Juniata sentinel and Republican. [volume] (Mifflintown, Juniata County, Pa.) 1873-1955, 1898-12-14

If all the mountains In the world
were leveled. the average height of the
land would rise nearly 220 feet.
The moon moves through space at the
rate Of 1888 feet per second. Its mean
distance from the earth is 23S.S50
miles.
The United States has a long coast
line to defend. 1t measures 5.715 miles,
embracing 2.349 miles on the Atlantic
1.S1O on the Pacific Ocean.
For seven years the st. Lawrence
River in Canada gradually decreases in
depth. Then for seven years 1t gradual
ly increases in depth. the difference in
level being about five feet.
The famous thOroughfare of Berlin,
Unter den Linden, is said to be the best
lighted street In the world. 1t is illu.
minated by three lines of electric arc
lamps, which are separated by two
lines Of trees.
Prof. Bilslik says tha. over large
area In central Russia the magnetic
needle does not point north and south.
It is at one part detected to the west,
and at another part 10 the east, and At
one place 1t points due east and west.
Herr Puluj calculates that the oscilla.
tions from a Leyden jar are from one
hundred thousand to one million per
second, depending on It's size, but in
order that the electric rays produced
thereby should become visible as red
light the number of oscillations would
have to be increased to 400, ,0OO. .OO0, 900.
The amount of powder required to
propel canonn p-o1ectiles is about halt
the weight of the projectile. A protec-
tile four inches in diameter weighs
thirty-three pounds, fve-inch fifty
pounds, six-inch one hundred. eight.
inch $50, ten-inch 800. twelve-inch $50.
thirteen-ihSu - sixteen-inch 2.3Ie
pounds. OO.
Climate has gII Effect on the color
Of the complexion For example. the
Caucasians are of all compilations, ac.
cording to the climate, but white Is the
natural color. Thus a native of north.
ern Europe is fair. of central less so. OF
southern swarthy. Moor more so. an
Arab olive. and a Hindu nearly black
Such Of the Hindu women as have new.
er been exposed to the sun are as fair
as the inhabitants Of the south of Eu.
rope.
1t has been shown that. while Nan
sens observations prove that the north
polar region is great ocean cavity,
ho 49,,
region, on the contrary. Is. apparently
a vast solid mass of land, surrounded
by a belt of water about two miles in
depth. The area Of the south polar con.
tinent Is estimated to be about 4.000..
900 square miles. 1.O00.OOO more than
that Of the United States. excluding
Alaska.
A correspondent Of Nature. who Is as
ISOLATED with the observatory at Tou
louise, calls attention 20 a very singular
phenomenon, the scientific explanation
of which he seeks. Take bar of iron
in the hand by one end, and plunge the
other end in the fire. heating 1t strongly
but not so much that the hand cannot
retain its hold. Then plunge the heated
end in pail of cold water. Immediate
ly the end held by the hand becomes sc
hot that it is impossible to retain it IL
the fingers. This phenomenon. said by
the correspondent TO be familiar &c
workmen in iron. is ascribed by them
to some repellent action which they
suppose the sudden cold to exert upor
the heat contained in the iron. which is
thus driven to the opposite extremity.