|
Mercury
Spring 2007 Table of Contents

by
James C. White II
I was
six years old when I discovered I had the power of Zeus. By merely
dragging my feet across a wool rug in my house, I could unleash
lightning bolts -- well, some tiny sparks, at least -- on my mortal
parents.
It
did not take me long to find out that lightning, those real Zeusian
bolts of electricity from the sky, came about in essentially the
same way.
As
you walk across a rug, you strip electrons -- tiny, discrete units
of negative electrical charge -- from it, and that extra charge
on you makes you slightly negatively charged. When your hand nears
a doorknob (or someone’s earlobe), Nature says, "Away
extra charge!" and a spark jumps between finger and knob. Do
you not believe that you, too, can make mini-lightning? Drag your
feet tonight and give your honey a charge.
When
Nature works on larger scales like those of big, fluffy clouds in
the atmospheres of Earth or mighty Jupiter, the sparks are even
bigger, and the energy is enormous. In a typical terrestrial lightning
bolt, striking down from a cloud or springing up from the ground
to a cloud, the energy is greater for a fraction of a second than
that produced by all the electrical power generating plants in the
United States. That more than one hundred bolts every second are
striking Earth somewhere makes one realize (again) how powerful
Nature can be.
If
you enjoyed this excerpt from a feature article and would
like to receive our quarterly Mercury magazine, we invite you to
join the ASP and receive
4 issues a year.
|