character: Thomas Edison
topic: Applications of Electromagnetic Waves
grade: 12
subject: Physics
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character: Nikola Tesla
topic: Development of AC Technology
grade: 12
subject: Physics
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character: James Clerk Maxwell
topic: Theory of Electromagnetic Waves
grade: 12
subject: Physics
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character: Heinrich Hertz
topic: Discovery of Radio Waves
grade: 12
subject: Physics
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