River Falls journal. [volume] (River Falls, Pierce County, Wis.) 1872-2019, 1891-08-27
m THE ELECTRICAL WORLD.

The total mileage of electric rail-
ways in the United States, March l,
was 2, $50.
An expert electrician insists that
an electric train, making 125 miles an
hour, would require 1000 feet in which
TO come TO standstill
in the new Anglo-American tele-
phone cable the four cores are wound
around each other in spiral or strand
to obviate the effects of induction.
AS pendant to the opening of tel
ephonic communication between Paris
and London preparations are being
made for creating similar facilities of
intercourse between Berlin and Vienna
The national powder mill at st.
Medard-en-Jaile in France has recently
been lighted by incandescent lamps and
is believed to be the first mill of its
class on the continent to use electric
lighting.
1t is quite likely that the executive
board of Rochester, n. Y, will decide
to operate all of the lift bridges over
the Erie canal in that city by electric
power. 1t is estimated that the neces-
Ndh NC AhSbdAASo III
S35, 900.
Great interest is being mani
tested by the citizens of Washington in
the successful trial of the Edco electric
car, which is moved by a storage bat
terry called the ''accumulator. The car
moves steadily over the track and at
very rapid speed when desired. 1t will
be success.-Inventive Age.
AT the last meeting of the Physical
Society in England an electric lamp
was exhibited which lighted itself when
darkness came on and extinguished
itself when daylight or another strong
light was brought into the field. The
lamp is worked by a selenium cell on
the principle that the strength of the
current varies with the intensity of
light falling on the selenium.
Two years and over must elapse be-
fore the worlds fair will be thrown
open to the public, says the Western
Electrician, and yet hundreds of appli-
cations and inquiries for space have al
ready been received by the electrical
department This fact is significant as
giving an idea of the magnitude of the
coming display, which is sure to sur
pass any exhibition of the kind ever
given.
The electric lighting of Pittsburgh
is about to be increased. There are
about 900 arc lights distributed over the
streets of the city, but that number has
for some time been great deal too
small, owing to the rapid growth of the
city. To supply this demand the de-
partment of public is now making ar
rangements for an increase of 100 arc
lamps, which are to be placed on the
thoroughfares of the south side of the
city.
According to S. Il. DeFerrant's last
report on his work at Deptford, Eng
land, the distribution of alternating
currents with primary pressure of TO-
600 volts is now demonstrated success.
Four Ferranti concentric mains having
a total length of about % miles, now
connect the London system with Dept
ford station. These conductors have
throughout their entire length as many
as 6, 500 Joints, and it is stated, are in
daily service under pressure of 10000
volts.
"A Washington Star reporter has
been interviewing a matchmaker of
that city in regard to the effect of cleo
tromagnetism on watches He was
told that imagination was the principal
factor in the case of electric railways.
There is not one watch in 1000, 600,
said the matchmaker, that is affected
by the current on an electric street-car.
of course there are plenty of cases where
watches have been magnetized by dy-
namos and other electric machines, but
l do not believe that the current OF
street-car line can possibly effect
watch. Some watches you can not af-
feet at all by electricity, while Others
go to pieces, as it were, as soon as they
are brought within ten feet of dyna-
mo-"