Clinch Valley news. [volume] (Jeffersonville, Va.) 18??-2019, 1890-02-28
POPULAR SCIENCE.

Abo0t two-thirls OF pint of mir is
inhaled and exhaled ut each breath Of
ordinary respiration.
The weight OF the human heart is from
eight to twelve ounces. II beats 100, 900
times in twenty four hours.
The human skin contains more than
1000, 600 openings, which are the out
lets OF an equal number of sweat glands.
a man brcathcs eighteen times a
minute, and 5000 cubic feet, or about
375 hogshcads, OF air every hoar of his
existence.
An English navigator at Santanl"r, on
sea- waves i'll Il prolonged and heavy gale
of wind to be forty-two feet high and
3S6 feet long.
a new electric radiation meter, de-
pending on the clongatlon of n fine
platinum wire, and So sensitive rs to in
dictate an elongation of one fifty -millionth
of an inch, has been exhibited To the
London Royal Society by w. &. Greg
DRY.
From an exhaustive study Of the large
collection Of mcteoritcs nj Harvard Col
lcgc, the conclusion has been arrived Mt
! that many of the masses of mcteoric iron
now known arc cleavage crystals, broken
Off, probably, by the impact Of the mass
against the atmosphere.
The circle around the moon, or lunar
rainbow, shows the presence OF moisture
i'll the air. Moisture ut high altitude
produces II large bow and nj low alti-
tudc Il small bow. The smaller the bow,
therefore, the nearer the moisture, and,
consequently, the sooner will the storm
develop.
Instead of hybrils being sterile, the
, evidence is cumulative that sterile hv-
BIRDS are the exception. In plants more
stcrility can he addaccd in cases of I'M
doubted species. The dwarf species OF
Robinia, Robinia hispidn or rose acacia,
is almost always sterile, and the we'll
known Chinese wistaria is sterile except
under special conditions, or in special
seasons.
The nitrate of lead is the cheapest dis
infectant known that lufills its intent
1t is made by dissOlving half Il dram
of nitrate of lead in pint of boil
ing water, then dissolve two drains nf
common salt in eight or ten quarts of
water. When both are thoroughly dis
solved pour the two mixtures together,
and when The sediment has settled You
have Il pail OF clear fluid which liz the
saturated solution of the chloride of
lead.
With the progress of science whole
race of men las disappeared, The so
called "wild men, in whose existence
the .i,ost learned firmly believed few
decades ago, and who still live in die
imagination Of many vino are unnc-
qualntcd with recent Investigations. The
wild man was supposed To Inc II peculiar
creature, half man and halt beast, form
ing the connecting link bctwccn the hui
man species and the apes. Tho belief in
his existence is 10 be ascrird, without
doubt, To erroneous observations and re-
ports of travellers.
Great stress has lately been laid by The
best medical authorities on the imnor-
lance of looking well 10 the teeth q! m,-
ticnts having Il tubcrcuar tendency. and
seeing that they keep their mouths in
thoroughly healthy and ascpiic condi-
ton. The fact has been established that
diseased roots and teeth have Il great
deal 10 do i'll starting tubcrcular trouble
in the Emphatic glands Of people pre-
disposed 10 this disease. Tubcrclc ba-
ella gaining admission to thc jaw
through the diseased teeth speedily in
feet the structures i'll Tie ncighborhood.
Some twenty years ago Herr Falb, an
Austrian scientist, first suggested the
possibility that the moon may net
upon the great ocean of molten matter
beneath the earih's crust exactly as il acts
in producing the tides Of the external
ocean Of water. He now considers that
the reality of such action is proven. and
that the earth's crus, is severely strained,
more or less warped and broken, at the
times the theory would indicate. 1t is
during the periods of greatest strain re-
sulting from the moons attraction that
earthquakes appear to DE most likely TO
occur, and the gases seem 10 he forced
mic coal mines 10 such an extent rs
greatly to increase the explosions.
Wonders OF POmpcii.