File:Chain Bridge (3361959232).jpg
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Summary edit
DescriptionChain Bridge (3361959232).jpg |
Inscription. In 1797, the merchants of Georgetown built here the first bridge over the Potomac River in order to compete with the Virginia port of Alexandria. The Falls Bridge allowed trade from the "upper country" of Virginia to move directly to Georgetown over the Georgetown-Leesburg Road. After the first two bridges were destroyed by floods, a chain suspension bridge, considered a marvel of engineering with a span of 128 feet between stone towers, was built in 1808. Although this bridge has been replaced by other forms of construction, the popular name Chain Bridge continues to be used. The present bridge was built following the flood of 1936. www.hmdb.org/marker.asp?marker=3339 |
Date | |
Source |
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Author | Cliff from Arlington, Virginia, USA |
Camera location | 38° 55′ 45.32″ N, 77° 07′ 01.64″ W | View this and other nearby images on: OpenStreetMap | 38.929255; -77.117123 |
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This image, originally posted to Flickr, was reviewed on 16 November 2013 by the administrator or reviewer File Upload Bot (Magnus Manske), who confirmed that it was available on Flickr under the stated license on that date. |
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Date/Time | Thumbnail | Dimensions | User | Comment | |
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current | 17:47, 16 November 2013 | 1,200 × 1,600 (684 KB) | File Upload Bot (Magnus Manske) (talk | contribs) | Transferred from Flickr by User:AlbertHerring |
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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 | NIKON |
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Camera model | COOLPIX P6000 |
Exposure time | 1/70 sec (0.014285714285714) |
F-number | f/3.3 |
ISO speed rating | 350 |
Date and time of data generation | 17:50, 16 March 2009 |
Lens focal length | 9 mm |
Latitude | 38° 55′ 45.32″ N |
Longitude | 77° 7′ 1.64″ W |
Orientation | Normal |
Horizontal resolution | 240 dpi |
Vertical resolution | 240 dpi |
Software used | ACD Systems Digital Imaging |
File change date and time | 22:56, 16 March 2009 |
Y and C positioning | Centered |
Exposure Program | Normal program |
Exif version | 2.21 |
Date and time of digitizing | 17:50, 16 March 2009 |
APEX shutter speed | 6.129283 |
APEX aperture | 3.444932 |
APEX exposure bias | 0 |
Maximum land aperture | 2.9 APEX (f/2.73) |
Metering mode | Pattern |
Light source | Unknown |
Flash | Flash did not fire, auto mode |
DateTime subseconds | 359 |
DateTimeOriginal subseconds | 0 |
DateTimeDigitized subseconds | 0 |
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 | 0 |
Focal length in 35 mm film | 42 mm |
Scene capture type | Standard |
Scene control | High gain up |
Contrast | Normal |
Saturation | Normal |
Sharpness | Normal |
Subject distance range | Unknown |
GPS time (atomic clock) | 13:50 |
Satellites used for measurement | 06 |
Geodetic survey data used | WGS-84 |
GPS date | 16 March 2009 |
GPS tag version | 84.64.84.64.05.64.05 |
Width | 3,168 px |
Height | 4,224 px |
Image width | 3,168 px |
Image height | 4,224 px |