character: Nikola Tesla
topic: Contributions to Wireless Technology
grade: 9
subject: Science
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character: Guglielmo Marconi
topic: Development of Radio Communication
grade: 9
subject: Science
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character: James Clerk Maxwell
topic: Theoretical Foundations of Electromagnetism
grade: 9
subject: Science
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character: Heinrich Hertz
topic: Experiments in Radio Waves
grade: 9
subject: Science
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