File:How a Film Projector Works.webm
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How_a_Film_Projector_Works.webm (file size: 72.86 MB, MIME type: video/webm)
Summary
| Description |
English: Bill tears apart a film projector to reveal the amazing mechanisms used in the pre-digital age to trick the mind into seeing a moving image. He uses high speed photography and animations to show how the projector moves the film intermittently, how a shutter strategically blocks light as the film moves, and how the photo sensor reads the sound. He explains how all these mechanisms are synced. |
| Date | |
| Source | YouTube: https://www.youtube.com/watch?v=En__V0oEJsU – View/save archived versions on archive.org and archive.today |
| Author | engineerguy on YouTube |
Licensing
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This video, screenshot or audio excerpt was released under the Creative Commons license option on YouTube before August 2025. (YouTube changed the license version from CC BY 3.0 to 4.0 on August 1; this was not retroactive.)
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This file is licensed under the Creative Commons Attribution 3.0 Unported license.
Attribution:
Bill Hammack
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This file, which was originally posted to YouTube: How a Film Projector Works (archive), was reviewed on 14 February 2020 by the automatic software YouTubeReviewBot, which confirmed that this video was available there under the stated Creative Commons license on that date. This file should not be deleted if the license has changed in the meantime. The Creative Commons license is irrevocable.
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File history
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| Date/Time | Dimensions | User | Comment | |
|---|---|---|---|---|
| current | 00:21, 31 August 2017 | (72.86 MB) | wikimediacommons>MennasDosbin | User created page with UploadWizard |
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