Clinch Valley news. [volume] (Jeffersonville, Va.) 18??-2019, 1891-05-01
POPULAR SCIENCE.

Ono volt of electromotive force is gene
rated for every 100, 200, 900 lines of force
cut per second.
An Australian photographer is reported
to get excellent pictures of objects at a
distance of sixteen miles.
A French authority estimates that cats
are responsible for thirty per cent. of the
cases of common contagious diseases.
Scientists say that the orange was orig
inally berry, and it, evolution has been
going on for more than thousand wears.
The electric light Of 100000 can
ile-powcr in the lighthouse at Hanst-
holm, Coast of Jutland, is said to be tho
most powerful light in the world.
One of the interesting facts of physi-
ology is that the human body generates
enough hent during the day to melt forty.
four pounds Of ice and raise it to the
boiling uo;nt.
The speed with which the bodies
known as metcors enter and pass through
the atmosphere Is SO much in excess of
that of cannon ball that there is no COM
parison between the two bodies.
In these days of so many alleged cures
for consumption, oysters are commended
and are given to consumptivc patients
because they contain iodine. The treat.
ment is quite common i'll the South.
The hourly rate of water over Niagara
Falls is 100, 900, 900 tons, representing
$4,000, 00O-horsc power, and the total
daily production OF coal in the world
would just about suffice to pump this
water back.
a special kind of paper has been in
vented, which, it is alleged, is absolutely
impervious to water, and will even stand
boiling. The cr-proolng can be car
rled out either after the paper is made or
during the operation of making it.
1t has been calculated that the electro
motive force of n bolt of lightning is
about $500, 900 volts, the current about
Ii, 900, 900 anpcrcs, and the time to be
about l-2O, 900 part of second In such
bolt there is an energy Of 2,450, 000,-
600 watts, or 1921, 1S2 II. p.
The brightness of the moon is not so
very much greater than the brightness of
the same area OF sky. The total light of
the full moon can be compared with the
total light of the sun, though it is II very
difficult problem, and the result will be
that the sun is rs bright rs ESQ, 900 full
moons.
The respiration of insects has been the
subject of study by NJ. Coatcjcan, who
has found that, contrary to what takes
place i'll vcrtcbiates, the movement of in
SEPARATION is passive and that of expiration
active The mir is driven from the body
by Il contractilc effort. Hence, when the
insect is wounded the flow Of blood oc.
ours at each expiration. The respiratory
movement not interrupted by cutting or
the head, nor by the absorption of curare,
whic1aproduces an immediate cessation
in man.
One of the most hazardous manuiac-
turing processes is likely soon to become
thing of the past. The great increase
of cciluloid manufacture in recent Years
has made camphor so scarce and dear that
the chemists have been excrting them
selves to find substitute for that rum.
Some one has now succeeded in doing so,
and Il company has been formed to manu-
facture the new product, which is de-
scribed us possessing all the good qualities
of the old infnmmab'c compound of gun
cotton and camphor while being cheaper
and, i'll addition, absolutely incombusti-
BILE