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Bill Cardwell is a
retired Senior Research Associate of Chevron
Research Company. He holds B.S. and M.S. degrees
from the California Institute of Technology.
Cardwell is a registered Professional Engineer
and an emeritus member of the Acoustical Society
of America, The American Chemical Society, and
the Society of Petroleum Engineers.
Bill Cardwell's research on the trumpet began in
the late fifties as a hobby that combined his
scientific background with his interest in the
trumpet, which he had played since the age of
nine.
In the early sixties, using fundamental
physics and mathematics, Bill derived equations
that made possible the first predictions of
trumpet bell air column shapes.
His key advance
over previous investigators was to take into
effect, quantitatively, the tuning effects of
the mouthpiece and leadpipe. He has 22 patents
and publications dealing with various
acoustical, mechanical and mathematical
disciplines. We have been consulting with Bill
for over 25 years.
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