Scientists have known for awhile that the magnetic poles move and that they periodically actually switch. The magnetic pole actually moves from being in the North to the South. Lately, there has been mounting evidence that the poles may be in the process of switching right now.
http://en.wikipedia.org/wiki/Magnetic_declination
http://en.wikipedia.org/wiki/Earth%27s_magnetic_field
http://en.wikipedia.org/wiki/Geomagnetic_reversal
Since childhood when I read about this phenomena in an issue of National Geographic, there have been many questions in my mind..
Will the reversal be slow or fast? Will the Earth's magnetic field disappear during the process?
How will the reversal affect life on earth such as bird migrations that rely on the poles for navigating? Most of our bodies are composed of water which is polar and responds mildly to a magnetic field. Without our current levels of technology would we still be able to detect the reversal when it occurs?
Could the past reversals be responsible for some of the mass extinctions? Could it be responsible for global warming and global freezes?
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Blog written by three brainy, witty family characters! Sometimes we think too much! But we can not guarantee crrect typing or sepllign!
