Re: Doomsday Dec 21 2012

On Sun, 02 Mar 2008 19:20:56 -0800, Protagonist <szaki10@xxxxxxxxxxx>
wrote:

Dave W. wrote:
On Sun, 02 Mar 2008 12:21:55 -0800, Protagonist <szaki10@xxxxxxxxxxx>
wrote:

Maya long calender ends on Dec 12 2012, many doomsday scenarios exist
out there about this day.
Looking it my Starry night program for that day, shows interesting
planetary alignment.
Dec 12 2012 all planets will be up in the sky, including the Moon and Pluto.
Sun is rising up in the Milky way, just below the Eagle nebula.
For Free masons represents the rise of the Phoenix!
This suppose to be the end of Earths precession, occurs every 26,000 years.
Any comments, corrections from the more knowledgeable?
JS

Precession is a continuous process and doesn't 'end', it just keeps
going. It's rather like saying that the earth has reached the 'end' of
its orbit around the sun.

Dave W.

Correct and NOT!
The Earth's rotation axis is not fixed in space. Like a rotating toy
top, the direction of the rotation axis executes a slow precession with
a period of 26,000 years.
Maya calender took this in account very accurately.
Not bad for savages in the jungle 3 thousands years BC, no optics or
computers, while 1500 AD Europe they were still arguing about if the
Earth was flat!
JS

So part of my reply was NOT! correct? Which part was that?
Perhaps you could give a precise definition of the 'end' of
precession?

Dave W.
.

Relevant Pages

  • Re: Doomsday Dec 21 2012
    ... Dave W. wrote: ... Looking it my Starry night program for that day, shows interesting planetary alignment. ... This suppose to be the end of Earths precession, occurs every 26,000 years. ... Like a rotating toy top, the direction of the rotation axis executes a slow precession with a period of 26,000 years. ...
    (sci.astro.amateur)
  • Re: Decent Gyro chips?
    ... A Foucault pendulum has to follow the earth, but a gimballed gyro doesn't, so it doesn't exhibit the precession. ... The distinction is that when something precesses, its axis moves with respect to an inertial frame, due to an applied torque component perpendicular to the rotation axis. ...
    (sci.electronics.design)
  • Re: Doomsday Dec 21 2012
    ... Dave W. wrote: ... Looking it my Starry night program for that day, shows interesting planetary alignment. ... This suppose to be the end of Earths precession, occurs every 26,000 years. ... Like a rotating toy top, the direction of the rotation axis executes a slow precession with a period of 26,000 years. ...
    (sci.astro.amateur)
  • Re: Geosynchronous orbits
    ... effect your belief that it is the rotation of the Earth is causing the ... rotates beneath it therefore the observed 'precession' is not ... something intrinsic to the pendulum itself but a consequence of daily ...
    (sci.astro.amateur)
  • Re: Geosynchronous orbits
    ... effect your belief that it is the rotation of the Earth is causing the ... something intrinsic to the pendulum itself but a consequence of daily ...  If there was no precession, ...
    (sci.astro.amateur)
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