File:1911 Britannica - Aurora Polaris - Auroral arcs.png
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1911_Britannica_-_Aurora_Polaris_-_Auroral_arcs.png (503 × 352 pixels, file size: 193 KB, MIME type: image/png)
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Summary
| Description |
English: Two types of auroral arcs. Illustration from 1911 Encyclopædia Britannica, article Aurora Polaris. |
| Date | |
| Source |
Encyclopædia Britannica Eleventh Edition, Vol. 2, Plate I.  |
| Author | Encyclopædia Britannica, 1911 |
Licensing
|
This image comes from the 13th edition of the Encyclopædia Britannica or earlier. The copyrights for that book have expired in the United States because the book was first published in the US with the publication occurring before January 1, 1929. As such, this image is in the public domain in the United States. |  |
File history
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| Date/Time | Thumbnail | Dimensions | User | Comment | |
|---|---|---|---|---|---|
| current | 17:06, 7 December 2013 | | 503 × 352 (193 KB) | Clarice Reis | User created page with UploadWizard |
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