File:Hafele–Keating experiment.jpg
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Summary
[edit]
| Description | Hafele–Keating experiment, showing the physicists sitting with their atomic clocks and a stewardess aboard a commercial airliner |
|---|---|
| Author or copyright owner |
unknown, not credited in the magazine |
| Source (WP:NFCC#4) | Original publication: From Popular Mechanics, January 1972, p. 30 Immediate a scan of a paper copy of the magazine |
| Date of publication | January 1972 |
| Use in article (WP:NFCC#7) | Hafele–Keating experiment |
| Purpose of use in article (WP:NFCC#8) | This is a photo showing a historically important scientific experiment, which is the subject of the article. |
| Not replaceable with free media because (WP:NFCC#1) |
It's a photo of a historic experiment in progress. |
| Minimal use (WP:NFCC#3) | It's only one image, it's only being used in one article, and it's at low resolution. |
| Respect for commercial opportunities (WP:NFCC#2) |
There is no competing market for the photo. The copyright may not even belong to Popular Mechanics, which did not include a copyright or photo credit in the magazine for this photo. Popular Mechanics does not sell back issues from 1972. |
| Fair useFair use of copyrighted material in the context of Hafele–Keating experiment//en.wikipedia.org/wiki/File:Hafele%E2%80%93Keating_experiment.jpgtrue | |
Licensing
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 | This image is a faithful digitisation of a unique historic image, and the copyright for it is most likely held by the person who created the image or the agency employing the person. It is believed that the use of this image may qualify as non-free use under the Copyright law of the United States. Any other uses of this image, on Wikipedia or elsewhere, may be copyright infringement. See Wikipedia:Non-free content for more information. Please remember that the non-free content criteria require that non-free images on Wikipedia must not "[be] used in a manner that is likely to replace the original market role of the original copyrighted media." Use of historic images from press agencies must only be of a transformative nature, when the image itself is the subject of commentary rather than the event it depicts (which is the original market role, and is not allowed per policy). |
| If this tag does not accurately describe this image, please replace it with an appropriate one. | |
File history
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| Date/Time | Thumbnail | Dimensions | User | Comment | |
|---|---|---|---|---|---|
| current | 22:04, 2 January 2018 | | 273 × 364 (24 KB) | DatBot (talk | contribs) | Reduce size of non-free image (BOT - disable) |
| 04:33, 23 August 2012 | No thumbnail | 300 × 400 (38 KB) | Fashionslide (talk | contribs) | Uploading a non-free file using File Upload Wizard |
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File usage
The following 2 pages use this file:
- Hafele–Keating experiment
- File:Hafele-Keating experiment.jpg (file redirect)
