Difference between revisions of "Telegraph"
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|name = Telegraph | |name = Telegraph | ||
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| − | + | |TL = 3 | |
| − | + | |Type = Communications gear | |
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| − | |TL = | + | |weight = |
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| − | + | A [[Telegraph]] is a device for transmitting and receiving messages over long distances. A telegraph requires a set of fixed installations. | |
| − | + | There are three general forms of telegraphs | |
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| − | + | An ''optical telegraph'' uses mechanical system of paddles or arms to show characters, or uses lights or series of lights. These are mounted on towers or natural high points and require timing, observation skills, and clear weather to transmit messages. | |
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| − | + | An ''electrical telegraph'' connects two stations with a single wire, and uses a electromagnetic system to send signals between them. | |
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| − | + | is a telegraph consisting of a line of stations in towers or natural high points which signal to each other by means of | |
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| − | + | The word "telegraph" (from Ancient Greek: τῆλε, têle, "at a distance" and γράφειν, gráphein, "to write") was first coined by the French inventor of the Semaphore telegraph, Claude Chappe, who also coined the word "semaphore".[2] | |
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| − | + | A "telegraph" is a device for i.e., for telegraphy. The word "telegraph" alone now generally refers to an electrical telegraph. Wireless telegraphy is transmission of messages over radio with telegraphic codes. | |
| + | {{Basic}} | ||
| + | {{Wikipedia|telegraph}} | ||
| − | {{ | + | {{LEN|Communication|Goods}} |
Revision as of 21:24, 11 June 2021
| Telegraph | |
|---|---|
| Type | Communications gear |
| Tech Level | TL–3 |
| Cost | |
| Size | |
| Weight | |
A Telegraph is a device for transmitting and receiving messages over long distances. A telegraph requires a set of fixed installations.
There are three general forms of telegraphs
An optical telegraph uses mechanical system of paddles or arms to show characters, or uses lights or series of lights. These are mounted on towers or natural high points and require timing, observation skills, and clear weather to transmit messages.
An electrical telegraph connects two stations with a single wire, and uses a electromagnetic system to send signals between them.
is a telegraph consisting of a line of stations in towers or natural high points which signal to each other by means of
The word "telegraph" (from Ancient Greek: τῆλε, têle, "at a distance" and γράφειν, gráphein, "to write") was first coined by the French inventor of the Semaphore telegraph, Claude Chappe, who also coined the word "semaphore".[2]
A "telegraph" is a device for i.e., for telegraphy. The word "telegraph" alone now generally refers to an electrical telegraph. Wireless telegraphy is transmission of messages over radio with telegraphic codes.
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This page uses content from Wikipedia. The original article was at telegraph. The list of authors can be seen in the page history. The text of Wikipedia is available under the Commons Attribution-ShareAlike 3.0 Unported License. |