New-York tribune. [volume] (New York [N.Y.]) 1866-1924, 1914-12-13

~ NE night late in November. a year
ago. those stationed at the receiving
apparatus of the great government
wireless station at Arlington, near
Washington, whose postofhce is Radio, Va,
heard regular click, click click, on their IN
s+ruuent 1t was as regular as clockwork, and
they compared it with the beats OF the Wash
ineton standard clock In fact, the clicking
Of the instrument was the registration OF the
movement Of the pendulum of clock. The
timepiece was 1881 miles away and great
sea heaved between. They were listening to
the ticking of clock in Paris
These time beats, heard in the still watches
OF the night, told greater story than that OF
the successful transfer of clock tick across
the Atlantic through the air. They marked
the accomplishment of project for practi-
cally instantaneous transmission OF standard
time and represented the expenditure OF
great deal of time and thought This achieve
rnent, involving the cooperation OF French
scientists and the government, has been called
great undertaking.
A few days ago the conclusion OF the work
of which those clock beats OF year ago
were a part was announced at Washington.
After long series Of tests by independent
commissions OF French and American scien-
lists exchanging posts OF observation from
time TO time to determine by the use OF radio
telegraphy the difference in time between
Washington and Paris, it has been announced
that the difference in longitude is hours II
minutes and 36.65s seconds 1t is the first
time that differences Of longitude have been
IL e tA1e NV
The tests were conducted from the Naval
Observatory and the Paris Observatory, the
EiHel Tower wireless station being employed
by the latter. The signals were transmitted
at a speed of approximately l75,000 miles
second, or slightly slower than the speed
of light.
RECORDS MADE ON FILMS BY MEANS
OF CIRCULAR MIRRORS.
Records were made on long, moving photo
graphic films by means of circular mirrors,
the size OF dime, which vibrated sixty times
a second, throwing fash of light upon the
film with each vibration The mirrors were
actuated by the wireless impulses received
from across the seas. Thus was provided
record much more accurate and exact than
could be made by listening at re-
ceiver and pressing electric key. BY this
means it has been discovered that a wireless
message can be received from Paris and the
circuit completed back again, distance OF
1862 miles. in less than one-hfth OF a second.
The speed is much slower by cable, being ap-
proxinately one-ninth the speed of wireless.
The clicking of the instrument on that No
venber night a year ago was tangible evil
dence OF the successful hooking up OF part
Of project, worldwide in its conception,
for sending the time to navigators, explorers.
surveyors and jewellers wherever they may be
upon the surface Of the globe. If ever another
Stanley is lost in Africa. or another Scott
stranded on the Antarctic Continent, and ne
has included a wireless OUTFIT in his lug
gage, by stringing j, up to tree or the South
Pole perhaps he get into communication
with the outside world. No one dares to say
that this is an inpossibiliy. .-.