File:Plastic fruit tray showing photoelasticity through crossed polarisers.webm

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Original file (WebM audio/video file, VP8, length 31 s, 1,920 × 1,080 pixels, 14.28 Mbps overall, file size: 53.06 MB)

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Summary

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Description
English: Disposable plastic fruit tray/punnet showing photoelasticity through crossed polarisers/polarizers This is a completely ordinary disposable tray that once contained some plums. The underside says "01 R-PET" within/beside the recycling triangle (which indicates what it's made from, and may be relevant here). It also says "Infia" (the manufacturer's name), "www.infia.it", "MOD. K30" (the model, apparently), "11" and has the "food safe" symbol (in reverse, or to be viewed from opposite side, for some reason).



Notes: (i) The light source is an LCD monitor (which also incorporates the first polarising/polarizing filter). Use of a monitor means the light will also have passed through the R, G and B filters (i.e. the "white" light is assumed not to be continuous spectrum, which may have an effect on the final result). (ii) The second polarising filter- on the camera- is turned 90 degrees so that little direct light is visible. (iii) Aside from transcoding, this is the original video as it came out of the camera; the saturation, brightness and contrast have not been altered- yes, the colours did come out like that!

Thank you to Colin (talk · contribs), whose picture of the day provided the inspiration for this video.
Date
Source Own work
Author Multicherry
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Derivative works of this file:  Plastic fruit tray showing photoelasticity through crossed polarisers (crop frame).jpg: 

Reference shot of original plastic tray

This upload to Wikimedia Commons is the first publication of this work.

Licensing

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Multicherry, the copyright holder of this work, hereby publishes it under the following license:
w:en:Creative Commons
attribution share alike
This file is licensed under the Creative Commons Attribution-Share Alike 4.0 International license.
Attribution: Multicherry
You are free:
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Under the following conditions:
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  • share alike – If you remix, transform, or build upon the material, you must distribute your contributions under the same or compatible license as the original.

File history

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Date/TimeThumbnailDimensionsUserComment
current21:18, 22 April 201831 s, 1,920 × 1,080 (53.06 MB)Multicherry (talk | contribs)Videoconvert upload from toollabs

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Transcode status

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Format Bitrate Download Status Encode time
VP9 1080P 5.11 Mbps Completed 20:58, 13 October 2018 2 min 52 s
VP9 720P 2.55 Mbps Completed 20:57, 13 October 2018 1 min 44 s
VP9 480P 1.27 Mbps Completed 20:57, 13 October 2018 1 min 12 s
VP9 360P 626 kbps Completed 20:56, 13 October 2018 50 s
VP9 240P 314 kbps Completed 20:56, 13 October 2018 41 s
WebM 360P 516 kbps Completed 21:19, 22 April 2018 35 s
QuickTime 144p (MJPEG) Not ready Unknown status

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