File:Chemillé-sur-Indrois (Indre-et-Loire) (34930530726).jpg
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[edit]DescriptionChemillé-sur-Indrois (Indre-et-Loire) (34930530726).jpg |
Chemillé-sur-Indrois (Indre-et-Loire) Aqueducs gallo-romain de la Ronde et du Gravier. Petites niches, creusées dans le mur de la galerie, destinées à accueillir des lampes.
L'huile d'olive étant très chère, dans les régions septentrionales, on lui préférait l'huile de noix, noisette, de lin, de ricin, de faine de hêtre*, voire le suif. La mèche était constituée de fibres végétales. Pline l'Ancien évoque dans son Histoire naturelle le rouvre*, le lin, le jonc, le bouillon blanc*. Mais en Algérie a été retrouvé dans une lampe antique, un fragment de mêche en laine. (Bussière Jean. Sur une mèche de lampe. In: Antiquités africaines, 7,1973. pp. 255-257; doi : 10.3406/antaf.1973.1452) Sur le même fragment de mêche on a trouvé une teneur importante en sodium. Teneur supérieure à tout les végétaux connus, ce qui amène à la conclusion d'un apport extérieur. Ceci confirme ce que nous dit Hérodote, entre autres, que les grecs se servaient d'un mélange d'huile et de sel. Le sel donne une flamme plus vive et empêche la lampe de chauffer.
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Date | Taken on 25 May 2017, 14:50 |
Source | Chemillé-sur-Indrois (Indre-et-Loire) |
Author | Daniel Jolivet |
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This image was originally posted to Flickr by sybarite48 at https://flickr.com/photos/26082117@N07/34930530726 (archive). It was reviewed on 17 November 2017 by FlickreviewR 2 and was confirmed to be licensed under the terms of the cc-by-2.0. |
17 November 2017
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current | 15:51, 17 November 2017 | 4,928 × 3,264 (9.57 MB) | Thesupermat2 (talk | contribs) | Transferred from Flickr via Flickr2Commons |
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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 | PENTAX |
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Camera model | PENTAX K-5 II |
Author | JOLIVET Daniel |
Copyright holder |
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Exposure time | 1/60 sec (0.016666666666667) |
F-number | f/16 |
ISO speed rating | 200 |
Date and time of data generation | 14:50, 25 May 2017 |
Lens focal length | 26.25 mm |
Short title |
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Image title |
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Orientation | Normal |
Horizontal resolution | 300 dpi |
Vertical resolution | 300 dpi |
Software used | Adobe Photoshop Elements 9.0 Windows |
File change date and time | 15:24, 29 May 2017 |
White point chromaticity |
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Chromaticities of primarities |
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Color space transformation matrix coefficients |
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Y and C positioning | Co-sited |
Exposure Program | Aperture priority |
Exif version | 2.3 |
Date and time of digitizing | 14:50, 25 May 2017 |
Meaning of each component |
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APEX exposure bias | 0 |
Metering mode | Pattern |
Flash | Flash fired, compulsory flash firing |
Supported Flashpix version | 1 |
Color space | Uncalibrated |
Sensing method | One-chip color area sensor |
File source | Digital still camera |
Scene type | A directly photographed image |
Custom image processing | Normal process |
Exposure mode | Auto exposure |
White balance | Auto white balance |
Focal length in 35 mm film | 39 mm |
Scene capture type | Standard |
Contrast | Normal |
Saturation | Normal |
Sharpness | Hard |
Subject distance range | Close view |
GPS tag version | 2.3.0.0 |
Supported Flashpix version | 1 |
Image width | 4,928 px |
Image height | 3,264 px |
Date metadata was last modified | 17:24, 29 May 2017 |
Unique ID of original document | xmp.did:42D25C307244E711A6948A0DD9F250A5 |
Keywords |
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IIM version | 13,263 |