Article View: sci.physics
Article #835Re: Computational Science Fiction (CSF)
From: Bruce Scott
Date: Fri, 07 Aug 1992 14:18
Date: Fri, 07 Aug 1992 14:18
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Bj|rn Alsberg <alsberg@math.uio.no> writes:
>
>Here is a few other examples of CSF applications:
>
>- Simulations of the gravitational field of an Earth sized torus.
>What are the effects on the atmosphere and the sea level at different
>locations at the surface.
>Other strange shapes could also be of interest in such a study.
Toroid and other strangely shaped planetary masses do not occur in
nature for a reason: gravity is very much stronger than material
strength for any rock or metal body larger than a few 100 km.
Continents on Venus and the Tharsis region on Mars are the largest
non-isostatically supported masses known on large bodies, and these are
only small perturbations to their parent planets. Even in the case of
Ringworld, the highly artificial "scrith" had to be invoked since Niven
knew well that the tensile strength necessary for the construction
material needed be many orders of magnitude larger than known materials.
I do agree however that the atmospheric equilibrium problem, as well as
dynamical transport, is very interesting.
Gruss,
Dr Bruce Scott The deadliest bullshit is
Max-Planck-Institut fuer Plasmaphysik odorless and transparent
bds at spl6n1.aug.ipp-garching.mpg.de -- W Gibson
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Newsgroups: sci.physics Path: arc1-ca.pugleaf.net!sparky!uunet!decwrl!concert!samba!usenet From: Bruce.Scott@bbs.oit.unc.edu (Bruce Scott) Subject: Re: Computational Science Fiction (CSF) Message-ID: <1992Aug7.141819.27976@samba.oit.unc.edu> Summary: toroidal planetary equilibria?! Sender: usenet@samba.oit.unc.edu Nntp-Posting-Host: lambada.oit.unc.edu Organization: Extended Bulletin Board Service References: <CMM.0.90.2.713030681.alsberg@delphi.uio.no> Date: Fri, 7 Aug 1992 14:18:19 GMT Lines: 31