File:Zen and the Art of Rockbolting.webm
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Zen_and_the_Art_of_Rockbolting.webm (WebM audio/video file, VP8/Vorbis, length 32 min 58 s, 640 × 480 pixels, 1.55 Mbps overall, file size: 366.2 MB)
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Summary[edit]
| Description |
English: A video on mining safely using rock bolts. |
| Date | |
| Source | YouTube – View/save archived versions on archive.org and archive.today |
| Author | National Institute for Occupational Safety and Health |
Licensing[edit]
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This image is a work of the National Institute for Occupational Safety and Health, part of the Centers for Disease Control and Prevention in the United States Department of Health and Human Services, taken or made as part of an employee's official duties. As a work of the U.S. federal government, the image is in the public domain.
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| Date/Time | Thumbnail | Dimensions | User | Comment | |
|---|---|---|---|---|---|
| current | 18:13, 7 November 2016 | 32 min 58 s, 640 × 480 (366.2 MB) | James Hare (NIOSH) (talk | contribs) | c:User:Rillke/bigChunkedUpload.js: Higher quality version | |
| 01:40, 26 February 2016 | 32 min 58 s, 480 × 360 (70.79 MB) | James Hare (NIOSH) (talk | contribs) | User created page with UploadWizard |
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