Shenandoah herald. [volume] (Woodstock, Va.) 1865-1974, 1892-05-06
POPULAR SCIENCE.

Ddll AZ lnuCu ~ dOCos
Admiral Selwyn, OF the British Navy
has discovered a valuable process Of
treating ores.
The circumference of the earth's orbit
is about 612, 300 500 miles. that of the
moon about 1,5OO, 493 miles. -
rhe average age at which women mar
ry is 25.5. Married women live two
years longer than single women.
The essential ingredient in "safety
matches" is chlorate of potash mixed
with other combustible substances.
The United States has 100, 900 square
miles of coal beds, of which l2O, 900
square miles may be easily worked.
The Readings new compound double
end locomotives for suburban travel arc
attracting a good deal of attention.
Agricultural chemists estimate the
nutriment Of 100 pounds Of cotton.seed
meal as equal to 3lS pounds Of corn, Oh
to 767 pounds of wheat bran.
II is said that the mineral oils are des'
tined to disolace vegetable oils as IL
luminents in lighthouses and light
vessels, owing to the fact that the IN
greiients in the after are not all COM
bustible.
Gray horses live longe'', aud rOan'
nearly as long; cream.colorei are def
cient of staying power, especially IN
summer weather; bays, on an average,
are the best. Horses with black hoots
are stronger aud tougher than Others.
Sir William Thomson has calculated
the quantity of fuel required for each
square yard of the solar surface would
be no less than 1850 pounds Of coal
per hour! equivalent to the work OF
steam engine of 5000 horse. power.
Mr.. Sinclair has discovered a new mode
Of respiration in myriapods, the breath
ing organ in scutigera holding position
intermediate between the trlcheg of my
riapods and the lungs of spiders. He
holds that the trachec have developed
into the lungs Of spiders aud scorpions.
Science has at last invented a. worse
smell than that from bad egg. Ine
smell that has added fresh purgatorial
experiences to this life is a preparation
of sulphide of ammonium, and enough OF
it to break up political convention can
be carried iu a thin glass bulb in the
vest pocket.
There are so many trolley wires and
other electric wires in Boston, Mass,
that the authoritic; ; have become alarme
over the dangers that are everywhere
present. So each police station has been
provided with a patent wire cutter
clumsy apparatus of iron and steel and
rubber-which can be usei for severIng
live or dead wires without imperiling
the users life.
A Canadian naturalist writes that he
has seen squirrels frisklng among tae
trees in the coolest weather. On bright,
sunny days, especially, they delight to
chase each other from tree to tree, aud
cover the snow with their tracks. Tnc
striped squirrels lag up in the autumn
store of provisions of grain, nuts, etc.
for winter, and on fine days may be seen
summing themselves.
The horse power unit was estaollshe1
BIZ james Watt about a century ago, and
the figures were settled in curious way,
Watt, IN his usual careful manner, pro-
ceeded to find out the average work
which the horses of his district could
perform, aud he found taat the raising
of $4,000 pounds one foot per minute
was about an actual horse power. As
method of encouraging business, WATT
offered to sell engines reckoning 35'ooo
foot pounds to horsepower, or one
third molc than the actual.