File:Friction d'une allumette.jpg
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Summary
[edit]| DescriptionFriction d'une allumette.jpg |
Français : Friction d'une allumette sur un grattoir capturé en haute vitesse à l'aide d'un automate de prise de vue. La technique de l'Open Flash a été utilisée : le déclenchement des flashs a été commandé par un capteur de vibrations (piezzo) avec un décalage de 20 ms. Vitesse de capture d'environ 1/35000ème.
English: Friction of a match on a scraper captured in high speed using an automated camera. The Open Flash technique was used: the triggering of the flashes was controlled by a vibration sensor (piezzo) with a delay of 20 ms. Capture speed of approximately 1/35000th.
Deutsch: Reibung eines Streichholzes auf einer Reibefläche, aufgenommen mit einer automatisierten Kamera in Hochgeschwindigkeit. Es wurde die Open-Flash-Technik verwendet: Die Auslösung der Blitze wurde durch einen Vibrationssensor (Piezometer) mit einer Verzögerung von 20 ms gesteuert. Aufnahmegeschwindigkeit von etwa 1/35000.
العربية: تم التقاط احتكاك عود الثقاب على مكشطة بسرعة عالية باستخدام كاميرا آلية. تم استخدام تقنية Open Flash: تم التحكم في تشغيل الومضات بواسطة مستشعر اهتزاز (بيزو) مع تأخير قدره 20 مللي ثانية. سرعة الالتقاط حوالي 1/35000th.
Українська: Момент загорання сірника від тертя, знятий на швидкісну автоматичну камеру. |
| Date | |
| Source | Own work |
| Author | Yann SEGALEN |
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This image was selected as picture of the day on Vietnamese Wikipedia for 28 October 2025.
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[edit]I, the copyright holder of this work, hereby publish it under the following license:
This file is licensed under the Creative Commons Attribution-Share Alike 4.0 International license.
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- to share – to copy, distribute and transmit the work
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| Date/Time | Thumbnail | Dimensions | User | Comment | |
|---|---|---|---|---|---|
| current | 22:13, 4 February 2018 | 4,432 × 3,324 (5.05 MB) | Yann SEGALEN (talk | contribs) | Cross-wiki upload from fr.wikipedia.org |
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- User:BucketOfSquirrels/Photos2025
- User:Derbeth/Various favs
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- User talk:Yann SEGALEN
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- Commons:Featured picture candidates/File:Friction d'une allumette.jpg
- Commons:Featured picture candidates/Log/December 2024
- Commons:Featured pictures/Photo techniques/Styles and Techniques
- Commons:Featured pictures/chronological/2024-B
- Commons:Featured pictures/chronological/December 2024
- Commons:Picture of the Year/2024/Results/All
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Metadata
This file contains additional information such as Exif metadata which may have been added by the digital camera, scanner, or software program used to create or digitize it. If the file has been modified from its original state, some details such as the timestamp may not fully reflect those of the original file. The timestamp is only as accurate as the clock in the camera, and it may be completely wrong.
| Camera manufacturer | Canon |
|---|---|
| Camera model | Canon EOS 7D Mark II |
| Author | Yann SEGALEN |
| Exposure time | 32/5 sec (6.4) |
| F-number | f/16 |
| ISO speed rating | 100 |
| Date and time of data generation | 12:45, 29 January 2018 |
| Lens focal length | 105 mm |
| Orientation | Normal |
| Horizontal resolution | 300 dpi |
| Vertical resolution | 300 dpi |
| Software used | Adobe Photoshop CC 2017 (Windows) |
| File change date and time | 14:19, 29 January 2018 |
| Exposure Program | 9 |
| Exif version | 2.3 |
| Date and time of digitizing | 12:45, 29 January 2018 |
| APEX shutter speed | −2.678072 |
| APEX aperture | 8 |
| APEX exposure bias | 0 |
| Maximum land aperture | 3 APEX (f/2.83) |
| Metering mode | Pattern |
| Flash | Flash did not fire, compulsory flash suppression |
| DateTime subseconds | 03 |
| DateTimeOriginal subseconds | 03 |
| DateTimeDigitized subseconds | 03 |
| Color space | sRGB |
| Focal plane X resolution | 2,439.5010070801 |
| Focal plane Y resolution | 2,439.5010070801 |
| Focal plane resolution unit | 3 |
| Custom image processing | Normal process |
| Exposure mode | Auto exposure |
| White balance | Auto white balance |
| Scene capture type | Standard |
| Serial number of camera | 058021006076 |
| Lens used | 105mm |
| Rating (out of 5) | 0 |
| Date metadata was last modified | 15:19, 29 January 2018 |
| Unique ID of original document | 35E1B97B047486B271A5907BD531D733 |
Structured data
some value
29 January 2018
6.4 second
16
105 millimetre
100
image/jpeg
5,292,910 byte
3,324 pixel
4,432 pixel
82563c64b03700bea17f2b56aad42ef7d0027e10
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