File:Semaphore Tower at Ramsagar of Bankura district in West Bengal 03.jpg
Original file (3,872 × 2,592 pixels, file size: 5.66 MB, MIME type: image/jpeg)
Captions
Summary
[edit]DescriptionSemaphore Tower at Ramsagar of Bankura district in West Bengal 03.jpg |
English: The optical telegraph system in India was first suggested in the early 1800s for military use. A survey line was to be set up between Calcutta and Chunar in Uttar Pradesh, and towers built along the route at different stations including Howrah, Hooghly, Purulia, Hazaribagh and Gaya along the Old Benaras Road or Military Road (later replaced by G.T. Road).
An account in Anton A. Huurdeman’s book Worldwide History of Telecommunications, states that there were as many as 45 semaphore towers built along the Calcutta-Chunar line. It is hard to say how many of those still remain, but about 18 have been located so far. After limited use, with mounting costs, the Calcutta-Chunar line was abandoned as a failed project in 1828. The photograph though taken in 2013 is included inside the photographs related to the Wiki exploration project - "Wiki explores Semaphore Towers - Phase 1" conducted in September 2022. This semaphore tower at Ramsagar has been struck by lightning and has broken down since long. The area was inaccessible during the project due to presence of a chest deep water filled canal in between. Drone photography is also not possible due to presence of several high tension pillars around. So old photographs of the Tower is submitted. |
Date | |
Source | Own work |
Author | Amitabha Gupta |
Camera location | 23° 06′ 52.16″ N, 87° 16′ 24.24″ E | View this and other nearby images on: OpenStreetMap | 23.114488; 87.273399 |
---|
Licensing
[edit]- You are free:
- to share – to copy, distribute and transmit the work
- to remix – to adapt the work
- Under the following conditions:
- attribution – You must give appropriate credit, provide a link to the license, and indicate if changes were made. You may do so in any reasonable manner, but not in any way that suggests the licensor endorses you or your use.
File history
Click on a date/time to view the file as it appeared at that time.
Date/Time | Thumbnail | Dimensions | User | Comment | |
---|---|---|---|---|---|
current | 09:49, 5 December 2022 | 3,872 × 2,592 (5.66 MB) | Amitabha Gupta (talk | contribs) | Uploaded own work with UploadWizard |
You cannot overwrite this file.
File usage on Commons
There are no pages that use this file.
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 |
---|---|
Camera model | PENTAX K200D |
Exposure time | 1/30 sec (0.033333333333333) |
F-number | f/13 |
ISO speed rating | 100 |
Date and time of data generation | 11:43, 7 July 2013 |
Lens focal length | 18 mm |
Orientation | Normal |
Horizontal resolution | 72 dpi |
Vertical resolution | 72 dpi |
Software used | Adobe Photoshop CS3 Windows |
File change date and time | 14:33, 5 December 2022 |
Y and C positioning | Co-sited |
Exposure Program | Manual |
Exif version | 2.21 |
Date and time of digitizing | 11:43, 7 July 2013 |
Meaning of each component |
|
APEX exposure bias | 0 |
Metering mode | Pattern |
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 | Normal process |
Exposure mode | Auto bracket |
White balance | Auto white balance |
Focal length in 35 mm film | 27 mm |
Scene capture type | Standard |
Contrast | Normal |
Saturation | Normal |
Sharpness | Hard |
Subject distance range | Distant view |
Supported Flashpix version | 1 |
Image width | 3,872 px |
Image height | 2,592 px |
Date metadata was last modified | 20:03, 5 December 2022 |
IIM version | 7,440 |