed to your figure of 4,000 km.

> [By the way, there's a nifty little java ringworld simulator at

>
> http://www.nas.nasa.gov/Services/Education/SpaceSettlement/teacher/materials/ringworld
> /

> that lets you fiddle with ringworld parameters and see what
> ballistic trajectories look like on a ringworld.]

> L. Tankersley ("Cap'n Carnage")

I will check that Javascript out. Sounds interesting.

Dispatcher

Message Index



Replies:

Human Space CapabilityNapalm Loon 12/17/99 7:33 a.m.
     ...But where would they orbit?septimus 12/17/99 11:39 a.m.
           Re: ...But where would they orbit?Grey 12/17/99 12:40 p.m.
                 I'm dissapointed in you guys...Maxaminus 12/17/99 2:05 p.m.
                       Two possible definitions.Dispatcher 12/17/99 9:33 p.m.
                       Re: I'm dissapointed in you guys...SiliconDream =PN= 12/17/99 9:43 p.m.
           Re: ...But where would they orbit?Jägermeister 12/17/99 1:22 p.m.
                 Re: Internal orbitsMark Levin 12/17/99 2:15 p.m.
                       Re: Internal orbitsMage 12/17/99 2:32 p.m.
                             Re: Internal orbitsMark Levin 12/17/99 2:38 p.m.
                                   Re: Internal orbitsMage 12/17/99 4:13 p.m.
                                         Re: Internal orbitsMaxaminus 12/17/99 4:45 p.m.
                                               Re: Internal orbitsMage 12/17/99 11:06 p.m.
                                                     Re: Internal orbitsMark Levin 12/18/99 12:42 a.m.
                                                           Re: Internal orbitsMage 12/18/99 11:31 a.m.
                       Re: Internal orbitsMr. Eez 12/17/99 4:27 p.m.
                       Re: Internal orbitsMacGuyver 12/17/99 4:49 p.m.
                             Re: Internal orbitsMark Levin 12/17/99 5:02 p.m.
                                   Re: Internal orbitsSiliconDream =PN= 12/17/99 9:42 p.m.
                                         Uses for the Halo's axis...Noctavis =PN= 12/20/99 3:31 p.m.
                                               Stable Orbits (again)Butcher 12/21/99 1:36 a.m.
                                                     Placing a satellite in the center of the HaloNoctavis =PN= 12/21/99 10:35 a.m.
                                                           Re: Placing a satellite in the center of the HaloButcher 12/21/99 2:33 p.m.
                                                                 Unstable orbits... Why use a halo orbit?Noctavis =PN= 12/21/99 6:31 p.m.
                                                                       Tides on the HaloButcher 12/21/99 7:03 p.m.
                                                                             Re: Tides on the HaloSomeguy 12/21/99 8:00 p.m.
                                                                                   Re: Tides on the HaloButcher 12/21/99 9:35 p.m.
                                                                             Re: soell•Mimer 12/25/99 3:55 p.m.
                                                                                   Re: soellMatt 12/27/99 11:53 a.m.
                                                                                         Re: soellDaft Shadow =PN= 12/27/99 4:11 p.m.
                                                                                               Re: soellBachus 12/27/99 6:50 p.m.
                                                                       Re: Unstable orbits... Why use a halo orbit?SiliconDream =PN= 12/21/99 11:40 p.m.
                                   Re: Internal orbitsNathan 12/20/99 4:37 a.m.
                                         Re: RotationsForensic 12/20/99 11:58 a.m.
                                               Re: RotationsSiliconDream =PN= 12/20/99 2:21 p.m.
                                                     Re: Rotationsbtrinen 12/20/99 2:53 p.m.
                                                           GravitySyberSmoke 12/20/99 3:09 p.m.
                                                                 Re: GravitySiliconDream =PN= 12/21/99 11:00 p.m.
                                                           Re: RotationsNoctavis =PN= 12/20/99 3:11 p.m.
                                                           Re: RotationsAiden 12/20/99 8:08 p.m.
                                         Spin that ringL. Tankersley ("Cap'n Carnage") 12/20/99 5:12 p.m.
                                               Re: Spin that ringDispatcher 12/20/99 9:43 p.m.
                                                     Re: Spin that ringL. Tankersley ("Cap'n Carnage") 12/21/99 10:25 a.m.
                                                           Re: Spin that ringDispatcher 12/21/99 11:10 p.m.
                                               L1? or L4-5?Oddot 12/22/99 10:24 a.m.
                                                     Re: L1? or L4-5?L. Tankersley ("Cap'n Carnage") 12/22/99 2:54 p.m.
                                         Q: How do you spin the Halo?Ironfist [CMG] 12/20/99 5:41 p.m.
                                         Re: Internal orbitsChris Huff 12/20/99 6:59 p.m.
                                         Re: Internal orbitsRingdude 12/20/99 7:18 p.m.
                                               Re: Internal orbitsSiliconDream =PN= 12/21/99 11:06 p.m.
                                                     Re: Internal orbitsSomeguy 12/21/99 11:11 p.m.
                                                           Re: Internal orbitsSiliconDream =PN= 12/22/99 4:06 a.m.
                                         Re: Internal orbitsThomas Magle Brodersen 12/21/99 3:06 a.m.



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