Re: Doomsday Dec 21 2012

On Mar 5, 10:34 am, Odysseus <odysseus1479...@xxxxxxxxxxxx> wrote:
In article <fqinru$h1...@xxxxxxxx>,
 Puerstinger Josef <nos...@xxxxxxxxxxxxxx> wrote:

Protagonist wrote:
Dave W. wrote:
part of my reply was NOT! correct? Which part was that?
Perhaps you could give a precise definition of the 'end' of
precession?

Like, 1 day or 24 hours for Earths rotation?
Hard to understand it?

(1) Earth rotation doesn't take 1 day or 24 hours, only approx. 23h
56min 4.091s

Cue Oriel ...


Stick with the value if you wish,you do not stand a chance of
appreciating the new orbital component which explains why we
experience variations in daylight/darkness North and South of the
Equator,variations in the natural noon cycle and many other productive
things which people can really enjoy.Even that I allow the
observational convenience of the Ra/Dec system,it shuts out so much
wonderful astronomical material and ultimately turns astronomy into a
magnification exercise.

It is astonishing that when a major modification is presented by
using actual observations of another planet and then apply the lessons
to the Earth,there is not the slightest sign of recognition that the
change in the orientation of the rings with respect to the Sun
represents a new orbital component even when the images are in front
of people -

http://asymptotia.com/wp-images/2007/08/uranus_rings.jpg

The rotational orientation of Uranus keeps the planet pointing in one
direction in space and really does nothing else.The change in the
orientation of the rings with respect to the central Sun is therefore
due to the orbital motion of the planet and the fact that a
location,quite apart from axial rotation,turns through 360 degrees
over the course of an annual orbit.Granted that it takes a little
effort to seperate axial rotation/orientation from orbital motion/
orientation but with the help of graphics and actual images it should
be within reach of any intelligent person.We are just fortunate enough
to have the unique rotational orientation of Uranus and specifically
its equatorial rings to guide the way -

http://physics.uoregon.edu/~jimbrau/BrauImNew/Chap13/FG13_06.jpg

Your 'sidereal time' justification runs everything off axial rotation
and celestial sphere geometry and does not recognise a change in
orbital orientation -

http://www.pfm.howard.edu/astronomy/Chaisson/AT401/IMAGES/AACHCIT0.JPG

Cue oriel indeed !,whatever attachment you have for pasting everything
to celestial sphere geometry,it is destroying the ability to
appreciate planetary motions and especially our own.These big
institutions, with all the resourses they have ,should have picked up
on the matter straight away instead of continuing to let it drift and
that remains so.The new orbital component is here to stay in any case
and if you are happy believing in solar/sidereal junk then good for
you,it should be beneath men to live with that nonsense,no matter how
established it has become.










(2) When does the current earth rotation end and the next earth rotation
start? 04:45 UT? 12:56 UT? 16:56 UT?

Likewise for the revolutions, as Dave suggested: perihelion? The
Besselian epoch (Sun at 280° longitude)? January 1? Winter solstice?
Samhain / Hallowe'en? April 1? Vernal equinox? Chinese New Year / Tet?
AFAIK all of these points in the earth's orbit or calendar year (and
doubtless several more) have been used as a reference; although there
are practical or symbolic reasons for some of them, they're largely
arbitrary.

And no evidence has yet been presented here for the claims that a) the
Maya were aware of precession or b) their calendrical cycles bore any
relation to same. Rather, just reiteration accompanied by sundry
misinformation.

--
Odysseus

.

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