THURSDAY, SEPTEMBER I, 1960
MEDFORD MAIL TRIBUNE, MEDFORD, ORE.
A 5
Silence Still
Golden; In Fact,
It's High Priced
Washington - (Science Serv
ice) - Silence still is golden.
In fact, it may be priced be
yond reach in this noisy jet
and rocket age.
The role of economics in
getting rid of today's increas
ing noises was pointed out by
Dr. Richard H. Bolt, profes
sor of acoustics at the Massa
chusetts Institute of Technol
ogy and associate director of
research for the National Sci
ence foundation, in testimony
before the House Committee
on Science and Astronautics
at hearings on the effect and
control of noise.
The annoyance level of
noise, or what Dr. Bolt de
fines as "unwanted sound," is
determined by much more
than just intensity. Most per
sons, for example, enjoy the
loud rush of a waterfall while
the relatively small whine of
a mosquito is often intoler
able. Noises made by jets and
rockets certainly are "un
wanted sounds," particularly
unwanted by those who live
near airports and launching
facilities. But these noises
are here to stay, Dr. Bolt said,
unless the high performance
and advantages of swift travel
of supersonic aircraft are sac
rificed. Can Be Reduced
"The noise from these pow
erful sources, when off the
ground, can be reduced by
only a small margin without
incurring seVcre penalties in
performance." On the ground,
jets and rockets can be muf
fled to almost any extent,
"limited only by dollars."
The national investment in
combating noise has been
from 20 to 25 million dollars
in the past 15 years. The bulk
of this support has come from
the armed forces and the Na
tional Advisory Committee
for Aeronautics, now super
seded by the National Aero
nautics and Space administra
tion. Ira H. Abbott, director of
NASA's office of advanced re
search programs, told the com
mittee that "it is reasonable
to expect a solution to this
problem."
Dr. Bolt said progress in
combating the noises made by
new machines is counterbal
anced by advances in their
development that make them
work better but noisier.
' "Acoustic perfume," the
substitution of a preferred
sound (music, waterfalls) for
a noisy unwanted one, was
suggested by Dr. Bolt as a
method that has proved suc
cessful in lessening the im
pact of noise.
Succeaiiul in Dentistry
It has proved successful in
dentistry, he noted, where
dentists have employed an
"audiac," a device whereby
the sound of the drill is ob
scured for the patients by
music and other pleasing
founds.
It also has been found that
air-conditioning in homes near
airports lessened the impact
of noisy 'Qake-offs and land
ings. Dr. Bolt suggests major ad
vances will be made through
nation-wide planning for avia
tion facilities, airports and
areas abutting sources of
noise.
"Although it must incor
porate scientific Information,"
he said, "such planning is not
a subject of scientific re
search. It is one of national
understanding and coordinat
ed action."
- However, at the present
time, the nationtl regulations
set by the Federal Aviation
agency for noise reduction for
airports and facilities allow
for greater exposure to noise
than do the airport regulations
set by New York Port
authority.
'Fill Her Up' Order
Difficult for Tender
St.Louis - Bartender Valen
tine Tatitch had more trou
ble than usual, this time, in
complying with the order to
"fill her up."
A car broke the paving over
a 120-year-old well on the
parking lot next to the cock
tail lounge where Tatitch
works.
. It took more than a ton of
rock to fill the old well to
the water level. ,
HIGH BLOOD PRESSURE
: Washington, (Science Serv
(rp)-Partial bathing helps pa
tients with high blood pres
mre. Dr. Takashi Sueivama.
Tohoku University Institute
of Balneology, Japan, report
ed at the Third International
Congress of Physical Medi--in
here. Dr. Sueivama said
a simple partial-bathing ap
paratus he devised had a nor
malizing action on blood pres
sure, which continues to laii
with id ntp fnr two to three
weeks. Water bathing of the
whole body or partial bathing
of the extremities is a popu
lar fnrm of thcraov for high
blood pressure In Japan and
ether oriental countries.
You'll find all kinds of wonderful foods for your
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NABISCO
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Shortbread Cookies 1
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