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John Delacour wrote:
<blockquote TYPE=CITE>>Why dont you
<br>>describe your understandings of this in more detail. The phrase "radiate
<br>>acoustic energy" for example.... thats a little vague on the surface
of
<br>>it...
<p>Its certainly on the surface of something, but vague it aint, except,
<br>of course, in French -- vague=wave -- in which case yes, but it's a
<br>lot of little vagues on the surface of it, or rather, radiating
<br>_from_ the surface of it.
<br>
<p>JD</blockquote>
<p><br>Well, see the reason I ask is that your "radiate" seems to correspond
pretty good with Olsons description of sound board radiation in which case
I see almost the exact same description when it come to Benades description
about the longitudinal nature of transverse like surface waves. In all
this you could sort of look at these as a huge collection of tiny
... Olson uses the word "pumps" pushing away at the air in his description
of sound board radiation.... btw.. I read your stress waves reply to Phil
and this also points in this same direction. You said then
<blockquote>"Acoustic radiation is caused by minute pressure differences
at the surface of a body."</blockquote>
As for using the correct terminology JD.... wouldn't that be nice, but
we are both living on the planet earth and here people regularly redefine
terms, or redescribe the things terms refer to on such a regular basis
and for no other reason sometimes then just because they don't like the
existing term, that the whole concept of "correct terminology" is very
largely in the realm of wishful thinking. Kinda vagues up the whole
communication thingy a bit I know... pain in the pattootey... but such
is life I guess.
<p>Your analogy with the magnets is fine. Its not my picture of the relationships
between particles that was at issue... I was asking you for yours... makes
it easier to relate to what you have to say to know where I have you to
begin with sost to speak.. :)
<br>
<p>--
<br>Richard Brekne
<br>RPT, N.P.T.F.
<br>Bergen, Norway
<br><A HREF="mailto:rbrekne@broadpark.no">mailto:rbrekne@broadpark.no</A>
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