The Calumet news. [volume] (Calumet, Mich.) 1907-1938, 1913-10-27
WIRELESS ON
EIFfEL TOUR
Subteranean Plant Located Be.
meath Famous Structure

OF 20 CNN. Ct tt tdiiiouo Iiii'A
Tower of Paris, the highest steel
structure Of it's kind i'm the worl I, was
about To be torn down several years
ago on account of its uselessness. To-
day it is regarded as one of Fiance's
most valuable possessions. The French
capital, because Of the Eirel Tower.
has become the wireless center Of the
world.
Underneath the Champ de Mars. IN
which the tower stands, q vast subter
ranean wireless plant has bean con-
structed, It's presence IL scarcely sus-
pected by the passer-by, for it's only
entrance is little more than trap
door In the ground, partly concealed by
n clunp of trees. But should he at
tempt to approach too near the little
iron staircase leading underground. he
viii find his way barred BY soldiers.
Transmit War Messages.
Below ground, amid a maze Of pass
ages, gigantic machines and a con-
tinual cracking and flashing of the
wireless, corps Of military engineers
and electrical experts are WORKING day
and night 10 perfect instruments on the
accuracy Of whose messages In war;
time may depend Frances victory or
defeat, and on which also will depend
the adequate cooperation OF the al
! lied army of Russia. II was In his
| laboratory here that Prof. Henri Alb.
raham, of the Sorbonne, talked today
| Of what his work IS a member OF the
! French Wireless Mission sent by the
government to Washington, will be
! Professor Abraham will not join his
colleagues until late I'm october.
During sur work at Arlington last
| 3pring," said he, we succeeded In CO
| operation with our American associ-
ates in establishing the relative time
of Washington and Paris within the
tenth of second Since then We have
been able TO improve greatly the re-
Giving and recording Of wireless mes
5ages. We expect now to establish the
line of Washington 10 within the
| aundredth of "a second. ana as a part
of this result the longitude of Wash
| lngton as related TO Paris France VIII
alter send missions to the other prin-
Cipal nations with the object Of estab-
! fishing Q similar accuracy In the rela-
tive times. Once this work Is accom-
plished, the world will receive time
signals from the Eiffel Tower aud will
ne able to register them to within the
hundredth of second.
Apparatus Is Accurate.
This effort for. accuracy to within
The hundredth OF second has required
a tremendous improvement in the
wireless apparatus and q great ad-
vance, in clock-making. Two of the
most important pieces of the equip
inent which we shall take to America
will be thermometers of such extreme
precision that after being set before
leaving France they are relied upon
not to vary appreciably during the
whole Of our time in America.
1--WE shall use photography in reg
. stering Eiffel Tower signals for fix
ng the exact longitude Of Washington
Ne arrive easily at an accuracy of a
hundrcdth part of a second by means
Of q film revolving at "A iiNcd rate o.
Ispced and luminous spot influenced
10y the wireless messages. In register
ing the speed of radio waves | have
succeeded Ia dividing the second into
10000 parts. Experiences so far on the
speed Of wireless waves tend to show
that they travel at the same speed as
light from which We make the import
ant deduction that they are the same
thing