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- From: sdoe@nmsu.edu (Stephen Doe)
- Subject: Re: Cosmos without Gravitation
- Message-ID: <1992Dec29.181629.14481@nmsu.edu>
- Sender: usenet@nmsu.edu
- Organization: New Mexico State University
- References: <1992Dec28.133106.22923@linus.mitre.org> <1992Dec29.143703.7029@hsr.no> <1992Dec29.164826.5044@linus.mitre.org>
- Distribution: world,public
- Date: Tue, 29 Dec 1992 18:16:29 GMT
- Lines: 24
-
- In article <1992Dec29.164826.5044@linus.mitre.org> m23364@mwunix (James Meritt) writes:
- >In article <1992Dec29.143703.7029@hsr.no> onar@hsr.no (Onar Aam) writes:
- >}>13. If planets and satellites were once molten masses...they would not have been
- >}>able to
- >}>obtain spherical form, especially those which do not rotate, as Mercury or the
- >}>moon (with
- >}^^^^^
- >}>respect to its primary)
- >}
- >}
- >}That is simply not true. The moon is rotating (ever heard of earth rise?)
- >}although only slightly.
- >
- >wobbles, not rotate. If it rotated, 100% would (eventually) become visable.
- >It doesn't.
-
- The moon does rotate, but the period of rotation equals the period of
- revolution about the Earth--*that's* why the same side of the moon is
- always facing us. This is due to our tidal interaction with the moon.
- If the Earth-moon system lasts long enough, someday the Earth will be
- tidally locked to the moon (i. e., always present the same side.)
-
- SD
-
-