File:Magnetic storm diagrams measured from four observation sites.jpg
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English: Magnetic storm charts measured at the same time from four observation sites, in conjunction with The Norwegian Aurora Polaris Expedition 1902-1903.
From the book, The Norwegian Aurora Polaris Expedition 1902-1903, Volume 1: On the Cause of Magnetic Storms and The Origin of Terrestrial Magnetism, Section 2. Chapter VI: p. 556 |
| Date | |
| Source | Sourced from the book, The Norwegian Aurora Polaris Expedition 1902-1903, Volume 1: On the Cause of Magnetic Storms and The Origin of Terrestrial Magnetism, Section 2. Chapter VI: p.667 (published in 1913), By Kristian Birkeland (1867-1917) also on the Web at http://www.catastrophism.com/texts/birkeland/ |
| Author | Kristian Birkeland |
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This work is in the public domain in its country of origin and other countries and areas where the copyright term is the author's life plus 70 years or fewer. This work is in the public domain in the United States because it was published (or registered with the U.S. Copyright Office) before January 1, 1929. |
| This file has been identified as being free of known restrictions under copyright law, including all related and neighboring rights. | |
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| current | 20:04, 29 November 2017 | | 700 × 733 (95 KB) | Frankemann (talk | contribs) | User created page with UploadWizard |
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