character: Nikola Tesla
topic: Contributions to Radio Technology and Electromagnetic Waves
grade: 9
subject: Science
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character: Guglielmo Marconi
topic: Pioneering Radio Transmission and Communication
grade: 9
subject: Science
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character: James Clerk Maxwell
topic: Theories on Electromagnetic Waves
grade: 9
subject: Science
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character: Heinrich Hertz
topic: Experimental Verification of Electromagnetic Waves
grade: 9
subject: Science
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