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- Path: sparky!uunet!munnari.oz.au!spool.mu.edu!agate!linus!linus.mitre.org!mwunix!m23364
- From: m23364@mwunix (James Meritt)
- Subject: Fluidic envelope on a point gravitational source suspended in a uniform field
- Message-ID: <1993Jan27.145807.25986@linus.mitre.org>
- Sender: news@linus.mitre.org (News Service)
- Nntp-Posting-Host: mwunix.mitre.org
- Organization: MITRE Corporation, McLean VA
- Date: Wed, 27 Jan 1993 14:58:07 GMT
- Lines: 33
-
-
- What would the characteristics be of the fluidic envelope (atmosphere and
- hydrosphere) of a gravitational point source (say, the earth) if it were to
- be suspended (through some magical method which would NOT affect the oceans)
- in a uniform (or near-uniform) intense (approximately 6 meters per second
- per second) gravitational field (say, from something that would become Saturn)?
-
- Off hand, I wonder about the long-term status of the atmosphere. Would the
- escape velocity on the "near" side be reduced such that the molecular velocity
- at "room temperature" be sufficient to "bleed off" the air? What WOULD the
- imposition of a uniform field over the inverse square field do the e.v.?
- Someone care to perform the integral?
-
- What would the physical distribution of the object be? On the planetary
- surface, the vector sum of the two fields would make "downhill" towards
- the primary (except in a line straight through the center of mass of the
- secondary (earth). On the "near" point, 'g' would be reduced and on the
- "far" point 'g' would be increased. The equipotential surface would
- be furthest from the center of mass of the secondary on the "far" side
- and nearest to the center of mass on the "near" side. How would this
- affect things? Would the lithosphere retain sphericality, or is the
- material strength insufficient to prevent drastic redistribution to conform
- with the equipotential shape (read: terminal earthquakes). What would
- the atmospheric pressure be, since the mass of the atmosphere would be
- on the "far" side and the 'g' is reduced on the 'near' side? Would the
- partial pressure of O2 be sufficient for respiration? Would there be
- ANY oceans & lakes on the "near" side?
-
-
- --
- James W. Meritt: m23364@mwunix.mitre.org - or - jmeritt@mitre.org
- The opinions above are mine. If anyone else wants to share them, fine.
- They may say so if they wish. The facts "belong" to noone and simply are.
-