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Telegraphist
A telegraphist (British English), telegrapher (American English), or telegraph operator is an operator who uses a telegraph key to send and receive the Morse code in order to communicate by land lines or radio. During the Great War the Royal Navy enlisted many volunteers as radio telegraphists. Telegraphists were indispensable at sea in the early days of wireless telegraphy, and many young men were called to sea as professional radiotelegraph operators who were always accorded high-paying officer status at sea. Subsequent to the ''Titanic'' disaster and the Radio Act of 1912, the International Safety of Life at Sea ( SOLAS) conventions established the 500kHz maritime distress frequency monitoring and mandated that all passenger-carrying ships carry licensed radio telegraph operators. In popular culture *The telegraphist mouse in Australia and the Marshall Islands from ''The Rescuers Down Under''. See also * Amateur radio * Casa del Telegrafista (House of the Telegr ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Morse Code
Morse code is a method used in telecommunication to encode text characters as standardized sequences of two different signal durations, called ''dots'' and ''dashes'', or ''dits'' and ''dahs''. Morse code is named after Samuel Morse, one of the inventors of the telegraph. International Morse code encodes the 26 basic Latin letters through , one accented Latin letter (), the Arabic numerals, and a small set of punctuation and procedural signals ( prosigns). There is no distinction between upper and lower case letters. Each Morse code symbol is formed by a sequence of ''dits'' and ''dahs''. The ''dit'' duration is the basic unit of time measurement in Morse code transmission. The duration of a ''dah'' is three times the duration of a ''dit''. Each ''dit'' or ''dah'' within an encoded character is followed by a period of signal absence, called a ''space'', equal to the ''dit'' duration. The letters of a word are separated by a space of duration equal to three ''dits' ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Prosigns For Morse Code
Procedural signs or prosigns are shorthand signals used in Morse code radio telegraphy procedure, for the purpose of simplifying and standardizing radio communication protocol. They are separate from Morse code abbreviations, which consist mainly of brevity codes that convey messages to other parties with greater speed and accuracy. In general prosigns are just standardised parts of short form radio protocol, and can include any abbreviation. An example would be K for "okay, heard you, continue". In a more limited role the term refers to something akin to that of the nonprinting control characters in teleprinter and computer character sets, such as Baudot or ASCII. Different from abbreviations, those are universally recognizable across language barriers as distinct and well-defined symbols. At the coding level, prosigns admit any form the Morse code can take, unlike abbreviations which have to follow letter form. Many of them are longer than typical characters and are rendere ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
List Of Telegraphists
This is a list of notable telegraphists. Telegraphists * Harold Bride * Harold Thomas Cottam * Louisa Margaret Dunkley * Thomas Eckert * Thomas Edison * John H. Emerick * Mathilde Fibiger * Ambrose E. Gonzales * Oliver Heaviside * Emma Hunter * Joseph Nathan Kane Joseph Nathan Kane (January 23, 1899 – September 22, 2002) was an American non-fiction writer, historian, and journalist. He is best known for being a researcher who found the person that did an event first and what products, services, and inv ... * Hiram Percy Maxim * Mary Macaulay * Theodore Roosevelt McElroy * Sir John Moores * Seeb Chunder Nandy * Jack Phillips * Franklin Leonard Pope * John Willard Raught * Leah Rosenfeld * David Sarnoff * Ola Delight Smith * Wilhelmina Magdalene Stuart * Ella Cheever Thayer * Ella Stewart Udall * Alfred Vail See also * Lists of people by occupation {{DEFAULTSORT:Telegraphists, list of ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Sinking Of The RMS Titanic
The sank in the early morning hours of 15 April 1912 in the North Atlantic Ocean, four days into her maiden voyage from Southampton to New York City. The largest ocean liner in service at the time, ''Titanic'' had an estimated 2,224 people on board when she struck an iceberg at around 23:40 (ship's time) on Sunday, 14 April 1912. Her sinking two hours and forty minutes later at 02:20 (ship's time; 05:18 GMT) on Monday, 15 April, resulted in the deaths of more than 1,500 people, making it one of the deadliest peacetime maritime disasters in history. ''Titanic'' received six warnings of sea ice on 14 April but was travelling about 22 knots when her lookouts sighted the iceberg. Unable to turn quickly enough, the ship suffered a glancing blow that buckled her starboard side and opened six of her sixteen compartments to the sea. ''Titanic'' had been designed to stay afloat with four of her forward compartments flooded but no more, and the crew soon realised that the ship ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
The Rescuers Down Under
''The Rescuers Down Under'' is a 1990 American animated adventure film produced by Walt Disney Feature Animation and released by Walt Disney Pictures. The 29th Disney animated feature film and the second movie to be produced during the Disney Renaissance, it is the sequel to the 1977 film '' The Rescuers'', which was based on the novels by Margery Sharp. In ''The Rescuers Down Under'', Bernard and Bianca travel to the Australian Outback to save a boy named Cody from a villainous poacher who wants to capture an endangered bird of prey for money. Directed by Hendel Butoy and Mike Gabriel (in their feature directorial debuts) from a screenplay by Jim Cox, Karey Kirkpatrick, Byron Simpson, and Joe Ranft, the film features the voices of Bob Newhart, Eva Gabor (in her final film role), John Candy, and George C. Scott. By the mid-1980s, ''The Rescuers'' had become one of Disney's most successful animated releases. Under the new management of Michael Eisner and Jeffrey Kat ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Obsolete Occupations
Obsolescence is the state of being which occurs when an object, service, or practice is no longer maintained or required even though it may still be in good working order. It usually happens when something that is more efficient or less risky replaces it. The international standard IEC 62402:2019 Obsolescence Management defines obsolescence as the "transition from available to unavailable from the manufacturer in accordance with the original specification". Obsolete also refers to something that is already disused or discarded, or antiquated. Typically, obsolescence is preceded by a gradual decline in popularity. Consequences Driven by rapid technological changes, new components are developed and launched on the market with increasing speed. The result is a dramatic change in production methods of all components and their market availability. A growing industry sector is facing issues where life cycles of products no longer fit together with life cycles of required component ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Transatlantic Telegraph Cable
Transatlantic telegraph cables were undersea cables running under the Atlantic Ocean for telegraph communications. Telegraphy is now an obsolete form of communication, and the cables have long since been decommissioned, but telephone and data are still carried on other transatlantic telecommunications cables. The first cable was laid in the 1850s from Valentia Island off the west coast of Ireland to Bay of Bulls, Trinity Bay, Newfoundland. The first communications occurred on 16 August 1858, but the line speed was poor, and efforts to improve it caused the cable to fail after three weeks. The Atlantic Telegraph Company led by Cyrus West Field constructed the first transatlantic telegraph cable. The project began in 1854 and was completed in 1858. The cable functioned for only three weeks, but was the first such project to yield practical results. The first official telegram to pass between two continents was a letter of congratulations from Queen Victoria of the United ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Commercial Cable Company
The Commercial Cable Company was founded in New York in 1884 by John William Mackay and James Gordon Bennett, Jr. Their motivation was to break the then virtual monopoly of Jay Gould on transatlantic telegraphy and bring down prices (particularly for Bennett's newspaper empire). Their most famous ship was the CS Mackay-Bennett, named after the founders. The technology was well established by this time, and they were able to lay cables from Waterville in Ireland to Canso, Nova Scotia, without the major technical problems of the first Transatlantic telegraph cable. Onward connections to New York City and beyond were initially overland and later submarine. Connections from Waterville to Weston-super-Mare in England and Le Havre in France were soon established by the submarine route after initial use of landlines from Waterville onward to mainland Britain. Commercial Cable also had a relationship with the German Atlantic submarine cable system. Domestically the cable distributed ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Casa Del Telegrafista
Casa del Telegrafista (house of the telegrapher) is a museum in Aracataca. by PAOLA BENJUMEA BRITO ENVIADA DE EL TIEMPO ARACATACA (MAGDALENA) April 3, 2011 El Tiempo The town is the birthplace of author Gabriel Garcia Marquez and photographer Leo Matiz
Leonet Matiz Espinoza (April 1, 1917 – October 24, 1998) was a Colombian photographer, caricaturist, newspaper publisher, painter and gallery owner.
Early life
Matiz was born in the small village of Aracataca in the Magdalena Department of C ...
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Amateur Radio
Amateur radio, also known as ham radio, is the use of the radio frequency spectrum for purposes of non-commercial exchange of messages, wireless experimentation, self-training, private recreation, radiosport, contesting, and emergency communications. The term "amateur" is used to specify "a duly authorised person interested in radioelectric practice with a purely personal aim and without pecuniary interest;" (either direct monetary or other similar reward) and to differentiate it from commercial broadcasting, public safety (such as police and fire), or professional two-way radio services (such as maritime, aviation, taxis, etc.). The amateur radio service (''amateur service'' and '' amateur-satellite service'') is established by the International Telecommunication Union (ITU) through the Radio Regulations. National governments regulate technical and operational characteristics of transmissions and issue individual station licenses with a unique identifying call sign, which ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Australia
Australia, officially the Commonwealth of Australia, is a Sovereign state, sovereign country comprising the mainland of the Australia (continent), Australian continent, the island of Tasmania, and numerous List of islands of Australia, smaller islands. With an area of , Australia is the largest country by area in Oceania and the world's List of countries and dependencies by area, sixth-largest country. Australia is the oldest, flattest, and driest inhabited continent, with the least fertile soils. It is a Megadiverse countries, megadiverse country, and its size gives it a wide variety of landscapes and climates, with Deserts of Australia, deserts in the centre, tropical Forests of Australia, rainforests in the north-east, and List of mountains in Australia, mountain ranges in the south-east. The ancestors of Aboriginal Australians began arriving from south east Asia approximately Early human migrations#Nearby Oceania, 65,000 years ago, during the Last Glacial Period, last i ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
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