f age four
THE DAILY TAE HEEL
SATURDAY, MAY S, l!)n
ANNOUNCING!
The
OPENING
o
The Pines
Drive In
COME OUT
Serving "Carolina''
' Better g I
iiimm i ii 1 1 1 1 1 1 IJJlJJl
& - - Watches
2 "S-fe Need
K Excellent 5
Are Radio Programs . . .
. . . Effective Teachers ?
Lioo
9 i
im Obi New Fields Dn.. CnnBOfiQiiiniDesfliB
is
A Complete Watch Repair
Service at
Project Is First
Of Type Tried,
Officials Declare
By William Workman
Six hundred college freshmen
'fj ' soon will be sitting in on an ex
periment that may well make
) . nisiory in me iieiub uj. swioi
ci science and communications.
Price, research associate irv the(ing to a given body of informa- ( Though the subject matter
institute, will supervise the sta-jtion. Other information to be se- might cover a lecture on Ameri
will serve as assistant to the di- j cured will concern family back-lean history, four groups would
rector. William R. Workman is ground, education and facts per- hear it discussed in an interview
the radio-television writer. Leo jtinent to the students' beliefs. 'form, four in a roundtable, four
Kuper and Barbara Chattier are
research assistants, and Nadine
Fitcher, administrative-secretary.
Writing and Producing
The primary responsibility for
supervision of the project is be
ing assumed by the Institute for
Research in Social Science. The i
I Institute's research staff will j
Test Students Reactions jin a story-dramatic, and four in
TT . ., . , !a story-narrative. At the same
,The University research staffs J . , ...
, ,, . . ... ..time, a control group would be
for the project, consisting of . . . . , , . . . . .
, , . , , - , . . . given the identical material in
nsychologists and sociologists, is , , , .
t , , i. j. the standard college lecture man-
interested m finding how stu- i
aenis amiuaes as wen as social
handle the experimental design
and economic backgrounds affect
their reactions to information
'presented by radio. Other ques-
concerned with radio
(, This is a project wherein the " ' I nt , ,11 itions are concerned vnta radio I snort aany quiz, uurmg ine nine
i United States Navy wants to de-i Jiernng and problems of learn- days of the experiment, two will
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w termine how much men can learn
p by radio and what type of radio
H program is the most effective
2fiftCNOCSCsCNaaC 4rrhor Fnr thp snOTPr? the
Navy has turned to the Univer
sity of North Carolina.
Working together in an effort
to find the answer are the' Com
munication center and the Insti
tute for Research in Social Sci
ence at Chapel Hill and the De
partment of Social Studies in the
School of Engineering at State
college in Raleigh.
Navy Finances
Financed by the Navy's Office
of Naval Research Special De
vices Center, the project is sche
duled to run for 12 months.
Now in the process of organi
zation and planning, the staff for J
the project is just about complete.
The-director is John E. Ivey, Jr.,
chief of the institute's division of
research interpretation. Daniel O.
Nine Day Experiment
The radip programs will run
for '35 minutes, followed by a
short daily quiz. During the nine
and administration of the testing
program, adequacy of the con
tent fcr radio programs and final
analyses of the data gathered.
Tht flnmmimiratinn renter will
he T-PQnnnciHlp fnr and simervise. i tening
t , c - r i 1
the writing and producing of the ;
ing;'as well as the objective and
critical attitudes of people to
ward social, economic and politi
cal problems and how radio lis-
might affect these atti-
radio programs.
Present plans are that the ex-
When classes start in the fall
16 groups of students will be as-
be taken up with pre-testing, six
with radio instruction and one
with an examination covering all
the radio instruction material.
jPlus covering all the instruction
al material, this final exam .will
also show any changes which
might have occurred dn the stu-
?,
Ik "" "ri
, V
I ' "r
' ' ' ' i
V if". , '
s s t , '
vV
VV "
" w,. ' s : '3S i-
periment will be conducted dur-j signed to the experiment. All'aenis
SHOWN IN CONFERENCE are members of the radio research project being conducted by iho
University for the United States Navy. Sealed (lett to right) Earl Wynn. director. Communication
center; William R. Workman, radio-writer; Harry B. Williams, assistant to the director; Nadine
Fichter, administrative-secretary; and John E. Ivey, Jr.. director of the research project.
m;x i"w.'.'-.i.
RADIO
REPAIRS,
24 Hour Service
OGB U RN
Furniture Co.
Phone 5841
West Franklin Street
f i
What types of attitudes and ex
periences are barriers to learning
ing the fall quarter of this year. ! groups will receive the same sub-1 The. final statistics and results in social science? What t'pes of
The social study classes at State 'ject matter. They will each be will provide evidence to contirm attitudes and experiences enable
college will be used as the group 'given the same number of facts, or deny the pre-determmed a person to take an objective
to be tested. Approximately 600 the same appeals, situations and hypotheses constructed by the re- point of view toward social situa
State freshmen will take part in1 examples. However, these will be search "staff . These hypotheses, or tions? Dees an objective point of
the three-week experiment. Be- in the form of four different statements assumed for the pur- view enable a person to learn
fore the experiment begins the j types of radio programs. Meeting pose of argument, will be con- better?
tistical aspects. Harry B. Williams , three times a week, these groups jcerned with such questions as: j As far as is knowrl) this is the
group will be pre-tested on their 'will listen to the radio, rather What type of radio presentation first research project of its type
knowledge and attitudes pertain
than the standard lecture.
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Phone 3536
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stimulates learning most?
r
ill
J. Paul Slieedy Switched lo Wildrcot Cream-Oil
Because He f linked The Finger Nail Test
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ALL panda-monium just broke loose for this little guy with
- the hairy ears and two black eyes. Somebody snitched his,
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grooms your hair neatly and naturally without that plastered
down loclc. Relieves annoying dryness and removes loose,
ugly dandruff. And Wildroot Cream-Oil helps you pass the
Fingernail Test! It's non-alcoljolic ... contains so&thing
Lanolin. Get a tube or bottle of Wildroot Cream-Oil hair tonic
at any drug or toilet goods counter today. And always ask
your barber for a professional application. In case there's a
panda in your house keep some Wildroot Cream-Oil
handa for him!
of 327 Burroughs Drive, Snyder, N. Y.
Wildroot Company, Inc., Buffalo 1 1, N. Y.
fBllil
1
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i i
. ever attempted. When all the
tests have been completed, pro
cessed, and analyzed, the figures
may well tell an interesting and
amazing story. Educators may be
able to program their radio time
! with shows that are of greater in
terest and instructional value.
The Navy may have evidence
pointing to new directions for
personnel training by radio.
j This information might suggest
revolutionary changes in the
manner of getting information
and instruction to reserve train
ing units. For the social scientist
it may help answer many ques
tions that have gone unanswered
too long.
READ THE CLASSIFIEDS AND SAVE
FOR SALE
6B 18 FOOT PATI1F1NDKK ll ,
I trailer. Excellent condition. I'n rd l .
p ii
22 FOOT HOUSE TRAILER
anent bed, oil heater, gas
stove, conveniently located. Priced for
quick sale. Inquire any time 16 Uni.
frailer Court. (1-379-1)
ONE ELECTRIC COKE DISPENSER
in good condition. May be seen at
Phi Kappa Sigma House anytime.
(1-363-1)
Pittsboro Road Trailer Court. (l-:','.n-i,
SOLD ALL BUT A VERY LIMITED immediate sle. See after
number of two-bedroom houses Just
completed on Rogerson Drive. These
can be seen upon application-, to Hill
Homes, Inc., 27 Rogerson Drive.
(ch 1x2)
FOR SALE AUTOMOTIVE GBB
INDIAN SCOUT MO'I OIU-Y( I I ; l v,
excellent condition. Coinjilcte i.i:m
PERM- I overhaul last December. P.e.iM.n.il.l'
cooking Phone !)367 during day or write l.
651, Chapel Hill. (1
24 FOOT ALMA HOUSE TRAILER IN
excellent condition. Electric brakes
Sleeps four. Priced for quick sale
($1295.00) John L. Harris, B-V-P
Trailer Lot No. 250. (1-366-1)
NEW BRICK HOME VERY CLOSE IN
Immediate possession. Write or call
University Cleaners for appointment
Phone 4921. (ch lxl)
SERVICES OFFERED 19
COMPLETE MODERN RADIO Ap
pliance service 'shop now open ami
ready to serve you. Wc call for. ov.
liver. Johnson-Sttowcl-W.irU hurtntuic,
422 W. Franklin. Telephone F-.')i!il
(ch lxl)
WANTED TO RENT
24B
URGENTLY NEED APARTMENT Hill
married couple, no children, tem
porary or permanent residence. Ri lci
ences furnished. Phone Mrs. Jacl;
Burke, 7781 before 4:30 p.m.; 131 M.is'in
Farm Rd. after 4:30. (l-3(i2-li
C01U
PI
& AlexandreDvmos
THE MAIN STUDIO of the Communication cenisr's Radio department. Here the dramatic pro
grams for the Navy's radio research project will be produced.
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LEGISLATURE ABSENTEES
The following legislators have
been reported to the Rules com
mittee as having been absent
from legislature meeting on May
6: Bob Allen. Kyle Barnes, Nor
man Black, Dick Boren, Richard
Bowen, Ted Leonard, Don Rob
ertson, Hilda Sharkey. Excuses
for these absences should be turn
ed in to Thurman Williams, DKE
house, before the next regular
meeting.
The Rules committee voted to
excuse the following legislators
for their absences on April 22:
Richard Allsbrook, Bill Benjamin,
Wally Robinson.
J
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MILIMD
irtLAUGIITOiY
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CHAR
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... immM
99
Maureen O'SuIlivan George Macready
Rita Johnson and Elsa Lanchester
Harold Vermilyea
Midnite Show Toniie
Research Program Produces Technique
for. Tapering Molten Nylon Bristles
CAROLINA;
LI'L ABNER
By AL CAPP
fIT'S UP T'TH' PUBLIC, CUSS
YO'ALL-T' WRITE. OLE MAN
MOSE-CAPsE O' THIS NOOSE1-
1 CAPER TFI I IM' WIM VUI IT D4CT
O OUR LI FES VO WANTS US
T'LIVE OVER AGIN zf
An rvM c I LIVC UVC.K
MAH FIGHT WIF OOAN
L. SULLIVAN OR TH'
l CASE O' TH ' BURPINYORE.
VASE OR THET -8RXRf.r)
TRIP T BOSTON .V
OH -AH HOPES Ht LXDKTT HAFTA
TAWGLE WIF ANY O' THOSE GALS
AG IN - LIKE. PANTH ER-EYES,"
OK WOLF-13 z:
A 17
i
v v VLm.wu'U., -ikn-a, , i r - ivuu.i, .. .js.tr.A iv i
feTfeir
- 2J k. 7 get your letters' I
- i c: r-g f fr.::;::;"",, iNi within TWO weeks I
sROAN.V-it'd be just MAH
SIX 6G. LESSONS FROM
ADAM LAZONGA AGIN.1'
4
GEEROLOGY class tonite-at HARRY'S
Difficult mechanical probfems
solved by Du Pont chemists
and engineers to make nylon
paintbrushes practicable
i
Nylon bristles used in toothbrushes and
hairbrushes are uniform in diameter
that is, they are "level." But paint
brushes made from such bristles did
not paint well. Studies of the best natu
ral bristles showed that they were ta
pered, so a research program to produce
tapered nylon bristles was started.
Some difficult mechanical problems
were encountered. Level brush bristles
were being made by extruding molten
nylon through spinneret openings de
signed to produce filaments of perfectly
uniform diameter. A new technique had
to be found to make tapered ones. Since
it was not practical to taper the fila
ment after cooling and drawing, a pre
cise taper had to be put in just as the
nylon emerged molten from the spin
neret. And it had to survive the drawing
operation, in which nylon is stretched
to several times its original length!
Techniques originated in laboratory
The original idea for solving this prob
lem came from Du Pont chemists, who
worked out the techniques in the lab
oratory, in the somewhat crude form
represented in the accompanying dia
gram. It being largely a mechanical
problem, chemical and mechanical en
. gineers were called in to cooperate soon
after the studies got under way. After
further laboratory development, the
engineers put the operation on a pro
duction basis.
The final result was a highly efficient
process for tapering nylon bristles. As
the molten filament emerges from the
spinneret, pinch-rolls driven by a series
of gears pull it slowly, then quickly.
The size of the filament varies with the
speed of pulling thick diameters re
sulting at slow speeds and thin diam
eters at fast. Next the nylon goes to
the drawing operation, where it is
stretched by rollers to give it strength
and resiliency.
Engineers designed special machines
Following spinning and drawing, in
which many filaments are handled si
multaneously, the nylon is "set." Then
it goes to a special machine, designed
by Du Pont engineers, which "feels
out" the crests and troughs and cuts
the bristle at these points. This type of
design was necessary because of the un
avoidable small variations in the length
of individual bristle. Sorting the bris-
Pretent state of development of the "(pin-draw"
machine evolved from the crude laboratory
apparatus shown in the diagram below.
ties and sandpapering their ends com
pletes the process.
Many techniques contributed to the
development of the optimum properties
of nylon in tapered bristles. At the lnb
oratory stage, x-ray studies were rn.-Kjo
to learn the effect of various degrees of
crystalization on bristle drawing and
setting. Numerousdeviceswcredosigncrl
to test the bristles for example, a ma
chine that simulates the abrasive efTec.
on a brush swept back and forth over a
surface. Even after manufacture was
established, high-.speed slrobo.sropic
photography and other stroboscope
studies were employed lo improve co
ordination in the various operations
and make a more uniform product.
The development of these bristles
furnishes another striking example of
the great variety of problems, often
intricate, that may arise out of the dis
covery of a n2w substance like nylon.
Questions College Men ask
about working with Du Pont
RESERVOIR
OF
MOLTEN
NYLON
ENLARGED VIEW
OF TAPERED FILAMENT
WATER BATH-
n
I I 'mcH"atK--sPEL1.1pT.eoEAi
r MJJ-XfczK
, eoBsm
What are the opportunities
in development work?
The conception of an idea in a research
laboratory is merely the starting point at
Du Pont. Men with training in mechanical,
electrical, metallurgical, and chemical engi
neering are required to demonstrate the
practicality of the laboratory findings, in
cluding small-scale operation of the new
process. Even after the full-scalo plant is
operating, development work it. continued
to improve efficiency. Write for booklet,
"The Du Pont Company and the College
Graduate," 2518-A Neniouxs Building, Wil
mington 98, Delaware.
Diagrammatic representation of the first laboratory apparatus used to establish the princ:p!a of
making nylon from molten plastic. (From on early patent.)
BETTER THINGS FOR BETTER LIVING
...THROUGH CHEMISTRY "
More facts about Du Pont Listen to "Cavalcade
of America" Monday Nights, NBC Coast to Coast