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Why does Earth have a Magnetic Field?

The Human Collective
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Published on 20 Sep 2022 / In Science

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Links to learn more about Earth's Magnetic Field:

More on pole flips:
http://www.geomag.bgs.ac.uk/education/reversals.html#top

More on how Earth's magnetic field "The Geodynamo" forms:
http://www.es.ucsc.edu/~glatz/geodynamo.html

References:

Cromie, William J. "Putting a New Spin on Earth's Core." Gazette. Harvard University, 15 Aug. 1996. Web. 20 Dec. 2014. http://news.harvard.edu/gazette/1996/08.15/PuttingaNewSpin.html

Earth Magnetic Field Declination from 1590 to 1990. N.d. Wikimedia. Web. 6 Dec. 2014.
http://commons.wikimedia.org/wiki/File:Earth_Magnetic_Field_Declination_from_1590_to_1990.gif

"Electromagnets: Two Forces Team Up." Magnet Lab. Florida State University, n.d. Web. 6 Dec. 2014. http://www.magnet.fsu.edu/education/tutorials/magnetacademy/magnets/page4.html

"Geodynamo." Earth and Planetary Sciences. University of California Santa Cruz, n.d. Web. 6 Dec. 2014. http://www.es.ucsc.edu/~glatz/geodynamo.html

Hillhouse, John. Variations in the Earth's Magnetic Field. N.d. Wikimedia. Web. 6 Dec. 2014. http://upload.wikimedia.org/wikipedia/commons/2/25/Magnetic_Poles_Movement.gif

Luyendyk, Bruce Peter. "Marine Magnetic Anomalies." Encyclopedia Britannica Online. Encyclopedia Britannica, 6 Jan. 2014. Web. 6 Dec. 2014. http://www.britannica.com/EBchecked/topic/424497/oceanic-crust/285041/Marine-magnetic-anomalies#ref540725

"Magnetic Field of the Earth." HyperPhysics. Georgia State University, n.d. Web. 6 Dec. 2014. http://hyperphysics.phy-astr.gsu.edu/hbase/magnetic/magearth.html
Maps of Magnetic Elements from the WMM2015. 2014. National Geophysical Data Center. Web. 6 Dec. 2014. http://www.ngdc.noaa.gov/geomag/WMM/image.shtml

"Reversals: Magnetic Flip." British Geological Survey. Natural Environment Research Council, n.d. Web. 10 Dec. 2014. http://www.geomag.bgs.ac.uk/education/reversals.html#top

Siegel, Ethan. "Why Does the Earth Have a Liquid Core?" Starts With A Bang. ScienceBlogs, 28 Sept. 2011. Web. 6 Dec. 2014. http://scienceblogs.com/startswithabang/2011/09/28/why-does-the-earth-have-a-liqu/

"The Truth about Earth's Core?" Science Beat. Berkeley Lab, 12 May 2003. Web. 6 Dec. 2014. http://www2.lbl.gov/Science-Articles/Archive/Phys-earth-core.html

"What Causes the Earth's Magnetic Field?" Physics.org. Institute of Physics, n.d. Web. 6 Dec. 2014. http://www.physics.org/article-questions.asp?id=64

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