Earth’s Magnetic Field James Johnson Jacob Harris "NASA - National Aeronautics and Space Administration." NASA. N.p., 5 Dec Web. 29 July

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Presentation transcript:

Earth’s Magnetic Field James Johnson Jacob Harris "NASA - National Aeronautics and Space Administration." NASA. N.p., 5 Dec Web. 29 July

How Is It Generated? (3) Geomagnetic dynamo self-sustaining process creating geomagnetic field "Geomagnetic Field." Wikipedia. Wikimedia Foundation, 16 July Web. 29 July

Why Is It Important? (3) Protects Earth Radiation belts Mars lost its field Grossman, Lisa. "Earth’s Magnetic Field Is 3.5 Billion Years Old." Wired.com. Conde Nast Digital, 05 Mar Web. 29 July "Mars." Wikipedia. Wikimedia Foundation, 30 July Web. 31 July

The Aurora Borealis and Australis (H) Atmospheric phenomena Caused by solar radiation "Aurora." Wikipedia. Wikimedia Foundation, 23 July Web. 29 July

Why Is It Useful? (H) Magnetic compasses since 200 BCE Geographic north different from magnetic north "Compass." Wikipedia. Wikimedia Foundation, 28 July Web. 29 July

Magnetic Pole Drift (H) The earth’s magnetic poles are constantly shifting. "Pole Shift: North Races, South Crawls." (Modern Survival Blog). N.p., 20 Jan Web. 29 July "Spookd Blog : Greg Davis: Global Warming or Climate Change?" Spookd Blog : Greg Davis: Global Warming or Climate Change? N.p., 27 Jan Web. 29 July

What Are the Effects? (3) Runway numbering Tampa International Airport "Flight Level Leadership." Flight Level Leadership. N.p., 25 June Web. 29 July

Polarity Reversal (H) Oceans’ crust provides evidence Poles switch hundreds of thousands of years Overdue from last reversal "High School Earth Science/Seafloor Spreading." - Wikibooks, Open Books for an Open World. N.p., n.d. Web. 29 July

Bibliography 1. Merrill, Ronald T. Our Magnetic Earth: The Science of Geomagnetism. Chicago: University of Chicago, Print. 2. "dynamo theory." Encyclopædia Britannica. Encyclopædia Britannica Online Academic Edition. Encyclopædia Britannica Inc., Web. 27 Jul "Shifting North Pole Forces Tampa Airport to Remodel Runways." The Blaze. N.p., n.d. Web. 29 July "NASA - National Aeronautics and Space Administration." NASA. N.p., n.d. Web. 27 July A. W. Hofmann, Sampling mantle heterogeneity through oceanic basalts: isotopes and trace elements. Treatise on Geochemistry Volume 2, pages 61–101 Elsevier Ltd. (2003). 6. Bellis, Mary. "The Compass and Other MagneticÂ Innovations." About.com Inventors. N.p., n.d. Web. 02 Aug "Planetary Science." Planetary Science. N.p., n.d. Web. 27 July

Acknowledgements We would like to thank: the National Science Foundation Appalachian State University the Summer Bridge Program the great and magnificent Dr. Burris Dr. Tashakkori Dr. Schwab Dr. Kurtz Ben Bates the Thoughtful and Selfless Knight