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Magnetic field of the earth
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1960 (Vervaardig)
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1 transparency : b&w ; 35mm slide
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Magnetic field of the earth. Top chart shows the total field, which has a regular component, as might be produced by a bar magnet in the earth's core and an irregular component. The bottom chart shows the irregular component alone. This is obtained by subtracting a uniform north-south field from the total observed field. In the top chart the arrows indicate the direction in which a compass needle would point if there were no axial field. Runcorn, 1955, Sci. Am., v. 193, no. 3, p. 153.
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Photographer: Unknown
Copyright holder: University of Saskatchewan
Copyright expires: Unknown
Other terms: Responsibility regarding questions of copyright that may arise in the use of any images is assumed by the researcher.