Re: Earth rotation

From: OG (owen_at_gwynnefamily.org.uk)
Date: 07/02/04 

Date: Fri, 2 Jul 2004 22:40:43 +0100

"Oriel36" <geraldkelleher@hotmail.com> wrote in message
news:273f8e06.0407020906.7545f132@posting.google.com...
> "OG" <owen@gwynnefamily.org.uk> wrote in message
news:<2keanvF1dqt2U1@uni-berlin.de>...
> > "Oriel36" <geraldkelleher@hotmail.com> wrote in message
> > news:273f8e06.0406260449.6c36d1cd@posting.google.com...
> > >
> > >
> > > You are assuming that the Earth's equatorial orientation to the Sun
> > > changes but as already stated,equatorial orientation is a property of
> > > the Earth axial orientation as an independent motion which remains
> > > constant throughout its annual orbit.
> >
> > Hang on a minute - the Earth's equatorial orientation _to the Sun_ DOES
> > change
> > throughout the year. The axial orientation remains the same, but since
the
> > equator is inclined to the ecliptic, the equatorial orientation to the
Sun
> > is bound to change. How strange that you don't see this.
> >
>
> I understand that you did not think the whole thing through carefully
> enough,not so much that I fault you for it is standard thinking for
> the last 300 years but I assure you that Equatorial orientation as a
> property of axial rotation is always tangential to axial orientation.

I said "Equatorial orientation _to the Sun_ does change"
you say "axial orientation is fixed"

What makes you think that the statements are incompatible. I even emphasised
the "_to the Sun_" sub clause. How did you miss it?

Do you honestly think that the Sun always has the same orentation relative
to the Earth's equatorial plane?
I emphasise the sub-clause "relative to the Earth's equatorial plane"

Do you really think that the sun has the same orientation to the equator
both Summer and Winter? Really?

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