"Philadelphia Experiment" Disappearing Ship Theoretical Premise in plain English
It has been suggested by (Andersen(1), Moore.Berlitz(2), Adams(3) the Corum Brothers(4)) that the so called "Philadelphia Experiment" which is alleged to have caused the vanishing and reappearance of the Destroyer Escort USS Eldridge was actually a large scale Ferro Magnetic Resonance (FMR) Experiment.
The reasoning as promoted by Adams is as follows:
If a DC bias is applied to a solenoid with an iron or ferrite core (called the "sample") a magnetic field will result in the sample. The presence of the magnetic field induces the electrons within the iron to wobble about a central axis which produces what is called a precession cone. The precession cone is a zone of rotational energy which induces a directional Spin Angular Momentum to the atoms of the core metal itself. The core itself does not rotate in response to the induced field visibly, rather the precession of the electrons cause the nucleus of the atoms in the core to collectively obtain individual finitespin angular momentums

The result of this activity is called a spin echo which is a radio frequency signal which can be detected by sensitive instruments placed near the core inside the solenoid. The spin echo can be detected after the magnetic field is removed, often for a second or two due to the effect called ferromagnetic resonance (FMR). Resonance occurs when the magnetic field proceeds through various intensity levels, accounted for in units known as Tesla (T) in it's expansion and collapse process. These resonances result in the emission of radio signals which vary in frequency according to the value of T or magnetic field intensity.
It is proposed by Adams that ordinary FMR experiments operate on small samples and are purposely designed to allow time to actually detect the spin echo, after the Magnetic field is removed, with frequency detection apparatus (i.e. a radio or a Spectrum Analyzer). Since the spin echoes only result from the applied field's expansion or contraction process, and can last for some some time after the field is removed, the collective angular momentum of the nucleus is lost to friction - like impediments at the nuclear level. This friction supposedly has a finite value, and could be eventually overcome with the "correct" application of magnetizing currents in such a manner so that the resonances that occur begin adding energy to produce more spin angular momentum in the nuclei of the individual atoms.
As an illustration of this effect, imagine that one of the wheels of your car is stuck in a muddy hole in the road and you have to push the car by hand to get it out of the predicament. If you have ever been in this situation it is usually much easier if a rocking motion is effected by pushing the car a short way forward so that it climbs part way up the forward part of the hole, then you relax and allow the car to slip backwards. After the car has reached the end of it's backward motion, you give it another shove in the forward direction. If you repeat this process a few times it is usually much easier to get the car out of the hole than it would be if you just applied a continuous push in the forward direction.
Once the car in this analogy is "out of the hole" continuous pushing, either by yourself or the car's motor, will allow the car's forward or linear angular momentum to increase almost without limit (within reason).
Adams theorizes that the spin angular momentums of atomic nuclei could be likewise forced to attain very large values by performing a "rocking motion" of the applied magnetic field, similar in essence to the car analogy above. The object is to get the momentum of the nuclei out of the natural "force well" that it supposedly occupies, analogous to the hole in the road, and thereafter the spin may be accelerated to an almost limitless value by the continued application of a steady magnetic field.
The question is exactly how would a very large and ever increasing spin angular momentum value in the all the atomic nuclei of the sample metal manifest itself?
Quoting Adams:
"If a DC
bias is applied to a solenoid that contains ferromagnetic matter inside it, the
material becomes magnetized. Initially, in the process of magnetization, the
electrons (also called spins or magnetic moments) precess in a decaying orbit
about the longitudinal (z-axis) of the material. The designation spin is another
way of saying angular momentum.
"If the DC bias varies in magnitude then the precession decays and expands
maintaining a roughly average orbit about the z-axis. The average orbit of the
magnetization vector describes a cone (the precession cone).
"The nucleus is not involved in the resonance. For iron, two electrons per atom
are mobilized. With the enormous number of atoms in a sample the magnetic field
can be large. In the case of iron, the saturation magnetization, Bs, is about 2
Tesla. No higher field can be obtained in or around the
material.
"The precession frequency for a 1 Tesla field is in the billions of radians per
second. This is the most significant aspect of ferromagnetic resonance. However,
friction generated in the resonance process prevents the resonance from reaching
an infinite value.
"The solenoid and core could be the seed from which a wormhole grows. --See
Adams, Above Top Secret, The Philadelphia Project.
"One goal of creating a wormhole is to shorten the distance between two
locations. The quantities below indicate how the distance would shrink. Since
the 3 dimensional distance between two locations remains constant, it is the 4
dimensional distance that can be manipulated.
4d dist = sqrt((ct)^2 - x^2) [1]
where c is the speed of light, t is time, and x is the 3d dist.
"The equation above has been called the 4d dist by Gamow, the space-time
interval by Minkowski, the distance through a wormhole (Adams) and the
teleportation equation (Adams, Above Top Secret, op. cit.)
"To make practical use of the equation above, it must be transformed.
"4d dist = sqrt(c^2 ((Tf)^2 - (To)^2)) [2]
"Moore estimates that the disappearance of the ship took a few seconds. To =3.
If the actual time, Tf, was also 3 seconds, then the 4d dist goes to zero and
the origination and destination become instantly connected.
"The intermediate steps transforming [1] to [2] are not difficult. They are left
as an exercise for the interested reader."
Adams thinks that it is likely that the "Philadelphia Experiment" can be done on a small scale. - JO
References:
(1) Rick Andersen, Search terms" "'rick andersen' + 'philadelphia experiment'" , internet
(2) Charles Berlitz and William Moore "The Philadelphia Experiment: Project Invisibility"
(3) Larry Adams, Private communications, http://www.abovetopsecret.com/forum/thread60003/pg4
(4) K.L. Corum, J.F. Corum, and J.F.X. Daum, PHD's' :"Tesla's Egg of Columbus, Radar Stealth, The Torsion Tensor, and 'the Philadelphia Experiment'"
Speculative "Torsion Generator" circuit design