The Hood River glacier. (Hood River, Or.) 1889-1933, 1910-03-31
LIGHTNING A MYSTERY
This Phenomenon of Nature Is a
Puzzle to Science.
THE THEORY OF THUNDER.

In General Way IL Is Understoooi
but, as a Matter of Fact, the Bolt
From the Storm In Its Erratie Tend.
sneiss Defies the Investigator.
In a general way we understand the
theory of thunderstorms. AS a mat
ter Of fact, there is no phenomenon
Of nature, but excepting even earth.
quakes, of which we know so little.
Man-made lightning-that is, cleo
tricity Of the highest power, which
we can artifcially produce-will act
according to certain known laws. 1t
will, for instance, travel along con-
ductor of metal.
But fash of lightning will fire.
quent leap from well defined metal
path and launch itself through the air
or some adjacent object which is an
infinitely poorer conductor.
This may be due to the almost in
conceivable force Of fash Of light
ming, says a writer In Pearson's Week.
ly. 1t is estimated that q fash of
lightning a mile long represents a
pressure of discharge equal to 3,00O.-
100000 volts.
AS such fash lasts only about the
thousandth part of second the en-
ergy dissipated by the discharge is
equal to 100000 horsepower, Put in
other words, If we could find some
means of saving and using lightning
we should be the richer by good
round sum for every fash
Lightning is, as we know, usually
accompanied by peal Of thunder,
which Is louder the nearer the hearer
Is to the point Of the discharge, but
this is not an invariabe rule. There
are cases on record Of most destruc-
tive lightning flashes which were I'M
accompanied by sound.
Such phenomenon occurred at Brad
ford some years ago. What is de-
scribed as "a silent thunderbolt" fell
In a graveyard. destroying one monu-
ment and smashing TO atoms nearly
seventy glass cases containing wreaths
and flowers.
In the same summer Swanscombe,
in Kent. was terrified by freak of
lightning. All Of sudden "a great
mass Of blue fire" swept along the
street, and next moment 1t was seen
that the fne old parish church, built
nearly TOO years ago, had been struck.
The building, with all its fine old
carved oak, was soon a roaring fur
mace, and only part Of the chancel
was saved.
Scientists are still hopelessly at sea
as to the cause of that peculiar phe-
nomenon known as globe lightning. At
Coventry some years ago during vio-
lent thunderstorm 1t passed along a
street like soap bubble built of blue
fire and drifted into a shed, where 1t
exploded, blowing the roof off the
place.
At Rheims, in France, a similar fire
ball came into cobbler's shop
through the open window. The soil
tary occupant of the place sat perfect
ly still, paralyzed with terror, while
his fearful visitant lowered for sever.
al seconds overhead. Then 1t moved
toward the fireplace and presently
passed up the chimney.
Next moment there was an explo-
sion like shell bursting, and the up
per part of the chimney came crashing
down.
Not long ago Count G. Hamilton
made record of a similar freak of
electricity. He was sitting at dinner
at house on Lake Wener, In Sweden,
when Just after vivid fash of light
ming a brilliant white ball appeared
over the table and after hanging poised
there for some seconds went off with
with loud bang.
Fortunately 1t did no harm to any
one. although 1t was quite close to
several people. Those who saw it sug-
gested 1t was like ball of cold light.
ming.
In November, 1902, Sydney, Austria
liza, was visited by terrific dust
storm. III the midst Of which perfect
rain of electric f e balls began to fall
These set fire to q number Of houses,
and most appalling panic set In. A
cry was raised that the end Of the
world was at hand, and people rushed
out Of their houses into the ink black,
dust deep streets.
The most amazing and terrifying
displays Of the power Of lightning are
seen on mountains. In 1890 party
was on the top of a mountain In the
Caucasus when a huge violet ball. sur.
rounded by vivid rays, struck a rock
near by and, exploding like a bomb,
burst into atoms. One Of the party
was badly hurt.