character: Dr. Lee
topic: The Physics of Sound
grade: 11
subject: Physics
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character: Albert Einstein
topic: Sound Waves and Relativity
grade: 11
subject: Physics
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character: Isaac Newton
topic: The Nature of Sound and Air Pressure
grade: 11
subject: Physics
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character: Marie Curie
topic: Sound and Vibrations in Different Mediums
grade: 11
subject: Physics
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