Clinch Valley news. [volume] (Jeffersonville, Va.) 18??-2019, 1889-09-06
POPULAR SCIENCE.

Electric lighting ON man-of-war ships
IS SO great success that it is now con.
coded no such ship is complete without
it.
The first submarine cable manuiactory
was started in Italy two wears ago; now
it has IN output of 10000 metres pc,
day
The critical temperature of rccalcs,
ccncc defines the stages nj which hot steel
when suddenly cooled becomes either
hard or is anncalcd
An increase in phosphorus in iron has
been found 10 decrease its cunduc,ivity.
and the same peculiarly has been no.
ticcd with manganese.
Tie infant mortality ranges from
'wcniy-onc to fifty per cent. In Other
words, ont Of every eight children born
nom two To four will die, before the az,
vi five
The shortest time occupied by the Tor,
nado cloud in passing ,:ivcn point
varies from San Instant To about tween.
" minutes, the average being seventy.
four seconds.
During the las; ten years I'M oculist oil
Cronsiad, is said to have treated thiri,
asses of phoio-clcc;ric ophihnlmiu, II new
disease due To Inc action of the electric
light on the eyes.
Two travelling platforms of ten tons
capacity moved by electricity and
mounted on girdcrs are uscd to carry Wis.
iiorS around the machinery hall Of the
Paris Exposition.
The boring for oil in the United States
IS not always successful instance, n
boring at Southhury, Conn, has lately
been abandoned after 200 feet had been
explored and $40, 900 lost in The under.
taking
I'm English club man wngcrcd S2a that
he could stand Tor thirty minutes without
moYin%a muscle outside of those required
Tor respiration. At the end Of twenty.
two minutes lie fell over in II Ill.
a fragment of n meteor which recently
fell III Chicago, WAS analysed aud found
to contain ~ FER cent. of iron, 81 ol
nickel, : Of manganese and small quaint.
lies OF aluminium, cobalt, lin, copper,
arsenic, etc.
| N'i'Nh alittii'l'Al lIlsb 'lllNl US ltlt "
Hour has jus. been tested rs fuel fnI
iron-mnkiny III the Morchcid Mill,
SharpSburg, and found TO accomplish as
much in ono hour us the gas furnace doe.
i'll an hour and II quarter. Bcin. mine
refuse il costs nothing.
DIR. lmlach, of Liverpool. hns come tc
The conclusion that consumption ecu b,
transmitted (rom COWS to human being.
through milk. Ills experiments nrov,
Ic1 ON The milk Of tubcrcnlo,s COWS de.
vclop lubcrculnr disease.
I'm official report gives the Number q,
British boiler explosions fnr the year, end
Ing with last June us siN;y-0nr, with /;
loss of thirty one lives. More than hal
of The explosions were due 10 the use 81
worn ont boilers, scvcniccn IN ,lcfcctiv,
designs and fittings or undue working
pressure, seven 10 ignorance or NEGLECT o.
attendants, and six to miscellaneous
causes.
Mushrooms are bui tender oad-siool
grown where The soil is very much %
vegetable substance. All such objcci'
are but the cells Of plants in The soil sivcI
discharge from the ground by II fore,
OF electricity which the earth discharges
wherever plants or corals are grown. 4
form is given the object by II part of tn,
substance being spilled over the top of
stalk and contracted hy the dryer con
dition of the atmosphere. The seams il
the top are but consequence of TN
shrinking Of the substance.