character: Marie Curie
topic: Applications of Waves in Science
grade: 9
subject: Physics
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character: Albert Einstein
topic: Wave-Particle Duality
grade: 9
subject: Physics
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character: Isaac Newton
topic: Sound Waves and Music
grade: 9
subject: Physics
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character: James Clerk Maxwell
topic: Electromagnetic Waves and Their Applications
grade: 9
subject: Physics
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