Magnetic Force.

Series: Planet Earth Series

Duration: 28

Genre: Educational

Year Published: 1960

Creator: U.S. National Academy of Sciences

Format: 16mm

Color: Color

Sound: sound

Description: Employs animation and live-action photography to show the development of man's knowledge of magnetic force, present-day concepts of the earth's magnetic field, and how the magnetic field is influenced in internal and external forces. Traces the historical development of man's knowledge of magnetism from the early Greeks through Oersted, Ampere, Faraday, to 1960. Cites the present theories relative to the source of the earth's magnetic field and the techniques of measurement employed., Magnetic Force From the series Planet Earth Film Series Produced by Natl Academy Of Sciences; 2101 Constitution Ave NW; Washington; DC ; 20418PC: NAOSCN: Louis De Rochemont AssociatesCC: DEROCH Year published 1960 Grade Level: J H C Distributed on media: 1 film reel (27 min.), optical sound, 16 mm. Color?Color Length: 27 MIN Library of Congress Registration FIA61-664 Description: A study of the earth's magnetic field. Explains the nature and use of magnetism and geo-magnetism. Studies history of magnetism and shows argus experiment and the 'DYNAMO THEORY.'.

Complete Record: Magnetic Force. U.S. National Academy Of Sciences. 27 Min., Sd., Color, 16 Mm. © U.S. National Academy Of Sciences; 1nov60; Mp10981.

Online Copy: https://www.youtube.com/watch?v=ihrd-4VgbIs

Metadata Source:YouTube