Juniata sentinel and Republican. [volume] (Mifflintown, Juniata County, Pa.) 1873-1955, 1899-05-24
3sSa 49,
H M A@ @I
MNVEH1 ISL


Three miles an hour is about the av-
erage Of the Gulf stream. At certain
places. however. 1t attains . speed Of
81 miles an hour. the rapidity Of the
current giving the surface, when the
sun IL shining the appearance Of q
sheet Of IRE.
A red sunset indicates q fine day to
follow. because the air when dry re-
tracts more heat or heat-making rays.
and as dry air is not perfectly transpar-
ent. they are again reflected In the hori-
zon. A coppery or yellowy sunset gen.
orally foretells rain.
Italy has had 294 square miles Of
land added to it's territory in the last
| seventy years. by the advance of the
delta Of the TO into the Adriatic sea-
The measurement has been made by
Professor Marinelli, VINO carefully
compared the Austrian surveys to 1928
with the italian surveys Of 1898. The
addition amounts to e-siX-hundredth
Of the total area of Italy at the earlier
date.
The New York, New Haven and
Hartford Railroad is striving to reduce
the weight Of its passenger-cars. The
standard pattern cars weigh close upon
thirty tons, and by reducing weight in
every possible detail, nearly four tons
can be taken OF. This reduction repre-
sents pretty nearly the average passen-
ger contents of q car. Much Of the
traction Resistance Of q car Is due to It's
weight Consequently the reduction
viii increase the number Of cars that
may be drawn by an engine. The air
resistance 10 Independent of the
weight.
Glaciers are formed by the accumu-
lation Of snow on mountains or ele-
waited table lands. The snow Is COM
pressed into ice by its own weight.
Glaciers dow, like rivers, between
banks, and follow burrows or ravines
on the mountain slope. The rate Of
progress varies greatly. and depends on
the grade. the number of curves, the
volume Of ice In the glacier, and the ac-
cumulations Of its source. In the Alps
these ice streams advance from four to
sixteen inches a day. The central part
Of the ice moves faster than that next
the shore. Gravitation explains the
movement of glaciers, Just as 1t does
that Of rivers.
Recent experiments with improved
Of projectiles have shown that the
speed goes on increasing after the mis-
sile has left the mouth Of the cannon.
Leaving the muzzle with q velocity Of
about !, ,474 feet In a second, q projectile
has been observed to increase its speed
to about 1850 feet per second within
the first elk feet. 1t II only after hav-
ing travelled about twenty-five yards
that the projectile's velocity becomes
reduced to the speed that 1t had on
leaving the muzzle. This Is ascrfbed to
the impulse Of the expanding gas be-
ing felt for some distance beyond the
cannon's mouth.
Prof. G. w. Hough Of the Dearborn
University, who has studied the planet
Jupiter uninterruptedly for nearly
twenty years. recently stated some
facts that are not generally known. He
says the broad belts of various colors
which cross the surface of Jupiter par
allel to the equator, and the other con-
spicuous marks on 1t are not so change
able in their general features as many
have supposed them to be. The great
red spot. which first made its appear
ance in 1878, has remained practically
unchanged in shape and size ever since.
Professor Hough inclines to think that
1.-The medium in which the red spot and
the equatorial belt are floating may
have a density approximating that of a
liquid" Heretofore it has usually been
assumed that Jupiter's surface was
composed principally Of clouds.
through riffs and openings in which
glimpses could be caught Of denser por-
tons beneath.