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Electricity From Earth Rotation part 3

Electricity From Earth Rotation part 3 - Physics Forum

Electricity From Earth Rotation part 3 - Physics Forum. Discuss and ask physics questions, kinematics and other physics problems.


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Old 04-04-2004, 01:30 AM
stone2
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Default Electricity From Earth Rotation part 3



I think I may have a workable idea this time.

Free electricity from the Earth rotating through its own magnetic field
using the homopolar generator effect.
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 truly unique invention made December 26, 1831 consisted of the
discovery
that the magnet and disc could be cemented together, rotated jointly, and
the same voltage could be obtained by sliding contacts touching the centre
and edge of the conducting disc as was obtained when the magnet was fixed
and the disc rotated alone.
[By cementing a copper disc on top of a cylinder magnet, and rotating the
magnet and disc together, Faraday created an electrical potential. After
pondering this phenomenon for many years, he concluded that when a magnet is
rotated, its magnetic field remains stationary. Thus, he reasoned, the metal
of the magnet moves through its own field, and the relative motion is
translated into electrical potential.
Faraday's experiments led him to the revolutionary conclusion that a
magnetic field is a property of space itself, not something attached to the
magnet, which merely serves to induce or evoke the field.]
The Earth is doing essentially the same thing; it rotates through its own
magnetic field. The rotating Earth is therefore a big homopolar generator.
However, any circuit contacts used to pick up voltage potential difference
on the Earth, would be rotating along with the Earth. So sliding contacts or
brushes would not be needed, and also, a rotating conductive disk would not
be needed. All that would be needed is conductive cables. Emf is generated
in a conductor which is perpendicular to the flux lines and velocity. Near
the magnetic poles of the Earth the flux lines are pointed upward, and the
rotation of the Earth would carry the conductive cables in a west to East
motion as the Earth rotates through its own magnetic field. So, just like
there is a charge separation in faraday’s rotating disc from the center of
the disc to its rim, on the rotating Earth there would be a charge
separation from the Earth’s north magnetic pole to the end of any conductive
cable that is positioned running southward.
There is a fundamental problem with picking up potential difference voltage
on the Earth:
Sliding contacts were needed, brushes, with the rotating Faraday generator
because the wiring does not rotate with it.
When the wiring *does* rotate, you get an equal and opposite
EMF induced in it. Result - no current.
In the case with the rotating Earth, this would be true if the potential
difference is picked up between both ends of the cable, and the result would
be no current. You can overcome this problem by picking up an electrical
potential between only one end of the cable (the end away from the magnetic
pole), and a ground wire positioned near this end. In this case there would
be no opposite EMF and you would get a direct current.
So here is the wiring set-up that I think would work to get electricity from
the Earth’s rotation through its own magnetic field:
Run cables from the magnetic north pole going like spokes in a wheel with
one end of the spokes at the pole. The cables are run over ground that is an
insulator or poor conductor. There would be a separation of charge in the
conductive cables and not in the ground under the cables. There should be a
potential difference voltage between the other ends of the cables, that are
southward, and ground wires near those ends. A constant current should be
produced between the cable ends and the ground wires as the Earth rotates
through its own magnetic field. Direct current motors could be set up and
attached to the ground wires and the cable ends. These motors turn
Alternating Current generators, and the AC that is produced is stepped up to
high voltage by transformers and then fed into high voltage power lines for
distribution to the cities.
These are the two important aspects that would make this work:
[This should work without sliding contacts because you are taking voltage
from only one end of the cable and are not taking it from both ends, so
there should be no back EMF voltage to interfere with it. There would be
separtaion of charge in the cables, and no separation of charge in the
ground, so you should have a potential difference voltage between the cable
ends and the ground wires.]
This whole thing could also be set up at the south magnetic pole.
There are also other considerations. Because this is done in a cold climate,
near the poles, there would be less resistence in the cables. Also, large
diameter cables could be used to decrease resistence.
Experiments could be done on different lengths of cable to find out how long
it needs to be to get any useful current and how long the cable should be to
get the maximum current. Also, if large voltage is acquired then the direct
current motors could be the type that run on large voltage. If only small
voltage and large amperage is acquired, then the direct current motors could
be of a type that run on large amperage and low voltage – depending on how
the motor coils are wrapped in the motor.

Any comments on this:








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