File:In the signal box. (15926238483).jpg
Original file (2,400 × 1,807 pixels, file size: 3.08 MB, MIME type: image/jpeg)
Captions
Summary
[edit]DescriptionIn the signal box. (15926238483).jpg | The first semaphore signals were controlled by levers situated at the signals. Some early signals protruded from the roof of the controlling signal box. Later, remote operation was effected by levers connected to the signal by single wires (UK), pairs of wires (Continental Europe), or pipes supported on rollers (US). The levers were grouped together in a building known as a "signal box" (UK & Australia) or "interlocking tower" (US). In the UK multiple signal wires were grouped together, and in station areas were commonly routed beneath platform faces just above rail level. The operation of a single signal wire would cause some of the adjacent wires to 'jangle', and this noise was one of the many characteristic sounds of railway travel until the gradual introduction of colour-light signals from the mid 20th century. |
Date | |
Source | In the signal box. |
Author | Bernard Spragg. NZ from Christchurch, New Zealand |
Camera location | 44° 15′ 39.68″ S, 171° 07′ 50.97″ E | View this and other nearby images on: OpenStreetMap | -44.261021; 171.130825 |
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Licensing
[edit]This file is made available under the Creative Commons CC0 1.0 Universal Public Domain Dedication. | |
The person who associated a work with this deed has dedicated the work to the public domain by waiving all of their rights to the work worldwide under copyright law, including all related and neighboring rights, to the extent allowed by law. You can copy, modify, distribute and perform the work, even for commercial purposes, all without asking permission.
http://creativecommons.org/publicdomain/zero/1.0/deed.enCC0Creative Commons Zero, Public Domain Dedicationfalsefalse |
This image was originally posted to Flickr by Bernard Spragg at https://flickr.com/photos/88123769@N02/15926238483 (archive). It was reviewed on 22 January 2018 by FlickreviewR 2 and was confirmed to be licensed under the terms of the cc-zero. |
22 January 2018
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Date/Time | Thumbnail | Dimensions | User | Comment | |
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current | 23:10, 22 January 2018 | 2,400 × 1,807 (3.08 MB) | Artix Kreiger 2 (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 | Panasonic |
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Camera model | DMC-FZ200 |
Exposure time | 1/125 sec (0.008) |
F-number | f/4 |
ISO speed rating | 160 |
Date and time of data generation | 11:34, 15 February 2015 |
Lens focal length | 5.3 mm |
Width | 2,400 px |
Height | 1,807 px |
Bits per component |
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Pixel composition | RGB |
Orientation | Normal |
Number of components | 3 |
Horizontal resolution | 180 dpi |
Vertical resolution | 180 dpi |
Software used | Adobe Photoshop Elements 11.0 Windows |
File change date and time | 11:32, 14 January 2018 |
Y and C positioning | Co-sited |
Exposure Program | Normal program |
Exif version | 2.3 |
Date and time of digitizing | 11:34, 15 February 2015 |
Meaning of each component |
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Image compression mode | 4 |
APEX shutter speed | 6.965784 |
APEX aperture | 4 |
APEX exposure bias | 0.33 |
Maximum land aperture | 2.96875 APEX (f/2.8) |
Metering mode | Pattern |
Light source | Unknown |
Flash | Flash did not fire, compulsory flash suppression |
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 | Custom process |
Exposure mode | Auto exposure |
White balance | Auto white balance |
Digital zoom ratio | 0 |
Focal length in 35 mm film | 30 mm |
Scene capture type | Standard |
Scene control | Low gain up |
Contrast | Normal |
Saturation | Normal |
Sharpness | Normal |
Date metadata was last modified | 00:32, 15 January 2018 |
Unique ID of original document | uuid:BF081892ACB5E4118E928A268932B575 |
Copyright status | Copyright status not set |