The Arizona sentinel., 1885-01-31
FACTS FOR THE CURIOUS.

Y
four no lrs, about two pounds of carbonic
acid. This is the product of the bum
ing of nine ounces of carbon. AS giving
some idea of the forces within the body,
| 1t is interesting to know that the COM
bustiUn of nine ounces Of carbon hbeT.
ates over 6,000,000 foot pounds of en-
ergy. This is equivalent to more than
one-eighth of horse power acting con-
tinuousIy for the twenty four hours or
1t equals 182 horse powers working for
one minute.
AMONG the cannon at the Rock Island
arsenal is one which was captured at
Saratoga, Oct. II, 1777; one captured at
Yorktown, Oct. ~, 1881 one captured
at Niagara, July 25. 1914 Il pair Of NOR
tars. captured at Vera Cruz, March %,
le47; one captured In the late civil war
bearing the inscription, g Presented TO
South Carolina, by one of its citizens
travelling abroad, III commemoration of
what was done on the l0th of December,
1902" There are also several cannon
which were cast in France and Spain,
dating back nearly to the beginning OF
the last century.
WHAT MAKES Corn Pop Did you
ever have it explained to you why it is
that corn pops when you place it over
burning coal or on hot stove? Indian
corn, SO the chemists tell us, contains all
the way from six to eleven parts in 100,
by weight, of fat. By proper means
this fat can be separated from the grain,
and it is then thick, pale oil. When
OILS are heated sufficiently in closed ves-
sells, so that the air cannot get to them,
they are turned into gas, which occupies
many times the bulk the oil did. When
popcorn is gradually heated, and made
so hot that tie oil'inside of the kernels
turns to gas, this gas cannot escape
through the hull of the kernels, but
when the interior pressure gets strong
enough it bursts the grain, and the ex-
plosion is so violent that it skaters it
IN the most curious manner. T. starch
III the grain becomes cooked, aud takes
up great deal more space than it did
before.
JUPrTER.-Jupiter's diameter is about
eleven times that of our earth, and his
mean density is about q quarter that of
the earth, or abouta third more than water.
Now, bulky body may be composed Of
heavy materials, and still, as q whole,
be light, like an IRON ship or a lump OF
pumice-stone, that will float in water.
The pumice lump is light on account of
its vesicular formation, so that the mass
consists of heavy felspathic material and
the air it contains. Extract the air, and
the pumice loses its floating power,
though still far from heavy in proper
ton to its bulk. Most of the earth's
crust is formed of solids much heavier
than water. GRANTEES are more than
two and q half times heavier than water,
slaty rocks about the same, and SO are
ordinary imestones, the variations of all
being from abont 2.5 to %. The IRON
stone group contains denser minerals
red hematite has specific gravity of4.5;
ronstone, As to 90, etc., and
many other ores are heavy. At some
remote period, when only part of the
now solid earth had been condensed
from gaseous and vapory matter, cur
planet might have had a mean density
ike that of Jupiter, rs its rocky materi-
ais contain between 40 and 80 per cent.
of oxygen and while condensations and
chemical combinations We're going on
rapidly Cur globe must have been the
scene of
Thnnders, lightnngs and prodigious storms.
And it is probable that certain stars
which have suddenly blazed forth with
passing splendor have exhibited to us
the spectacle of condagratiOns extending
ever millions and bilious of square
miles. Color changes in Jupiter-such
rs those noticed by Mr.. Browning and
the writer IN 1S69-70-may have been
caused by soda flames, though not fierce
enough or extensive enough to add ma
terially to his ordinary luminosity, which
is estimated as always exceeding, though
not in very high degree, what it would
DE by mere reflection of light received
from The snn=ReLnrnui1