The Northern Lights

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Term Paper Title	The Northern Lights
# of Words	1942
# of Pages (250 words per page double spaced)	7.77

The Northern Lights

The Northern lights are poetry, they are nature's light show, and they are
    quantum leaps in the oxygen atom. They are elementary particle physics,
   superstition, mythology and fairy tales. The northern lights have filled
    people with wonder and inspired artists; they have frightened people to
   think that the end is at hand. More exact explanations of the phenomenon
      could not be given until modern particle physics were developed, and
    knowledge about details in the earth’s magneto sphere has been based on
                              measurements from satellites.

When the northern lights are seen over Tromsø, it happens in a set pattern,
although this pattern varies considerably. The outburst starts with a
phosphorocent glow over the horizon in northwest. The glow dies out and
comes back, and then an arch is lit. It drifts up over in the sky. And new
arches are lit and follow the first one. Small waves and curls move along
the arches.

Then within a few minutes a dramatic change is seen in the sky. A hailstorm
of particles hit the upper atmosphere in what is called an aurora sub-storm.
Rays of light shoot down from space, forming draperies, which spread, all
over the sky. And they really remind us of draperies or curtains, which are
flickering in the wind. And you can see a violet and a red trimming at the
lower and upper ends. Or the colors are mixed all together, woven into each
other. The curtains are disappearing and forming all over again by new rays
of light shooting down from space. Above our head we cans see rays going out
in all directions forming what is called an aurora corona. After 10 to 20
minutes the storm is over and the activity decreases. The bands are spread
out, disintegrating in a diffuse light all over the sky. We can not see
individual pockets of light, but the total effect is bright enough to enable
us to make out details of the countryside around us. If we look very
carefully, we can see the remains of the northern lights display as faint,
pulsating flames. Clouds of light which is turned on and off regularly every
5 - 10 seconds as though by an electric light-switch. The natures own
gigantic light show is over.

What causes the northern lights? To answer this, we start with the sun whose
energy production is far from even and fluctuates on an 11-year cycle.
Maximum production coincides with high sunspot activity when processes on
the sun's surface throw particles far out in space. T...

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