The Earth in motion
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Deals with the dynamic aspects of the earth as a planet. Demonstrates: 1. Sphericity. - 2. Axis rotation established by star trails and the Foucault pendulum. - 3. Revolution around the sun by the motion of the sun in respect of the stars and by the annual parallax of the stars.
Sources
- 16mm Filmography (legacy record) — title, description, catalog record
- Educational Film Guide 1946 — title, year, creator, length, sound, description, catalog record
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