Clinch Valley news. [volume] (Jeffersonville, Va.) 18??-2019, 1892-05-13
POPULAR SCIENCE.
a ton OF coal yields nearly ten thou.
sand feet of gas.


a ton OF coal yields nearly ten thou.
sand feet Of gas.
Poor sewerage is credited with the in.
creased death rate in San Francisco, Cal.
General Schofield has ordered that all
recruits entering the United States Army
must be vaccinated.
Tho standard gold coin of England
consists of twenty-five parts pure gold
and two parts OF copper.
A French scientist, NJ. Dronier, has
invented a new magnesium lamp which
burns for regular periods of twenty. four
hours without extinction.
Paper properly treated with chemicals
and then subjected to great pressure is
being used for flooring material and for
general use in building us u fire. resisting
substance.
A peculiar feature of strawberry color.
ing IS that whilst the berries in the open
mir ripen from the stem, extending to
the point, those grown under glass ripen
at the point first.
A great improvement in machine bear.
ings is made from compressed wood pulp
combined with graphite. No fabrication
is necessary, and the amount OF friction
is greatly diminished.
Photography of speech, or rather OF
the f1eeting expressions aud movements
OF the human countcnance during speech
is the latest Of the many triumphs of the
instantaneous process.
A race was won at Liverpool, England,
recently by horse that had undergone
the operation Of tracheotomy to cure
roaring. The fact that he had silver
tube in his throat did not seem to impede
his speed.
February, in 1900. will not contain
twenty pine days, although it will be leap
year. February, in 100. also contained
only twenty eight days. There is slight
error in the Gregorian calendar, but it
will only amount to one day in 1925
years.
A new material is being made by IN
English company which resembles leather
and India rubber, aud will he made into
boots and shoes, waterproof clothing aud
other similar products. 1t is known us
blandyte, but the composition is not
made public.
The difference in the length OF the
cables in the East River Bridge, Brook
lyn, N. Y, when the thermometer re-
gisters zero and when it registers 100 de-
grecs above, is two feet four inches.
The difference i'll the rope which hauls
the cars is seven feet six inches
7, |. 4.
water converted into steam with pres
sure of It's to 200 pounds in the boiler
to secure one horse power with triple
expansion engine. BY the use of one.
third more coal the pressure in the boiler
and the horse power can be doubled.
Recent statistics show that France has
525 learned societies, of which 1856 have
been officially recognized rs Of national
importance. OF the total number, nine.
tyt five are historical and social; ninety
five agricultural and horticultural; fifty
seven medical and pharmaceutical; forty
five scientific; forty-one artistic; thirty
seven geographical; and the rest miscel.
laneous, including Photographic, stats-
teal and ballooning associations.
So-callcd luminous clouds, which ap-
pear after the ordinary twilight glows
have faded, have been observed on sum.
mer nights since 1885, and have been
supposed to have some connection with
the Krakatoa volcanic eruption. They
are often seen in the same place on sew
eral successive nights, moving at a height
of more than fifty miles. They have
been noticed in both hemispheres, but
are now believed to be breaking up, and
thorough, systematic observation in
every part of the world is urged before
they have disappeared altogether.