telegraphy
n. installation and operation of telegraph systems | ||||
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Telegraphy definition was found in categories: Language, Idioms & Slang(3) Science & Technology(1) Society & Culture(1) Encyclopedia(1)
Telegraphy Definition from Language, Idioms & Slang Dictionaries & Glossaries
| Webster's Revised Unabridged Dictionary (1913) |
Telegraphy
(n.)
The science or art of constructing, or of communicating by means of, telegraphs; as, submarine telegraphy.
(n.)
The science or art of constructing, or of communicating by means of, telegraphs; as, submarine telegraphy.
| WordNet 2.0 |
telegraphy
Noun
1. communicating at a distance by electric transmission over wire
(hypernym) telecommunication, telecom
(class) cable, telegraph, wire
2. apparatus used to communicate at a distance over a wire (usually in Morse code)
(synonym) telegraph
(hypernym) apparatus, setup
Noun
1. communicating at a distance by electric transmission over wire
(hypernym) telecommunication, telecom
(class) cable, telegraph, wire
2. apparatus used to communicate at a distance over a wire (usually in Morse code)
(synonym) telegraph
(hypernym) apparatus, setup
| hEnglish - advanced version |
telegraphy
telegraphy
telephone \tel"e*phone\ (?), n. [gr. &?; far off + &?; sound.] (physics) an instrument for reproducing sounds, especially articulate speech, at a distance.
note: the ordinary telephone consists essentially of a device by which currents of electricity, produced by sounds through the agency of certain mechanical devices and exactly corresponding in duration and intensity to the vibrations of the air which attend them, are transmitted to a distant station, and there, acting on suitable mechanism, reproduce similar sounds by repeating the vibrations. the necessary variations in the electrical currents are usually produced by means of a microphone attached to a thin diaphragm upon which the voice acts, and are intensified by means of an induction coil. in the magnetic telephone, or magneto-telephone, the diaphragm is of soft iron placed close to the pole of a magnet upon which is wound a coil of fine wire, and its vibrations produce corresponding vibrable currents in the wire by induction. the mechanical, or string, telephone is a device in which the voice or sound causes vibrations in a thin diaphragm, which are directly transmitted along a wire or string connecting it to a similar diaphragm at the remote station, thus reproducing the sound. it does not employ electricity.
similar words(5)
electro-telegraphy
duplex telegraphy
wireless telegraphy
telegraphy or telegraph
hertzian telegraphy
telegraphy
telephone \tel"e*phone\ (?), n. [gr. &?; far off + &?; sound.] (physics) an instrument for reproducing sounds, especially articulate speech, at a distance.
note: the ordinary telephone consists essentially of a device by which currents of electricity, produced by sounds through the agency of certain mechanical devices and exactly corresponding in duration and intensity to the vibrations of the air which attend them, are transmitted to a distant station, and there, acting on suitable mechanism, reproduce similar sounds by repeating the vibrations. the necessary variations in the electrical currents are usually produced by means of a microphone attached to a thin diaphragm upon which the voice acts, and are intensified by means of an induction coil. in the magnetic telephone, or magneto-telephone, the diaphragm is of soft iron placed close to the pole of a magnet upon which is wound a coil of fine wire, and its vibrations produce corresponding vibrable currents in the wire by induction. the mechanical, or string, telephone is a device in which the voice or sound causes vibrations in a thin diaphragm, which are directly transmitted along a wire or string connecting it to a similar diaphragm at the remote station, thus reproducing the sound. it does not employ electricity.
similar words(5)
electro-telegraphy
duplex telegraphy
wireless telegraphy
telegraphy or telegraph
hertzian telegraphy
Telegraphy Definition from Science & Technology Dictionaries & Glossaries
| Telecommunication Standard Terms |
telegraphy
A form of telecommunication which is concerned in any process providing transmission and reproduction at a distance of documentary matter, such as written or printed matter or fixed images, or the reproduction at a distance of any kind of information in such a form. For the purposes of the Radio Regulations , unless otherwise specified therein, telegraphy shall mean a form of telecommunication for the transmission of written matter by the use of a signal code. [NTIA] [RR]
A form of telecommunication which is concerned in any process providing transmission and reproduction at a distance of documentary matter, such as written or printed matter or fixed images, or the reproduction at a distance of any kind of information in such a form. For the purposes of the Radio Regulations , unless otherwise specified therein, telegraphy shall mean a form of telecommunication for the transmission of written matter by the use of a signal code. [NTIA] [RR]
Telegraphy Definition from Society & Culture Dictionaries & Glossaries
| Amateur Radio Glossary |
Telegraphy Definition from Encyclopedia Dictionaries & Glossaries
| Wikipedia English - The Free Encyclopedia |
Telegraphy
Telegraphy (from the Greek words (τηλη) = far and (γραφειν) = write) is the long-distance transmission of written messages without physical transport of letters, originally by changing something that could be observed from a distance (optical telegraphy). Radiotelegraphy or wireless telegraphy transmits messages using radio. Telegraphy includes recent forms of data transmission such as fax, email, and computer networks in general. (A telegraph is a machine for transmitting and receiving messages over long distances, i.e., for telegraphy. The word telegraph alone generally refers to an electrical telegraph). Wireless telegraphy is also known as CW, for continuous wave (a carrier modulated by on-off keying, as opposed to the earlier radio technique using a spark gap).
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