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Discussion board help and admin topics => Half Baked Ideas => Topic started by: not_a_mib on June 05, 2007, 03:19:37 AM

The one who is not a MIB fires up the oven and halfbakes some fancy cipherin'...
The textbook descriptions of the magnetic field and the forces on charges moving through it usually involve an observer watching two moving charged particles. The first particle produces a magnetic field as seen by the observer, and the other particle "cuts the lines" of the field and feels a resulting (Lorentz) force. If either particle stationary in the observer's frame, no forces are produced. For particles with charges q1 and q2, velocity vectors v1 and v2, and a distance vector r between them, the force can be written in terms of vector dot products. The result will have terms like (v1.v2)r, (r.v1)v2, and (r.v2)v1, all multiplied by a constant containing (q1 q2 r)/r^3 to give an inversesquare falloff with distance.
Dr. Marinov's "Annus Horribilis" paper [1] uses formulae of this form, and points out some momentum conservation issues with the textbook form. Many texts point out that the equations are only valid for currents in closed loops. All of them still require the two moving charges to have a Lorentz "line cutting" force, trying to use one of the particles as the frame of reference kills the force. This seems wrong, it is not properly frameinvariant.
It should be possible to find a direct formula for the electric field seen by an observer from a moving charged particle, directly including electrostatic and motionrelated forces, without needing the idea of the magnetic field. The observer is at the origin, using a tiny test charge to see any electric fields. The moving particle is at some location vector r, is moving at some velocity vector v, and carries charge q. The observer looks for an electric field E caused by the particle motion. The electrostatic part is ignored here.
One might expect the result to contain terms like (r.v)v and (v.v)r, noting (v.v) = v^2. Using the USWAG [2] method, the following force equation is proposed. Constants PI=3.14159..., u=magnetic permeability of medium. '^'=raising to a power, '.'=vector dotproduct.
E = (uq/8PIr^3) [2(r.v)v  v^2r]
This is the fundamental equation of NotAMibbean Magnetocrackpottics. [3] ;)
Plain TeX [4] users can use the form below to render it.
\def\Ev{\vec E}
\def\rv{\vec r}
\def\uv{\vec u}
\def\vv{\vec v}
$$\Ev = {\mu q \over 8 \pi \rv^3} [2(\rv\cdot\vv)\vv  \vv^2\rv]$$
\bye
The first term looks like an odd drageffect [5]. The second term is a motioncaused change in the electrostatic force. For a single particle, the E field would go up as the square of the velocity, unusual for most of electromagnetism. If one considers neutral "current elements" the squared terms neatly cancel, leaving forms that usually match textbook results.
A "current element" can be modeled as a pair of charges +q and q at the same initial location, moving in opposite velocities +v and v. The whole element can the be moved relative to the observer by adding another velocity u, so the positive charges moves at (u+v) and the negative charge at (uv). Using this in the force equation results in the u^2 and v^2 terms cancelling, leaving a uv term that resembles the textbook results. The constants in the equation were chosen to match the usual results for long wires and circular current loops, moving relative to the observer.
This equation would suggest testable outcomes, and appears to allow a longitudinal force between moving particles. Highlycharged wires and magnets might also behave differently from neutral ones, exposing the squared terms [6].
This also seems to clarify the issues about "conduction" versus "convection" electric currents, and what it means to move relative to one. For an observer moving parallel to a pure electron beam, the current depends upon the observer's velocity, and it is not clear what part of the motion generates Bfield lines and what part cuts them. For a current in a neutral wire, one has fixed positive metal ions, and moving electrons. If the observer moves along the wire, the observed current remains the same, since both kinds of charges move by the observer, and only the difference is observed as current. The same generating versus cutting issue remains.
Using the new equation, one treats each type of charge separately, and the force emerges directly. One is stationary with respect to the neutral current when the positive charge and negative charge currents are equal and opposite. For realworld wire currents, the average electron velocity is some fraction of a millimeter per second, so imbalance effects would be small enough to have missed.
Thing not done yet.
1. Finding a neutral current configuration that would manifest longitudinal magnetic forces. This would yield good experiments for testing the equation. Square coils might show such effects near the corners. The ideal case would be something that accumulates such a force around a closed path, allowing one to turn a wire loop into a negative resistor.
2. Reintegrating the new force law back into Maxwell's equations to see if it gives new wavepropagation modes or other changes.
3. Looking at stability of electron orbits in atoms with this force law. This should probably only be attempted by a licensed quantum mechanic.
4. Looking at the highspeed (relativistic) case.
Footnotes
1: http://itis.volta.alessandria.it/episteme/ep6/ep6marin.htm (Not to be confused with "Anus Horribilis", which is an unpleasant medical condition usually caused by eating the deadly bean burritos served at the cafeteria on Thursdays.)
2: UnScientific Wild *ssed Guess and some numerical modeling to match the textbook results for long wires and neutral current loops.
3: This is possibly the greatest advance in electrocrackpottics since the invention of the silly tinfoil hat.
4: http://www.ctan.org/ (for rendering and printing math)
5: You can almost feel the aetherwind blowing.
6: Such conditions might be found inside Testatika pots or those SM ringthings.

"NotAMibbean Magnetocrackpottics" :o
"This should probably only be attempted by a licensed quantum mechanic" ::) You got that right.
"5: You can almost feel the aetherwind blowing" ;D Shucks i thought it was waves in an ocean of space foam. Or was it Space Goo? Maybe it's the mysterious dark energy that's all the craze. The fact is no matter what the terminology is, It is the root element in a plithora of universes. However producing the mechanism to utilize this aether seems to elude mankind. A "perpetium mobile" would be the perfect model and emperical evidence to verify many claims. There would be a wave of dogma within the scientific community. Academics would have to change curriculum.
However a single particle is pale in comparison of a multitude of particles occupying say, every vector of a torus (orbit, event horizon) at extreme angular velocity. Your form is wrong the particle has very little mass and will have very little kinetic energy. If we peer at the universe it is no mystery that mass and kinetic energy seem to go hand in hand.

This forcelaw is just a minor tweak to the textbook forms, and would inherit their limits. The textbook magnetic force law gives the forces seen between metal wires carrying currents, or wires and slowmoving single particles with enough accuracy for engineering work. It does not say anything about the processes causing the forces.
The conventional magnetic field can be put back into this. The cross product identity Ax(BxC) = B(A.C)  C(A.B) may be used. 'x' = vector cross product, A, B, C, arbitrary (x,y,z) vectors. v x (v x r) gives a form similar to that in the previous posting. Splitting a term and remembering to carry the '2' gives two forms.
As before, a particle of charge q is at location r, moving with velocity v.
The conventional magnetic flux density B as seen by the observer is given
by B = (uq/4 PI r^3) v x r.
Form 1: E = v x B + (uq/8 PI r^3) v^2 r
Form 2: E = (v x B) / 2 + (uq/8 PI r^3) (r.v) v
The second form may be useful in trying to find nonsideways magnetic forces between moving charges. Pushing a wire lengthwise by running a current through it would reveal a gap in conventional theory. The (r.v)v term in form 2 could do that.
One way to view these results is that a moving charge performs both magnetic fieldgeneration and linecutting actions upon the observer. For a neutral current element consisting of equal positive and negative charges moving in opposite directions, the fieldgenerating actions of each charge add, but the cutting actions cancel unless the whole element moves relative to the observer.
Are real overunitarians allowed to use this fancy cipherin' stuff?

This reminds me of something I've seen before...
http://video.google.com/videoplay?docid=5125780462773187994