The farmer and mechanic. [volume] (Raleigh, N.C.) 18??-19??, 1914-09-01

fng 10 ~ ldIStlJ oil dCiopldiiC III
WIRELESS" war. That his prediction
has been fulfilled. to a degree at least
i. shown in the reports of the fight
ius before the town Of Liege, in Bel
,iuu. in which are given |
of the deadly accuracy of the Belgian
aunncrS. who eXtcrminated company
after company of the enemy without
even seeing them, the guntire being |
controlled by a%eroplanes equipped
with wireless apparatus, says an ar
ticle in the Washington Star.
These machines wOuld fly about the
Germans as they laborOusly made
their way over the field, and. observ-
ius the positions Of the various regi-
ments. would telegraph them to the
forts. and then a hail of shot would be
poured upon the advancing men.
Thus "A new terror has been brought
into modern warfare-the airship
which carries wireless apparatus. The
airship may be shot down if it is 50
incautiouS as to get within range of
the enemy's cannon, but not before
the occupants have telegraphed the
information that they have been sent
out to get.
Permanent Communication.
In another way has wireless teleg-
raphy come to play a Vastly iTnpor-
tant part in modern warfare. An
army is heavily dependent on it's
sources of comnunication-for orders,
for news of the location Of the enemy
and for news Of its own successes and
defeats.
Formerly telegraph and telephone
lines had to be strung across the COun
try as it advanced and these lines a
tu be guarded, for interrupted COM
munication meant disaster.
The cutting of calls and telegraph
lines was often the chief object Of
scouting expeditions. Not more than
a few weeks ago the cables connect
ing Germany to the rest of the world
were cut. and how. until wireless com
muniCation with that country is com
menced. no one tell how things are
guinS there.
with wireless equipment in its pos
session. however, an army need no
longer fear the interruption of its
communication system. In a few min
uteS a wireless set can be erected and
III a few minutes more be in I'VE
Sation with the headquarterS-twenty-
five, fifty, one hundred or even one
hundred and fifty miles away. Or
ders can be received, the report Of the
days work transmitted, and in a few
minutes more the set is taken doWT
and the army is again on the march.
Nothing can stop the electric waves
nat are flashed from the aerial
wires of a wireless set. over land OIL
sea, through towns and over hills
they travel with the speed of light t.
their destination and are caught III
and understood by the skilled opera
tors. No fears of broken telegraph
lines. of raiding cavalry attacks OIL
the guards along these lines. neet
the modern general have; his wire
less equipment is always ready an'
always sure.
Relies an WaVoS
Wireless telegraphy relies on wha
are known as electric waves TheS
are produced by the t~remendouSl
swift back and forth movement Of
quantity of electricity in a long wire
and this Oscillation" as it is called O
the electricity in the wire is produce
by special machinery. Suppose a site
Is stirred back and forth in a larg
pond Of water. A series of little wave
or rippies is sent out in all direction:
and a similar occurrence takes plaC
III a wireless set.
The electricity in the set surge
back and forth about 100000 time
per second. and as these surges occu
waves are sent out which travel wit
the speed of light.
a wireless set is ordinarily divide
INTO four parts: a sending set, whic
transmits the waves; a receiving 81
which picks up incoming waves;
number of long wires, which are pla'
Ell nigh up in the air casually uphel
on "A mast, known as the "antenna'
aerial wires, which serve to ser
OUT or pick up the electric waves. ar
ihtlly some form of dynamo whiC
produces the electricity for the sen
lng set.
Parts Simple and Light.
Ia military sets these parts must q
pe night and of simple constructio
ior they must often be carried Ov
rough country on mule or horse bat
Vt In automobiles. They must
easily erected in a short space of tin
ana be rapid and certain in the
usage.
The ingenuity which manufacture
= wireless sets a expended on mi
tafS and airship apparatus has be-
leiharkable. and it has been well I
paid III the results which wireless h
produced.
y number Of different kinds Of Sc
dIN In use in Eurnnoan nru,iaS a