Clinch Valley news. [volume] (Jeffersonville, Va.) 18??-2019, 1889-02-22
POPULAR SCIENCE.
Italy has discovered new explosive


Italy has discovered new explosive
Of tremendous power.
The surface of the enrth is thirteen
miles nearer 10 the sun at the equator
than it is at New York.
The steam pipe is not as innocent us
1T looks, and care should be taken to
surround it with proper safeguards.
Robert Stevenson, engineer, of Glass
cow, Scotland, is the last ono to claim
an invention which will drive ocean
ships up to forty knots an hour.
1t has been computed that tho power
required to drive the tenpeuny nails con-
tanned in a full key would draw wagon
load with ton of coal iifty-two miles.
A London physician says that no two
lives arc alike. One man muct DO tenn
perate and steady to live fifty years,
while another may BIO ever so reckless
and live to be eighty.
1t is reported that oil the materials
ncedful for the manufacture of the gen
uine Portland cement have been discov.-s
cred in Utah, and factory for its pro-
duction is to be established.
A New York physician recommends
the Jewish custom of washing hands '6e&
fore meals as preventive against typhoid
fever. He says that contagion can be
conveyed into the system by tho hands,
Most of the buhach grown in Cali
fornia is raised around Stockton From
it Dalmatian insect powder is made,
which retails at 81 per pound. The
Fresno Republican advises the farmers of
California to pay more attention to its
cultivation.
The yellow fever germ probably gains
entrance into the body by the respiratory
or alsmentary tracts, or through tho
surface of the body, or it is possible that
it mutiplies in insnnitary localities and
develops o volatile poison which con.
teammates the air.
When the rosewood tree is first cut,
the fresh wood eXhaes a very strong,
rosclikc fragrance, which soon passea
away, leaving no trace of the peculiar
odor. There are several varieties of rose.
wood trees. The best, however, ara
those found in South America and the
East Indies and ncighbcring islands.
The american Aaalyst has valuable
article on "Refrigcrating Risks" II
points out that not only is the favor OF
many articles of food injured by being
kept at too low n temperature, but that
some, eggs especially are rendered posi-.
tNOiy ihluiiouo, MiliOut SHOWING any
obvious change, by being preserved foi
length of time in low temperature.
Opium enters take the drug in every
variety of form. In the crude state the
gum is eaten or smoked. In the liquid
preparations the tincture is the most
popular; but parcgoric is n favoritc form,
especially with women, while the clixirs
are also largely used. Morphia holds
sway over large proportion of con-
sumcrs, either by the stomach or hypo.
dermicnlly.
The latest method Of increasing the
speed of vessels is screw which is so
designed that the center lines of two
following blades from spirals running in
opposite directions. The blades are so
curved that one has Its leading part near
the periphery, the other has it near the
center, so that each blade cuts into the
water in advance of the following. It
is claimed that greater speed results.
The pncograph is novel instrument
devised by Dr. Mortimer Granville an
English physician. 1t consists of deli
catcly suspended and counterpojsed half
disc, with an arrangement for moving
smoked paper under tracing needle.
When held over the mouth, the half disc
rises and falls with the breath. The
needle is thus made to trace wavy line
on the moving paper, and the character
of this line indicates the force, contin-
uity and duration of the expiration.
The tracings in diverse conditions of the
lungs show very marked and apparently
significant differences.