character: Niels Bohr
topic: Contributions to Quantum Mechanics
grade: 9
subject: Science
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character: Max Planck
topic: Introduction of Quantum Theory
grade: 9
subject: Science
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character: Albert Einstein
topic: Photoelectric Effect and Quantum Theory
grade: 9
subject: Science
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character: Werner Heisenberg
topic: Uncertainty Principle in Quantum Mechanics
grade: 9
subject: Science
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