The Republican. [volume] (Oakland, Md.) 1877-current, 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 DIR.
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 are thatcyclones of great
intensity are ascending spiral whirls OF
wind having rotary motion in direc-
ton in the northern hemisphere oppo-
site to the movements of the hands of
watch.
1t has been calculated by H. 0.
Tumlirz that the light reaching the
pupil of the eye in each second of time
represents a quantity of work which
would require one year and eighty-nine
days to raise the temperature of a
gramme of water one degree centimeter
us degrees Fahrenheit.)
Scientists say that the duration OF
lightning flash is not infinitesimal, but
that the flash lasts measurable time.
For example, if one sets 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,
IeAowing the negative to haye moved
l,,r N Hoch
istence.
A movement is begun in Germany
I to utilize to greater extend the banana
fiber, which extends the entire length
lof the branches plant, and is capable
lof being divided into threads Of silky
ineness. In Central Africa this fiber is
ried and used for shoe-strings and for
ords ind ropes, but it is believed that
il coud be used in various manufac-
ttres, the same as cotton, hemp, flax
and similar plants.
Twp Improvements in tho mechan-
ism of musical instruments are reported.
The frs of these, an invention of Herr
Emil Obricht, a pianist, of Berlin, IS a
scheme br raising the white keys of
piano to the level of the black, or, ii
necessar,, a 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 LANCE, mu'
stefan of Wiesbaden.
Experiments to prove the virtues OF
salt in keeping farm crops in 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 heritage generally.
"A paper goods manufacturer 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.
4L&bey closely resemble the ordinary
wooden handles, but ara said to be more
durable than the latter, and have the
added advantage of never splitting
when driven into sockets, as the paper
I will yield more than is possible with
wooden handles Ths bore of one-six-
tenth inch may be increased to three
fourths inch without injury to the
hnr