File:DIY Science Hacks- Fresnel Lens.webm

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DIY_Science_Hacks-_Fresnel_Lens.webm (WebM audio/video file, VP8/Vorbis, length 3 min 28 s, 640 × 360 pixels, 914 kbps overall, file size: 22.62 MB)

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Description
English: Using the power of the sun to burn objects and boil water.

Fresnel lenses are used as the screen in old, big-screen TVs (ones that use cathode ray tubes), which means you can find them for free in many alleyways. They can be used for burning and melting objects, and are a ideal source of fire if/when the zombie apocalypse comes.

If you chose to do this at home, use extreme caution as the focal point (aka bright spot) gets upwards of 1,000 K (~ 1300F). So be careful and have fun!
Date
Source YouTube: DIY Science Hacks: Fresnel Lens – View/save archived versions on archive.org and archive.today
Author jen foxbot

Licensing

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This video, screenshot or audio excerpt was originally uploaded on YouTube under a CC license.
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This file is licensed under the Creative Commons Attribution 3.0 Unported license.
Attribution: jen foxbot
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YouTube logo This file, which was originally posted to YouTube: DIY Science Hacks: Fresnel Lens(archive), was reviewed on 13 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/TimeThumbnailDimensionsUserComment
current08:00, 11 July 20183 min 28 s, 640 × 360 (22.62 MB)Vislupus (talk | contribs)Imported media from https://www.youtube.com/watch?v=b-YGCnZy8KE

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Format Bitrate Download Status Encode time
VP9 360P 645 kbps Completed 03:24, 23 August 2018 4 min 2 s
VP9 240P 404 kbps Completed 03:23, 23 August 2018 3 min 9 s
WebM 360P 588 kbps Completed 08:02, 11 July 2018 2 min 14 s
QuickTime 144p (MJPEG) 1.14 Mbps Completed 14:31, 21 October 2024 40 s

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