Image:Carbon-14 with sunspots since 1700.png
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Carbon-14 record for last 1,100 years (inverted scale). Sunspot record since A.D. 1700 shown in red. There is a 20-60 year delay for solar activity to show in carbon-14.
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This image is a work of a United States Geological Survey employee, taken or made during the course of the person's official duties. As a work of the United States Government, the image is in the public domain. For more information, see the USGS copyright policy. See Wikipedia:Public domain and Wikipedia:Copyrights for more details. |  |
Source: http://pubs.usgs.gov/fs/fs-0095-00/
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| Date/Time | Dimensions | User | Comment | |
|---|---|---|---|---|
| current | 21:46, 21 February 2005 | 1,006×332 (24 KB) | SEWilco (Talk | contribs) | (Carbon-14 record for last 1,100 years (inverted scale). Sunspot record since A.D. 1700 shown in red. There is a 20-60 year delay for solar activity to show in carbon-14. {{PD-USGov-Interior-USGS}} Source: http://pubs.usgs.gov/fs/fs-0095-00/) |
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