File:Free energy against SF.png
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| Date/Time | Thumbnail | Dimensions | User | Comment | |
|---|---|---|---|---|---|
| current | 20:31, 20 March 2017 | | 3,216 × 2,461 (42 KB) | Cmc314 (talk | contribs) | |
| 20:29, 20 March 2017 |  | 3,216 × 2,461 (42 KB) | Cmc314 (talk | contribs) |
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