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Re: What does gravity do to wobble the Earth?

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J. J. Lodder wrote:
> 
> Mikko <mikko.levanto@iki.fi> wrote:
> 
> > On 2022-05-30 08:17:09 +0000, J. J. Lodder said:
> >
> > > mitchr...@gmail.com <mitchrae3323@gmail.com> wrote:
> > >
> > >> How does solar gravity do it?
> > >> And why do all objects not wobble?
> > >
> > > See any textbook on it, ever since Newton.
> > > But you are lazy, so you ask us.
> > >
> > > The sun pulls on the Earth, and the Earth is flattened, an ellipsoid.
> > > The pull on the far bulge (as seen from the sun)
> > > is smaller than the pull on the near bulge,
> > > hence there is a net torque, hence there is a precession
> > > as with any top.
> >
> > Not only Sun but also Moon pulls the near side more than the far side.
> > Althought the force by Moon is smaller than the force by Sun, the
> > difference between near and and far sides is greater by Moon than
> > by Sun. Therefore Moon's contribution to the precession is greater
> > than Sun's. In addition, Moon, unlike Sun, is not always on Ecliptic,
> > making the inclination of the plane of Equator vary. For the motion
> > of North Pole this means that North Pole is not moving along a circle
> > but moves sometimes to one side and other times to the other side of
> > that circle.
> 
> Yes, of course, but poor mitchr... is already incapable
> of understanding it for the idealised case of only the sun pulling,
> (as happens for Venus)
> 
> Jan

Venus? Did you know Jan there is life on planet Venus?


-- 
The Starmaker -- To question the unquestionable, ask the unaskable,
 to think the unthinkable, mention the unmentionable, say the unsayable,
and challenge
 the unchallengeable.

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What does gravity do to wobble the Earth? "mitchr...@gmail.com" <mitchrae3323@gmail.com> - 2022-05-29 23:27 -0700
  Re: What does gravity do to wobble the Earth? nospam@de-ster.demon.nl (J. J. Lodder) - 2022-05-30 10:17 +0200
    Re: What does gravity do to wobble the Earth? "mitchr...@gmail.com" <mitchrae3323@gmail.com> - 2022-05-30 12:10 -0700
      Re: What does gravity do to wobble the Earth? nospam@de-ster.demon.nl (J. J. Lodder) - 2022-05-30 22:25 +0200
        Re: What does gravity do to wobble the Earth? "mitchr...@gmail.com" <mitchrae3323@gmail.com> - 2022-05-30 20:59 -0700
      Re: What does gravity do to wobble the Earth? Mikko <mikko.levanto@iki.fi> - 2022-05-31 13:35 +0300
      Re: What does gravity do to wobble the Earth? Sylvia Else <sylvia@email.invalid> - 2022-07-02 22:42 +1000
        Re: What does gravity do to wobble the Earth? "mitchr...@gmail.com" <mitchrae3323@gmail.com> - 2022-07-02 10:24 -0700
          Re: What does gravity do to wobble the Earth? Paul Alsing <pnalsing@gmail.com> - 2022-07-04 18:45 -0700
            Re: What does gravity do to wobble the Earth? nospam@de-ster.demon.nl (J. J. Lodder) - 2022-07-05 10:22 +0200
              Re: What does gravity do to wobble the Earth? Maciej Wozniak <maluwozniak@gmail.com> - 2022-07-05 01:47 -0700
    Re: What does gravity do to wobble the Earth? Mikko <mikko.levanto@iki.fi> - 2022-05-31 13:28 +0300
      Re: What does gravity do to wobble the Earth? nospam@de-ster.demon.nl (J. J. Lodder) - 2022-05-31 13:41 +0200
        Re: What does gravity do to wobble the Earth? The Starmaker <starmaker@ix.netcom.com> - 2022-05-31 10:07 -0700
          Re: What does gravity do to wobble the Earth? The Starmaker <starmaker@ix.netcom.com> - 2022-06-05 16:12 -0700
            Re: What does gravity do to wobble the Earth? "Ross A. Finlayson" <ross.finlayson@gmail.com> - 2022-06-30 03:23 -0700
              Re: What does gravity do to wobble the Earth? "mitchr...@gmail.com" <mitchrae3323@gmail.com> - 2022-06-30 12:26 -0700
            Re: What does gravity do to wobble the Earth? "Ross A. Finlayson" <ross.finlayson@gmail.com> - 2022-06-30 03:27 -0700
              Re: What does gravity do to wobble the Earth? whodat <whodaat@void.nowgre.com> - 2022-06-30 14:50 -0500
                Re: What does gravity do to wobble the Earth? "Ross A. Finlayson" <ross.finlayson@gmail.com> - 2022-07-01 13:55 -0700
                Re: What does gravity do to wobble the Earth? "mitchr...@gmail.com" <mitchrae3323@gmail.com> - 2022-07-01 18:04 -0700
        Re: What does gravity do to wobble the Earth? "mitchr...@gmail.com" <mitchrae3323@gmail.com> - 2022-06-05 11:05 -0700
      Re: What does gravity do to wobble the Earth? "Ross A. Finlayson" <ross.finlayson@gmail.com> - 2022-05-31 07:49 -0700
  Re: What does gravity do to wobble the Earth? The Starmaker <starmaker@ix.netcom.com> - 2022-05-30 11:12 -0700
    Re: What does gravity do to wobble the Earth? "mitchr...@gmail.com" <mitchrae3323@gmail.com> - 2022-05-30 12:11 -0700
      Re: What does gravity do to wobble the Earth? The Starmaker <starmaker@ix.netcom.com> - 2022-05-30 12:36 -0700
        Re: What does gravity do to wobble the Earth? "mitchr...@gmail.com" <mitchrae3323@gmail.com> - 2022-05-30 12:38 -0700
          Re: What does gravity do to wobble the Earth? "Ross A. Finlayson" <ross.finlayson@gmail.com> - 2022-05-30 12:57 -0700
        Re: What does gravity do to wobble the Earth? The Starmaker <starmaker@ix.netcom.com> - 2022-05-31 10:38 -0700
          Re: What does gravity do to wobble the Earth? The Starmaker <starmaker@ix.netcom.com> - 2022-06-01 21:52 -0700
            Re: What does gravity do to wobble the Earth? The Starmaker <starmaker@ix.netcom.com> - 2022-06-03 15:27 -0700

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