character: George Westinghouse
topic: Advocate for AC Power
grade: 11
subject: Science
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character: Nikola Tesla
topic: Collaboration with Westinghouse on AC Power
grade: 11
subject: Science
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character: Thomas Edison
topic: Opposition to AC Power
grade: 11
subject: Science
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character: William Thomson (Lord Kelvin)
topic: Contributions to Electrical Engineering
grade: 11
subject: Science
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