Clinch Valley news. [volume] (Jeffersonville, Va.) 18??-2019, 1890-05-09
POPULAR SCIENCE.

Five hundred volts OF AN electrical
current is considered dangerous to human
life, but death depends largely upon
physical conditions.
NJ, Telcgraphing- from moving train is
accomplished through 4 circuit from the
car roo, inducing asouFrent in the wire
or poles along the track.
German chemists have discovered in
the cocoanut u fatty substitute for butter
and this new product has begun to bc
manufactured on Il large scale
The new United States steam cruiser
Philadelphia will have two electric light
plants of the most approved pattern, and
the most compact system adapted to
marine work.
Mods for casting iron can only be
made i'll sand. Iron or other metallic
molds chill the iron, and it does not fill
well. The great heat at which iron mclts
will burn any other material, or will stick
SO to break the mold. G q B
The oldest medical work. an Egyptian
papyrus dating from 1900 years or more
before Christ, and containing prcscrip-
tons then old, has been translated by
George Ebcrs, the German novelist.
y French chemist believes himself
able to tell whether assoi is deficient in
PHOSPHORUS, potash or nitrogen by the
shade of green OF the vegetation. The
leaves become ycliowish when nitrogen
is lacking.
y new botanical garden in the ..lp; of
NDilIs = s.tl .
about 200 feet high, At an altitude above
Sea level of more than 5000 feet. Plants
from all the alpine regions of the globe
will be cultivated.
The supposed oldest pieces of wrought
iron III existence are sickle blade found
near the Sphinx, near Thebcs; a blade
found imbedded in the masonry OF the
Great Pyramid, and piece OF Il cross.
cut saw exhumed at Nimrod, all of which
are now in the British Museum.
There was Mt the. Paris Exhibition a
coal digger worked by an electric motor
by its aid Il man and helper can under
cut ITO tons of coal in ten hours. in II
seam six feet thick. and the power re.
Iured for this ut the p;tliead is little
over two and oue-ha!f horse power.
y German doctor has made m alarm.
ing discovery about cancer. The disease
attacked Il tame rat in his possession,
and having no p,nms of conscience
about viviscction, he tried, successfully.
to inoculatc two others with it. they tax
ing the disease in its malignant form.
The latest report states TINT twcnty.onc
obscrvatories are now engaged in the in
tcrns tional undertaking of pho;ographinn
the entire heavens. Each observatory
will have 10 take about 700 photographs
in the zone assigned to it, and it is
hoped to finish the work in three or four
years.
The new artificial silk made of cotton
or the sulphitcd pulp of young wood
treated with nitric acid and then dis
solved in a mixture of ether and alcohol,
is said to have density, breaking strength
and elasticity that compares very favora
bly, with natural silk, while surprising it
in luster
Professor orion, State geologiss of
Ohio, says officially that the natural .ras
supply in the now famous field in the
northwestern part of that State will not
last for ten years. In the eastern part OF
the State the supply has been so nearly
exhausted that the manufactures have
been compelled to return to the use of
coal.