Free Electricity From Rotation of the Earth

S

stone2

Guest
Possibility of getting electrical energy from the rotation of the Earth
through its own magnetic field.

The homopolar generator has a conducting disc rotating along with an axially
mounted cylinder magnet; the disc is cemented near the pole of the magnet.
Rotating through the magnetic field, a potential difference is between the
center of the disc and its rim. Brushes pick up voltage here.
The Earth is doing essentially the same thing; it rotates through its own
magnetic field.
The Earth’s oceans near the poles are conductors, moving through the Earth's
magnetic field, containing positive and
negative salt water ions. There should be a separation of charge in the
ocean, near the poles. There could be a potential difference between the
ocean water near the poles and any grounded wire on land at the same
lattitude. Cables could be used connecting these two places and you could
get a constant supply of direct current, provided by the Earth’s rotation
through its own magnetic field. The ions in the sea water near the end of
the cable should be constantly replenished providing a constant voltage.
Near the poles, the magnetic field should be stronger as it is with a
magnet. Also, the cable near the poles would be cold, causing the electrical
resistance in the cable to decrease. [Because the cable is parallel to the
lattitude, there should be no back emf to cancel out the effect.] Near the
poles the field lines are coming up out of the Earth.
[Emf is generated perpendicular to the motion through the field and
perpendicular to the field lines. The separation of charge moves in this
direction.]

In this case it would not be a closed circuit. It would be like picking up
volage from the different terminals of a battery.
Just like the charge is separated in the rotating disk at the pole of the
magnet, the salt water aound the polar region, rotating through polar field
lines (going upward) would cause a separation in positive and negative ions
of sodium and chlorine; the separation would be close to the ice cap and the
other charge pushed away from it southward.
This should cause an electrical potential difference in these two regions of
water.
Running a cable from the seawater near the pole, to a ground wire on land at
the same lattitude, should produce electrical current, if the potential in
that water and the potential in the ground wire is different enough.
Emf is produced perpendicular to the field lines and the motion through the
field. The only emf produced in a cable, by it moving through the field,
that is running parallel to lattitude would be from one side of the cable to
the other side; IT WOULD NOT BE ALONG THE LENGTH OF THE CABLE.
So, there should be no back current to interfere with the current between
the sea water and the ground line.
The electrical potential in the sea water would continually be re supplied
by more ions as the sea water rotated through the magnetic field of the
Earth.
Magnetic field is probably stronger near the poles and the cold temperature
would reduce resistence in the cable.
I think it should be investigated to see if there is a potential difference
between sea water near the north pole and a ground wire on land at the same
lattitude.
What I described to you is picking up voltage between two points, like it is
with a car battery. This is not a coil, like you have in an induction
generator.
That is why I am using the homo-polar generator as the model, to try to get
electricity from the motion of the Earth through its own magnetic field.
See telluric currents.
There are natural earth currents called telluric currents, and these might
also be caused by the Earth rotating through its own field. - this is also
another line of investigation, to find a source of electricity from the
Earth's rotation.

Any direct current obtained from the Earth's rotation could be used to turn
a direct current motor attached to an alternating current generator, to
produce AC current. The AC can be fed into a city's power lines.











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stone2 wrote:

Possibility of getting electrical energy from the rotation of the Earth
through its own magnetic field.

The homopolar generator has a conducting disc rotating along with an
axially mounted cylinder magnet; the disc is cemented near the pole of the
magnet. Rotating through the magnetic field, a potential difference is
between the center of the disc and its rim. Brushes pick up voltage here.
The Earth is doing essentially the same thing; it rotates through its own
magnetic field.
Surely the earth's magnetic field rotates *with* the earth so this idea does
not work.

Ian
 
"Ian Bell" <itb@yahoo.com> Typed in message news:c2et0d$1rs06g$2@ID-225948.news.uni-berlin.de...
stone2 wrote:

Possibility of getting electrical energy from the rotation of the Earth
through its own magnetic field.

The homopolar generator has a conducting disc rotating along with an
axially mounted cylinder magnet; the disc is cemented near the pole of the
magnet. Rotating through the magnetic field, a potential difference is
between the center of the disc and its rim. Brushes pick up voltage here.
The Earth is doing essentially the same thing; it rotates through its own
magnetic field.

Surely the earth's magnetic field rotates *with* the earth so this idea does
not work.

Ian
I'm not so sure this is the truth because I read somewhere
the core of the Earth rotates once in about 400 years.
How would those brilliant people know that unless
there is some kind of difference between the
rotation of the Earth and its magnetic field ?
It is interesting to note the fluid bearing
surrounding the core means the core does not
necessarily rotate at the same angular velocity
as the Earth.
 
gmv wrote:

"Ian Bell" <itb@yahoo.com> Typed in message
news:c2et0d$1rs06g$2@ID-225948.news.uni-berlin.de...
stone2 wrote:

Possibility of getting electrical energy from the rotation of the Earth
through its own magnetic field.

The homopolar generator has a conducting disc rotating along with an
axially mounted cylinder magnet; the disc is cemented near the pole of
the magnet. Rotating through the magnetic field, a potential difference
is between the center of the disc and its rim. Brushes pick up voltage
here. The Earth is doing essentially the same thing; it rotates through
its own magnetic field.

Surely the earth's magnetic field rotates *with* the earth so this idea
does not work.

Ian

I'm not so sure this is the truth because I read somewhere
the core of the Earth rotates once in about 400 years.
How would those brilliant people know that unless
there is some kind of difference between the
rotation of the Earth and its magnetic field ?
It is interesting to note the fluid bearing
surrounding the core means the core does not
necessarily rotate at the same angular velocity
as the Earth.
Well, it is not clear there is a connection between the earth's magnetic
field and the core. For starters, the core is well above the curie point
so all magnetic properties will be lost.

Ian
 
"gmv" <NoEmail@ThisWay.123> wrote in message
news:FAE2c.3$Fw.70@news-west.eli.net...

I'm not so sure this is the truth because I read somewhere
the core of the Earth rotates once in about 400 years.
This 1997 article suggests the core rotates between 1 and 3% faster than the
mantle....

http://www.jhu.edu/news_info/news/home97/jan97/core.html
 
"Ian Bell" <itb@yahoo.com> wrote in message
news:c2et0d$1rs06g$2@ID-225948.news.uni-berlin.de...
stone2 wrote:

Possibility of getting electrical energy from the rotation of the Earth
through its own magnetic field.

The homopolar generator has a conducting disc rotating along with an
axially mounted cylinder magnet; the disc is cemented near the pole of
the
magnet. Rotating through the magnetic field, a potential difference is
between the center of the disc and its rim. Brushes pick up voltage
here.
The Earth is doing essentially the same thing; it rotates through its
own
magnetic field.

Surely the earth's magnetic field rotates *with* the earth so this idea
does
not work.

It took me a while to find a paper on the web that actually states this but
this one on

"STABILIZATION OF ELECTRODYNAMIC SPACE TETHERS"

at
http://www.tethers.com/papers/ED_Stabilization.pdf

says

"In reality, however, the Earth's magnetic field rotates along with the
Earth."
 
Don Klipstein wrote:

In article <c2fn6n$1t80q0$2@ID-225948.news.uni-berlin.de>, Ian Bell wrote:

Well, it is not clear there is a connection between the earth's magnetic
field and the core. For starters, the core is well above the curie point
so all magnetic properties will be lost.

If I remember correctly, the curie point of iron results from iron
changing from the face-centered-cubic crystal structure to the less-dense
body-centered-cubic crystal structure. The temperature at which this
change occurs will vary directly with pressure. I suspect the pressure in
the Earth's core could be enough to make the solid part of the core the
denser face-centered-cubic.

- Don Klipstein (don@misty.com)
I think you may not remember as well as you hoped. The long range order
which creates magnetic domains in ferromagnetic materials arises from a
quantum mechanical interaction at the atomic level. This interaction is
remarkable in that it locks the magnetic moments of neighboring atoms into
a rigid parallel order over a large number of atoms in spite of the thermal
agitation which tends to randomise any atomic-level order. For a given
ferromagnetic material the long range order abruptly disappears at a
certain temperature which is called the Curie temperature for the material.
The Curie temperature of iron is about 1043 K. This is not pressure
sensitive.

For some info on the development of current theories about how the earth's
magnetic field is created see:
http://www.nap.edu/readingroom/books/biomems/welsasser.html

Ian
 
In article <c2fn6n$1t80q0$2@ID-225948.news.uni-berlin.de>, Ian Bell wrote:
Well, it is not clear there is a connection between the earth's magnetic
field and the core. For starters, the core is well above the curie point
so all magnetic properties will be lost.
If I remember correctly, the curie point of iron results from iron
changing from the face-centered-cubic crystal structure to the less-dense
body-centered-cubic crystal structure. The temperature at which this
change occurs will vary directly with pressure. I suspect the pressure in
the Earth's core could be enough to make the solid part of the core the
denser face-centered-cubic.

- Don Klipstein (don@misty.com)
 

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