Planets' axes of rotations & their "fluctuations"

In this article
http://en.wikipedia.org/wiki/Timeline_of_evolution
one reads
According to one plausible theory, the planet Earth and the planet Theia collide,
sending countless moonlets into orbit around the young Earth.
These moonlets eventually coalesce to form the Moon.
The gravitational pull of the new Moon stabilises the Earth's fluctuating
axis of rotation and sets up the conditions in which life formed.

I am *not* looking for a discussion of the Theia collision (that's
easily found online). What I'm curious about is the "fluctuating
axis of rotation" (is this precession?). Did the Moon just "heal"
fluctuations caused by Theia, or did the Earth-Moon system
have some special stability? (My first thought was to find an on-line
table of precessions for the other planets, but my Googling skills
are too poor even for that.)

I am also curious *why* the Moon "stabilised" this axis,
and *why* this "set up the conditions in which life formed", but
I can't get past the first question: what are these fluctuations?
Did they arise from the Theia collision?

James Dow Allen

"James Dow Allen" wrote in message
...

In this article
http://en.wikipedia.org/wiki/Timeline_of_evolution
one reads
According to one plausible theory, the planet Earth and the planet Theia
collide,
sending countless moonlets into orbit around the young Earth.
These moonlets eventually coalesce to form the Moon.
The gravitational pull of the new Moon stabilises the Earth's fluctuating
axis of rotation and sets up the conditions in which life formed.

I am *not* looking for a discussion of the Theia collision (that's
easily found online). What I'm curious about is the "fluctuating
axis of rotation" (is this precession?). Did the Moon just "heal"
fluctuations caused by Theia, or did the Earth-Moon system
have some special stability? (My first thought was to find an on-line
table of precessions for the other planets, but my Googling skills
are too poor even for that.)

I am also curious *why* the Moon "stabilised" this axis,
and *why* this "set up the conditions in which life formed", but
I can't get past the first question: what are these fluctuations?
Did they arise from the Theia collision?

James Dow Allen


As I understand it, 'solo' planets such as Mars and Venus are more subject
to a varying axis of inclination than the Earth Moon system From what I
gather, the varying direction of the axis comes about because of the need to
preserve angular momentum, and the long term changes in the planets
movements leads to this wobble. However, for the Earth, the presence of the
Moon gives an alternative method of distributing angular momentum within the
system, so the Earth's axis is stabilised in that way.

I'm not aware that the precise mechanism for the origin of the Moon is
particularly relevant to this stabilisation.

I'm not an expert though.

On Feb 20, 6:12*pm, "OG" wrote:
*http://en.wikipedia.org/wiki/Timeline_of_evolution
According to one plausible theory, the planet Earth and the planet Theia
collide,
sending countless moonlets into orbit around the young Earth.
These moonlets eventually coalesce to form the Moon.
The gravitational pull of the new Moon stabilises the Earth's fluctuating
axis of rotation and sets up the conditions in which life formed.

As I understand it, 'solo' planets such as Mars and Venus are more subject
to a varying axis of inclination than the Earth Moon system *From what I
gather, the varying direction of the axis comes about because of the need to
preserve angular momentum, and the long term changes in the planets
movements leads to this wobble. *However, for the Earth, the presence of the
Moon gives an alternative method of distributing angular momentum within the
system, so the Earth's axis is stabilised in that way.

Thank you. So inclination-variartion is a different motion than the
25,000-year precession cycle, right? Any on-line tables giving the
numbers for different planets?

And, although it's outside sci.astro scope, any reaction to the idea
that this stability "sets up the conditions in which life formed"?

James

CENR leader and other criminals do not come to my town. You are banned
here forever, not depending from the results of the LHC experiment.

Between Mars and Jupiter there was a planet, which was probably
exploded with the help of collider. Now there is an asteroid belt
there.

In a week or slightly more CERN physicists can transform the Earth
into new asteroid belt.
In a billion years your remnants will drop at the decks of Venues
pirates.

Somebody asks: “Ivan, how does a magnetic hole turn a whole planet
into an asteroid belt?”

Magnetic hole grows by millions times more rapidly than black hole. It
captures protons, ruins them onto x-bosons and positrons, swallows x-
bosons and becomes bigger; eject positrons, releasing the energy,
which is equivalent to 1/3 of rest energy of proton per each act of
induced proton decay.
Let’s suppose that magnetic hole had already ruined the hundredth part
of the Earths internal core. Then the external core of the Earth will
receive the energy in the form of heat Q = (M/(3*100))*c^2. This heat
will transform the internal core’s matter from liquid state into hot
plasma. The pressure of this plasma will be so great that the Earth’s
radius will grow with acceleration. The thickness of the Earth’s
mantle and crust will become smaller. At last Earth’s surface will be
torn on peaces and start into cosmos. These filaments will be
accelerated further by plasma wind, occurring from the central region
there the magnetic hole continue to capture the rarefying plasma
matter.
I can say without any computation that about of 1/100 of Earths matter
will be captured by magnetic hole; 1/10 of Earths matter will form the
new asteroid belt; the rest of Earth’s matter will leave the Solar
system with high velocity in the form of hot plasma.
If magnetic hole will be captured by the solar magnetic field, then
the Sun will undergo an explosion as supernova or several successive
explosions as nova.
From the other had, it is not excluded, that the magnetic hole will be
thrown out from the Solar system by magnetic forces, soon after the
Earth collaptical explosion.
In a billion years your remnants will drop at the decks of Venues
pirates, if you will be happy to enter into that 1/10 of Earth’s
matter, which had formed the new asteroid belt.


Existence of high energy cosmic rays (protons or ions) does not give
any guarantee that the same particle collisions are safe at head-on
colliders.
Indeed “dangerous particle condensate” (Condensate) can be created at
both cases.
It is obvious that Condensate has its rest energy and binding energy.
It was proved that total binding energy of Condensate is smaller than
kinetic energy of atmospheric particles in the system of Condensate,
if it was created by collision of cosmic particle with atmospheric
one. Consequently, cosmo-atmospheric Condensate would be ruined
immediately. But collider Condensate will not be ruined and it can
grow, if this growth is permitted by physical laws.

Till now there were theoretically described several types of
Condensates: pion condensate, stranglet, magnetized vacuum, magnetic
vacuum domain, magnetic holes and so on. In fact, the mentioned types
of condensates are different approximations to one and the same
Condensate, which can be created in Nature or in a physical
experiment. These approximations were grounded on different types of
forces. I tried to investigate Condensate, which is connected
presumably by magnetic forces. Now I can see that my results coincide
quite good with the results, received in the investigations of
Condensate, connected by pions (pion condensate, Migdal), gluon
condensate (Savvidy?), sea quark-antiquark pairs, strange quarks..

The main conclusion: Condensate can be created at particle collision
with energy of about 1-TeV per particle.

It is clear, at least for me, that microscopic droplet of Condensate
will be created very soon at LHC. This can lead to further rapid
explosion of Earth and extermination of our Civilization. Particle
physicists will not stop their experiments, because the stop of these
high-energy experiments will mean that they do recognize that these
collisions are really dangerous for the whole Earth. The recognition
of the danger will mean that most of particle physicists are already
criminals or global terrorists, - they did not stop their dangerous
experiments despite court cases and disputes, lasting nearly ten
years.

So, dear citizens, be ready to near death. You all will be murdered
soon by criminals, who name themselves as “scientists”.

http://darkenergy.narod.ru/


Dear citizens, in a week or slightly more you all will be killed by
physicists, promoting and performing particle collisions at LHC. What
can we do to save ourselves? Politicians and prosecutors did not help
us, despite of our call to them. They believe CERN physicists. So we
have no any other options, except physical extermination of potential
killers. Citizens of Geneva do not seat silently, block entrances to
CERN building, kill resisting murders, who name themselves
“scientists”, because they are global terrorists. Dear Arab
terrorists, drop a nuclear bomb at LHC. Citizens of Ukraine and
Russia, explode oil and gas pipe-lines, leading to Europe.

It is pity, but most of you do not believe us. Consequently, be ready
to be murdered by criminal physicists. It will happen in a week or
several days latter.

--------
The new start of Planetary Guillotine is planned on the next Thursday,
February the 25-th. Physicists will start from 450-GeV energies per
proton. In a couple of weeks they will welcome journalists and will
show us the 7-TeV collisions (3.5 TeV per proton). Now they remind me
those young people, who tried to squeeze out from their car all what
it can give. Kids withdrew their exiting race on a camera, not
realizing yet that they had made the film about their last minutes of
life. Nothing had left from the car and kids, except the video-film.
Somebody had taken it and uploaded it into Internet. I’m curious,
where will journalists try to upload the film about the Last Minutes
of Earth’s Life?

http://www.theregister.co.uk/2010/02...2010_forecast/

James Dow Allen wrote:
On Feb 20, 6:12 pm, "OG" wrote:
http://en.wikipedia.org/wiki/Timeline_of_evolution
According to one plausible theory, the planet Earth and the planet Theia
collide,
sending countless moonlets into orbit around the young Earth.
These moonlets eventually coalesce to form the Moon.
The gravitational pull of the new Moon stabilises the Earth's fluctuating
axis of rotation and sets up the conditions in which life formed.

As I understand it, 'solo' planets such as Mars and Venus are more subject
to a varying axis of inclination than the Earth Moon system From what I
gather, the varying direction of the axis comes about because of the need to
preserve angular momentum, and the long term changes in the planets
movements leads to this wobble. However, for the Earth, the presence of the
Moon gives an alternative method of distributing angular momentum within the
system, so the Earth's axis is stabilised in that way.

Thank you. So inclination-variartion is a different motion than the
25,000-year precession cycle, right? Any on-line tables giving the
numbers for different planets?

The technical name for the tilt is Obliquity - you could try googling
that. The wikipedia article for Axial Tilt has some figures for the
variation for Mars.

And, although it's outside sci.astro scope, any reaction to the idea
that this stability "sets up the conditions in which life formed"?

I'm not so sure about 'allowing life to form', but what it does for the
Earth is mean that the pattern of day-night and seasons is relatively
stable over periods of tens of thousands of years

Were the tilt to increase significantly, the extent of the Earth's
surface that would be arctic would also increase, which would probably
be a challenge to the viability of such a diverse range of life on
Earth. It is believed that the (relatively small) change in obliquity is
associated with the Earth's periodic Ice Ages, so increasing the amount
of change would be expected to give much adverse effects.

"James Dow Allen" wrote in message
...

In this article
http://en.wikipedia.org/wiki/Timeline_of_evolution
one reads
According to one plausible theory, the planet Earth and the planet Theia
collide,
sending countless moonlets into orbit around the young Earth.
These moonlets eventually coalesce to form the Moon.
The gravitational pull of the new Moon stabilises the Earth's fluctuating
axis of rotation and sets up the conditions in which life formed.

I am *not* looking for a discussion of the Theia collision (that's
easily found online). What I'm curious about is the "fluctuating
axis of rotation" (is this precession?). Did the Moon just "heal"
fluctuations caused by Theia, or did the Earth-Moon system
have some special stability? (My first thought was to find an on-line
table of precessions for the other planets, but my Googling skills
are too poor even for that.)

I am also curious *why* the Moon "stabilised" this axis,

As another poster said, it has to do with conservation of angular momentum.

What I suspect is really happening is that if the earth's axis tilts such
that it is no longer perpendicular to the plane of the moon's rotation, the
tidal effects of the moon on the earth are such that they tend to re-orient
the axis of rotation of the earth to be perpendicular to the plane of the
moon's rotation. This is a negative feedback loop which tends to keep the
earth's axial tilt in a small range.



and *why* this "set up the conditions in which life formed", but
I can't get past the first question: what are these fluctuations?
Did they arise from the Theia collision?

James Dow Allen

Read the Great Job of Luis Sancho!
I would give him the Best Prize from the saved humanity, if the
humanity will have a brain to listen him and will have the time to
stop the CERN!

http://miniblackhole.achtphasen.net/.../madolf_ct.pdf
Luis Sancho. A Quark Cannon in the Fractal Universe.

p.149
Mr. Wilczek, a Nobel prize, called the liquid with a more ominous
name, ice-9 and said it could blow the Earth.
…Instead of opening an investigation of the matter, CERN asked all
employees NOT to talk about Ice-9 and state there was no risk…

p. 153 Sheldon Glasgow, a Nobel Prize…
“…A new-born strangelet could engulf atomic nuclei, growing
relentlessly, and ultimately consuming the entire Earth..”

But after, Wilczek and Glasgow were hired by CERN to defend their
Global Guillotine.

Be ready to be killed, or take action to stop the global suicide.
http://darkenergy.narod.ru/

"Peter Webb" wrote in message
u...

"James Dow Allen" wrote in message
...

In this article
http://en.wikipedia.org/wiki/Timeline_of_evolution
one reads
According to one plausible theory, the planet Earth and the planet Theia
collide,
sending countless moonlets into orbit around the young Earth.
These moonlets eventually coalesce to form the Moon.
The gravitational pull of the new Moon stabilises the Earth's
fluctuating
axis of rotation and sets up the conditions in which life formed.

I am *not* looking for a discussion of the Theia collision (that's
easily found online). What I'm curious about is the "fluctuating
axis of rotation" (is this precession?). Did the Moon just "heal"
fluctuations caused by Theia, or did the Earth-Moon system
have some special stability? (My first thought was to find an on-line
table of precessions for the other planets, but my Googling skills
are too poor even for that.)

I am also curious *why* the Moon "stabilised" this axis,

As another poster said, it has to do with conservation of angular
momentum.

What I suspect is really happening is that if the earth's axis tilts such
that it is no longer perpendicular to the plane of the moon's rotation,
the tidal effects of the moon on the earth are such that they tend to
re-orient the axis of rotation of the earth to be perpendicular to the
plane of the moon's rotation. This is a negative feedback loop which tends
to keep the earth's axial tilt in a small range.


I don't think it's that simple - the implication from the above is that the
Moon's orbit should be aligned with the Earth's equator; but it isn't.
Rather it's about 5 degrees off the inclination of the ecliptic (hence 18 to
28 degrees off the equator).

It is interesting that there /is/ a direct relationship between the Earth's
axis and the Moon's orbit, in that there is a periodic nutation (nodding) of
the Earth's axis that has the same period (18.6 years) as the precession of
the Moon's orbit around the Earth.

I don't know that it's possible to give a simple explanation as to how the
Moon's orbit stabilises the Earth's axis (other than a hand waving argument
about it being aperiodic with the perturbations of the other planets), and I
have seen somewhere that after another 1.5 Billion years, the orbit of the
moon will have changed sufficiently that it will /increase/ the variation of
the Earth's tilt instead, so rather than stabilising the axis it will
destabilise it.

On Feb 21, 6:10*am, Magnetic wrote:
Read the Great Job of Luis Sancho!
I would give him the Best Prize from the saved humanity, if the
humanity will have a brain to listen him and will have the time to
stop the CERN!

http://miniblackhole.achtphasen.net/.../madolf_ct.pdf
Luis Sancho. A Quark Cannon in the Fractal Universe.

p.149
Mr. Wilczek, a Nobel prize, called the liquid with a more ominous
name, ice-9 and said it could blow the Earth.
…Instead of opening an investigation of the matter, CERN asked all
employees NOT to talk about Ice-9 and state there was no risk…

p. 153 Sheldon Glasgow, a Nobel Prize…
“…A new-born strangelet could engulf atomic nuclei, growing
relentlessly, and ultimately consuming the entire Earth..”

But after, Wilczek and Glasgow were hired by CERN to defend their
Global Guillotine.

Be ready to be killed, or take action to stop the global suicide.http://darkenergy.narod.ru/

Not a chance in 10 billion of this machine creating a BH and
destroying the earth. We took a bigger chance when we exploded an H-
Bomb in the ocean. We will have a big worry when Muslins have the bomb.
(Iran) I predicted the LHC would melt down trying to get up to full
power. It did and will keep om doing it. Reason you do not splice
wires. TreBert

On Feb 21, 5:37*am, bert wrote:
On Feb 21, 6:10*am, Magnetic wrote:



Read the Great Job of Luis Sancho!
I would give him the Best Prize from the saved humanity, if the
humanity will have a brain to listen him and will have the time to
stop the CERN!

http://miniblackhole.achtphasen.net/.../madolf_ct.pdf
Luis Sancho. A Quark Cannon in the Fractal Universe.

p.149
Mr. Wilczek, a Nobel prize, called the liquid with a more ominous
name, ice-9 and said it could blow the Earth.
…Instead of opening an investigation of the matter, CERN asked all
employees NOT to talk about Ice-9 and state there was no risk…

p. 153 Sheldon Glasgow, a Nobel Prize…
“…A new-born strangelet could engulf atomic nuclei, growing
relentlessly, and ultimately consuming the entire Earth..”

But after, Wilczek and Glasgow were hired by CERN to defend their
Global Guillotine.

Be ready to be killed, or take action to stop the global suicide.http://darkenergy.narod.ru/

Not a chance in 10 billion of this machine creating a BH and
destroying the earth. *We took a bigger chance when we exploded an H-
Bomb in the ocean. We will have a big worry when Muslins have the bomb.
(Iran) *I predicted the LHC would melt down trying to get up to full
power. It did and will keep om doing it. Reason you do not splice
wires. *TreBert

http://miniblackhole.achtphasen.net/.../madolf_ct.pdf