You make a good point about the money thrown away on hot fusion devices. Magnetism certainly behaves in strange manners as I have seen when looking into RF shielding over the years. It is too bad that the charge currents induced onto and into the surfaces of the metals change the net field as seen by the other charges. I suppose that a similar thing happens when you attempt to define the net forces acting upon the plasmas of the devices you are speaking about.
I generally make an effort to choose an observation frame that brings to light simplified behavior and that is the reason I asked my question. If the charges are motionless, I was wondering how any coupling among them would behave. Dave -----Original Message----- From: Jones Beene <jone...@pacbell.net> To: vortex-l <vortex-l@eskimo.com> Sent: Sun, Feb 16, 2014 10:27 am Subject: RE: [Vo]:Velocity dependent model of Coulomb's law Dave, The view is not invalid, but of limited use. My focus is not the magnetic vector potential per se, but that it all prior models may be irrelevant for modeling common applications like ICF. In looking at the geometry of this device, or almost any plasma device - one could logically expect Coulomb's law to interfere with spherical convergence due to increase in opposite polarity in the central zone, but that is not what happens in practice. In fact the opposite. In a Tokomak, one should expect far better containment than what happens in practice. Thus we have no working Tokomaks, despite 10 billion down the drain. In an electron or ion beam, it was not appreciated for many years how intensely same charge was attracted, instead of repelled. If there is a broader message in why we have no hot fusion today, it probably is that magnetism is nearly impossible to model in a plasma containment device based on first principles. In all cases we have to work backwards incrementally from known results, making alterations as we go. Every model is a work in progress. Did I mention solar flares? From: David Roberson Jones, How would an observer moving along with the linear charges be affected by its neighbors? Is there reason to consider this an invalid view point? -----Original Message----- From: pagnucco Jones, I should have added that the magnetic vector potential is not only small for chaotic plasmas, but also for expanding or converging spherical charged plasma shells. It will only be large in intense, linear flows. -- LP > Jones, > > You refer to something worth noting, but not the magnetic vector > potential. > > Ideally in a fusor, the particles converge to a point in the center of > the fusor, but the magnetic field momentum at the center is quite small. > > Energy is borrowed from outer convergent spherical shells of electrons or > ions, but that is a scalar coulomb effect - not magnetic vector potential. > > -- LP > > > Jones Beene wrote: >> BTW the Farnsworth Fusor benefits from "spherical convergence" of ion >> vectors. >> >> The vectors are self-focused and not chaotic. >> >> Farnsworth/ Hirsch found the fusion threshold is lowered by a factor of >> 4 >> due to spherical convergence, allowing substantial neutron production at >> far >> lower voltage potential than colliding beams. >> >> Polywell borrowed the idea >> >> http://www.askmar.com/Fusion_files/Polywell%20Ion%20Focus%20Concept.pdf >> >> >> >> >> >> >> >> > > > >