THUMDAY, N0V9;BRn 27, 1830

THE MTCHIAN DAILY



E1 D1N SEKSNE
F GI F
Investigates Rockets Giving Off
Light by Night, Smoke
During Daytime.
STUDIES SOUND SIGNALS

P Prqf Higbie Develops Prismatic Glass
to Increase Illumination in Skyscrapers

tWhat s G oing, Ol

TODAY.

Inventor Considers Radio
Delicate for Use as
Fog Warning.
(Ply Associated Press)

Too

Newv styles in the use of glass in
windows, that restore some of the
daylight lost in city canyons, have
been developed in the engineering
colleac.
T(V have a sighting effect equal
to b-inging the "skyline" down be-
low the tops of ba.Cdings whi h
shut off the sky view.
Such effects may be prod uc s
with several varieties of glass ui
they are applied properly t^ hc
windows, said Prof. H. H-. Eiigbio,
of the department of electri>i en-
ginceiing, who has been studying
how to use daylight most efi'cctive-'
ly.
"The di arributmn of tay3ih
illumination in a room,'" he says
"is likely to be better when cven
plain glass is used in the windows
than when no glass is used, but the
improvement is much greater with
some varietie3 of figured or pr=:-
matic glass.
"The reason is that rays of ligh
passing through such glass are bent
and diffused so more of them reach

WEST ORANGE, N. J., Nov. 2.-
Thomas A. Edison is trying to bring
aviation out of the fog.
He has been experimenting v:7 u>
rockets to circumvent flying's great-
est enemy. His rockets would give
off light by night and a black
smoke by day to locate airports and
determine the depth of the fog.

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THEATERS.
Majestic - Grant Withers, Sue
Carol, Tully Marshall in "Dancfig
Sweeties."
Michigan - William Haines in
"Remote Control."
Wuerth - Bert Lytell and Patsy
Ruth Miller in "Last of the Lone
Wolf."
GENERAL.
Michigan Union-Special Thanks-
giving dinner in cafeteria.
M i c h i g a n League - Special
Thanksgiving' dinner.
FRIDAY.
THEATERS.
Majctic - Grant Withers, Sue
Carol, Tully Marshall in "Dancing

Sweeties."
Michigan - William Haines in
"Remfote Control."
W uerth --- Bert Lytell and Patsy
Ruth Miller in "Last of the Lone
Wolf."
GENERAL.
Lydia Mendelssohn t h e a t r e-
Memorial meeting of University
Senate in honor of President Emer-
itus Harry Burns Hutchins, at 3
o'clock.
Hindustan club-General meet-
ing, 8 o'clock, Lane hall.
Exhibit-Small American sculp-
tute, 9 to 5 o'clock, north gallery,
Alumni Memorial hall.
Pan-Hellenic ball-At the Michi-
gan League, 10 to 2 o'clock.

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"It seems to me that aviation Ithe back of the mom

can't see the mountain for the
mole-hill," lie remarked in stating
his belief that the solution of the
problem was much simpler than it I
appeared.
Radio too Delicate.!
"Radio, at the present time, is
a bit too delicate for fog work," he
said in disproval of the radio baa-1
con for blind flying. "I personally
prefer to work up something much!
more simple, involving, perhaps,
sight or sound." Edison disclosed
his experiments in a talk with
Richard Aldworth, director of New-
ark Airport. Among other things,
the inventor asked:
To Try Sound Signal.
What color are various degrees
of fogs? How soon before you
emerge from the fog does the color
lighten? How does it look from the
top? If you know the depth of the
fog, can you land safely?
On the subject of sound as a
guide to blind flying, Aldworth said
the drone of the motor would
drown out such signals.

"Some kinds of glass," Professor
Higbie says, "mounted in a particu-
lar way in the windows may in-
crease the minimum illumination
to a value distinctly higher than it
would be without any glass, perhaps
10 or 20 percent greater."
Increasing the minimum illumi-
nation means better lighting of the
darker parts of the room. In effect,
the glass transfers daylight from
near the window, where there is
more than enough of it, to the rear
of the room where it is most need-
ed.
"It appears," he adds, "that the
combination of prismatic glass in
the upper half of the window with
clear glass in the lower half can
give practically as good results as
if prismatic glass were used entilre-

Reservations for the
Ball Breakfast, sjiould
I di t tx

ilk

III

Prof. H. H. Higbie (inset) of the University of Michigan has found
cer tain types of windows diffuse more daylight in offices of skyscrapers
(right) than ordinary glass (left).

Pan-Hellenic
be made im-

ly.
"Glasses which deflect, scatter or
diffuse appreciably the light rays
that come to them from a restrict-
ed sky view, as in a window facing;
walls or other obstructions, and
which thereby improve the distri-
bution of illumination in the room,
have the effect of pulling down the

skyline or of elevating the win-
dows to a location not so far below
the top of the obstruction."
In experiments it was found that
dirt on windows cuts off at least j
20 to 25 percent of the light, per-
haps 50 pefrcent or more, if win-
dows are riot washed oftener than
once in four months.
employment bureau for the relief
of unemployed Ann Arbor residents
Tuesday morning, a total of 110
persons had registered.
At noon yesterday 93 more names
had been added to the list, bring-
ing the total t6 203.

sk t-Am a%" f -

A limited number of group parties
can be accomnxoclated at the Huk
rangig from twenty-five to. fifty

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A N ARBOR NEWS-BRIEFS


persons.

Radio Today.
Prof. George Granger Brown,
of the chemical engineering de-
partment, will discuss "Auto
Fuels" this afternoon during the
University radio hour. Professor
Brown, for a number of years,
has engaged in research work in
an endeavor to improve the
quality of gasoline for automo-
bile fuels. The Midnite Sony
quartet will provide the musical
program.

Local Football Ticket
Sale Estimated at 200
Incomplete reports of charity tic-
kets for the Michigan-Chicago foot-
balf game show a total of approxi-
mately 200 tickets sold in Ann Ar-
bor, according to an estimate made
by Mayor Edward W. Staebler yes-
terday.
Although several of the organ-
iz.tions which undertook to disposef
of the tickets have not as yet,

handed in their reports, a partial
check shows a total of 162 tickets
soild, which is enough to make Ain
Arbor and Washtenaw county eli-
gible for a share of the proceeds,'
since only those counties wherej
more than $100 worth of ticket
were sold will benefit by the drive.
203 Jobless Register
Less than half a day after the
inauguration of Mayor Staebler's

adies'

G;entlem~en's

-Mike Fingerle

HATS
Any Felt Hat thoroughly Dry
Cleaned and Styiahly Reblock-d
49c
SERVICE
VALET SHOP
117 South Main Street
Next to Walk-Over Shoe Store

i nrerl oeria

I

ST[PPUNG UNTO1%Af MODERN WORLD

117-0

., I

They shut the door on hybrid styles

college years, in which you can have such a space.

Quantity production of equipment has long
been practiced by the telephone industry.
Telephone designers years ago shut the door
on many hybrid styles-seeking first to work
out instruments which could best transmit the
voice, then making these few types in great
quantities.
This standardization made possible concen-
trated study of manufacturing processes, and

steady improvement of them. For example, the
production of 15,000,000 switchboard lamps a
year, all of one type, led to the development
of a highly special machine which does in a
few minutes what once took an hour.
Manufacturing engineers, with their early
start in applying these ideas, have been able to
develop methods which in many cases have be-
come industrial models. The opportunity is there!


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