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James Robert Erskine-Murray
Dr James Robert Erskine-Murray FRSE MIEE (1868-1927) was a Scottish electrical engineer and inventor. A protege of Lord Kelvin, he also worked with Marconi and was a pioneer in the development of the telegraph. He wrote extensively on telegraphy and wireless communication. Early life He was born in Edinburgh on 24 October 1868, the eldest son of Alexander Erskine Erskine-Murray , Sheriff of Glasgow (1832-1907), and his wife, Helen Pringle, daughter of Robert Pringle of Symington. In 1886 he began study under Lord Kelvin at Glasgow University assisting Kelvin in electrical experiments from 1888 and graduating BSc in 1892. Career He began lecturing in Electricity at Heriot-Watt College in Edinburgh in 1896. In 1897 he was elected a Fellow of the Royal Society of Edinburgh. His proposers were Lord Kelvin, John Gray McKendrick, William Jack and Joseph Bell. He received a doctorate (DSc) in 1897 and in 1898 he became personal assistant to Guglielmo Marconi based at the Haven Hote ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Radio Society Of Great Britain
The Radio Society of Great Britain (RSGB) is the United Kingdom's recognised national society for amateur radio operators. The society was founded in 1913 as the London Wireless Club, making it one of the oldest organisations of its kind in the world. Through its work, it represent the interests of the UK's 80,000 licensed radio amateurs in the United Kingdom and certain dependent territories of the United Kingdom at the International Amateur Radio Union, acting as a medium for communication between the licensed operators and the UK government. Role The RSGB has traditionally acted as the organisation through which its members interact with the telecommunications regulatory authority of the United Kingdom, Ofcom. Although Ofcom has used its web site to solicit opinions directly from all amateur radio enthusiasts and other interested parties, the RSGB continues to advise and to seek to influence Ofcom on the likely impact of proposed changes in many areas – from decisions on ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
First World War
World War I (28 July 1914 11 November 1918), often abbreviated as WWI, was one of the deadliest global conflicts in history. Belligerents included much of Europe, the Russian Empire, the United States, and the Ottoman Empire, with fighting occurring throughout Europe, the Middle East, Africa, the Pacific, and parts of Asia. An estimated 9 million soldiers were killed in combat, plus another 23 million wounded, while 5 million civilians died as a result of military action, hunger, and disease. Millions more died in genocides within the Ottoman Empire and in the 1918 influenza pandemic, which was exacerbated by the movement of combatants during the war. Prior to 1914, the European great powers were divided between the Triple Entente (comprising France, Russia, and Britain) and the Triple Alliance (containing Germany, Austria-Hungary, and Italy). Tensions in the Balkans came to a head on 28 June 1914, following the assassination of Archduke Franz Ferdina ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Experimental Physicists
An experiment is a procedure carried out to support or refute a hypothesis, or determine the efficacy or likelihood of something previously untried. Experiments provide insight into Causality, cause-and-effect by demonstrating what outcome occurs when a particular factor is manipulated. Experiments vary greatly in goal and scale but always rely on repeatable procedure and logical analysis of the results. There also exist natural experiment, natural experimental studies. A child may carry out basic experiments to understand how things fall to the ground, while teams of scientists may take years of systematic investigation to advance their understanding of a phenomenon. Experiments and other types of hands-on activities are very important to student learning in the science classroom. Experiments can raise test scores and help a student become more engaged and interested in the material they are learning, especially when used over time. Experiments can vary from personal and in ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Scottish Electrical Engineers
Scottish usually refers to something of, from, or related to Scotland, including: *Scottish Gaelic, a Celtic Goidelic language of the Indo-European language family native to Scotland *Scottish English *Scottish national identity, the Scottish identity and common culture *Scottish people, a nation and ethnic group native to Scotland *Scots language, a West Germanic language spoken in lowland Scotland *Symphony No. 3 (Mendelssohn), a symphony by Felix Mendelssohn known as ''the Scottish'' See also *Scotch (other) *Scotland (other) *Scots (other) *Scottian (other) *Schottische The schottische is a partnered country dance that apparently originated in Bohemia. It was popular in Victorian era ballrooms as a part of the Bohemian folk-dance craze and left its traces in folk music of countries such as Argentina ("chotis"Span ... * {{disambiguation Language and nationality disambiguation pages ca:Escocès ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
1927 Deaths
Nineteen or 19 may refer to: * 19 (number), the natural number following 18 and preceding 20 * one of the years 19 BC, AD 19, 1919, 2019 Films * ''19'' (film), a 2001 Japanese film * ''Nineteen'' (film), a 1987 science fiction film Music * 19 (band), a Japanese pop music duo Albums * ''19'' (Adele album), 2008 * ''19'', a 2003 album by Alsou * ''19'', a 2006 album by Evan Yo * ''19'', a 2018 album by MHD * ''19'', one half of the double album ''63/19'' by Kool A.D. * ''Number Nineteen'', a 1971 album by American jazz pianist Mal Waldron * ''XIX'' (EP), a 2019 EP by 1the9 Songs * "19" (song), a 1985 song by British musician Paul Hardcastle. * "Nineteen", a song by Bad4Good from the 1992 album '' Refugee'' * "Nineteen", a song by Karma to Burn from the 2001 album ''Almost Heathen''. * "Nineteen" (song), a 2007 song by American singer Billy Ray Cyrus. * "Nineteen", a song by Tegan and Sara from the 2007 album '' The Con''. * "XIX" (song), a 2014 song by Slipk ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
1868 Births
Events January–March * January 2 – British Expedition to Abyssinia: Robert Napier leads an expedition to free captive British officials and missionaries. * January 3 – The 15-year-old Mutsuhito, Emperor Meiji of Japan, declares the ''Meiji Restoration'', his own restoration to full power, under the influence of supporters from the Chōshū and Satsuma Domains, and against the supporters of the Tokugawa shogunate, triggering the Boshin War. * January 5 – Paraguayan War: Brazilian Army commander Luís Alves de Lima e Silva, Duke of Caxias enters Asunción, Paraguay's capital. Some days later he declares the war is over. Nevertheless, Francisco Solano López, Paraguay's president, prepares guerrillas to fight in the countryside. * January 7 – The Arkansas constitutional convention meets in Little Rock. * January 9 – Penal transportation from Britain to Australia ends, with arrival of the convict ship ''Hougoumont'' in Western Aus ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Lord Elibank
Lord Elibank, of Ettrick Forest in the County of Selkirk, is a title in the Peerage of Scotland. It was created in 1643 for Patrick Murray, 1st Lord Elibank, Sir Patrick Murray, 1st Baronet, with remainder to his heirs male whatsoever. He had already been created a Baronet, of Elibank, in the Baronetage of Nova Scotia in 1628. His great-great-grandson, the fifth Lord, was an author and economist. He was succeeded by his younger brother, the sixth Lord, who was an admiral in the Royal Navy. On his death the titles passed to his nephew, the seventh Lord. He represented Peeblesshire (UK Parliament constituency), Peeblesshire in the British House of Commons, House of Commons and also served as Lord Lieutenant of Peeblesshire. His great-grandson, the tenth Lord, was also Lord Lieutenant of Peebleshire. In 1911 he was created Viscount Elibank, of Elibank in the County of Selkirk, in the Peerage of the United Kingdom. His eldest son and heir apparent, Alexander Murray, 1st Baron Murray o ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Global Positioning System
The Global Positioning System (GPS), originally Navstar GPS, is a satellite-based radionavigation system owned by the United States government and operated by the United States Space Force. It is one of the global navigation satellite systems (GNSS) that provides geolocation and time information to a GPS receiver anywhere on or near the Earth where there is an unobstructed line of sight to four or more GPS satellites. It does not require the user to transmit any data, and operates independently of any telephonic or Internet reception, though these technologies can enhance the usefulness of the GPS positioning information. It provides critical positioning capabilities to military, civil, and commercial users around the world. Although the United States government created, controls and maintains the GPS system, it is freely accessible to anyone with a GPS receiver. The GPS project was started by the U.S. Department of Defense in 1973. The first prototype spacecraft was lau ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Portsmouth
Portsmouth ( ) is a port and city in the ceremonial county of Hampshire in southern England. The city of Portsmouth has been a unitary authority since 1 April 1997 and is administered by Portsmouth City Council. Portsmouth is the most densely populated city in the United Kingdom, with a population last recorded at 208,100. Portsmouth is located south-west of London and south-east of Southampton. Portsmouth is mostly located on Portsea Island; the only English city not on the mainland of Great Britain. Portsea Island has the third highest population in the British Isles after the islands of Great Britain and Ireland. Portsmouth also forms part of the regional South Hampshire conurbation, which includes the city of Southampton and the boroughs of Eastleigh, Fareham, Gosport, Havant and Waterlooville. Portsmouth is one of the world's best known ports, its history can be traced to Roman times and has been a significant Royal Navy dockyard and base for centuries. Portsm ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Royal Navy
The Royal Navy (RN) is the United Kingdom's naval warfare force. Although warships were used by English and Scottish kings from the early medieval period, the first major maritime engagements were fought in the Hundred Years' War against France. The modern Royal Navy traces its origins to the early 16th century; the oldest of the UK's armed services, it is consequently known as the Senior Service. From the middle decades of the 17th century, and through the 18th century, the Royal Navy vied with the Dutch Navy and later with the French Navy for maritime supremacy. From the mid 18th century, it was the world's most powerful navy until the Second World War. The Royal Navy played a key part in establishing and defending the British Empire, and four Imperial fortress colonies and a string of imperial bases and coaling stations secured the Royal Navy's ability to assert naval superiority globally. Owing to this historical prominence, it is common, even among non-Britons, to ref ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Alan Archibald Campbell-Swinton
Alan Archibald Campbell-Swinton FRS (18 October 1863 – 19 February 1930) was a Scottish consulting electrical engineer, who provided the theoretical basis for the electronic television, two decades before the technology existed to implement it.Oakes, Elizabeth (2009), ''A to Z of STS Scientists''. Infobase publishing, pp. 51. He began experimenting around 1903 with the use of cathode ray tubes for the electronic transmission and reception of images. Campbell described the theoretical basis for an all electronic method of producing television in a 1908 letter to ''Nature''. Campbell-Swinton's concept was central to the cathode ray television because of his proposed modification of the cathode ray tube that allowed its use as both a transmitter and receiver of light. The cathode-ray tube was the system of electronic television that was subsequently developed in later years, as technology caught up with Campbell-Swinton's initial ideas. Other inventors would use Campbell-Swinton ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Vacuum Tubes
A vacuum tube, electron tube, valve (British usage), or tube (North America), is a device that controls electric current flow in a high vacuum between electrodes to which an electric potential difference has been applied. The type known as a thermionic tube or thermionic valve utilizes thermionic emission of electrons from a hot cathode for fundamental electronic functions such as signal amplification and current rectification. Non-thermionic types such as a vacuum phototube, however, achieve electron emission through the photoelectric effect, and are used for such purposes as the detection of light intensities. In both types, the electrons are accelerated from the cathode to the anode by the electric field in the tube. The simplest vacuum tube, the diode (i.e. Fleming valve), invented in 1904 by John Ambrose Fleming, contains only a heated electron-emitting cathode and an anode. Electrons can only flow in one direction through the device—from the cathode to the anode. A ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
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