Synopsis
Portrays the earth as an astronomical body and discusses its relation to the sun and its motion. Presents evidence of the earth's sphericity, its axis rotation, its revolution about the sun, and inclination of its axis. Permits simulated observation of the earth from the stratosphere, of earth and stars in motion, and of the earth's orbit movement, explaining the causes of night and day and of seasons. For high school, college, and adult groups
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Details
- Running time
- 11 minutes