RUM NM JMI#1M Al's DAILY

FRMAY, AUGUST 15, 1930,

Ir I

~flE~U1MRR IOHGAIIDAIY FIDAY AUUST ~, 930


DAILY OFFICIAL BULLETIN
Publication in the Bulletin is constructive notice to all members of
the University. Copy received at the office of the Dean of the Sum-
ier Session until 3:30, excepting Sundays. 11:30 a. m. Saturday.-
VOL. X. FRIDAY, AUGUST 15, 1930 NUMBER 40
Non-Resident Members of the Summer Session Staff: President and
Mrs. Ruthven will be at home to visiting members of the Summer Ses-
sion staff and their families this afternoon, from three-thirty to five-
thirty, at 815 East University Avenue.

ENGINEERS CARRY ON AUTOMOTIVE
EXPERIMENTS WITH STANDARD SEDAN

Undergraduate Houses for Women: Signing-out slips should be
in the Undergraudate office of the League on or before August 15.
Isabelle Rayen, Summer President.

left

College of Literature, Science, and the Arts: All students completing
the requirements for graduation at the end of the Summer Session may
pay the diploma fee now and until the close of the session. Blanks may
be obtained in Room 4, University Hall. D. L. Rich.
Speech 175 will meet Friday morning at 9 o'clock in room 3528, New'
Medical Building. Henry Moser.
Examination for University Credit: All students in the Colleges of
Literature, Science, and the Arts, Engineering and Architecture, and
Pharmacy, and in the Schools of Dentistry and Education, who desire
credit for work done in the Summer Session will be required to pass
examinations at the close of the Session according to the following)
schedule:
Hour of
Recitation 8 9 10 11
Time of Thursday Friday Thursday Friday
Examination 8-10 8-10 2-4 2-4
Hour of All other
Recitation 1 2 3 hours
Examination Thursday Thursday Friday Friday
Time of 4-6 10-12 10-12 4-6
Graduate Students: The grades for graduate students will be mailed
from the office after the close of the summer session. The practice of
leaving stamped, addressed envelopes has been discontinued.
Sabina Conrad, Recorder.
Wesleyan Guild Steak Roast and Swimming Party, today at 5:15.
Meet at Wesley Hall, corner of State and Huron Streets. All welcome.
-AT-
JEAN GOLDKETTE'S
Blue Lantern Ball Room
ISLAND LAKE
Scarlet Mask Band-Ohio State University
On Grand River 11/2 miles east of Brighton, 6 miles west of New Hudson
DANCING NIGHTLY, EXCEPT MONDAYS.
SUNDAYS CONTINUOUS FROM 7:30 P. M.

One morning last week an ap-
parently brand new 5-passenger, 6-
cylinder sedan of a well-known
make came dramatically through
the basement wail of the East
Physics building of the University
under the impetus of ropes and
pulleys in the hands of perspiring
workmen. Almost four years earlier
to a day the same car had entered
the laboratories in the basement of
this building, in the same unusual
fashion. The speedometer of the.
car reached something over 18,000
miles, yet the wheels had never
travelled an inch on the road:
those 18,000 miles had been travel-
led only in the interest of science.
For four years this car, supported
by an especially constructed frame-
work and rollers, bristling with
sound-measuring devices m a d e
solely for the purpose, and stand-
ing in the center of a perfect net-
work of wires, has been used by the
scientists of the University in ex-
periments seeking to measure the
noises made by the differential and
transmission gears of a car and to
trace the paths by which these'
sounds reach the ears of the car's
occupants.
At the end of the experimentsI
the men who have been carrying
them out claim no wonders. They,
have not succeeded in making a
noiseless car not do they believe
that one will appear in the near

future, but through their labors
they have devised electrically-oper-
ated sound-measuring instruments
which are now being employed suc-
cessfully in the factories of the two
well-known manufacturers of gears
in whose interests the experiments
were carried out.
But while these researches have
not wrought any miracles, they
have brought to light any amount
of interesting data in regard to the
sounds made by the moving parts
of a car, and the fashion in which
these sounds manifest themselves.
In charge of the work which has
been done in the laboratories in the
Department of Physics, through the
Department of Engineering Re-
search, were Professor Floyd A.
Firestone, E. J. Abbott, Dr. H. B.
Vincent, and R. V. Zumstein. The
first three men are still members
of the faculty, Mr. Zumstein having
gone in the meanwhile to Ohio
State University.

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