The Ohio Democrat. (Logan, O. [Ohio]) 1886-1906, 1890-04-26
SCIENCE AND INDUSTRY.

"A method of expanding hoops and
wheel tires by heating them with the
electric current has been devised
Experiments recently made by DR..
Luderitz in the Berlin Hygienic Insti-
tute Indicate that all kinds of bacteria
are killed by coffee.
On branch road of the Canadian
Pacific, near Sudbury, Canada is a
nickel mine that produces more nickel
than the worlds market calls for. The
output is said to be 1000 tons annually.
The conclusions reached by modern
meteorologists arc that cyclones of great
intensity are ascending spiral whirls OF
wind having rotary motion in direc-
tion in the northern hemisphere oppo-
site to the movements of the hands of q
watch.
1t has been calculated by ii. o.
Tumlirz that the light reaching the
pupil of the eye in each second of time
represents quantity of work which
would require one year and eighty-nine
days to raise the temperature of a
gramme of water one degree centimeter
Q.S degrees Fahrenheit.)
Scientists say that the duration of a
lightning flash is not intinitesimal, but
that the flash lasts measurable time.
For example, If one sets Il camera in
rapid vibration and exposes in it plate
so as to receive the impression of the
flash, it is found that the impressions
appear widened out on the negative,
showing the negative to have moved
during tho time the flash was in ex-
istence.
"A movement is begun in Germany
to utilize to greater extend the banana
fiber, which extends the entire length
of the branchless plant, and is capable
of being divided into threads of silky
fneness. In Central Africa this fiber is
dried and used for shoe-strings and for
cords and ropes, but it is believed that
it could be used in various manufac-
lures, the same as cotton, hemp, flax
and similar plants.
Two improvements in the mechan-
ism of musical instruments are reported.
The first of these, an invention of Herr
Emil Olbricht, pianist, of Berlin, is a
scheme for raising the white keys of a
piano to the level of the black, or, il
necessary, little above them. The
other novelty is the Encouragement of
the holes of the bassoon, which is said
to make playing the instrument easier
and more satisfactory. 1t is the dis
covery of Herr Reinhold Lange, a mu-
sician Of Wiesbaden.
Experiments to prove the virtues of
salt in keeping farm crops in a healthy
and vigorous condition have been car
ried on extensively in some parts of
England, and the results lead to the
following conclusions: That dressing
of 1,500 to 1000 pounds of salt per acre
will check the rustin cereals, the finger
and-toe in turnips, largely protect oats
against the grub and wire-worm, check
the virulence of potato disease, and
dissipate fungoid growths in pastures.
1t is also preventive against moss,
makes rough grass more palatable, and
sweetens the herbage generally.
"A paper goods manufacturers in
Dresden, Saxony, is sending to the
trade in this country sample tool
handles made of paper. They are light,
and apparently strong and durable.
They closely resemble the ordinary
wooden handles, but are said to be more
durable than the latter, and have the
added advantage of never splitting
when driven into sockets, as the paper
will yield more than is possible with
wooden handles. The bore of one-six-
teenth inch may be increased to three
fourths inch without injury TO tue
band1a