🚀 go-pugleaf

On Sep 23 John Polasek wrote in sci.physics:
> Pentcho Valev wrote:
> >The theory is based on the assumption that all of the forces are
> >CONSERVATIVE:
>
> >W. Panofsky, M. Phillips, Classical Electricity and Magnetism, Addison-
> >Wesley, Reading, Massachusetts (1962):
> >p.96: "By assembling these charges we have changed the energy of the
> >system, and since all of the forces are conservative, we can identify
> >this expression for the work of assembly with the energy of the
> >system."
> >p.102: "The resultant energy expression is nevertheless general, since
> >no nonconservative forces are involved."
> >p.103: "We must remember that the only physical fact underlying this
> >discussion is Coulomb's law, the remainder of the discusion being
> >mathematical, and therefore we cannot expect to obtain any physical
> >concept regarding the mechanical interaction of charges which will add
> >any physical facts beyond Coulomb's law."
>
> >Yet the fact that NONCONSERVATIVE forces are unavoidably involved is
> >implicitly taken into account:
>
> >W. Panofsky, M. Phillips, Classical Electricity and Magnetism, Addison-
> >Wesley, Reading, Massachusetts (1962):
> >p.100: "Thus we cannot equate the increment of the work done... to the
> >increase in total energy, since heat transfers are also involved."
> >p.115: "Therefore the decrease in force... cannot be explained by
> >electrical forces alone."
> >pp.115-116: "Thus the decrease in force that is experienced between
> >two charges when they are immersed in a dielectric liquid can be
> >understood only by considering the effect of the pressure of the
> >liquid on the charges themselves. In accordance with the philosophy of
> >the action-at-a-distance theory, no change in the purely electrical
> >interaction between the charges takes place."
>
> >Another description of a non-conservative force in an electrostatic
> >system:
>
> > http://www.amazon.com/Introduction-Electromagnetic-Theory-Modern-Perspective/dp/0763738271
> >Introduction to Electromagnetic Theory: A Modern Perspective
> >by Tai Chow
> >p. 267: "Calculations of the forces between charged conductors
> >immersed in a liquid dielectric always show that the force is reduced
> >by the factor K. There is a tendency to think of this as representing
> >a reduction in the electrical forces between the charges on the
> >conductors, as though Coulomb's law for the interaction of two charges
> >should have the dielectric constant included in its denominator. This
> >is incorrect, however. The strictly electric forces between charges on
> >the conductors are not influenced by the presence of the dielectric
> >medium. The medium is polarized, however, and the interaction of the
> >electric field with the polarized medium results in an INCREASED FLUID
> >PRESSURE ON THE CONDUCTORS that reduces the net forces acting on
> >them."
>
> Pentcho you evidently have this book and I hope you didn't pay $120.95
> for it on Amazon, where they also have a used one for $22.77. This one
> is 50 years after Panofsky and the same Neanderthal reasoning
> prevails. Tai Chow smoothly says "The medium is polarized, however,"
> without saying how this polarization is accomplished.
>
> I tried to explain it in my note above. One charge Q1 has so many
> coulombs per square meter, which when divided by K*eps turns into E
> volts per meter generating the force that works on Q2 coulombs.
>
> If the author wants to make his liquid force theory stick, he has to
> show how the electric field causes a pressure gradient in the liquid.
> Anything less than that means he is simply intoning the folklore of
> recitational physics.

I have explained how the field causes the mysterious pressure here:

http://wbabin.net/valev/valev2.pdf
BIASED THERMAL MOTION AND THE SECOND LAW OF THERMODYNAMICS

If you want to read the whole paper, note that the symbol for partial
derivative (similar to " d ") may still be replaced by the symbol " ¶
" - at least the problem is not fixed for the moment.

Pentcho Valev
pvalev@yahoo.com