wrote ...
"Szczepan Bia?ek" wrote:

As you know I do not understand why in XXI century most scientists use
the
hydraulic analogy.

The hydraulic analogy is use to teach basics to children.

The fluxes are for students. The divrotH = 0 also.

Permittivity and polarisation are from the hydraulic analogy.

Nope, you haven't a clue what permittivity and polarization are.

Now conductivity and electrostriction should be used.

Babbling, word salad, nonsense.

Electrostriction is a new. The "" For frequencies at which dipole
orientations cannot follow the applied field "
is rather old.
Do not stay in Heaviside water.
S*