How We Know the Earth Moves (Revised Version)

Duration: 11

Year Published: 1977

Format: 16mm

Color: Color

Description: Uses models and animation to demonstrate that the earth rotates on its axis and revolves about the sun. Points out the observations of the ancient Greeks about the movement of the stars and and describes Foucault's use of a pendulum to prove the rotation of the earth. Explains the revolution of the earth around the sun by the phenomenon of star shift and includes a simple experiment that enables the viewer to experience this effect.

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Indiana University Library Moving Image Archive

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