The St. Mary banner. (Franklin, Parish of St. Mary, La.) 1889-1931, 1908-05-23

The wonderful achievement OF VAL
demar Poulsen, chronicled in the
newspapers of the world few days
ago, Of carrying on conversation by
wireless telephony between Lyngby
and Weisensee was the result of years
Of experimental work, writes the Co.
penhagen correspondent of the New
York Times. Mr.. Poulsen, assisted
by a STAFF OF Danish engineers, has
been at work for a long time in un.
dertaking to make telephoning by
means OF his undamped and continu-
GUS waves practicable and useful in
commercial transactions.
When Mr. Poulsen had about fin
ished his work with the wireless
telegraph he had become convinced
speech through the air was possible
and at great distances, if he could
construct an apparatus for transmits.
sion and recording sufficiently strong
and powerful. He began experiment.
ing at once at his wireless station a.
Lyngby, five miles from Copenhagen
and demonstrated that wireless tele.
pboning could be carried on over con.
siderable distances without losing
anything in clearness and distinct
ness. Having made this demonstra-
tiOn, Mr.. Poulsen undertook to i'm.
prove his apparatus, and almost every
day increased the length CT the line
over which he held conversations
with his assistants.
Finally, last week he had come to
have so much confidence in his sys-
tenn that he undertook the risk OF
trying to speak over a distance Of
$50 English miles-that being the dis
lance from Lyngby to Weisensec.
near Berlin. When Mr.. Poulsen at
his station at Lyngby clearly heard
the voices of his assistants and I'M
derstood distinctly all that they were
saying to him from their station a:
Weisensee, he was overjoyed There
was perfect exchange of converse
ton between the two stations.
The difference between the spark
ling wireless waves and Mr.. Poulsen's
undamped wireless waves accounts
for the great result which MI. Poul-
sen has achieved. Mr.. Poulsen him
self defines the difference as follows:
The wireless sparks are to be com.
pared to the shell from big gum
When fred, you get an enormous
blow like that caused by an explo-
sion, but the force of this blow Is
lost after short time. The undamp-
ed waves produce q sort of singing
Of enormous rapidly, and
they 60 on their way around the
globe with the same force as that
with which they leave the transmit.
ting apparatus.
Nothing can stop them, net even
the highest mountain. They canno.
90 through the mountain, but they go
singing over 1t, and then pass along
until they reach the receiving appar-
atus to which they are appointed.
1T will be easier for the waves to
cross the Atlantic, and of course the
North Sea, than to go from Weisen.
see to Lyngby. The station at Lyn.
gby is unfortunately situated for
wireless telephone conversation, es.
pecially with the station at Weisen.
see, which also is badly situated and
equipped"
Valdefnar Pculsen, who is only 80 |
years old, is the son OF Judge in
the High Criminal Court Of Copen.
hagen. He is very modest man
and has not as yet developed any
business in his telephone work. He
Is singularly silent man, but when
my one expresses an interest in his
work he is willing to explain 1t to
him to the best Of his ability ami
With never-failing enthusiasm.