The Indianapolis journal. [volume] (Indianapolis [Ind.]) 1867-1904, 1899-04-03

the circuit. In this manner dots and dashes
are made to correspond with the Morse
alphabet used in continental countries.
The receiving instrument Is a combina-
ton of the telephone Jingle bell. the tele-
graph sounder and the stock ticker The
current influences these contrivances stimuli
taneously after first passing through an
induction bulb so delicately sensitized that
the sound waves made by the sender are
made To oscillate through the glass The
message may be recorded by the bell or the
Geographic sounder. but If these instru-
mentS should be out of adjustment the dots
and dashes are recorded OH the tape.
The sending and receiving instruments
must be In perfect alignment OF the whole
system will be found 10 be out of tune.
a vertical wire has been used by Professor
Ma-coni with success. The idea il about
the same as If two telegraph poles at a
distance of mile. were extended In height
TO five hundred feet They would rise Tar
above surrounding objects and two men
using the Narconi apparatus could send ard
receive messages readily. once they SUI
eeeded in getting a perfect range on each
other. Thus. the captain of ship at sea,
II in distress. could place a MarcOni instIu~
ment at the masthead and by slowing re-
Volving IL to sweep every point OF the com
pass. might get into communication with
another ship similarly equipped. for as soon
a. alignment reached the bell on
the distant ship would ring, notifying those
on board that communication was sought.
Professor Marconi Is going to the United
States later i'm the year to cOnduct expert
merits. THE connection of England and
fcicGraphy." he said. lis no dream. II is
among the scientific possibilities Of the near
future. OF course. there difficulties to
he surmOunted first. but they are not so
great as those that have already been over
come One such difficulty is the height of
the poles which il would be necessary TO
erect at either side of the Atlantic. In the
present stage Of the system those poles
would have TO be from LOO TO 800 feet
high 20 clear and overcome the intervening
curvature OF the earth. But improvements
IN the apparatus will diminish this require
ment. and i am now at work with that
end in view. When i first started line
OF only eight miles between the Isle OF
Wight and the mainland IL was necessary
10 erect poles 40 feet high, but now it has
been possible 10 reduce the elevation OF
the in ruments to forty feet.
II ala going TO visit the United States in
October in order to show the American
people the practical results Of wireless
biography. IL is for communication at sea
or between sea and shore, whether for naval
mercantile ends. that the wave method
Il likely TO be found most useful at first.
Fitted up with the proper instruments each
ship becomes a telegraph station. with the
means for instant communication with
either another ship fitted or stations
ashore at distances up TO at least thirty
miles. To establish such stations along any
coast would be an easy matter. The adj
vantages of IL are obvious, especially in re-
gard to stations at points where ships are
likely to be driven ashore by storms. For