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H. J. Round
Captain Henry Joseph Round (2 June 1881 – 17 August 1966) was an English engineer and one of the early pioneers of radio. He was the first to report the observation of electroluminescence from a solid state diode, leading to the discovery of the light-emitting diode. He was a personal assistant to Guglielmo Marconi. Round was the eldest child of Joseph and Gertrude Round. He spent his early years in the small town of Kingswinford in Staffordshire and received his early education at Cheltenham Grammar School. He later attended the Royal College of Science, a constituent college of Imperial College London, where he gained a first-class honours degree. Round joined the Marconi Company in 1902, not long after Marconi had made his transatlantic wireless transmission. He was sent to the United States, where he experimented with a variety of different aspects of radio technology, focusing on technologies such as powdered iron cored tuning inductors. He also performed some experimen ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Kingswinford
Kingswinford is a town of the Metropolitan Borough of Dudley in the English West Midlands (county), West Midlands, situated west-southwest of central Dudley. In 2011 the area had a population of 25,191, down from 25,808 at the 2001 Census. The current economic focus of Kingswinford is education and housing for commuters. Positioned at the far western edge of the West Midlands Urban Area it borders on a rural area extending past the River Severn; but its position at the edge of the Black Country and its long standing in the area means it has had significant industrial influence in the past. This is illustrated by the influence in creating local workhouses, which shows a population of 15,000 plus in the 1831 census. History Kingswinford has Ancient counties of England, historically been in Staffordshire. The larger Kingswinford manor mentioned in the Domesday Book of 1086 was located in the Hundred_(county_division), hundred of Seisdon Hundred, Seisdon in Staffordshire, with ex ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
SiC LED Historic
The Latin adverb ''sic'' (; ''thus'', ''so'', and ''in this manner'') inserted after a quotation indicates that the quoted matter has been transcribed or translated as found in the source text, including erroneous, archaic, or unusual spelling, punctuation, and grammar. ''Sic'' also applies to any surprising assertion, faulty reasoning, or other matter that might otherwise be interpreted as an error of transcription. The typical editorial usage of ''sic'' is to inform the reader that any errors in a quotation did not arise from editorial errors in the transcription, but are intentionally reproduced as they appear in the source text being quoted; thus, ''sic'' is placed inside brackets to indicate it is not part of the quotation. ''Sic'' can also be used derisively to direct the reader's attention to the writer's spelling mistakes and erroneous logic, or to show disapproval of the content or form of the material. Etymology and historical usage In the English language, the Lati ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Sonar
Sonar (sound navigation and ranging or sonic navigation and ranging) is a technique that uses sound propagation (usually underwater, as in submarine navigation) to navigate, measure distances ( ranging), communicate with or detect objects on or under the surface of the water, such as other vessels. "Sonar" can refer to one of two types of technology: ''passive'' sonar means listening for the sound made by vessels; ''active'' sonar means emitting pulses of sounds and listening for echoes. Sonar may be used as a means of acoustic location and of measurement of the echo characteristics of "targets" in the water. Acoustic location in air was used before the introduction of radar. Sonar may also be used for robot navigation, and sodar (an upward-looking in-air sonar) is used for atmospheric investigations. The term ''sonar'' is also used for the equipment used to generate and receive the sound. The acoustic frequencies used in sonar systems vary from very low ( infrasonic) to e ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Second World War
World War II or the Second World War (1 September 1939 – 2 September 1945) was a World war, global conflict between two coalitions: the Allies of World War II, Allies and the Axis powers. World War II by country, Nearly all of the world's countries participated, with many nations mobilising all resources in pursuit of total war. Tanks in World War II, Tanks and Air warfare of World War II, aircraft played major roles, enabling the strategic bombing of cities and delivery of the Atomic bombings of Hiroshima and Nagasaki, first and only nuclear weapons ever used in war. World War II is the List of wars by death toll, deadliest conflict in history, causing World War II casualties, the death of 70 to 85 million people, more than half of whom were civilians. Millions died in genocides, including the Holocaust, and by massacres, starvation, and disease. After the Allied victory, Allied-occupied Germany, Germany, Allied-occupied Austria, Austria, Occupation of Japan, Japan, a ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Military Cross
The Military Cross (MC) is the third-level (second-level until 1993) military decoration awarded to officers and (since 1993) Other ranks (UK), other ranks of the British Armed Forces, and formerly awarded to officers of other Commonwealth of Nations, Commonwealth countries. The MC is granted in recognition of "an act or acts of exemplary gallantry during active operations against the enemy on land" to all members of the British Armed Forces of any rank. In 1979, Queen Elizabeth II approved a proposal that a number of awards, including the Military Cross, could be recommended posthumously. History The award was created on 28 December 1914 for Officer (armed forces), commissioned officers of the substantive rank of Captain (land), captain or below and for warrant officers. The first 98 awards were gazetted on 1 January 1915, to 71 officers, and 27 warrant officers. Although posthumous recommendations for the Military Cross were unavailable until 1979, the first awards included ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
1917 New Year Honours
The 1917 New Year Honours were appointments by King George V to various orders and honours to reward and highlight good works by citizens of the British Empire. The appointments were published in several editions of ''The London Gazette'' in January and February. The 1 January list contained only military honours earned during the ongoing war, particularly for the Battle of the Somme, while political honours were delayed. The announcement was celebrated by ''The Times'' in its New Year's Day reporting: "It is a welcome change to publish a list of New Year's Honours which have been earned altogether in the honourable service of the State. What are sometimes called 'political honours' – the results too often of personal and party manoeuvres – seem indescribably repellent in these days of national strain. We cannot, unfortunately, congratulate ourselves that their omission to-day is anything more than a postponement; but for the moment at all events we have a list confined en ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Battle Of Jutland
The Battle of Jutland () was a naval battle between Britain's Royal Navy Grand Fleet, under Admiral John Jellicoe, 1st Earl Jellicoe, Sir John Jellicoe, and the Imperial German Navy's High Seas Fleet, under Vice-Admiral Reinhard Scheer, during the First World War. The battle unfolded in extensive manoeuvring and three main engagements from 31 May to 1 June 1916, off the North Sea coast of Denmark's Jutland Peninsula. It was the largest naval battle and only full-scale clash of battleships of the war, and the outcome ensured that the Royal Navy denied the German surface fleet access to the North Sea and the Atlantic for the remainder of the war. Germany avoided all fleet-to-fleet contact thereafter. Jutland was also the last major naval battle, in any war, fought primarily by battleships. Germany's High Seas Fleet intended to lure out, trap, and destroy a portion of the British Grand Fleet. The German naval force was insufficient to openly engage the British fleet. This was par ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
British Admiralty
The Admiralty was a Departments of the Government of the United Kingdom, department of the Government of the United Kingdom that was responsible for the command of the Royal Navy. Historically, its titular head was the Lord High Admiral of the United Kingdom, Lord High Admiral – one of the Great Officers of State. For much of its history, from the early Admiralty in the 18th century, 18th century until its abolition, the role of the Lord High Admiral was almost invariably put "in commission" and exercised by the Lords Commissioner of the Admiralty, who sat on the governing Board of Admiralty, rather than by a single person. The Admiralty was replaced by the Admiralty Board (United Kingdom), Admiralty Board in 1964, as part of the reforms that created the Ministry of Defence (United Kingdom), Ministry of Defence and its Navy Department (Ministry of Defence), Navy Department (later Navy Command (Ministry of Defence), Navy Command). Before the Acts of Union 1707, the Office of t ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Wilhelmshaven
Wilhelmshaven (, ''Wilhelm's Harbour''; Northern Low Saxon: ''Willemshaven'') is a coastal town in Lower Saxony, Germany. It is situated on the western side of the Jade Bight, a bay of the North Sea, and has a population of 76,089. Wilhelmshaven is the centre of the "Jade Bay" business region (which has around 330,000 inhabitants) and is Germany's main military port. The adjacent Lower Saxony Wadden Sea National Park (part of the Wattenmeer UNESCO World Natural Heritage Site) provides the basis for the major tourism industry in the region. History The , built before 1383, operated as a pirate stronghold; the Hanseatic League destroyed it in 1433. Four centuries later, the Kingdom of Prussia planned a fleet and a harbour on the North Sea. In 1853, Prince Adalbert of Prussia, a cousin of the Prussian King Frederick William IV of Prussia, Frederick William IV, arranged the Jade Treaty (''Jade-Vertrag'') with the Grand Duchy of Oldenburg, in which Prussia and the Grand Duchy ente ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Western Front (World War I)
The Western Front was one of the main Theatre (warfare), theatres of war during World War I. Following the outbreak of war in August 1914, the Imperial German Army, German Army opened the Western Front by German invasion of Belgium (1914), invading Luxembourg and Belgium, then gaining military control of important industrial regions in Third Republic of France, France. The German advance was halted with the First Battle of the Marne, Battle of the Marne. Following the Race to the Sea, both sides dug in along a meandering line of fortified trench warfare, trenches, stretching from the North Sea to the Swiss frontier with France, the position of which changed little except during early 1917 and again in 1918. Between 1915 and 1917 there were several offensives along this Front (military), front. The attacks employed massive artillery bombardments and massed infantry advances. Entrenchments, machine gun emplacements, barbed wire, and artillery repeatedly inflicted severe casualties ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Intelligence Corps (United Kingdom)
The Intelligence Corps (Int Corps) is a corps of the British Army. It is responsible for gathering, analysing and disseminating military intelligence and also for counter-intelligence and security. The Director of the Intelligence Corps is a brigadier. History 1814–1914 In the 19th century, British intelligence work was undertaken by the Intelligence Department of the War Office. An important figure was Charles William Wilson, Sir Charles Wilson, a Royal Engineer who successfully pushed for reform of the War Office's treatment of topographical work. In the early 1900s intelligence gathering was becoming better understood, to the point where a counter-intelligence organisation (MI5) was formed by the Directorate of Military Intelligence (United Kingdom), Directorate of Military Intelligence (DoMI) under Captain (later Major-General) Vernon Kell; overseas intelligence gathering began in 1912 by Secret Intelligence Service, MI6 under Commander (later Captain) Mansfield Smith-Cum ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
