straightman:
The net result is that there is still no
vectoral addition that blacks out the light bulb simply because you
can exhibit "away from and toward directions."

[.... Ta-da-dum!]

stooge:
A light bulb does not emit coherent light so your
statement is 100% irrelevant to coherent RF sources
and/or coherent laser sources.

straightman:
And if that source WERE entirely coherent?

[Ba-Boom!]

scientist (wearing white lab coat steps from behind curtain):
The observer would still perceive as much light;
and absolutely none of it would destructively/constructively
interfere.

Simply because the source can exhibit "away from and toward
directions" is wholly immaterial. Direction vectors and power
have nothing to do here.

[voice over and closing music]:
Ladies and gentlemen. The experiments performed here
should not be attempted at home. Further, please do not
plonk the stooge on stage as his performance is part of our
audience's instruction and distracts their attention.

We thank your patronage and look forward to more skits. :-)

Richard Clark wrote:
straightman:
And if that source WERE entirely coherent?

If that source were entirely coherent, superposition
between the forward waves and reflected waves would
result, obeying the laws of physics. Some areas could
be very bright obeying the total constructive interference
equation. Some areas could be totally black obeying the
total destructive interference equation. You really
should read _Optics_, by Hecht and get back to us.

The above is EXACTLY how antenna radiation patterns
are achieved.
--
73, Cecil http://www.qsl.net/w5dxp

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On Thu, 21 Jul 2005 19:19:23 -0500, Cecil Moore
wrote:
Some areas could be
You might already be a winner!

Is that you? Are you really Ed McMahon? Have you stopped drinking
since Johnny died?

.... Oh, sorry, Skitch Henderson? When did you pick up the contract
for Publisher's Clearing house?