character: Isaac Newton
topic: Classical Mechanics
grade: 9
subject: Science
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character: Albert Einstein
topic: General Relativity
grade: 9
subject: Science
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character: Galileo Galilei
topic: Early Physics Concepts
grade: 9
subject: Science
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character: Richard Feynman
topic: Quantum Mechanics and its Relation to Classical Physics
grade: 9
subject: Science
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