character: Alexander Graham Bell
topic: Invention of the Telephone and Its Impact on Telecommunication
grade: 10
subject: Physics
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character: Thomas Edison
topic: Contributions to Electrical Engineering and Communication Technologies
grade: 10
subject: Physics
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character: Nikola Tesla
topic: Innovations in Electricity and Wireless Communication
grade: 10
subject: Physics
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character: Guglielmo Marconi
topic: Development of Radio Communication and Its Relation to Bell's Work
grade: 10
subject: Physics
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