The Ohio Democrat. (Logan, O. [Ohio]) 1886-1906, 1892-04-09
IN TIE eLgoTnloAL WORLD.

Recent delicate experiments with
kites show that the amount of eloo-
tricity in the mir is proportional to til"
height above the eorth's surfnce
galvanometer plnced in the circuit
showed at once the changes in eleva-
tion, or whether the kite was rising or
falling
Many valuable high mountain
mines. which could not be worked
profitably owing TO the expense OF
transporting fuel TO the engines, 2rs
now being operated by electric motors.
whose power is furnished by anothey
motor in the valleys which uses water
power
An electric system OF heating rail-
way cars, used on French lines pro-
vides for the use Of lead gratngs OF
! high resistance, through which a cur
rent from dynamo is passed The re'
sulting heat Is transmitted to radiating
coverings with which the lead gratings
are provided, and is thence diffuss9
through the car
An electric corporation in Oregon,
where coal is dear, has had recourse to
sawdust and sawmill refuse for use
under its steam boilers, and so success
full has the experiment proved that nos
only is light and power furnished as
demanded, but arrangements have been
made to supply power for the opera
tion of two street car lines
The longest electric railway in the
world is to be constructed in Russia
The very audacious project is being
considered of constructing line from
st. Petersburg to Arllangel, a port OF
the White Sea, distance of more than
800 lSilometers (40S miles,. The eleoi
trio current is to be furnished by So
ries of generating stations, distributed
along the line. .-Puris La Nature.
The electric railway from Worces'
ter to Spencer, Mass. is said to have aas
ready proved itself q financial success.
1t is operated by the Worcester, Leices.
ter & Spencer Street Railway Co., and
was opened for travel as fur as Leices-
ter August IS, and to Spencer two
weeks later. In the first so days over
81, 900 passengers were carried, and i'll
two months from the date Oi opening
the number had run up to over 100000
An electrical exhibition is to be
held at ST. Petersburg, Russia, which
will be opened the middle of December,
and will close March 49, 1899 The ex-
hibition buildings Will be located in the
center of the city. For the first time in
the history of Russia foreign firms have
been granted the imperial permission
to exhibit The principal object of the
exhibition is said to be to enable the
Russian government to choose the best
system, with the view to the inaugur-
alton of comprehensive electric light
ing schemes in the principal towns OF
Russia
-Ploughing by dynamite is the new
est thing in agriculture Mt the south.
The dynamite is put into holes two or
three feet deep and five feet apart,
making 800 to the acre. and the whole
are connected with wire leading to an
electric battery. When these are ex-
| ploded by the electric current the
ground is lifted in many places two or
three feet and the soil to the depth OF
80 inches is thoroughly loosened, as
well as between the holes. This
method is said to be more effective than
the usual method of trenching, and TO
allow of greater absorption of moist
ure, which is so essential for sustaining
vegetation during drought
One of the important recent inven-
tions in connection with electric street
railways is the Shaw radial truck, by
the mechanism of which the DETECTION
of the forward truck from straight
line-that is, on curve. is communi-
Gated lnversely to the rear truck, caus-
ing the latter to assume a position on
the line OF the curve, be the radius
what it may. This is effected by a
simple, yet ingenious mechanism, con.
sisting of twJ parallel bars attached Az
one end to the forward truck, and at
the other to a vibrating lever central
between the trucks, the latter being
again attached to the rear truck by two
diagonal ars which cross each other.
This is an important invention, for,
while it will save most of the wear and
tear of rails and machinery in roun2-
ing curves, it will also call for munh
less power to effect that object
The members of an English mining
institute recently paid visit to the
Mechernich lead tnine in Bru uSsels. Not
only is this electrically lighted, bat
current is used throughout for ths
economy of labor The enormous quau
tity daily raised surprised the visitors,
This over three thousand tons daily,
and so perfect are the automatic ar
rangements that only twenty five hands
are required for the output. One clever
electrical appliance attracted particular
attention, and will doubtless soon be
generally adopted in English mines.
When wagon OF ore is tipped at the
shafts mouth electric contact is made
in the tipping and small needle in
the Office makes n red mark on band
of paper revolving By clockwork. Tho
object of this is not SO much to give
automatically the number of wagons
tipped as to show at glance that the
hauling is proceeding regularly.
AN INDIAN HUGBAND.