File:TrecynonIronBridge.jpg
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DescriptionTrecynonIronBridge.jpg |
Built around 1811. OS grid reference SN997037 This cast iron bridge across the River Cynon between Trecynon and Robertstown is one of the oldest surviving "railway" bridges in the world. The bridge was built by the Aberdare Canal Company to carry the tramway that runs from Hirwaun to the canal head at Cwmbach. The Engineering Times Online describes it thus : "Cast iron brackets are built into the stone abutments, and from these spring the four, trussed cast-iron beams which support the deck. These arched beams are only 3in thick, and rise from a depth of more than 5ft at the abutments to 1ft at the bridge's centre. The deck is 36ft 8in long and made up of cast iron plates, each 9ft 11in wide. The tramway is closed and the bridge is now used by pedestrians." Published by Aberdare Blog |
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Source | Aberdare Blog http://www.aberdareblog.co.uk/ | |||
Author | Darren Wyn Rees | |||
Permission (Reusing this file) |
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Date/Time | Thumbnail | Dimensions | User | Comment | |
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current | 17:11, 17 August 2007 | 2,304 × 1,728 (1.34 MB) | Darren Wyn Rees (talk | contribs) | {{Information |Description= |Source=Aberdare Blog http://www.aberdareblog.co.uk/ |Date= |Author=Darren Wyn Rees |Permission={{PD-self}} |other_versions= }} |
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Camera manufacturer | EASTMAN KODAK COMPANY |
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Camera model | KODAK DX6490 ZOOM DIGITAL CAMERA |
Exposure time | 1/125 sec (0.008) |
F-number | f/2.8 |
Date and time of data generation | 15:35, 20 February 2006 |
Lens focal length | 6.3 mm |
Orientation | Normal |
Horizontal resolution | 230 dpi |
Vertical resolution | 230 dpi |
Y and C positioning | Centered |
Exposure Program | Normal program |
Exif version | 2.2 |
Date and time of digitizing | 15:35, 20 February 2006 |
APEX shutter speed | 7 |
APEX aperture | 3 |
APEX exposure bias | 0 |
Maximum land aperture | 3 APEX (f/2.83) |
Metering mode | Pattern |
Light source | Unknown |
Flash | Flash did not fire, compulsory flash suppression |
Color space | sRGB |
Exposure index | 80 |
Sensing method | One-chip color area sensor |
Custom image processing | Normal process |
Exposure mode | Auto exposure |
White balance | Auto white balance |
Digital zoom ratio | 0 |
Focal length in 35 mm film | 38 mm |
Scene capture type | Standard |
Contrast | Normal |
Saturation | Normal |
Sharpness | Normal |
Subject distance range | Unknown |