File:Hughes printing telegraph, 1860. (9663805708).jpg
Size of this preview: 467 × 600 pixels. Other resolutions: 187 × 240 pixels | 374 × 480 pixels | 973 × 1,250 pixels.
Original file (973 × 1,250 pixels, file size: 194 KB, MIME type: image/jpeg)
File information
Structured data
Captions
Summary edit
DescriptionHughes printing telegraph, 1860. (9663805708).jpg | The British physicist David Edward Hughes (1831-1900) was born in Wales but emigrated to the United States, where he invented this successful telegraph in 1855. It was the first telegraph system which printed the text at the sending and receiving ends, thus abolishing the need for a special alphabetic code. The telegraph employs synchronised type-wheels at each end of the line. Pressing the keys raises pins opposite the required letters. When a pin makes contact, a hammer at the far end pushes the paper against the type-wheel there and prints the corresponding letter. An experienced operator could send messages of up to 30 words a minute using this telegraph. The system was mainly used on cable routes from Britain to Europe. |
Date | |
Source |
Hughes' printing telegraph, 1860.
|
Author | Science Museum London / Science and Society Picture Library |
Licensing edit
This file is licensed under the Creative Commons Attribution-Share Alike 2.0 Generic license.
- 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.
- share alike – If you remix, transform, or build upon the material, you must distribute your contributions under the same or compatible license as the original.
This image, originally posted to Flickr, was reviewed on 3 September 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. |
File history
Click on a date/time to view the file as it appeared at that time.
Date/Time | Thumbnail | Dimensions | User | Comment | |
---|---|---|---|---|---|
current | 10:25, 3 September 2013 | 973 × 1,250 (194 KB) | File Upload Bot (Magnus Manske) (talk | contribs) | Transferred from Flickr by User:Mrjohncummings |
You cannot overwrite this file.
File usage on Commons
There are no pages that use this file.
File usage on other wikis
The following other wikis use this file:
- Usage on de.wikipedia.org
- Usage on en.wikipedia.org
- Usage on lt.wikipedia.org
- Usage on uk.wikipedia.org
- Usage on www.wikidata.org
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.
Image title |
|
---|---|
Author | Science Museum |
Copyright holder |
|
Source | TLCC100151 |
Online copyright statement | www.nmsi.ac.uk/piclib/ |
Short title |
|
Width | 2,727 px |
Height | 3,504 px |
Bits per component |
|
Pixel composition | RGB |
Orientation | Normal |
Number of components | 3 |
Horizontal resolution | 300 dpi |
Vertical resolution | 300 dpi |
Software used | Adobe Photoshop CS6 (Macintosh) |
File change date and time | 15:11, 28 August 2013 |
Exif version | 2.21 |
Color space | Uncalibrated |
Special instructions | Science & Society Picture Library
020 7942 4400 piclib@nmsi.ac.uk |
Urgency | 5 |
Category | Telecommunications |
Unique ID of original document | adobe:docid:photoshop:0617d484-ec2c-11d6-af50-eb574c05242f |
Copyright status | Copyrighted |
Date and time of digitizing | 13:17, 28 August 2013 |
Date metadata was last modified | 16:11, 28 August 2013 |
Keywords | Typewriting; Printing; Telegraphs; electrical communication devices; transmitters; receivers |
Country shown | United States |
IIM version | 2 |