Pearl, the earth isn't hollow, .. asserts 'common man'. (was

[crossposts greatly reduced]

pearl wrote:

"Common Man" wrote in message
news.com...
On Mon, 28 Jun 2004 12:39:55 +0100, "pearl"
wrote:

wrote in message ...
In soc.culture.british pearl wrote:
..
Planets spin fast enough to exert centrifugal force,

Some of them do. The ones that spin fast enough to experience
appreciable centrifugal force are flattened.

and they aren't flattened discs. Numbskull.

http://luna.tau.ac.il/~tomer/staff/m...er3_index.html

"A body under the influence of gravity will be a sphere, but if the body
is spinning, centrifugal force will cause it to become oblate"[1]
..
[1] Actually, it's a bit more complicated than that, at least on earth
http://news.nationalgeographic.com/n...arthgirth.html

Very good. Now think of your laundry in the washing machine on spin,

It's forced to the sides.

Well done. Leaving the centre clear, RIGHT?

Not quite. The laundry is composed of freely moving objects subject to
an external force (the washer). the Earth is held together by its own
gravity, so the force is toward the center. The center of the Earth is
occupied by the mantle and the core, which are compressed, hot liquids
(magma is from the outer mantle). Even if the center were originally
hollow (no evidence), gravity would cause the Earth to take a spheroid
shape. Even small moons (like the ones around Saturn; the ones around
Mars are believed to be captured asteroids and may be too small for a
significant gravitational effect) take a spheroid shape over time
because of gravity.


--
Pat O'Connell
[note munged EMail address]
Take nothing but pictures, Leave nothing but footprints,
Kill nothing but vandals...

"Common Man" wrote in message
news.com...
On Tue, 29 Jun 2004 07:30:19 -0700, Pat O'Connell
wrote:

[crossposts greatly reduced]
[alt.animals.ethics.vegetarian added so Pearl will see your reply]

pearl wrote:

"Common Man" wrote in message
news.com...
On Mon, 28 Jun 2004 12:39:55 +0100, "pearl"
wrote:

wrote in message ...
In soc.culture.british pearl wrote:
..
Planets spin fast enough to exert centrifugal force,

Some of them do. The ones that spin fast enough to experience
appreciable centrifugal force are flattened.
..
Very good. Now think of your laundry in the washing machine on spin,

It's forced to the sides.

Well done. Leaving the centre clear, RIGHT?

Not quite. The laundry is composed of freely moving objects subject to
an external force (the washer).

'Planet formation

Several researchers have suggested that a spinning sphere might
become hollow naturally. If the earth was initially in a more molten
or plastic state and rotated faster than today, centrifugal forces
could have partially counteracted the gravitational force, causing
the highest-density matter to migrate to the outer zones, thereby
'hollowing out' the planet's interior.

Scientists believe that stars and planets formed from huge
clouds of dust and gas, which condensed into spinning spheres
under the force of gravity. John Flora states that such stars and
planets should have spun ever faster as they contracted, in
accordance with the law of conservation of angular momentum.
In reality, however, larger stars spin faster than smaller ones, and
in our solar system larger planets spin faster than smaller ones.
For instance, the earth rotates in 24 hours, while Jupiter, the
largest planet, with a diameter over 11 times that of earth, spins
about its axis in just under 10 hours. This is not what we would
expect of condensed, solid planets. Flora argues that a high rate
of rotation would cause a spherical body to expand until it
reaches a point of maximum inertial stability, thereby becoming
hollow [13].

Dr Gordeev, a mathematician, argues that if a homogeneous
globe begins to spin, the centrifugal force will cause light elements
to move outwards, leaving behind a core at the centre, where
centrifugal force is zero. Assuming there is an initial crust, when
the light materials reach it, it will become increasingly 'solid',
while the rest of the globe becomes 'hollow'. Gordeev disagrees
with Flora's argument that some kind of polar holes would be
produced during the formation of a hollow sphere [14].
...'
http://ourworld.compuserve.com/homepages/dp5/inner2.htm

Please see above link for;

Part 2: The Hollow Earth Hypothesis
...
4. Feasibility -- I (updated June 2004)
5. Feasibility -- II (updated May 2004)
References

the Earth is held together by its own
gravity, so the force is toward the center.

I came across this;

'Figure 11 shows the gravity-depth function calculated by means of the density
distribution established by B. ULLEN. An interesting feature of this curve is that
gravity slightly increases at the beginning with respect to the value at the surface;
and then attains a maximum value of 10.7ms2 at the core-mantle boundary.
From here on the value decreases almost linearly and becomes zero in the center
of the Earth. '
http://sci.fgt.bme.hu/volgyesi/gravity/ppfold.pdf

Also of interest, from the same page;

'When first applying this procedure B. ULLEN obtained the value 1/Ma2 = 0.57
which is quite improbable since it is greater than the value related to an Earth's
core of homogeneous density distribution, i.e. it would mean that density
decreases with the depth or in other words: the core would have a hollow
structure. ..'
http://sci.fgt.bme.hu/volgyesi/gravity/ppfold.pdf

The center of the Earth is
occupied by the mantle and the core, which are compressed, hot liquids
(magma is from the outer mantle).

That's the generally accepted view.

Even if the center were originally
hollow (no evidence), gravity would cause the Earth to take a spheroid
shape. Even small moons (like the ones around Saturn; the ones around
Mars are believed to be captured asteroids and may be too small for a
significant gravitational effect) take a spheroid shape over time
because of gravity.

"Common Man" wrote in message
news.com...
On Tue, 29 Jun 2004 07:30:19 -0700, Pat O'Connell
wrote:

[crossposts greatly reduced]
[alt.animals.ethics.vegetarian added so Pearl will see your reply]

pearl wrote:

"Common Man" wrote in message
news.com...
On Mon, 28 Jun 2004 12:39:55 +0100, "pearl"
wrote:

wrote in message ...
In soc.culture.british pearl wrote:
..
Planets spin fast enough to exert centrifugal force,

Some of them do. The ones that spin fast enough to experience
appreciable centrifugal force are flattened.
..
Very good. Now think of your laundry in the washing machine on spin,

It's forced to the sides.

Well done. Leaving the centre clear, RIGHT?

Not quite. The laundry is composed of freely moving objects subject to
an external force (the washer).

'Planet formation

Several researchers have suggested that a spinning sphere might
become hollow naturally. If the earth was initially in a more molten
or plastic state and rotated faster than today, centrifugal forces
could have partially counteracted the gravitational force, causing
the highest-density matter to migrate to the outer zones, thereby
'hollowing out' the planet's interior.

Scientists believe that stars and planets formed from huge
clouds of dust and gas, which condensed into spinning spheres
under the force of gravity. John Flora states that such stars and
planets should have spun ever faster as they contracted, in
accordance with the law of conservation of angular momentum.
In reality, however, larger stars spin faster than smaller ones, and
in our solar system larger planets spin faster than smaller ones.
For instance, the earth rotates in 24 hours, while Jupiter, the
largest planet, with a diameter over 11 times that of earth, spins
about its axis in just under 10 hours. This is not what we would
expect of condensed, solid planets. Flora argues that a high rate
of rotation would cause a spherical body to expand until it
reaches a point of maximum inertial stability, thereby becoming
hollow [13].

Dr Gordeev, a mathematician, argues that if a homogeneous
globe begins to spin, the centrifugal force will cause light elements
to move outwards, leaving behind a core at the centre, where
centrifugal force is zero. Assuming there is an initial crust, when
the light materials reach it, it will become increasingly 'solid',
while the rest of the globe becomes 'hollow'. Gordeev disagrees
with Flora's argument that some kind of polar holes would be
produced during the formation of a hollow sphere [14].
...'
http://ourworld.compuserve.com/homepages/dp5/inner2.htm

Please see above link for;

Part 2: The Hollow Earth Hypothesis
...
4. Feasibility -- I (updated June 2004)
5. Feasibility -- II (updated May 2004)
References

the Earth is held together by its own
gravity, so the force is toward the center.

I came across this;

'Figure 11 shows the gravity-depth function calculated by means of the density
distribution established by B. ULLEN. An interesting feature of this curve is that
gravity slightly increases at the beginning with respect to the value at the surface;
and then attains a maximum value of 10.7ms2 at the core-mantle boundary.
From here on the value decreases almost linearly and becomes zero in the center
of the Earth. '
http://sci.fgt.bme.hu/volgyesi/gravity/ppfold.pdf

Also of interest, from the same page;

'When first applying this procedure B. ULLEN obtained the value 1/Ma2 = 0.57
which is quite improbable since it is greater than the value related to an Earth's
core of homogeneous density distribution, i.e. it would mean that density
decreases with the depth or in other words: the core would have a hollow
structure. ..'
http://sci.fgt.bme.hu/volgyesi/gravity/ppfold.pdf

The center of the Earth is
occupied by the mantle and the core, which are compressed, hot liquids
(magma is from the outer mantle).

That's the generally accepted view.

Even if the center were originally
hollow (no evidence), gravity would cause the Earth to take a spheroid
shape. Even small moons (like the ones around Saturn; the ones around
Mars are believed to be captured asteroids and may be too small for a
significant gravitational effect) take a spheroid shape over time
because of gravity.

pearl wrote:

"Common Man" wrote in message
news.com...

On Tue, 29 Jun 2004 07:30:19 -0700, Pat O'Connell
wrote:


[crossposts greatly reduced]

[alt.animals.ethics.vegetarian added so Pearl will see your reply]


pearl wrote:


"Common Man" wrote in message
anetnews.com...

On Mon, 28 Jun 2004 12:39:55 +0100, "pearl"
wrote:


wrote in message ...

In soc.culture.british pearl wrote:

..

Planets spin fast enough to exert centrifugal force,

Some of them do. The ones that spin fast enough to experience
appreciable centrifugal force are flattened.

..

Very good. Now think of your laundry in the washing machine on spin,

It's forced to the sides.

Well done. Leaving the centre clear, RIGHT?

Not quite. The laundry is composed of freely moving objects subject to
an external force (the washer).


'Planet formation

Several researchers have suggested that a spinning sphere might
become hollow naturally. If the earth was initially in a more molten
or plastic state and rotated faster than today, centrifugal forces
could have partially counteracted the gravitational force, causing
the highest-density matter to migrate to the outer zones, thereby
'hollowing out' the planet's interior.

Scientists believe that stars and planets formed from huge
clouds of dust and gas, which condensed into spinning spheres
under the force of gravity. John Flora states that such stars and
planets should have spun ever faster as they contracted, in
accordance with the law of conservation of angular momentum.
In reality, however, larger stars spin faster than smaller ones, and
in our solar system larger planets spin faster than smaller ones.
For instance, the earth rotates in 24 hours, while Jupiter, the
largest planet, with a diameter over 11 times that of earth, spins
about its axis in just under 10 hours. This is not what we would
expect of condensed, solid planets. Flora argues that a high rate
of rotation would cause a spherical body to expand until it
reaches a point of maximum inertial stability, thereby becoming
hollow [13].

Dr Gordeev, a mathematician, argues that if a homogeneous
globe begins to spin, the centrifugal force will cause light elements
to move outwards, leaving behind a core at the centre, where
centrifugal force is zero. Assuming there is an initial crust, when
the light materials reach it, it will become increasingly 'solid',
while the rest of the globe becomes 'hollow'. Gordeev disagrees
with Flora's argument that some kind of polar holes would be
produced during the formation of a hollow sphere [14].
..'
http://ourworld.compuserve.com/homepages/dp5/inner2.htm

This is not a credible source. It's a junk science
BULL**** page published by another moronic true
believer like you.

pearl wrote:

"Common Man" wrote in message
news.com...

On Tue, 29 Jun 2004 07:30:19 -0700, Pat O'Connell
wrote:


[crossposts greatly reduced]

[alt.animals.ethics.vegetarian added so Pearl will see your reply]


pearl wrote:


"Common Man" wrote in message
anetnews.com...

On Mon, 28 Jun 2004 12:39:55 +0100, "pearl"
wrote:


wrote in message ...

In soc.culture.british pearl wrote:

..

Planets spin fast enough to exert centrifugal force,

Some of them do. The ones that spin fast enough to experience
appreciable centrifugal force are flattened.

..

Very good. Now think of your laundry in the washing machine on spin,

It's forced to the sides.

Well done. Leaving the centre clear, RIGHT?

Not quite. The laundry is composed of freely moving objects subject to
an external force (the washer).


'Planet formation

Several researchers have suggested that a spinning sphere might
become hollow naturally. If the earth was initially in a more molten
or plastic state and rotated faster than today, centrifugal forces
could have partially counteracted the gravitational force, causing
the highest-density matter to migrate to the outer zones, thereby
'hollowing out' the planet's interior.

Scientists believe that stars and planets formed from huge
clouds of dust and gas, which condensed into spinning spheres
under the force of gravity. John Flora states that such stars and
planets should have spun ever faster as they contracted, in
accordance with the law of conservation of angular momentum.
In reality, however, larger stars spin faster than smaller ones, and
in our solar system larger planets spin faster than smaller ones.
For instance, the earth rotates in 24 hours, while Jupiter, the
largest planet, with a diameter over 11 times that of earth, spins
about its axis in just under 10 hours. This is not what we would
expect of condensed, solid planets. Flora argues that a high rate
of rotation would cause a spherical body to expand until it
reaches a point of maximum inertial stability, thereby becoming
hollow [13].

Dr Gordeev, a mathematician, argues that if a homogeneous
globe begins to spin, the centrifugal force will cause light elements
to move outwards, leaving behind a core at the centre, where
centrifugal force is zero. Assuming there is an initial crust, when
the light materials reach it, it will become increasingly 'solid',
while the rest of the globe becomes 'hollow'. Gordeev disagrees
with Flora's argument that some kind of polar holes would be
produced during the formation of a hollow sphere [14].
..'
http://ourworld.compuserve.com/homepages/dp5/inner2.htm

This is not a credible source. It's a junk science
BULL**** page published by another moronic true
believer like you.