On Fri, 28 May 2010 01:47:40 -0700 (PDT), lu6etj
wrote:

On 28 mayo, 03:18, Richard Clark wrote:
On Thu, 27 May 2010 19:10:41 -0700 (PDT), lu6etj
wrote:

2) What would be Rs optical analog?

Superman's cataracts with his xray vision. *This is probably going to
be your only direct answer.

73's
Richard Clark, KB7QHC

OK, good example. Cataracts presents absortion, transmission and
reflection (they are whitish). To be analog I think should not have
reflection. What do you think? (Perhaps seems maieutics but really I
am trying to put my thoughts in order at first).

Whatever reflects, also absorbs and vice-versa. The notion that the
interface is a singularity (infinitely thin) cannot be found in
reality. Arguments that hinge on this non-existent property are made
for the novice to intermediate student. Those who practice the
science of optics at the bench never observe this metaphor in reality.

What about the third point? I consider it important because light
waves are in three dimensional space, so when they cancels in a
region, reinforces in other and I can understand redistribution, but
line travelling waves are in unidimensional space and here I can not
visualize (realize?) the energy redistribution as in light
interference. Sorry, when I put interrogation words inside
parentheses is that I am not sure the better/adecuated translation.

Superposition is the collapse of all possible solutions to a real one.
To be real, we must have an observer. Frequently that is called a
load. That load may be a transducer (light cell). Without the
observer, both energies are present - nothing cancels. What is called
redistribution is a superstitious necessity of trying to visualize the
math. Redistribution is a strained term that is useful as a placebo,
but nothing moves in the redistribution (an irony or a paradox which
is more useful in entertainment).

Traveling along the road of using optical metaphors is troubling for
those who have never worked at an optic bench. Cut and paste theory
from eminent authors occludes vision.

73's
Richard Clark, KB7QHC