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http://www.biography.com/people/nikola-tesla-9504443#synopsis

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http://www.pbs.org/newshour/rundown/5-things-you-didnt-know-about-nikola-tesla/

Knight, Randall Dewey.  Physics for Scientists and Engineers, a Strategic Approach with Modern Physics. 3rd ed. Boston, MA: Pearson, 2013. Print.