File:1911 Britannica - Atmospheric Electricity - Diurnal Variation.png
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Summary
| Description |
English: Atmospheric electricity. Diurnal Variation Potential Gradient. Illustration from 1911 Encyclopædia Britannica, article Atmospheric Electricity. |
| Date | |
| Source |
Encyclopædia Britannica Eleventh Edition, Vol. 2, Page 863  |
| 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. |  |
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| Date/Time | Thumbnail | Dimensions | User | Comment | |
|---|---|---|---|---|---|
| current | 19:58, 29 November 2013 | | 334 × 580 (167 KB) | Clarice Reis | User created page with UploadWizard |
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