The Fairmont West Virginian. (Fairmont, W. Va.) 1904-1914, 1909-06-07
2.ok.1 4 IA DEi F0REsJi.. 3
The NEW WIRELESS.


Every school boy knows tat Il he
places several marbles in a row and
strikes the marble at one end Of tac
line, the one at the other end will roll
away, although all on those interyen,
ing remain at rest. The theory Of
wireless Is based to a very great ex.
tent upon just this principle, the mole.
cules Of ether transmitting energy
from one to the next and SO on, jus!
as a blow is felt by the end marble, no
matter how many intervene.
Picture a man standing upon q
bridge with MS arm full Of bricks. Tn.
der the bridge is a second man, to
whom the first wishes to commune.
cate an Ineligible signal, advising
him whether to stay under the bridge
or come out. II brick is dropped
into the water It sends circle Of
waves which can be noted by the man
below, The dropping in Of two bricks
one after the other, might he one sig.
nal, while the dropping OF three bricts
at intervals would be another. In this
way It would be possible for the two
men to devise code which would rep.
resent the alphabet, each signal de.
pending upon the number Of bricks
dropped within a given time, or the
number dropped in succession, fol.
flowed by pause, or the dropping Of
more missiles. This represents in a
pictorial way the transmission OF wire.
Cess messages as 1t was done prior 10
the invention of the Radio sparkless
Wireless Telegraph.
Nov draw a picture of this newest
Invention in the art o: wireless. Sup
posing that, instead of an armtul Of
bricks, the man above the bridge has
"a bag Of sand. This sand is permitted
ITO run out in a small stream through
minute hole in the bottom of the sack.
As the grains of sand strike the wa.
ter, there is very little splash, and
the waves that circle out in all diTec.
ltions are ever so much smaller tlan
those caused by the dropping Of the
brick, but impelled by the waves
caused by the continual stream Of
sand, tnese waves go just as far as
the others. In order to note these
waves, the man beneath the bridge
places a small chip upon the surface
of the water. While the sand contn-
ues to fall from tae bag, the chip
will be forced up and down by the
movement OF the water. II the man
above places MS finger over the hole
tn' the bag and stops the stream OF
sand, the motion Of the chip will cease
TO be energetic.
The man below would read his Sig
mails, not by the waves made by the
falling of the. sand, but by their in;
kerrumion for an instant. Thus IN.
stead Of dropping brick, the bridge
operator merely places his finger
over the hole in the bag to give the
signal to the man below. He could
do this almost hundred times as
fast as he could go through the other
performance.
Briefly. the old system of wireless
depends for a signal upon the crea-
ton Of wave strong enough to ne
percepHble at a distance, while the
new parkless telegraph sends out a
continuous disturbance whose inter
ruption for an instant causes the
Of the signal; consequent
ly, only. fraction Of the energy Is
in the latter method with |
none Of the disturbance which is nee
,essary to the operation Of the old
system.
This interruption can be made by |
a machine Transmitting system which |
will do the work Of several hundred
operators in the same time. VITA the
event Of the new system. close tuning
becomes possible, and success has al.
ready been attained in transmitting
severel messages at once over the
same general apparatus. Thus, mnl.
Hiplex transmission allows several ma
chimes, each a hundred times more ef.
,ficieut than the average Morse opera
tor, to operator over a single antenna
wire, making wireless Infinitely cheap
pr and more direct than any wire sys.