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Lightning is caused by an electrical charge, which builds up
between a cloud and an elevated object on the ground. Since
there is a strong attractive force between positive and negative
charges, lightning is very energetic, but unpredictable in its
timing and effect.
Lightning can be attracted to the same object repeatedly, either
during a single storm, or at another time. There are reports
that a man was struck by lightning four times over a thirty year
period! Tall buildings like the CN Tower in Toronto, or the
Empire State Building in New York, are often struck by
lightning. However, because they're equipped with very large
lightning conductors, the electrical charge is carried harmlessly
into the ground.
The chances that a tree will receive a lightning strike depend
mainly on its height. All trees attract lightning because they
are tall and contain a lot of moisture, which provides good
electrical conduction for the lightning. The belief that oak
trees attract lightning more than other trees arises because they
tend to be taller than surrounding trees, and they have a higher
moisture content. A tree hit by lightning is more likely to
survive if it's soaked by rain, because much of the electrical
charge is able to move safely down the outside surface moisture,
instead of inside the tree.
So next time you're out in a thunder storm lie low, avoid trees,
and try to go inside a building.
MOVING BEYOND MATTER
by Christopher Shennan
There are many "pat phrases" that come at us with the
force of truth, that later prove false. "Lightning never
strikes twice in the same place" is a case in
point. Lightning does indeed strike more than once in the same
place, and that quite frequently. This should make us wary of
accepting similar phrases at face value.
I mean, what we call "popular" or
"conventional" wisdom, is sometimes expressed as a truth
in a proverb. "A friend in need, is a friend
indeed," is one of the soundest pearls of wisdom in this class;
you cannot argue very well with that. Others may be
clearly false, like the one that says, "Sticks and stones may
break my bones, but words will never hurt me." More
emotional and mental suffering has resulted from thoughtless or
angry words than is possible to compute.
Popular wisdom also attempts to classify people into groups, or
types; to label them for easy reference. Life is seldom that
simple. Human nature is far too complex to be summed up by
simply throwing a few words at it.
Could it be we "adopt" pat phrases as a means of
avoiding the responsibility of thinking things through?
One phrase that strikes a particularly discordant note, to
me, is the one directed at some individual in the following
way: "He will never change!" Or, "She is
so set in her ways, there is no hope for her." Yet again,
it may be directed within. We might say, "I'm
hopeless. I could never change."
True, many people don't change. Yet at the same time, there
are too many examples of people who have experienced radical change
in life to adopt the idea that 'people can't change' as a
principle. It is cruel to impose such a burden on a person. We
all need someone to believe in us. We all need an encouraging
word and a push in the right direction.
Who knows if your encouragement may rekindle a quenched
hope? It may give the impetus to persevere. It may even
inspire them to make changes in their life.
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