How can Earth move through space without our feeling its motion? This video segment adapted from NOVA answers this question by dramatizing one of Galileo's thought experiments. [2:42]

Concepts

galileo galilei

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Additional Tags

heliocentric theory, galileo, galileo's thought experiment, pbs learningmedia: galileo's thought experiment, teachers' domain, wgbh, hypothesis

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Classroom Considerations

• Knovation Readability Score: 3 (1 low difficulty, 5 high difficulty)