0
EIGHT MEDFORD (OREGON) MAIL TRIBUNE
Tuesday, October 13, 1953
SCIENCE AT WORK United Press Scienca Editor
New York (U.R It now ap
pears that copper has nothing
to do with black cats having
black hair. Scientific study has
demonstrated that the white hair
of a white cat shows 34 parts of
copper per million parts, where
as the black hair of a black cat
shows 14 parts per million.
This analysis was made by
Harold Goss and M. M. Green of
theSUniversity of California. It
contradicted the findings of
group of Japanese scientists
whose analysis of the hair of
men, guinea pigs and rabbits in
dicated that copper had much to
do with black hair.
Goss and Green used a differ
ent method of measuring copper
content of hair which is more
likely to be precisely accurate
than the Japanese way, chemists
told this writer. Goss and Green
also examined many more varie
ties of hair hairs from a three-
year-old red-headed child, for in
stance. Those hairs showed 47
parts of copper per million parts,
which might suggest that copper
gave the reddish color.
Amine Acids
The sample evidently came
from a baby book because they
also analyzed the adult hair of
the same 'person. Now the cop
Oper content Was down to 15 parts
per million. The hair of another
red-haired adult showed 18 parts
per million, and that of another
redhaired child showed 18 parts,
too.
But hair from two light red
Hereford cows showed 26 and
30 parts per million, which
might seem indicative. So Goss
and Green took hairs from a red
spot of a calf of the spotted Here
fords and hairs from a white
spot. The former showed If
p.p.m. and the latter showed 23
p.p.m.!
Hairs from a black dog and a
white dog showed what cat hairs
had shown there was more cop
per inJhe white hairs. That ap
plied to guinea pigs, sheep, and
rabbits, but not to hogs. A white
hog hair had 12 p.p.m. of copper;
a black one had 17 p.p.m.
Science knows that the pig
menting matter of hair is de
rived from the amino acids, tyro
sine and trytophan. But the
question is, these amino acids
and what else make one human
being black-haired and another
red-haired find put color spots on
cattlegcats, and dogs? It's a neat
scientific problem.
Th Japanese scientists, H.
Kikkfwa, Z. Ogita, and S. Fu
jito, had suggested that the
"what else" might well be iron,
cobalt, nickel, molybdenum and
copper, all of which are included
in the functioning chemistry of
mammalian bodies, in "trace"
amounts. And they may well be
- right; the only trouble is, they
haven't demonstrated it scienti
fically yet.
' For example, Goss himself has
shown that the wool of black
sheep will grow out colorless
Britain Has Answer
To American Jets
London U.R) Britain to
day disclosed its answer to the
latest American jet passenger
plane designs, a "double-bubble"
turbo-prop transport that carries
105 passengers at 425 miles per
hour.
Vickers- Armstrong released
the design and British European
airways announced the first or
ders for the double-decker "Van
guard," a challenge to the Am
erican Lockheed Electra.
British airmen immediately
dabbed the Vanguard "double-
DuDDie Because or its two-aecK
design.
The Vanguard will be built by
the same firm that developed
the original turboprop Viscount
airliner. The Viscount is the
first all-British airliner sold to
American carriers.
IT D U2 E E)
'TIL IT HURTS ?
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TO MINOK ILLS.
Nutritional experts reveal vitamin losses
in cooked foods plus faulty diet may
be seriously undermining four energy,
strength, and resistance, making you
feel on edge affecting your appetite
spoiling your sleep because your body
is vitamin and iron starved.
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when their food contains too
much molybdenum, but the
black pigment reappears quick
ly when 100 parts per million of
copper are added to the high
molybdenum diet. First aware
ness of this phenomenon was
when it was observed that cat
tle feeding in pastures with
grasses high in molybdenum lost
their hair color.
Yet Goss and Green demon
strated that the hair of normal
white sheep consistently showed
a higher copper content than the
hair of black sheep.
The scientific reports of both
the Japanese and the California
investigators were published by
the American Association for the
Advancement of Science.
s-..- fieri mr - j mm jaamtg
PREDICTING THAT IT won't be long before huge atom-powered airplanes take over the
skies, G. I. Pokrovsky, eminent Russian scientist, describes how an atomic plane of the
future might look and operate. Drawing in Soviet magazine "Young Engineer" shows pencil-slim
fuselage 600 feet long from supersonic needle nose to atom plant in tail. Engine
would resemble today's turbo jet with a reactor, instead of burners, and uranium dust as
fuel. Passenger compartments are forward, cargo in center. (International Sowndphoto)
Rural Census Shows Less Active Farmers
Champaign, 111. (U.R) Only
about three-fourths as many per
sons in Illinois are farming as
three were in 1920, a University
of Illinois rural sociologist has
reported.
C. L. Folse said the 1920 Illi
nois population included about
a million farm people, one-sixth
of the total population. The
1950 number had dropped to
about 750,000 only about one
twelfth of the total population.
The sociologist said, however,
that the number of country
dwellers who do not farm has
increased from just under a mil
lion in 1920 to about a million
and a half in 1950.
The most rapid change in the
state's population occurred in
the last 10 years of the 30-year
period and the trend has contin
ued even faster since 1950, Folse
said.
Most of the increase in "rural,
non-farm" population has been
in the suburban areas around
big cities, although ; some per-
Tarantulas arc not usually
dangerous even though they are
poisonous. - some
turned into pets.
have been
sons who do not make their liv
ing farming are moving into the
open country. .
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XI
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