File:How smoke detectors work.webm

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Original file ‎(WebM audio/video file, VP9/Opus, length 3 min 44 s, 1,920 × 1,080 pixels, 1.11 Mbps overall, file size: 29.67 MB)

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Description
English: Bill takes apart a smoke detector and shows how it uses a radioactive source to generate a tiny current which is disrupted when smoke flows through the sensor. He describes how a special transistor called a MOSFET can be used to detect the tiny current changes.
Date
Source YouTube: How smoke detectors work – View/save archived versions on archive.org and archive.today
Author engineerguy

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Attribution: engineerguy
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File history

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Date/TimeThumbnailDimensionsUserComment
current15:11, 23 July 20223 min 44 s, 1,920 × 1,080 (29.67 MB)HareGovorittKrishna (talk | contribs)Imported media from https://www.youtube.com/watch?v=oFUUQcpGR3k

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Transcode status

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Format Bitrate Download Status Encode time
VP9 1080P 1.01 Mbps Completed 15:18, 23 July 2022 6 min 28 s
Streaming 1080p (VP9) 917 kbps Completed 19:40, 7 February 2024 3.0 s
VP9 720P 605 kbps Completed 15:18, 23 July 2022 6 min 24 s
Streaming 720p (VP9) Not ready Unknown status
VP9 480P 393 kbps Completed 15:16, 23 July 2022 4 min 46 s
Streaming 480p (VP9) 301 kbps Completed 08:29, 18 March 2024 2.0 s
VP9 360P 279 kbps Completed 15:15, 23 July 2022 3 min 25 s
Streaming 360p (VP9) Not ready Unknown status
VP9 240P 208 kbps Completed 15:14, 23 July 2022 2 min 27 s
Streaming 240p (VP9) 116 kbps Completed 06:10, 2 January 2024 1.0 s
WebM 360P 516 kbps Completed 15:14, 23 July 2022 2 min 13 s
Streaming 144p (MJPEG) 1.01 Mbps Completed 23:17, 14 November 2023 12 s
Stereo (Opus) 91 kbps Completed 01:32, 24 November 2023 5.0 s
Stereo (MP3) 128 kbps Completed 19:04, 9 November 2023 6.0 s

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