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Know your gravity from a hole in the ground



 
 
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  #1  
Old November 9th 08, 05:59 PM posted to sci.physics,sci.astro.amateur
Dave Typinski[_2_]
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Posts: 93
Default Know your gravity from a hole in the ground

oriel36 wrote:

On Nov 9, 7:19*am, Dave Typinski wrote:

The latest installment of Typinski procrastinates against anything
productive found me investigating gravitational acceleration within
the Earth.

It doesn't go quite as one might expect... not even in the right
direction. *Acceleration goes up and down through the crust, then
steadily increases through the bottom half of the mantle the closer
you get to that big ol' ball of nickel-iron down there.

http://home.alltel.net/trapezium/Essays/EarthGrav.htm

--
Dave


Good,you would not dare post this topic on sci.astro.amateur so I
guess you have learned your lesson pretty quickly .


Since you insist...
--
Dave
  #2  
Old November 9th 08, 07:00 PM posted to sci.physics,sci.astro.amateur
Quadibloc
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Posts: 7,018
Default Know your gravity from a hole in the ground

On Nov 9, 9:59 am, Dave Typinski wrote:

Since you insist...


That's quite an interesting web page. It's conclusion is: since the
Earth's core is denser than the mantle and crust, getting closer to
that outweighs no longer experiencing the effects of the outer shells
of the Earth, so the gravitational force one feels actually increases
as one goes downwards.

John Savard
  #3  
Old November 9th 08, 08:37 PM posted to sci.astro.amateur
Uncle Al
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Posts: 697
Default Know your gravity from a hole in the ground

Quadibloc wrote:

On Nov 9, 9:59 am, Dave Typinski wrote:

Since you insist...


That's quite an interesting web page. It's conclusion is: since the
Earth's core is denser than the mantle and crust, getting closer to
that outweighs no longer experiencing the effects of the outer shells
of the Earth, so the gravitational force one feels actually increases
as one goes downwards.

John Savard


http://www.splung.com/kinematics/ima...n%20of%20g.png
gee increases with depth to 50% radius

--
Uncle Al
http://www.mazepath.com/uncleal/
(Toxic URL! Unsafe for children and most mammals)
http://www.mazepath.com/uncleal/lajos.htm#a2
  #4  
Old November 9th 08, 08:52 PM posted to sci.physics,sci.astro.amateur
Chris L Peterson
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Posts: 10,007
Default Know your gravity from a hole in the ground

On Sun, 9 Nov 2008 10:00:39 -0800 (PST), Quadibloc
wrote:

That's quite an interesting web page. It's conclusion is: since the
Earth's core is denser than the mantle and crust, getting closer to
that outweighs no longer experiencing the effects of the outer shells
of the Earth, so the gravitational force one feels actually increases
as one goes downwards.


Which seems intuitively obvious without the detailed analysis. But that
analysis is very interesting, as is the actual plot of acceleration
versus depth.
_________________________________________________

Chris L Peterson
Cloudbait Observatory
http://www.cloudbait.com
  #5  
Old November 9th 08, 11:07 PM posted to sci.physics,sci.astro.amateur
oriel36[_2_]
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Posts: 8,478
Default Know your gravity from a hole in the ground

On Nov 9, 5:59*pm, Dave Typinski wrote:
oriel36 wrote:

On Nov 9, 7:19*am, Dave Typinski wrote:


The latest installment of Typinski procrastinates against anything
productive found me investigating gravitational acceleration within
the Earth.


It doesn't go quite as one might expect... not even in the right
direction. *Acceleration goes up and down through the crust, then
steadily increases through the bottom half of the mantle the closer
you get to that big ol' ball of nickel-iron down there.


http://home.alltel.net/trapezium/Essays/EarthGrav.htm


--
Dave


Good,you would not dare post this topic on sci.astro.amateur so *I
guess you have learned your lesson pretty quickly .


Since you insist...
--
Dave


Good,just as I thought and predictable.

Planetary shape is reliant on rotational dynamics and the specifics of
that dynamic,especially the rotation of the viscous composition below
the fractured surface crust.

Stellar dynamicists have been working with the correlation between
maximum Equatorial speed,spherical deviation between Equatorial and
polar diameters -

http://www.spaceref.com/news/viewpr.html?pid=5604

The missing component is differential rotation as the latitudinal
shear bands differ between Equatorial and polar regions depending on
maximum Equatorial speed and reducing to zero speed at the poles
therefore there is a triumvirate of correlations for any rotating
celestial bodies with a viscous composition whether it it stellar
plasma or the internal viscous composition of the Earth,these intimate
correlations are maximum Equatorial speed,differential rotation and
spherical deviation.

The 40 Km spherical deviation of the Earth is due to differential
rotation between Equatorial and polar regions with the composition and
viscosity unknown but most certainly,this dynamic replaces the
stationary Earth concept of thermal driven 'convection cells' which
require no reference to planetary shape or rotational dynamics.

The spherical deviation alone is enough to pursue rotational dynamics
in the viscous interior of the Earth however the generation of crust
off the entire length of the mid-Atlantic ridge along with the
rotational orientation of that second largest geological feature
indicates that the rotational mechanism which generates spherical
deviation is also responsible for crustal evolution and subsequently
into areas such as surface features and short term events such as
Earthquakes -

http://geomaps.wr.usgs.gov/parks/plt...ticRidgeSM.jpg

I have been working alone with differential rotation for so many years
now that I would not care to hear how crustal development off the
Mid Atlantic ridge works with 'convection cells' ,still,amazing to
see the stellar guys working with a rotating composition and miss out
on the correlation between a rotating viscous composition of stellar
objects with the spherical deviation of the Earth and its viscous
interior.In short,to make the Earth and its viscous interior exempt
from differential rotation is short of impossible.




  #6  
Old November 10th 08, 01:05 AM posted to sci.physics,sci.astro.amateur
Dave Typinski[_2_]
external usenet poster
 
Posts: 93
Default Know your gravity from a hole in the ground

oriel36 wrote:

On Nov 9, 5:59*pm, Dave Typinski wrote:
oriel36 wrote:

On Nov 9, 7:19*am, Dave Typinski wrote:


The latest installment of Typinski procrastinates against anything
productive found me investigating gravitational acceleration within
the Earth.


It doesn't go quite as one might expect... not even in the right
direction. *Acceleration goes up and down through the crust, then
steadily increases through the bottom half of the mantle the closer
you get to that big ol' ball of nickel-iron down there.


http://home.alltel.net/trapezium/Essays/EarthGrav.htm


--
Dave


Good,you would not dare post this topic on sci.astro.amateur so *I
guess you have learned your lesson pretty quickly .


Since you insist...
--
Dave


Good,just as I thought and predictable.

Planetary shape is reliant on rotational dynamics and the specifics of
that dynamic,especially the rotation of the viscous composition below
the fractured surface crust.

Stellar dynamicists have been working with the correlation between
maximum Equatorial speed,spherical deviation between Equatorial and
polar diameters -

http://www.spaceref.com/news/viewpr.html?pid=5604

The missing component is differential rotation as the latitudinal
shear bands differ between Equatorial and polar regions depending on
maximum Equatorial speed and reducing to zero speed at the poles
therefore there is a triumvirate of correlations for any rotating
celestial bodies with a viscous composition whether it it stellar
plasma or the internal viscous composition of the Earth,these intimate
correlations are maximum Equatorial speed,differential rotation and
spherical deviation.

The 40 Km spherical deviation of the Earth is due to differential
rotation between Equatorial and polar regions

snip

DIfferential rotation? At what possible magnitude, a few microradians
per century?
--
Dave
  #7  
Old November 10th 08, 01:07 AM posted to sci.physics,sci.astro.amateur
Dave Typinski[_2_]
external usenet poster
 
Posts: 93
Default Know your gravity from a hole in the ground

Chris L Peterson wrote:

On Sun, 9 Nov 2008 10:00:39 -0800 (PST), Quadibloc
wrote:

That's quite an interesting web page. It's conclusion is: since the
Earth's core is denser than the mantle and crust, getting closer to
that outweighs no longer experiencing the effects of the outer shells
of the Earth, so the gravitational force one feels actually increases
as one goes downwards.


Which seems intuitively obvious without the detailed analysis. But that
analysis is very interesting, as is the actual plot of acceleration
versus depth.


Thanks, guys!
--
Dave
  #8  
Old November 10th 08, 06:32 AM posted to sci.physics,sci.astro.amateur
oriel36[_2_]
external usenet poster
 
Posts: 8,478
Default Know your gravity from a hole in the ground

On Nov 10, 1:05*am, Dave Typinski wrote:
oriel36 wrote:

On Nov 9, 5:59*pm, Dave Typinski wrote:
oriel36 wrote:


On Nov 9, 7:19*am, Dave Typinski wrote:


The latest installment of Typinski procrastinates against anything
productive found me investigating gravitational acceleration within
the Earth.


It doesn't go quite as one might expect... not even in the right
direction. *Acceleration goes up and down through the crust, then
steadily increases through the bottom half of the mantle the closer
you get to that big ol' ball of nickel-iron down there.


http://home.alltel.net/trapezium/Essays/EarthGrav.htm


--
Dave


Good,you would not dare post this topic on sci.astro.amateur so *I
guess you have learned your lesson pretty quickly .


Since you insist...
--
Dave


Good,just as I thought and predictable.


Planetary shape is reliant on rotational dynamics and the specifics of
that dynamic,especially the rotation of the viscous composition below
the fractured surface crust.


Stellar dynamicists have been working with the correlation between
maximum Equatorial speed,spherical deviation between Equatorial and
polar diameters -


http://www.spaceref.com/news/viewpr.html?pid=5604


The missing component is differential rotation as the latitudinal
shear bands differ between Equatorial and polar regions depending on
maximum Equatorial speed and reducing to zero speed at the poles
therefore there is a triumvirate of correlations for any rotating
celestial bodies with a viscous composition whether it it stellar
plasma or the internal viscous composition of the Earth,these intimate
correlations are maximum Equatorial speed,differential rotation and
spherical deviation.


The 40 Km spherical deviation of the Earth is due to differential
rotation between Equatorial and polar regions


snip

DIfferential rotation? *At what possible magnitude, a few microradians
per century?
--
Dave



Differential rotation is a consequence of fluid dynamics and
specifically that pf a rotating celestial object with a viscous
composition.This rotational dynamic replaces stationary Earth and
thermally driven 'convection cells notion ' as the mechanism for
crustal motion by first accounting for the 40Km planetary spherical
deviation first and then uses the same mechanism to drive plate
tectonics.

Now,have you got that much clear - the Earth is round and rotating and
this rotation has geological consequences.If you have any doubts about
the presence of differential rotation in the rotation of the Earth's
viscous interior then may I direct you to flat-Earth theory which you
can add to your astrological premises and conclusions for the
celestial arena.

Again,people who call themselves dynamicists are not doing their jobs
and this particular topic based on the geological consequence of
rotational dynamics is a joy to work with albeit I do so alone.

It is always nice to see a guy arrive with a gung-ho attitude in
sci.astro.amateur and then quickly dissolve into another empirical
clone and adopt a docile personality,
  #9  
Old November 10th 08, 08:10 AM posted to sci.physics,sci.astro.amateur
Dave Typinski[_2_]
external usenet poster
 
Posts: 93
Default Know your gravity from a hole in the ground

oriel36 wrote:

On Nov 10, 1:05*am, Dave Typinski wrote:
oriel36 wrote:

On Nov 9, 5:59*pm, Dave Typinski wrote:
oriel36 wrote:


On Nov 9, 7:19*am, Dave Typinski wrote:


The latest installment of Typinski procrastinates against anything
productive found me investigating gravitational acceleration within
the Earth.


It doesn't go quite as one might expect... not even in the right
direction. *Acceleration goes up and down through the crust, then
steadily increases through the bottom half of the mantle the closer
you get to that big ol' ball of nickel-iron down there.


http://home.alltel.net/trapezium/Essays/EarthGrav.htm


--
Dave


Good,you would not dare post this topic on sci.astro.amateur so *I
guess you have learned your lesson pretty quickly .


Since you insist...
--
Dave


Good,just as I thought and predictable.


Planetary shape is reliant on rotational dynamics and the specifics of
that dynamic,especially the rotation of the viscous composition below
the fractured surface crust.


Stellar dynamicists have been working with the correlation between
maximum Equatorial speed,spherical deviation between Equatorial and
polar diameters -


http://www.spaceref.com/news/viewpr.html?pid=5604


The missing component is differential rotation as the latitudinal
shear bands differ between Equatorial and polar regions depending on
maximum Equatorial speed and reducing to zero speed at the poles
therefore there is a triumvirate of correlations for any rotating
celestial bodies with a viscous composition whether it it stellar
plasma or the internal viscous composition of the Earth,these intimate
correlations are maximum Equatorial speed,differential rotation and
spherical deviation.


The 40 Km spherical deviation of the Earth is due to differential
rotation between Equatorial and polar regions


snip

DIfferential rotation? *At what possible magnitude, a few microradians
per century?
--
Dave



Differential rotation is a consequence of fluid dynamics and
specifically that pf a rotating celestial object with a viscous
composition.This rotational dynamic replaces stationary Earth and
thermally driven 'convection cells notion ' as the mechanism for
crustal motion by first accounting for the 40Km planetary spherical
deviation first and then uses the same mechanism to drive plate
tectonics.

snip

You claimed that the Earth exhibited differential rotation, which
implied that the crust exhibited this phenomenon, which is clearly not
the case in any reasonable fashion. If instead you mean just the
fluid core, then it beats me. I know squat about the dynamics of the
Earth's core, so your ideas may be as good as anyone else's for all I
know.

It is always nice to see a guy arrive with a gung-ho attitude in
sci.astro.amateur and then quickly dissolve into another empirical
clone and adopt a docile personality,


The trick is to know what one doesn't know. One is gung ho about
things one knows one knows. One defers on things one knows one
doesn't know.
--
Dave
  #10  
Old November 10th 08, 01:14 PM posted to sci.physics,sci.astro.amateur
oriel36
external usenet poster
 
Posts: 1,189
Default Know your gravity from a hole in the ground

On Nov 10, 8:10*am, Dave Typinski wrote:
oriel36 wrote:

On Nov 10, 1:05*am, Dave Typinski wrote:
oriel36 wrote:


On Nov 9, 5:59*pm, Dave Typinski wrote:
oriel36 wrote:


On Nov 9, 7:19*am, Dave Typinski wrote:


The latest installment of Typinski procrastinates against anything
productive found me investigating gravitational acceleration within
the Earth.


It doesn't go quite as one might expect... not even in the right
direction. *Acceleration goes up and down through the crust, then
steadily increases through the bottom half of the mantle the closer
you get to that big ol' ball of nickel-iron down there.


http://home.alltel.net/trapezium/Essays/EarthGrav.htm


--
Dave


Good,you would not dare post this topic on sci.astro.amateur so *I
guess you have learned your lesson pretty quickly .


Since you insist...
--
Dave


Good,just as I thought and predictable.


Planetary shape is reliant on rotational dynamics and the specifics of
that dynamic,especially the rotation of the viscous composition below
the fractured surface crust.


Stellar dynamicists have been working with the correlation between
maximum Equatorial speed,spherical deviation between Equatorial and
polar diameters -


http://www.spaceref.com/news/viewpr.html?pid=5604


The missing component is differential rotation as the latitudinal
shear bands differ between Equatorial and polar regions depending on
maximum Equatorial speed and reducing to zero speed at the poles
therefore there is a triumvirate of correlations for any rotating
celestial bodies with a viscous composition whether it it stellar
plasma or the internal viscous composition of the Earth,these intimate
correlations are maximum Equatorial speed,differential rotation and
spherical deviation.


The 40 Km spherical deviation of the Earth is due to differential
rotation between Equatorial and polar regions


snip


DIfferential rotation? *At what possible magnitude, a few microradians
per century?
--
Dave


Differential rotation is a consequence of fluid dynamics and
specifically that pf a rotating celestial object with a viscous
composition.This *rotational dynamic replaces stationary Earth and
thermally driven 'convection cells notion ' as the mechanism for
crustal motion by first accounting for the 40Km planetary spherical
deviation first and then uses the same mechanism to drive plate
tectonics.


snip

You claimed that the Earth exhibited differential rotation, which
implied that the crust exhibited this phenomenon, which is clearly not
the case in any reasonable fashion.


I have a very good reason to believe that your reasoning is typical
and that is why I alone work with differential rotation as a
consequence of fluid dynamics of a rotating celestial body with a
viscous interior .The implications are really only for those who can
handle rotational dynamics and unfortunately I have yet to meet one
person who can apply the lessons learned from observed stellar
rotational dynamics and apply the generalized principles which link
maximum Equatorial speed with spherical deviation via differential
rotation.



*If instead you mean just the
fluid core, then it beats me. *I know squat about the dynamics of the
Earth's core, so your ideas may be as good as anyone else's for all I
know.





It is always nice to see a guy arrive with a gung-ho attitude in
sci.astro.amateur and then quickly dissolve into another empirical
clone and adopt a docile personality,


The trick is to know what one doesn't know. *One is gung ho about
things one knows one knows. *One defers on things one knows one
doesn't know.
--
Dave


Fair reply however the idea is not to conjure up whatever story is
needed to reach whatever conclusion is desired,the object is to enjoy
a specific arrangement of reasoning that fits observations,case in
point,stellar roitational dynamics and differential rotation produces
different degrees of spherical deviation depending on maximum
equatorial speed,the generalised rules can then be applied to the
Earth's viscous interior and from there to geological consequences.

 




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