The Mason County journal. [volume] (Shelton, W.T.) 1886-1927, 1889-07-12
THE OCEANS TIDES.
Causes of the Waters Regular Ebb and
Etnw

Causes of the Waters Regular Ebb and
Flow.
No movement OF the sea is more i'm
portant than the regular rise and fall,
once in about twenty-five hours, which
we know as the tide. The movement
is due to the difference between the at
fractions exerted by the moon and sun
upon the solid earth and those exerted
upon the oceanic envelope. Attraction,
as shown by Newton. varies not only
directly as the mass, but also inversely
as the square Of the distance; thus at
an equal distance one body will exert
double the attraction of another of half
the mass; but if the distance of one
body be twice that of the other and
their masses equal. the attraction of the
more distant will be but a Quarter of
that of the nearer. So the immense
mass OF the sun exerts. in spite of its
greater distance, far greater attrac-
ton upon the earth as whole than
does the moon
The difference, however between the
suns attraction upon the solid earth
and its attraction upon the ocean is. on
account of its distance, but a small
fraction of it's total attraction; while
that between the moons attraction
upon the solid earth and it's attraction
upon the ocean. owing to its compare
lively small distance of 24O,O miles,
is very considerable fraction of it's to-
tai action. So that while the earth's
attraction causes the moon TO trave,
round 1t once a month, the reciprocal
attraction of the moon is mainly eff.
fectual in causing the tides, the suns
action being only about one-third as
great. The waters of the open ocean
have tendency to rise up in a heap on
the side nearest the moon. because they
are pulled more strongly than is the
SOLID globe. and. being liquid, yield to
the attraction. simultaneously a sim.
liar heaping up occurs at the antipodes
OF this point-on the side, that is.
farthest from the moon-because the
solid globe is. as 1t were, pulled away
from the water there.
Two great tidal waves are thus ORIG
mated; and. as the earth's movement
In Its orbit, coupled with it's daily rota-
ton. makes the moon occupy the same
relative position every twenty-five
hours-or. more exactly, every twenty.
four hours and fifty minutes high tide
at any place occurs twice in every such
period OF time. -Casselrs Educator
Great preparations have been made or
Shoeburyness for firing what is known as
the Jubilee shot" A nine-inch breechloader
VIII be hred at an elevation of 40 degs and
Cne carriage has had to be much strength
eneu. Inc range Is expected to be a little
over ten miles. Strictly speaking, for a
!nDllee shot the gun should have been elevated
to 80 dogs.
The sultan has given well known pictura
OF Lord Nelson, which was i'm his possession
to the London National gallery. In 179S
after the battle of the Nile, Selim III sent
some very rich gifts to Nelson, among them
being the Chelongk, a diamond plume ONLY
given to the victorious Mussulnans. Nelson
gave the portrait in return, painted nv Gnz.
zardI and Palermo
addison speaks Of an advocate who wm,.
never plead a case without having his hand
% the end OF a thread drawn tightly round
)ne OF his thumbs all the time his snaacb
-asted The wags said it was the thread of
lis discourse. -
Napoleon had his particular mode of maa;-
Ill L.
II he stayed IN his study, talked to himself
iila sung, or like child, cut the arms of his
;nair: Then suddenly rousing up, would give
INC pan Oh a monument to be erected, or of
one OF the great military movements which
astonished the world.