File:Developing and Producing the B-61 Thermonuclear Bomb.webm

Original file(WebM audio/video file, VP9/Opus, length 26 min 5 s, 960 × 720 pixels, 506 kbps overall, file size: 94.42 MB)

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English: On the development and production of the primary US H-Bomb, the B-61 Thermonuclear Bomb. The B61 is of the variable yield ("dial a yield") design with a yield of 0.3 to 340 kilotons.

Originally a public domain film from the Library of Congress Prelinger Archives, slightly cropped to remove uneven edges, with the aspect ratio corrected, and one-pass brightness-contrast-color correction & mild video noise reduction applied. The soundtrack was also processed with volume normalization, noise reduction, clipping reduction, and/or equalization (the resulting sound, though not perfect, is far less noisy than the original).
Date circa 1970
date QS:P,+1970-00-00T00:00:00Z/9,P1480,Q5727902
Source YouTube: Developing and Producing the B-61 Thermonuclear Bomb ~ 1970 Atomic Energy Commission – View/save archived versions on archive.org and archive.today
Author The Information Division, Albuquerque Operations Office, Video tape 0800072 (U.S. Atomic Energy Commission, dated “1970s,” sanitized and declassified March 1998) 26:29 minutes
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Public domain This image is a work of a United States Department of Energy (or predecessor organization) employee, taken or made as part of that person's official duties. As a work of the U.S. federal government, the image is in the public domain.

Please note that national laboratories operate under varying licences and some are not free. Check the site policies of any national lab before crediting it with this tag.


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Date/TimeThumbnailDimensionsUserComment
current16:56, 21 August 201826 min 5 s, 960 × 720 (94.42 MB)Ras67 (talk | contribs){{Information |description={{en|1=On the development and production of the primary US H-Bomb, the B-61 Thermonuclear Bomb. The B61 is of the variable yield ("dial a yield") design with a yield of 0.3 to 340 kilotons.<br /><br /> Originally a public domain film from the Library of Congress Prelinger Archives, slightly cropped to remove uneven edges, with the aspect ratio corrected, and one-pass brightness-contrast-color correction & mild video noise reduction applied. The soundtrack was also p...

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Format Bitrate Download Status Encode time
VP9 720P 459 kbps Completed 17:16, 21 August 2018 20 min 43 s
Streaming 720p (VP9) 349 kbps Completed 12:15, 13 March 2024 5.0 s
VP9 480P 316 kbps Completed 17:11, 21 August 2018 15 min 3 s
Streaming 480p (VP9) 207 kbps Completed 11:28, 2 February 2024 4.0 s
VP9 360P 234 kbps Completed 17:07, 21 August 2018 10 min 53 s
Streaming 360p (VP9) 124 kbps Completed 17:24, 6 February 2024 2.0 s
VP9 240P 184 kbps Completed 17:05, 21 August 2018 9 min 39 s
Streaming 240p (VP9) Not ready Unknown status
WebM 360P 513 kbps Completed 17:02, 21 August 2018 6 min 26 s
Streaming 144p (MJPEG) 800 kbps Completed 06:20, 3 November 2023 42 s
Stereo (Opus) 85 kbps Completed 20:58, 28 November 2023 28 s
Stereo (MP3) 128 kbps Completed 18:43, 1 November 2023 33 s

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