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Article #1048Re: Full moon and tides
From: Paul Singleton
Date: Tue, 22 Dec 1992 18:34
Date: Tue, 22 Dec 1992 18:34
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From article <1gojbnINNik@gap.caltech.edu>, by carl@SOL1.GPS.CALTECH.EDU (Carl J Lydick):
> =The moon is (mostly) what causes high tides. Picture the following... as
> =the moon sweeps around the earth, its gravitational pull tugs at the earth.
> =When over water, a swell develops where the pull is strongest (i.e. the
> =water is being "pulled" toward the moon). High tide is the swell approaching
> =shore.
Presumably we can combine the strong pull on seawater towards the centre
of the earth with the weaker pull towards the centre (approx) of the moon.
What is the radius of orbit of this notional centre of gravity?
----
__ __ Paul Singleton (Mr) JANET: paul@uk.ac.keele.cs
|__) (__ Computer Science Dept. other: paul@cs.keele.ac.uk
| . __). Keele University, Newcastle, tel: +44 (0)782 621111 x7355
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Path: arc1-ca.pugleaf.net!sparky!uunet!haven.umd.edu!darwin.sura.net!spool.mu.edu!agate!doc.ic.ac.uk!uknet!keele!news From: csa09@seq1.keele.ac.uk (Paul Singleton) Newsgroups: alt.folklore.science Subject: Re: Full moon and tides Message-ID: <BzoBLz.Irq@gabriel.keele.ac.uk> Date: 22 Dec 92 18:34:47 GMT References: <1gojbnINNik@gap.caltech.edu> Sender: news@gabriel.keele.ac.uk (UseNet News Service) Organization: Keele University, England Lines: 16 Nntp-Posting-Host: seq1.cc.keele.ac.uk