A. The
center for solar science and weather in North America
is the National Oceanic and Atmospheric Administration,
or NOAA. Space Weather influences our worlds communications
networks and electrical power systems.
http://www.sec.noaa.gov/today.html
B.
The NOAA homepage for Space Weather is below. Try the
Education link on this page for even more
information about the Sun.
http://www.sec.noaa.gov
and another good Space Weather site
is
..
http://www.spaceweather.com/
C.
Additional images of the Suns many phenomena can
be seen in the dramatic images at
http://www.nasaimages.org/luna/servlet/view/search?q=Sun&search=Search
D.
Just exactly what is a solar particle ejection? These
Web sites offer fiery proof of this angry facet of the
Suns personality.
http://hesperia.gsfc.nasa.gov/sftheory/studyflare.htm
http://sohowww.nascom.nasa.gov/hotshots/X17/
http://science.nasa.gov/headlines/y2001/ast12jun_1.htm
E.
And finally, whats all this stuff about
magnetism on the Sun? Magnetism is one of natures
truly mysterious and influential forces. It is a continual
source of electricity on Earth. It is a source of mystery
on the Sun. The suns magnetic fields project deep
into space, extending past the Earth and out into the
solar system. The suns boiling energies creates
forces that twist and whip and break its magnetic fields
in ways that scientists cannot yet fully understand.
This site is great for exploring
magnetism. Read about Faradays use of magnetism
to induce electricity, and turn a magnet on and off
to see its magnetic field. We repeat the link to the
first site below in the Electricity section. The second
site digs deep into the suns magnetic fields.
The images are fantastic.
http://micro.magnet.fsu.edu/electromag/java/index.html
http://solarmuri.ssl.berkeley.edu/public/introduction.html
F.
How does the Earth live so comfortably with
such a fiery neighbor? The answer is magnetic, ionic,
atomic! Here are two Web sites, among many, in which
you can dig deeper into the heavenly phenomena that
protect the Earth from the Suns solar particle
ejections and dangerous radiation. Space Station Alpha
is at the mercy of the Suns deadly rays and radioactive
particles. As a medium sized star, the Sun is becoming
an excellent fiery laboratory for exploring the fundamental
elements that created the universe in which we live.
http://www-spof.gsfc.nasa.gov/Education/Intro.html
http://helios.gsfc.nasa.gov/magnet.html
When you go to the second site above,
mouse-over and click on the small, yellow illustration
of the Earths magnetosphere. It will enlarge.
Ask yourself how Space Station Alpha, orbiting almost
240 miles above the Earth, and outside of the Earths
Ionosphere, might be exposed to solar weather.
For a really good slide presentation
with lots of images try
http://www.dartmouth.edu/~spacephy/iswm/img0.htm
and click the arrows to watch
the story.
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