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	Telegraphy - Encyclopedia, History, Geography and Biography
		Telegraphy (from the Greek words tele = far and graphein = write) is the long-distance transmission of written messages without physical transport of letters, originally over wire.
		Telegraphy includes recent forms of data transmission such as fax, email, and computer networks in general.
		Telegraphy messages sent by telegraph operators using Morse code were known as telegrams or cablegrams, often shortened to a cable or a wire message.
	www.arikah.net /encyclopedia/Telegraphy (3219 words)

	MHS \| Marconi Collection \| History (Site not responding. Last check: 2007-10-22)
		By 1904, wireless telegraphy had succeeded in being widely recognised as an essential means of modern communication and was used by both side in the Russo-Japanese War of that year.
		In January 1909, wireless telegraphy saved over 4,000 lives when it was used to call for rescue when the SS Republic collided with the SS Florida off the shores of Nantucket; this provided the Marconi Company, and indeed wireless telegraphy itself, with the respectability and public acclaim it had been clamouring for.
		While Marconi did not develop the theory behind Wireless Telegraphy, his practical system obtained such ubiquity that he is often referred to as the ‘father of radio’.
	www.mhs.ox.ac.uk /marconi/collection/history.php (1284 words)

	Museum of Communication, Collection, Telegraphy
		This section is devoted to methods of comunication involving telegraphy.
		The telegraph is a system of communication employing electrical apparatus to transmit and receive signals in accordance with a code of electrical pulses.
		Originally the term telegraphy referred to any form of communication over long distances in which messages were transmitted by signs or sounds.
	myweb.tiscali.co.uk /davidpack/museum/collection/telegraphy.htm (412 words)

	Telecommunication > Telegraphy
		Telegraphy is the long distance transmission of written messages without physical transport of letters.
		Before the internet came into general use, telegraphy messages were known as telegrams or cablegrams, often shortened to a cable or a wire message.
		A continuing goal in telegraphy has been to reduce the cost per message by reducing hand-work, or increasing the sending rate.
	www.telecommunication.teleactivities.net /telegraphy/index.html (2142 words)

	Class Definition for Class 178 - TELEGRAPHY
		Means for the conversion of sound waves into conductive or inductive electrical impulses and reconversion into sound waves for reproduction of sounds at a distance are classified as telephones.
		for selective systems analogous to the selective systems utilized in telegraphy but restricted to the communication of a limited amount of information or control signals, subclasses 287+ and 533+ for signal box systems such as the American district telegraph or fire alarm systems, and subclass 320 for signaling along a fluid conduit.
		Miscellaneous means for transmitting messages between stations telegraphically not otherwise provided for that include a plurality of telegraph instruments, such as transmitting and receiving instruments, in circuit.
	www.uspto.gov /go/classification/uspc178/defs178.htm (2883 words)

	Radio Telegraphy
		(1844-1940) is revered in France as the inventor of wireless telegraphy.
		In 1890, Branly, a professor of Physics at the Catholic University of Paris, discovered that when exposed to even a distant spark transmission field, loose zinc and silver filings would cohere and provide a path of increased conductivity that could be used to detect the presence of the transmission.
		These were taken over by the British General Post Office in 1910, but for more than a decade the Marconi Company enjoyed a monopoly on maritime radio equipment sales by virtue of an agreement with Lloyds of London to only insure ships that used their equipment.
	www.ee.umd.edu /~taylor/Electrons2.htm (521 words)

	Mark Twain quotations - Mental Telegraphy
		Certain mental telegraphy is an industry which is always silently at work -- oftener than otherwise, perhaps, when we are not suspecting that it is affecting our thought...
		DEAR SIR, -- I should be very glad to be made a Member of the Society for Psychical Research; for Thought-transference, as you call it, or mental telegraphy as I have been in the habit of calling it, has been a very strong interest with me for the past nine or ten years.
		I began a chapter upon "Mental Telegraphy" in May, 1878, and added a a paragraph to it now and then during two or three years; but I have never published it, because I judged that people would only laugh at it and think I was joking.
	www.twainquotes.com /Mental_telegraphy.html (879 words)

	Resources on the development of telegraphy - The IET
		The Archives hold significant and important collections on the development of telegraphy, wireless telegraphy and submarine telegraphy.
		The collections contain papers, notes and correspondence of eminent figures; patents, drawings, diagrams, photos and maps of telegraph equipment, installation and locations; pamphlets, newspaper articles and other printed material and historical accounts of the development of these technologies during the 19th century.
		A series of books presented to the IEE consisting of four volumes relating to submarine telegraphy; the invention of the electric telegraph; the introduction and control of the telegraph in America and a guide to telegraphy and postal service duties.
	www.iee.org /TheIEE/Research/Archives/ResearchGuides/Telegraphy.cfm (747 words)

	Optical telegraphy (Site not responding. Last check: 2007-10-22)
		The history of optical telegraphy in Russia begins in the year 1824 when a telegraph line was set up between St. Petersburg and Lake Ladoga - not a long line.
		The expected superiority of the budding electrical telegraphy was probably the main reason why further optical lines were not constructed.
		The use of the telegraphy system was discontinued when the first hostilities ceased in August, 1854.
	www.histdoc.net /lauttasaari/telegr.html (552 words)

	Telegraphy (Site not responding. Last check: 2007-10-22)
		For the British newspaper see The Daily Telegraph Telegraphy (from the Greek words tele = far away and grapho = write) is the long distance transmission of written messages without physical transport of letters, originally over wire.
		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 Telegraph operators using Morse code were known as telegrams or cablegrams, often shortened to a cable or a wire message.
		Nikola Tesla and other scientists and inventors showed the usefulness of wireless telegraphy, radiotelegraphy, or radio, beginning in the 1860s.
	telegraphy.iqnaut.net (2390 words)

	BROADCASTING AND WIRELESS TELEGRAPHY ACT, 1988 (Site not responding. Last check: 2007-10-22)
		"Television set" means any apparatus for wireless telegraphy capable of receiving and exhibiting television programmes broadcast for general reception (whether or not its use for that purpose is dependent on the use of anything else in conjunction therewith) and any assembly comprising such apparatus and other apparatus.
		(d) repairing or maintaining any apparatus for wireless telegraphy knowing, or having reasonable cause to believe, that, by means of that apparatus, broadcasts have been, are being or are to be made in contravention of the said section 3 (1).
		(b) The Wireless Telegraphy Acts, 1926 to 1972, and sections 2, 9, 10, 11, 12, 14, 15, 16, 17 and 19 of this Act may be cited together as the Wireless Telegraphy Acts, 1926 to 1988.
	www.irishstatutebook.ie /1988_19.html (5324 words)

	Maritime Topics On Stamps, Wireless Telegraphy on Sea
		First it was used for cable telegraphy, then for wireless telegraphy and later on even for optical signalling using e.g.
		In Germany wireless telegraphy was researched by Adolf H. Slaby of the AEG company and Karl F. Braun from Siemens.
		In 1906 the 1st international wireless telegraphy conference was held in Berlin, Germany.
	www.palouse.net /hobbies/shipstamps/Topics/html/funker.htm (1629 words)

	Telegraphy Equations -- from Eric Weisstein's World of Physics
		The telegraphy equations describe the propagation of electric signals, and predict traveling damped electromagnetic waves.
		To derive them, begin with the Maxwell equations in a dielectric medium.
		Equations (17) to (18) and (23) to (24) are known as the equations of telegraphy.
	scienceworld.wolfram.com /physics/TelegraphyEquations.html (127 words)

	site: Robert A. Heinlein - Archives - Twain's "Mental Telegraphy"
		And they have succeeded in doing, by their great credit and influence, what I could never have done - they have convinced the world that mental telegraphy is not a jest, but a fact, and that it is a thing not rare, but exceedingly common.
		That is a case where your telegram has gone straight from your brain to the man it was meant for, far outstripping the wire's slow electricity, and it is an exercise of mental telegraphy which is as common as dining.
		Once a lady in the West wrote me that her son was coming to New York to remain three weeks, and would pay me a visit if invited, and she gave me his address.
	www.nitrosyncretic.com /rah/telepath.html (8276 words)

	Telegraph History (Site not responding. Last check: 2007-10-22)
		Also the history of telegraphy offers a clear example of how one technology, in this case the railways, creates a supervening necessity for another, the telegraph.
		Given that the idea of telegraphy had been widely mooted; that a system using a common scientific device, the galvanometer, had been demonstrated; and that the railways had a need for a signaling system.
		In 1840, the first telegram to excite London, that the Queen had given birth was carried from Windsor on the Great Ernest Railways telegraph line, developed by the British inventors Cooke and Wheatstone.
	www.tcnj.edu /~fiske2/Tele/content/history.html (925 words)

	Samuel Morse
		Morse is remembered for his Code, still used, and less for the invention that enabled it to be used, probably since landline telegraphy eventually gave way to wireless telegraphy.
		The telegraph of course came to be important for the military, being used first at Varna during the Crimean War in 1854.
		‘Brasspounding’, that is telegraphy on a straight (up and down) key gave rise to telegrapher’s ‘glass arm’; it was this that motivated the invention of the ‘side-swiper’ or ‘bug’ key, the most famous maker of which is Vibroplex.
	www.rod.beavon.clara.net /samuel.htm (721 words)

	WIRELESS TELEGRAPHY ACT, 1926 (Site not responding. Last check: 2007-10-22)
		the expression "wireless telegraphy" means and includes any system of communicating messages, spoken words, music, images, pictures, prints, or other communications, sounds, signs, or signals by means of radiated electro-magnetic waves originating in an apparatus or device constructed for the purpose of originating such communications, sounds, signs, or signals;
		(2) No person having possession of apparatus for wireless telegraphy under a licence granted under this Act shall work or use such apparatus otherwise than in accordance with the terms and conditions subject to which such licence is by virtue of this Act deemed to have been granted.
		(4) No notice shall be served under this section in respect of the working or using of apparatus for wireless telegraphy in contravention of this section in a ship to which the Merchant Shipping (Wireless Telegraphy) Act, 1919 applies without the previous consent of the Minister for Industry and Commerce.
	www.irishstatutebook.ie /1926_45.html (2252 words)

	Posthegemony: telegraphy
		Frank reads Edgar Allan Poe's 1845 short story "The Facts in the Case of M. Valdemar", a text analyzed also by Roland Barthes and Jacques Derrida, in terms not merely of nineteenth-century enthusiasm for Mesmerism, but also an engagement with the (then) new communications technology of telegraphy.
		The vibrating tongue functions as a vibrating armature, registering a voice transmitted from an almost unimaginable distance, and conveying with it the affect associated (for Poe) with the innovation, creativity, and novelty of the new technology.
		At the interface of telegraphic and literary writing, and also registering a nascent contest between and over these two technologies of communication, Poe's story is therefore profoundly political.
	posthegemony.blogspot.com /2006/01/telegraphy.html (520 words)

	Railroad Telegraphy Devices - Railroadiana Online
		In time the telegraph was replaced by the telephone in railroad operations, but not before a generations of railroaders spent whole careers mastering the skills needed in the use of morse code.
		Shown below are some rare telegraphy devices used in railroad operations.
		Additional telegraphy items are shown on a second and third page.
	www.railroadiana.org /hw/pgTelegraphy.php (319 words)

	Telegraphy and Telephony Patents - The Edison Papers
		Telegraphy and Telephony Patents - The Edison Papers
		The following list contains the 186 patents Edison received concerning telegraphy and telephony.
		It is arranged in chronological order by execution date, which is the date on which Edison signed the application and the date in the patenting process that comes closest to the time of actual inventive activity.
	edison.rutgers.edu /telepats.htm (117 words)

	The Telegrapher Web Page
		Mary Louella Watts, station agent and telegrapher for the Iron Mountain Railroad in Russell, Arkansas, in the 1880's, met her future husband over the line; see "The Telegraph Romance and Bushwacking Mystery," by William R. Wynn.
		The Aurora Borealis and the Telegraph, early accounts of the effect of the northern lights on the operation of the telegraph.
		Die Geschichte der Telegraphie, history of the telegraph and telephone in Germany (In German).
	www.mindspring.com /~tjepsen/Teleg.html (1715 words)

	Wireless Telegraphy (Site not responding. Last check: 2007-10-22)
		This included research into how wireless telegraphy could be used by military aircraft.
		The aircraft observer carried a wireless set and a map and after identifying the position of an enemy target was able to send messages such as A5, B3, etc. to the artillery commander.
		The Royal Flying Corps began research into how wireless telegraphy could be used to help home-defence aircraft during German bombing raids.
	www.spartacus.schoolnet.co.uk /FWWairwireless.htm (672 words)

	The Seattle Times: Books: Larson strikes twice in story of wireless telegraphy and sensational crime
		In 2003 his "The Devil in the White City" became a No. 1 New York Times best-seller, as readers became caught up in his re-creation of the Chicago World's Fair of 1893 and the serial killer that preyed on its margins.
		In his recent "Thunderstruck," he tells the story of the origin of wireless telegraphy, interwoven with the tale of another sensational crime.
		Occasionally his books get filed under "true crime" or "biography," but his landscape is much grander than simple detective stories.
	seattletimes.nwsource.com /html/books/2003328183_larson30.html (1262 words)

	Wireless Telegraphy Act Licences (Terms, Provisions and Limitations) \| Ofcom
		Ofcom may exercise their power to vary or revoke this licence by a written notice served on the Licensee or by a general notice applicable to holders of this class of Licence.
		It is the responsibility of the licensed user to ensure that all use of his or her station(s) conforms in every detail with the restrictions contained in the CB Licence Conditions.
		Where Ofcom exercise their power to revoke or vary the Licence in accordance with section 1(4) of the Wireless Telegraphy Act 1949, the Licensee shall be notified in writing or by a general notice.
	www.ofcom.org.uk /radiocomms/ifi/wtf (11122 words)

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