Re: The death of open access unmoderated astro groups? – part 2

On Sep 13, 5:13 pm, oriel36 <kelleher.ger...@xxxxxxxxx> wrote:
even though I am under
no obligation to technically explain why there is no merit to your
calendrically driven clockwork system of Flamsteed/Newton, I have done
so.

You have tried, but in the writings of Copernicus and Kepler and
Huyghens, all we can see is perfect conformance to the further
developments of Flamsteed and Newton, and in your own explanations, we
can scarce divine the sense.

I do not even know whether you claim that we mistakenly claim the
Earth's axis changes its tilt, or that you claim you have discovered
that the Earth's axis does change its tilt, as we did not realize.
Sometimes you seem to be saying the one, and other times the other.

I know what we believe. It is that the Earth's axis points always in
one direction (for short times much less than 2,000 years, so
precession may be neglected) and thus Polaris is always the North
Star...

but that, in a heliocentric solar system, the Earth revolves around
the Sun, and this revolution is in an ellipse (as Kepler noted) and
this ellipse lies on a flat plane which also includes the Sun, this
plane being called the ecliptic,

and that, as the direction of the Earth's axis of rotation is *not*
perpendicular to the Ecliptic, as the direction from the Earth to the
Sun rotates around a full 360 degree circle in the course of a year,
the angle between the line from the center of the Earth to the North
Pole and the line from the center of the Earth to the Sun changes from
acute in the Summer to right in the Fall to obtuse in the Winter.

John Savard
.

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