File:Radon spectrum.png
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Summary[edit]
| Description | Emission spectrum of w:radon, photographed by w:Ernest Rutherford in 1908. Numbers at the side are wavelengths. Middle spectrum is radon, outer two spectra are w:helium (added to calibrate the wavelengths). |
| Date | |
| Source | http://www.periodicvideos.com/videos/086.htm |
| Author | Ernest Rutherford |
Licensing[edit]
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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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| Date/Time | Thumbnail | Dimensions | User | Comment | |
|---|---|---|---|---|---|
| current | 11:50, 28 March 2013 | | 1,366 × 684 (639 KB) | Double sharp (talk | contribs) | |
| 16:02, 27 March 2013 |  | 1,368 × 698 (850 KB) | Double sharp (talk | contribs) | {{Information |Description=Spectrum of w:radon, photographed by w:Ernest Rutherford in 1908. |Source=http://www.periodicvideos.com/videos/086.htm |Date=1908 |Author=Ernest Rutherford |Permission= |other_versions= }} Category:Spectrum [[Cat... |
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