Dictionary » T » Telegraph



To convey or announce by telegraph.

Origin: F. Telegraphier.

An apparatus, or a process, for communicating intelligence rapidly between distant points, especially by means of preconcerted visible or audible signals representing words or ideas, or by means of words and signs, transmitted by electrical action.

The instruments used are classed as indicator, type-printing, symbol-printing, or chemical-printing telegraphs, according as the intelligence is given by the movements of a pointer or indicator, as in Cooke & Wheatstone's (the form commonly used in England), or by impressing, on a fillet of paper, letters from types, as in House's and Hughe's, or dots and marks from a sharp point moved by a magnet, as in Morse's, or symbols produced by electrochemical action, as in Bain's. In the offices in the united states the recording instrument is now little used, the receiving operator reading by ear the combinations of long and short intervals of sound produced by the armature of an electromagnet as it is put in motion by the opening and breaking of the circuit, which motion, in registering instruments, traces upon a ribbon of paper the lines and dots used to represent the letters of the alphabet. Acoustic telegraph. See Acoustic. Dial telegraph, a telegraph in which letters of the alphabet and numbers or other symbols are placed upon the border]] of a circular dial plate at each station, the apparatus being so arranged that the needle or index of the dial at the receiving station accurately copies the movements of that at the sending station. Electric telegraph, or electromagnetic telegraph, a telegraph in which an operator at one station causes words or signs to be made at another by means of a current of electricity, generated by a battery and transmitted over an intervening wire. Facsimile telegraph. See Facsimile. Indicator telegraph. See Indicator. Pan-telegraph, an electric telegraph by means of which a drawing or writing, as an autographic message, may be exactly reproduced at a distant station. Printing telegraph, an electric telegraph which automatically prints the message as it is received at a distant station, in letters, not signs. Signal telegraph, a telegraph in which preconcerted signals, made by a machine, or otherwise, at one station, are seen or heard and interpreted at another; a semaphore. Submarine telegraph cable, a telegraph cable laid under water to connect stations separated by a body of water. Telegraph cable, a telegraphic cable consisting of several conducting wires, inclosed by an insulating and protecting material, so as to bring the wires into compact compass for use on poles, or to form a strong cable impervious to water, to be laid under ground, as in a town or city, or under water, as in the ocean.

(Science: botany) Telegraph plant, a leguminous plant (Desmodium gyrans) native of the East Indies. The leaflets move up and down like the signals of a semaphore.

Origin: Gr. Far, far off (cf. Lith. Toli) _ -graph: cf. F. Telegraphe. See Graphic.

Please contribute to this project, if you have more information about this term feel free to edit this page

Results from our forum

Re: Camouflage in nature

... a state of a perfect camouflage (I’m not gonna count them, the examples observed in nature are pretty impressive – that’s one more link http://www.telegraph.co.uk/earth/earthpicturegalleries/8940584/Animal-camouflage-can-you-spot-these-masters-of-disguise-playing-hide-and-seek.html ). If we want ...

See entire post
by Nick7
Fri Dec 16, 2011 11:38 pm
Forum: Evolution
Topic: Camouflage in nature
Replies: 16
Views: 16767


... achievement was coming second to George Bush) for complex scientific evidence Would you believe... "High School Physics" ? http://blogs.telegraph.co.uk/news/jamesdelingpole/100107989/gore-fakes-proof-of-man-made-global-warming-shock/ http://wattsupwiththat.com/2011/09/28/video-analysis-and-scene-replication-suggests-that-al-gores-climate-reality-project-fabricated-their-climate-101-video-simple-experiment/ ...

See entire post
by Crucible
Fri Oct 14, 2011 12:30 am
Forum: Ecology
Topic: Anthropogenic global warming?
Replies: 188
Views: 162960

Re: A question from Cloning

... the human mitochondria in the embryonic cells, though I do not quite understand how they do it. Here is the link to that article: http://www.telegraph.co.uk/scienceandtechnology/science/sciencenews/3345954/Human-pig-hybrid-embryos-given-go-ahead.html By the way I forgot to clarify one more ...

See entire post
by koyal
Wed Jul 15, 2009 6:07 pm
Forum: Cell Biology
Topic: A question from Cloning
Replies: 26
Views: 27448

A virus that attacks another virus


See entire post
by mith
Wed Aug 06, 2008 10:17 pm
Forum: Microbiology
Topic: A virus that attacks another virus
Replies: 1
Views: 2092

The Physics of how the Myelin Sheath actually works.

... portions of the axonal membrane have excellent cable properties (in other words, they behave electrically much like well-designed underwater telegraph cables), a depolarization of the membrane at one node almost immediately spreads passively to the next node. Thus, an action potential propagates ...

See entire post
by Nebulae
Wed Feb 27, 2008 8:42 am
Forum: Human Biology
Topic: The Physics of how the Myelin Sheath actually works.
Replies: 17
Views: 23567
View all matching forum results

This page was last modified 21:16, 3 October 2005. This page has been accessed 2,530 times. 
What links here | Related changes | Permanent link