Atlanta Georgian. [volume] (Atlanta, Ga.) 1912-1939, 1913-10-12

Continued From Page !.
stble for the person paying the money
Csupposing he or she is deaf to hear
as well as observe all that transpires
on the stage"
Bottles Up the Noise.
The secret of the wizards inven-
ton. which is 10 bottle up the noise OF
the world, is simple. The human ear
receives sound vibrations and dis
tinguishes them as sound up to
rate of 10000 per second. Beyond
that rate Of vibration there is no
sound TO the human ear. The aver
age vibrations of the street.-the
street hum or the street note-ls low.
at about 450 vibrations. Mi Maxim
with his silencer viii accelerate the
speed OF these vibrations beyond the
ear vibration speed limit. That car
ries them beyond the range of the
ear drum. In other words, you don't
hear them at ALL
A noiseless world, It is a large
order-one of the biggest ever-but
Hiram Percy Maxim is going to I'll it.
There is not the shadow OF doubt in
his mind that he can. The public
chortled ironically when the still
comparatively youthful inventor stat
ed that it might be possible to Danish
all sound when a gun was fired. 1t
was termed mere inventors dream,
but Mr.. Maxim took the bang out Of
big guns and little guns with his
widely used gun silencer.
Last week he gave a public dem
onstration in Hartford, showing how
easy IL was to take the chug out Of
an automobile The automobile 81
lencer was merely an enlarged gun
silencer attached in the place of a
muller. The machine went up hill
and down again a number of times
without sound except that made by
the rattle of the engine.
Important as Fresh Air.
TT is as important that we have
quiet as that We have fresh air" said
Mr.. Maxim. pulling up a chair in the
snug sun parlor, built on a front cor
ner of his house and running his
fingers abstractedly through his thick
gray black hair. And I'm going to
make the world quiet"
Now let me cite an example to
bring you and your readers nearer to
what I am getting at. The eye is
sensitive TO light vibrations within a
certain range But light exists be-
yond that range. At the foot of the
scale of the prismatic colors is the
indtstinguishable ultra red; at the
top is the ultra violet. 1t is possible
to take photographs with the aid Of
these ultra rays though they convey
no suggestion of light to our eyes.
The red Is too low; the violet too
high.
The universal silence is based
upon exactly the same principle APP
piled to sound. The car Is sensitive
to certain sound vibrations within a
certain range. Beyond that fixed
range we hear no sound though
sound exists there.
WHAT THE MAXIM UNIVER-
SAL SILENCER DOES Is TO
MODIFY SOUND VIBRATIONS so
THAT THEY ARE NO LONGER
AUDIBLE TO THE EAR.
This modification builds up. as L
were a screen of silence between the
ear and sound-that Is, the silencer
raises the vibrations of ordinary
noises above the range of hearing by
so increasing the sound vibrations
from those noises that they become
unbelievable to the ear.
Like Lamp-Sheds Silence.
II you raise the vibrations of the
street hum from 450 per second to 5O,-
Qe0 per second, then you can not hear
Inc noise OF the street. for, as | have
said, the normal ear can not detect
sound that produces above 10000 vi
brations to the second. My universal
sllencer raises the vibrations in ex-
actly this way.
1t Is little electric device not dis
similar to an electric lamp and like it.
| attached by cord to an electric plug.
| Instead of shedding light 1t sheds 3,
lence. Now when you go home. YOU
| press a button or turn a switch ana
get light, heat or air with your
| electric FAM.
Il am going to add to this list Of
utilities and give silence, secured by
| the same process, that of merely
pressing a button,
The silencer is perfectly practical
/ AS far as cost is concerned, ii will be
within the reach of all. | wish Il
| have II installed first in hospitals, and
for that reason my first public demon.
| stration will be in a ward of some
! large New York hospital. 1t will Gov
er the range of noises from the worst
, to the least troublesome. With a 81
| lencer on your table, you may live
| twenty feet from the thunder of the
elevated trains and never hear them
| when they pass. 1t will even be pos
sible to carry silence about with you
/ in your pocket on the street If you
wish to do So All that that would re-
qutre would be a small electric bat