16mm Filmography
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Hidden Earth (Seismology)

Genre: Educational

Creator: Natl Academy Of Sciences

Format: 16mm

Sound: sound

Description: Traces the history of man's endeavors to study the earth's interior and describes modern instruments and techniques. Explains the significance of volcanic eruptions and earthquakes, discusses theories regarding the solar system and the changes in the surface of the earth.

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Original permalink · Record added: 2023-02-28 05:44:50