Clinch Valley news. [volume] (Jeffersonville, Va.) 18??-2019, 1890-11-07
POPULAR SCIENCE.

Russia is to have hygiene exhibition
at st. Petersburg.
Inventor Edison's laboratory Mt Menlo
Park, n. j., costs $25,OOO year to
maintain.
Viewed under a powerful microscope
the human skin is as full of holes as
piece of lace.
1t is claimed that in Havana, Cuba.
electricity is used for the publication of
the sugar juice with success.
Emperor William of Germany has had
On electric railway built for bringing
dishes from the kitchen into tho state
diuing-room.
BY attaching an electric motor to n
Gatllng gun, it is claimed to be possible
to discharge 1000 shots per minute, the
heating OF the barrels Offering tho only
limit to the rapidity of firing.
A cheap and convenient method of
bleaching by electricity has been intro
duced into Russia, where chloride of
magnesium, which has hitherto been
largely used in the industry, is rare and
expensive.
Apiarists maintain that bees do not in
lure growing or fair fruit. The Juice of
the sound fruit is inimical to their well
fare; but though they will not attack
sound fruit, they settle upon bruised and
blcmishcd fruit.
The trouble experienced by the pilots
of the submarine boats tried ON the con-
tinent has been largely due to the i'm
possibility of seeing greater distance
than twenty-five feet when the boats aro
entirely submerged.
In the process of photographinp
colors, lately discovered, the photographs
are taken on glass and paper, and tho
tints range from deep red, through
yellow, to bright blue, but green is
absent in all the positivcs. Very long
exposure is required.
A system of stenography, by which
shorthand reports of speeches can be sent
to distance as they come from the
stcnographcr, has lately appeared in
Franco. The speed of this instrument
is said greatly to exceed that of all other
similar machines now in use.
The temperature of the snow next to
the ground is found by Signor Chistoni
to vary but little, while that of the up-
permost layer is sometimes nearly twenty
degrees Fahrebeit higher. The air an
inch above the Show is always colder than
the top of the snow, and colder than the
air twenty inches higher.
a French statstician has lust nsccr.
tanned that human being, of either sex,
who is moderate cater, and who lives to
be seventy years old, consumes during
''thc days of the years of his life" a
quantity of food which would fill twenty
ordinary railway baggage cars. "a
good eater" however, may require as
many rs thirty.
The increase noted in lcprosy in tho
West Indies is attributed to the fact that
lepers are permitted to walk about with
out restraint, to beg, and to mix with
healthy people. In the four years fol-
lowing 1878 twenty-five deaths from
lcprosy were registered there, while
thirty-four deaths occurred in tho three
years preceding 1888.
Recent investigations by Captain J. RI
NIaclcar have brought out some new n,
important facts concerning the bchay
of lightning under certain conditif.
After examining number of trees with
had been struck by lightning, he fad
that those which were struck -beforthc
falling of rain shattered, wItffte
thos,> 'si::In were struck after the rain
'egan were simply scored, and had the
park more or less blown off. These
phenomena point to the fact that during
ain every tree is conducting electricity.
Other considerations affecting the issue
ire the position of the cloud, the amount
Of foliage on the tree, its conditions of |
moisture and its connection with run
ming water.