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Hewitt-Sperry Automatic Airplane
The Hewitt-Sperry Automatic Airplane was a project undertaken during World War I to develop a flying bomb, or pilotless aircraft capable of carrying explosives to its target. It is considered by some to be a precursor of the cruise missile. It was funded by the US Navy and created by Elmer Sperry. Conceptual development Before World War I, the possibility of using radio to control aircraft intrigued many inventors. One of these, Elmer Sperry, succeeded in arousing the US Navy's interest. Sperry had been perfecting gyroscopes for naval use since 1896 and established the Sperry Gyroscope Company in 1910. In 1911, airplanes had only been flying for eight years, and yet Sperry became intrigued with the concept of applying radio control to them. He realized that for radio control to be effective, automatic stabilization would be essential, so he decided to adapt his naval gyro-stabilizers (which he had developed for destroyers). In 1913, the Navy provided a flying boat to test ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Missile
A missile is an airborne ranged weapon capable of self-propelled flight aided usually by a propellant, jet engine or rocket motor. Historically, 'missile' referred to any projectile that is thrown, shot or propelled towards a target; this usage is still recognized today with any unguided jet- or rocket-propelled weapons generally described as rocket artillery. Airborne explosive devices without propulsion are referred to as shells if fired by an artillery piece and bombs if dropped by an aircraft. Missiles are also generally guided towards specific targets termed as guided missiles or guided rockets. Missile systems usually have five system components: targeting, guidance system, flight system, engine, and warhead. Missiles are primarily classified into different types based on firing source and target such as surface-to-surface, air-to-surface, surface-to-air and air-to-air missiles. Terminology Missile is derived from Latin "missilis" meaning "that may be ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Aneroid Barometer
A barometer is a scientific instrument that is used to measure air pressure in a certain environment. Pressure tendency can forecast short term changes in the weather. Many measurements of air pressure are used within surface weather analysis to help find surface troughs, pressure systems and frontal boundaries. Barometers and pressure altimeters (the most basic and common type of altimeter) are essentially the same instrument, but used for different purposes. An altimeter is intended to be used at different levels matching the corresponding atmospheric pressure to the altitude, while a barometer is kept at the same level and measures subtle pressure changes caused by weather and elements of weather. The average atmospheric pressure on the Earth's surface varies between 940 and 1040 hPa (mbar). The average atmospheric pressure at sea level is 1013 hPa (mbar). Etymology The word ''barometer'' is derived from the Ancient Greek (), meaning "weight", and (), meaning "measur ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Cuxhaven
Cuxhaven (; ) is a town and seat of the Cuxhaven district, in Lower Saxony, Germany. The town includes the northernmost point of Lower Saxony. It is situated on the shore of the North Sea at the mouth of the Elbe River. Cuxhaven has a footprint of (east–west) by (north–south). Its town quarters Duhnen, Döse and Sahlenburg are especially popular vacation spots on the North Sea and home to about 52,000 residents. Cuxhaven is home to an important fisherman's wharf and ship registration point for Hamburg as well as the Kiel Canal until 2008. Tourism is also of great importance. The city and its precursor Ritzebüttel belonged to Hamburg from the 13th century until 1937. What remains of Ritzebüttel is Ritzebüttel Castle (''). The island of Neuwerk, a Hamburg dependency, is located just northwest of Cuxhaven in the North Sea. The city's symbol, known as the Kugelbake, is a beacon once used as a lighthouse; the wooden landmark on the mouth of the Elbe marks the boundary be ... [...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] |
U-boat
U-boats are Submarine#Military, naval submarines operated by Germany, including during the World War I, First and Second World Wars. The term is an Anglicization#Loanwords, anglicized form of the German word , a shortening of (), though the German term refers to any submarine. Austro-Hungarian Navy submarines were also known as U-boats. U-boats are most known for their unrestricted submarine warfare in both world wars, trying to Commerce raiding, disrupt merchant traffic towards the UK and force the UK out of the war. In World War I, Germany intermittently waged unrestricted submarine warfare against the United Kingdom, UK: a first campaign in 1915 was abandoned after strong protests from the US but in 1917 the Germans, facing deadlock on the continent, saw no other option than to resume the campaign in February 1917. The renewed campaign failed to achieve its goal mainly because of the introduction of Convoys in World War I, convoys. Instead the campaign ensured final defeat ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Ralph Earle (American Naval Officer)
Ralph Earle (May 3, 1874 – February 13, 1939) was an American Navy officer and university president. He served the United States Navy during the Spanish–American War and World War I. He was the Chief, Bureau of Ordnance (BUORD) and retired as a rear admiral in 1927. He was also president of Worcester Polytechnic Institute from 1925 to 1939. Biography Earle was born on May 3, 1874, in Worcester, Massachusetts. He graduated from the United States Naval Academy in 1896. He served at sea in several ships, among them , , and . While on board , he won commendations from the President and Secretary of the Navy for his conduct at the time of a disastrous turret explosion. He commanded during the Tampico Affair, and at the U.S. occupation of Veracruz, Mexico, and later commanded . Ashore, Earle had duty at the U.S. Naval Academy and the Naval Proving Ground. An expert on guns and explosives, he was made Chief of the Bureau of Ordnance shortly before the United States entered Worl ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Rear Admiral
Rear admiral is a flag officer rank used by English-speaking navies. In most European navies, the equivalent rank is called counter admiral. Rear admiral is usually immediately senior to commodore and immediately below vice admiral. It is usually equivalent to the rank of major general in armies. In the U.S. Navy and some other navies, there are two rear admiral ranks. The term originated in the days of naval sailing squadrons and can trace its origins to the British Royal Navy. Each naval squadron was assigned an admiral as its head, who commanded from the centre vessel and directed the squadron's activities. The admiral would in turn be assisted by a vice admiral, who commanded the lead ships that bore the brunt of a battle. In the rear of the squadron, a third admiral commanded the remaining ships and, as this section was considered to be in the least danger, the admiral in command of it was typically the most junior. This has continued into the modern age, with rear ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Alfred V
Alfred may refer to: Arts and entertainment *''Alfred J. Kwak'', Dutch-German-Japanese anime television series * ''Alfred'' (Arne opera), a 1740 masque by Thomas Arne * ''Alfred'' (Dvořák), an 1870 opera by Antonín Dvořák *"Alfred (Interlude)" and "Alfred (Outro)", songs by Eminem from the 2020 album '' Music to Be Murdered By'' Business and organisations * Alfred, a radio station in Shaftesbury, England *Alfred Music, an American music publisher *Alfred University, New York, U.S. * The Alfred Hospital, a hospital in Melbourne, Australia People * Alfred (name) includes a list of people and fictional characters called Alfred * Alfred the Great (848/49 – 899), or Alfred I, a king of the West Saxons and of the Anglo-Saxons Places Antarctica * Mount Alfred (Antarctica) Australia * Alfredtown, New South Wales * County of Alfred, South Australia Canada * Alfred and Plantagenet, Ontario ** Alfred, Ontario, a community in Alfred and Plantagenet * Alfred Island, Nunavut * ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Long Island
Long Island is a densely populated continental island in southeastern New York (state), New York state, extending into the Atlantic Ocean. It constitutes a significant share of the New York metropolitan area in both population and land area. The island extends from New York Harbor eastward into the ocean with a maximum north–south width of . With a land area of , it is the List of islands of the United States by area, largest island in the contiguous United States. Long Island is divided among four List of counties in New York, counties, with Brooklyn, Kings (Brooklyn), Queens, and Nassau County, New York, Nassau counties occupying its western third and Suffolk County, New York, Suffolk County its eastern two-thirds. It is an ongoing topic of debate whether or not Brooklyn and Queens are considered part of Long Island. Geographically, both Kings and Queens county are located on the Island, but some argue they are culturally separate from Long Island. Long Island may ref ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Copiague
Copiague ( ) is a hamlet on Long Island (and census-designated place) in the Town of Babylon, in Suffolk County, New York, United States. The population was 23,429 at the time of the 2020 census. Geography According to the United States Census Bureau, the CDP has a total area of , of which is land and , or 0.88%, is water. Copiague is approximately east of Manhattan and west of Montauk Point. It is bordered by Amityville to the west, North Amityville to the north, Lindenhurst to the east, and the Great South Bay to the south. South of Montauk Highway (Merrick Road), Copiague is divided into three major peninsulas: * The southwestern peninsula is known as Amity Harbor and is served by the Amityville Post Office. * The central peninsula is known as Copiague Harbor and is served by the Copiague Post Office. * The southeastern peninsula is known as American Venice and is served by the Lindenhurst Post Office. Demographics As of the census of 2010, there were 23,429 pe ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Bureau Of Construction And Repair
The Bureau of Construction and Repair (BuC&R) was the part of the United States Navy which from 1862 to 1940 was responsible for supervising the design, construction, conversion, procurement, maintenance, and repair of ships and other craft for the Navy. The bureau also managed shipyards, repair facilities, laboratories, and shore stations. On 20 June 1940, Congress passed a law which consolidated the Bureau's functions with those of the Bureau of Engineering (BuEng), creating the Bureau of Ships (BuShips). History The Bureau was staffed by officers of the Construction Corps (called constructors) with advanced degrees in naval architecture. Six civilian constructors were hired by the Navy in 1794 to supervise construction of the frigates authorized by Congress that year.Snyder, Philip W., RADM USN "Bring Back the Corps" ''United States Naval Institute Proceedings'' February 1979 p.49 The Bureau of Construction, Equipment, and Repairs was established in 1842 as one of the five ori ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Josephus Daniels
Josephus Daniels (May 18, 1862 – January 15, 1948) was a newspaper editor, Secretary of the Navy under President Woodrow Wilson, and U.S. Ambassador to Mexico under President Franklin D. Roosevelt. He managed ''The News & Observer'' in Raleigh, at the time North Carolina's largest circulation newspaper, from the 1890s until his death. Daniels was a vehement white supremacist and segregationist; he and his newspaper "championed the white supremacy cause in frequent news reports, vigorously worded editorials, provocative letters, and vicious front page cartoons that called attention to what the newspaper called the horrors of 'negro rule.'" Along with Charles Brantley Aycock and Furnifold McLendel Simmons, he was a leading perpetrator of the Wilmington insurrection of 1898, in which white mobs overthrew the legitimately elected biracial government in Wilmington, expelled black and white political leaders from the city, destroyed the property and businesses of black citiz ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
