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Re: Chaotic Motion?
Posted By: Butcher <cbutcher@cs.otago.ac.nz>	Date: 10/21/99 4:25 p.m.
In Response To: Chaotic Motion? (Loren Petrich) > Halo's orbit around Jonesworld is either not chaotic or chaotic > within a limited range (its position in orbit may be chaotic > over large timescales, but this will have little effect on its > average orbit distance) but the same cannot be said of its > rotation. Considered without any of the gyroscope-like effects due to its structure, the Halo's orbit will be dynamically stable. The Lagrangian points (specifically, the Trojan points) were first discovered because anything that starts there *stays* there, unless it gets hit by some other object and knocked out of orbit. L1 [where the Halo is] isn't as stable as the Trojan points, but it's still pretty stable. It would be interesting to add in the contributions caused by the Halo's angular momentum. But the mathematics are well beyond me with this much sleep, so I think I'll pass. :) > Thus, for Halo's contents to be retained or at least not > upended, Halo must spin faster than it orbits. I think we already know this, based on the fact that there appears to be Earth-like gravity inside the Halo - this gives us a rotational period on the order of an hour and a half, from memory. > Maybe I should create some interactive Halo simulator and code > it as a Java applet. That would be interesting, certainly. - Butcher

Message Index

Chaotic Motion?	Loren Petrich	10/21/99 2:31 a.m.
Re: Chaotic Motion?	Butcher	10/21/99 4:25 p.m.
Re: Chaotic Motion?	Loren Petrich	10/21/99 6:09 p.m.
Halo's Motion	Nathan	10/22/99 9:26 a.m.
Re: Halo's Motion	Loren Petrich	10/22/99 4:51 p.m.
Re: Chaotic Motion?	Butcher	10/22/99 5:51 p.m.
Re: Chaotic Motion?	Dispatcher	10/21/99 8:30 p.m.
Re: Chaotic Motion?	Loren Petrich	10/22/99 12:08 a.m.
Re: Chaotic Motion?	Daft Shadow =PN=	10/22/99 12:43 a.m.
Halo Precession Simulator	Loren Petrich	10/22/99 2:01 a.m.
Re: Chaotic Motion?	Toby Haynes	10/22/99 9:21 a.m.
Re: Chaotic Motion?	Loren Petrich	10/22/99 4:09 p.m.