South Branch intelligencer. [volume] (Romney, Va. [W. Va.]) 1830-1896, 1834-11-15

VI Tue clcCUiCtty3 duu 1891 vi ats viii uS
heard from the remote extremity; aud
! the different degrees of the agitation OF
the air, and likewise the difference Of
the distance, will account for the differ.
ent intensities, OF the sound, and its ap-
parent reverberations and changes"
Sir H. Davy, in his Elements says !:
Gin violent thunder storm, when the
sound Instantly succeeds the flash, the
persons who witness the circumstances
are ia some danger when the interval
lis quarter Of a minute, they are se-
cure"
Why are pointed conductors fxed
as safe guards TO 6ailtiings:s
Because the fluid Of lightning may
be attracted and circulated along them,
and thus kept from iujuring the build.
i ing, till at length it reaches the earth as
a common reservoir.
In these cases the conducting rod or
rods should be ofcopper or iron, and
from halfto three-fourths Of an inch in
diameter. Its upper end should be e.
evated three or four feet above the high.
est part Of the building, and 1.-The me-
tallic paris Of the roof should be con-
nected with the rod, which. should he
perfectly continuance throughout, and
passing down the side Of the building,
penetrate several feet below its founda-
lion, so as always to be immersed in
moist stratum of soil, or, If possible into
water. The leadsn water pipes attacb-
ed TO houses often might be made to
answer the purpose of conductors es-
pecia!ly when thick enough to resist
fusion. Brdnde.
The magnificent effects of electricity
in the thunder storm, were first expe-
rimeniaIIy demonstrated by DR.. Frank.
lin, whose life was passed in ameliorat-
ing the condition of his fellow crea-
lures.
Why is the frtside an unsafe place
in Q thunder sforme
Because the carbonaceous matter, or
SCOT with which the chimney is lined
acts as conductor for the lightning.
Why is the middle of an apartment
the safest place during a thunder
st0rms
Because, should fash Of lightning
strike building, or enter at any Of the
windows, it will take its direction along
the walls, without injuring the centre OF
the room.
Why Is a bed a place Of cempara-
the safety in a thunder STORM. e
Because blankets and feathers are
non-conductors. A woollen rug is
likewise non-conductor, but it should
be removed from the chimney. Bell
wires being conductors, are almost melt.
ed in houses struck by lightning.
Why is IL dangerous to take shelter
under a tree during storms
Because the tree is good conductor,
probably from negotiations tending to
atmospheric electricity, and the imme.
date vicinity of the tree being more
highly electrical, as will be presently
shown.
The safest situation without doors
during storm, is within some yards
Of trees, and upon the dryest spot that
can be selected.
Why are ships at sea SO often DIES.
troyed by lightning
Because of the great quantity of met
al, and particularly Of IRON, which is
employed in the rigging; more espe-
cially as the metallic MASSES are there
nearly insulated, or connected only by
very imperfect conductors.
These differences are drawn from a
very interesting account of an accident
to the packet ship New. Yorkj by
lightning, in 1897. The paper is by
DR.. Trial, and was communicated to
the Royal Society by one of its most
distinguished fellows, the present Lord
Chancellor. 1t will, Of course be found
! in the Philosophical transactions of the
year, BIT perhaps more readily in the
Arcana Of Science and Art, for 1929.
Columbus, (Missouri,) Oct. FL.
Emigration.-Never, within our re-