Ceredo advance. [volume] (Ceredo, W. Va.) 1885-1939, 1892-08-10
IN THE ELECTRICAL WORLD.

Recent experiments IN France on
the velocity of propagation of electric
waves give mean velocity which is al
most exactly that of light.
by order of the commissioners of
the District OF Columbia all the thea
ters in Washington must be fitted
throughout with electric lights.
Tests recently made at Cornell uni
vcrsity show aluminium has no very
marked influence upon the magnetic
conductivity of cast iron, but slightly
decreases its permeability.
Poison is perfecting photographic
clock which is destined To surpries tardy
visitors. 1t can be set at any hour
say eleven p. m. When the hands in
uicatc this hour, the visitor is startled
10y hearing n voice from the clock pro-
claim, time for bed. time for bed! 20
home"
Tie latest electric carriage inven-
tor halls from Boston and has manu-
featured n two-seated vehicle. with "A
motor on the front axle and storage
batteries under tho seat lie claims
his carriage can run sixty miles with
out recharging the cells, whose normal
discharge is hfty-dve ampcres at forty
volts.
The question of an antido,c for an
electric shock is now being agitated.
An amateur Investigator is reported TO
have found that the insertion OF arom-
attic spirits of ammonia into the body OF
bird which had received n shock
brought the animal back 70 life after
all signs OF animation had disappeared.
The subject affords good field for in
vcstigation.
Though NJ present it has not been
found possible entirely TO remove or
gonic matter from water by means OF
electricity, it has the power To reduce
such matter apprcciably, and now "A
Russian physician asserts that the
pain of neuralgia, if superficial, can be
relieved ut once by throwing beam of
light from n bright are-light upon the
affected part.-English Mechanic.
"A new controller for railway mo-
tors which does away to n considerable
extent with the use of independent or
wasteful resistances on cars carving
two motors has been brought out by
the Thomson-Houston Co II operates
by shifting the connections of the two
motors from series TO multiple so that
for slow speeds they will be in series
and offer in consequence higher re-
sistance and counter electro motive
force while for high speeds they arc
connected in multiple in which condi-
ton highest speed and power are OBJ
tainable with equal economy.
About ninety seconds before noon
of each day in all the police stations Of
New York city there is a peculiar little
tap given on the telegraph wires, which
calls the sergeant, or officer in charge
OF the station, TO be on the watch. and
see If the clocks have the right time
When these taps are given, the clock is
watched. When the ball drops on the
tower of the Western Union building.
the operator who is watching this calls
Time" and instantly the keys that
connect with the building, north, south,
east and west, tap out the timc-signal,
and the clocks in every station house
are set.
"A Lansing, Mich, man is said to
have invented system of train light
ing by electricity in n successful and
economical way. The generator is at
tached 10 the forward axle of the loco.
motive. The armature is fastened to
the axle and revolves with il in contact
with the other parts of the DYNAMO.
which rest upon roller bearings Mt the
end of the cylinders. The machine, it
is said, does not weigh over 500 pounds.
and Is protected by an iron jacket Con-
nections with the cars to be lighted are
made 10y couplers. The lights are in
candescent, and sufficient current is
stored in small secondary batteries in
the cars lighted. The headlight of the
locomotive is also supplied from this
source, and the cost of the system is
said 20 be less than that for the ordi-
nary lights now in use on railroads.