SETI [Fwd: [META] [acc-list] physics question... and sad news]


Robert Owen (rowen@technologist.com)
Tue, 28 Sep 1999 03:53:59 -0400


Larry Klaes wrote:

> From: Larry Klaes <lklaes@bbn.com>
>
> >X-Authentication-Warning: clarke.lac.usp.br: mail set sender to
> owner-acc-list@clarke.lac.usp.br using -f
> >Delivered-To: acc-list@lsi.usp.br
> >Date: Mon, 27 Sep 1999 11:10:24 -0700
> >To: acc-list@lsi.usp.br
> >From: Rob McCann <rmccann@mail.arc.nasa.gov>
> >Subject: [acc-list] physics question... and sad news
> >Sender: owner-acc-list@clarke.lac.usp.br
> >
> >
> >Hi, everybody... I just wanted to, first, pass on the sad news that Marion
> >Zimmer Bradley suffered a massive heart attack last week, and died on
> >Saturday. Two of her best Darkover novels, The Heritage of Hastur and The
> >Forbidden Tower, made the final Hugo ballot in the late 1970's. To those
> >of you who are unfamiliar with her work, and like a broader diet than Sir
> >Arthur's brand of hard SF, I recommend her highly.
> >
> >
> > And also... the article Larry forwarded last week connecting
> >Europa's surface topography to tidal movements in the subsurface ocean
> >listed a potential ocean depth of 70 miles.
> >
> > 70 miles! That is roughly 10 times as deep as the deepest point in
> >our oceans. That got me wondering about the mathematical relation between
> >depth and pressure. Is this relation entirely determined by the mass
> >(gravitational pull) of the planet, and so would be considerably shallower
> >on Europa than on Earth? Otherwise, at the bottom of the European ocean,
> >where thermal vents might lie, the pressure might be too great to support
> >life-as-we-know-it.
> >
> > RSM
> >
> >************************************
> >Dr. Robert McCann
> >San Jose State University Foundation
> >Tel: (650) 604-0052
> >Fax: (650) 604-3323
> >e-mail: rsm@eos.arc.nasa.gov
> >************************************

=======================
Robert M. Owen
Director
The Orion Institute
57 W. Morgan Street
Brevard, NC 28712-3659 USA
=======================



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