character: Nicolaus Copernicus
topic: Heliocentrism
grade: 10
subject: Physics
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character: Galileo Galilei
topic: Observational Support for Heliocentrism
grade: 10
subject: Physics
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character: Johannes Kepler
topic: Planetary Motion and Laws
grade: 10
subject: Physics
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character: Isaac Newton
topic: Gravity and the Heliocentric Model
grade: 10
subject: Physics
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