Real And Apparent Motions
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Uses animation to define real and apparent motions. Shows how real motions of the earth, rotation and revolution combine with the inclination of the axis of the earth to produce apparent motions of the sun and stars.
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Sources
- A-V Online (National Information Center for Educational Media). CD-ROM database of educational and documentary media, compiled and maintained by the National Information Center for Educational Media (NICEM). — title, year, creator, length, format, sound, description
- 16mm Filmography (legacy record) — catalog record
- usgov-av-1974 — title, year, creator, length, color, sound, description
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