File:Sirena del mercat central d'Alacant.JPG
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Size of this preview: 397 × 600 pixels. Other resolutions: 159 × 240 pixels | 317 × 480 pixels | 508 × 768 pixels | 677 × 1,024 pixels | 1,355 × 2,048 pixels | 2,841 × 4,293 pixels.
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[edit]DescriptionSirena del mercat central d'Alacant.JPG |
Català: Sirena del mercat central d'Alacant.
Situada durant dècades sobre la façana frontal del mercat central, aquest doble cilindre tenia la funció d'avisar a la població dels atacs aeris durant la guerra civil. Aquests avions apareixien amb el sol a l'esquena, provinents quasi sempre de Mallorca per a no ser captats pels fonolocalitzadors situats als afores de la ciutat. El 25 de maig de 1938, les bateries antiaèries no foren capaces de detectar l'arribada dels avions fins que estigueren situats pràcticament sobre els ciutadans. L'alarma d'aquesta sirena només va poder sonar quan ja queien les primeres bombes. |
Date | |
Source | Own work |
Author | Joanbanjo |
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Date/Time | Thumbnail | Dimensions | User | Comment | |
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current | 02:48, 29 February 2016 | 2,841 × 4,293 (1.67 MB) | Joanbanjo (talk | contribs) | User created page with UploadWizard |
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Camera manufacturer | NIKON CORPORATION |
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Camera model | NIKON D3100 |
Exposure time | 1/60 sec (0.016666666666667) |
F-number | f/5.3 |
ISO speed rating | 1,000 |
Date and time of data generation | 10:06, 9 February 2016 |
Lens focal length | 46 mm |
Orientation | Normal |
Horizontal resolution | 300 dpi |
Vertical resolution | 300 dpi |
Software used | Microsoft Windows Photo Gallery 6.0.6000.16385 |
File change date and time | 00:38, 12 February 2016 |
Y and C positioning | Co-sited |
Exposure Program | Not defined |
Exif version | 2.21 |
Date and time of digitizing | 22:19, 11 February 2016 |
Meaning of each component |
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Image compression mode | 4 |
APEX exposure bias | 0 |
Maximum land aperture | 4.8 APEX (f/5.28) |
Metering mode | Pattern |
Light source | Unknown |
Flash | Flash did not fire, auto mode |
DateTime subseconds | 00 |
DateTimeOriginal subseconds | 00 |
DateTimeDigitized subseconds | 00 |
Supported Flashpix version | 1 |
Color space | sRGB |
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 |
Digital zoom ratio | 1 |
Focal length in 35 mm film | 69 mm |
Scene capture type | Standard |
Scene control | High gain up |
Contrast | Normal |
Saturation | Normal |
Sharpness | Normal |
Subject distance range | Unknown |
Unique image ID | 932F40C06E7D4643A655D456E5546356 |
GPS tag version | 2.2.0.0 |
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