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Chemring Group
Chemring Group is a global business providing a range of advanced technology products and services to the aerospace, defence and security markets. Chemring has extensive operations in the Americas, Europe, Middle East and Asia. The company was originally formed during 1905 as The British, Foreign & Colonial Automatic Light Controlling Company Limited, which manufactured timers for gas street lighting. Deciding to venture into electrical filaments, which were used for electric lights, it found demand for the technology from both domestic and foreign armed forces, using it as chaff, a radar decoy. During 1974, the company was first listed on the London Stock Exchange. In 1982, Chemring drastically increased its production of decoys to supply British forces engaged in the Falklands War. The company again rapidly increased its rate of production of countermeasures to supply coalition forces in the Gulf War of 1991. In 1992, Chemring acquired its main British competitor ''Hale ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
FTSE 250 Index
The FTSE 250 Index ( "Footsie") is a capitalisation-weighted index consisting of the 101st to the 350th largest companies listed on the London Stock Exchange. Promotions and demotions to and from the index occur quarterly in March, June, September, and December. The Index is calculated in real-time and published every minute. Related indices are the FTSE 100 Index (which lists the largest 100 companies), the FTSE 350 Index (which combines the FTSE 100 and 250), the FTSE SmallCap Index and the FTSE All-Share Index (an aggregation of the FTSE 100 Index, the FTSE 250 Index and the FTSE SmallCap Index). Annual returns The following table lists the Total Return of the FTSE 250 index up to 31 December 2021. Constituents The following table lists the FTSE 250 companies after the changes on 19 December 2022. See also *FTSE 100 *FTSE All-Share Index * Fast Track 100 Sunday Times list of the 100 largest private (Non Listed) companies. * Top Track 250 The Sunday Times Top Track ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Meteorological Office
The Meteorological Office, abbreviated as the Met Office, is the United Kingdom's national weather service. It is an executive agency and trading fund of the Department for Business, Energy and Industrial Strategy and is led by CEO Penelope Endersby, who took on the role as Chief Executive in December 2018 and is the first woman to do so. The Met Office makes meteorological predictions across all timescales from weather forecasts to climate change. History The Met Office was established on 1 August 1854 as a small department within the Board of Trade under Vice Admiral Robert FitzRoy as a service to mariners. The loss of the passenger vessel, the ''Royal Charter'', and 459 lives off the coast of Anglesey in a violent storm in October 1859 led to the first gale warning service. FitzRoy established a network of 15 coastal stations from which visual gale warnings could be provided for ships at sea. The new electric telegraph enabled rapid dissemination of warnings and als ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Machine
A machine is a physical system using Power (physics), power to apply Force, forces and control Motion, movement to perform an action. The term is commonly applied to artificial devices, such as those employing engines or motors, but also to natural biological macromolecules, such as molecular machines. Machines can be driven by Animal power, animals and Human power, people, by natural forces such as Wind power, wind and Water power, water, and by Chemical energy, chemical, Thermal energy, thermal, or electricity, electrical power, and include a system of mechanism (engineering), mechanisms that shape the actuator input to achieve a specific application of output forces and movement. They can also include computers and sensors that monitor performance and plan movement, often called mechanical systems. Renaissance natural philosophers identified six simple machines which were the elementary devices that put a load into motion, and calculated the ratio of output force to input fo ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Bomb Disposal
Bomb disposal is an explosives engineering profession using the process by which hazardous Explosive device, explosive devices are rendered safe. ''Bomb disposal'' is an all-encompassing term to describe the separate, but interrelated functions in the military fields of explosive ordnance disposal (EOD) and improvised explosive device disposal (IEDD), and the Public security, public safety roles of public safety bomb disposal (PSBD) and the bomb squad. History The first professional civilian bomb squad was established by Sir Vivian Dering Majendie. As a Major in the Royal Artillery, Majendie investigated an explosion on 2 October 1874 in the Regent's Canal, when the barge 'Tilbury', carrying six barrels of petroleum and five tons of gunpowder, blew up, killing the crew and destroying Macclesfield Bridge and cages at nearby London Zoo. In 1875, he framed The Explosives Bill (proposed law), Act, the first modern legislation for explosives control. He also pioneered many bomb d ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Simmel Difesa
Simmel Difesa is an Italian firm located in Colleferro that manufacturers land and naval munitions. Founded in 1948, Simmel specialized in the production of large-caliber munitions. In 1988, Simmel was acquired by the Fiat Group. During this period, Simmel itself acquired the assets of Bombrini-Parodi-Delfino, a longtime manufacturer of gunpowder and munitions in Italy. Simmel was acquired by and became an operating company of the Chemring Group in 2007, which purchased Simmel at the cost of $102.5 million. In 2014, Chemring Group sold Simmel Difesa to Nexter Systems Nexter Systems (formerly known as GIAT Industries or ''Groupement des Industries de l'Armée de Terre'', Army Industries Group) is a French government-owned weapons manufacturer, based in Roanne, Loire. Group organization The Nexter group is .... In October 2007, an explosion in the Colleferro munitions works killed one worker and wounded 13. Today, Simmel has over 200 employees and an annual turnover of over ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Poole
Poole () is a large coastal town and seaport in Dorset, on the south coast of England. The town is east of Dorchester and adjoins Bournemouth to the east. Since 1 April 2019, the local authority is Bournemouth, Christchurch and Poole Council which is a unitary authority. Poole had an estimated population of 151,500 (mid-2016 census estimates) making it the second-largest town in the ceremonial county of Dorset. Together with Bournemouth and Christchurch, the conurbation has a total population of nearly 400,000. Human settlement in the area dates back to before the Iron Age. The earliest recorded use of the town's name was in the 12th century when the town began to emerge as an important port, prospering with the introduction of the wool trade. Later, the town had important trade links with North America and, at its peak during the 18th century, it was one of the busiest ports in Britain. In the Second World War, Poole was one of the main departing points for the Normandy l ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Diehl Defence
Diehl Defence GmbH & Co. KG is a German arms manufacturer and a division of the Diehl Stiftung with headquarters in Überlingen. Diehl Defence mainly produces missiles and ammunition. Diehl BGT Defence was founded in 2004 as result of the merger of ''Bodenseewerke Gerätetechnik GmbH'' and ''Diehl Munitionssysteme GmbH & Co. KG''. ''Diehl BGT Defence'' and ''Diehl Defence Holding'' are merged into ''Diehl Defence'' in February 2017. In 1960, Bodenseewerke Gerätetechnik became the prime contractor for the European production of the American Sidewinder AIM-9B air-to-air missile. Based on the experience with the Sidewinder, Diehl developed a progressive new seeker for a new type of short-range air-to-air missile – the IRIS-T. IRIS-T is currently being adopted by the German Air Force and other European air forces. Products Image:IRIS-T air-to-air-missile.jpg, IRIS-T Image:BGT IRIS-T SL-2.jpg, IRIS-T SL Image:Trigat-LR-detoured.jpg, PARS 3 LR Image:BGT Hope.jpg, HOPE Image:BGT ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
United States Department Of Defense
The United States Department of Defense (DoD, USDOD or DOD) is an executive branch department of the federal government charged with coordinating and supervising all agencies and functions of the government directly related to national security and the United States Armed Forces. The DoD is the largest employer in the world, with over 1.34 million active-duty service members (soldiers, marines, sailors, airmen, and guardians) as of June 2022. The DoD also maintains over 778,000 National Guard and reservists, and over 747,000 civilians bringing the total to over 2.87 million employees. Headquartered at the Pentagon in Arlington, Virginia, just outside Washington, D.C., the DoD's stated mission is to provide "the military forces needed to deter war and ensure our nation's security". The Department of Defense is headed by the secretary of defense, a cabinet-level head who reports directly to the president of the United States. Beneath the Department of Defense are th ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Coalition
A coalition is a group formed when two or more people or groups temporarily work together to achieve a common goal. The term is most frequently used to denote a formation of power in political or economical spaces. Formation According to ''A Guide for Political Parties'' published by National Democratic Institute and The Oslo Center for Peace and Human Rights, there are five steps of coalition-building: # Developing a party strategy: The first step in coalition-building involves developing a party strategy that will prepare for successful negotiation. The more effort parties place on this step, the more likely they are to identify strategic partners, negotiate a good deal and avoid some of the common mistakes associated with coalition-building. # Negotiating a coalition: Based on the strategy that each party has prepared, in step 2 the parties come together to negotiate and hopefully reach agreement on the terms for the coalition. Depending on the context and objectives of the co ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Infrared
Infrared (IR), sometimes called infrared light, is electromagnetic radiation (EMR) with wavelengths longer than those of visible light. It is therefore invisible to the human eye. IR is generally understood to encompass wavelengths from around 1 millimeter (300 GHz) to the nominal red edge of the visible spectrum, around 700 nanometers (430 THz). Longer IR wavelengths (30 μm-100 μm) are sometimes included as part of the terahertz radiation range. Almost all black-body radiation from objects near room temperature is at infrared wavelengths. As a form of electromagnetic radiation, IR propagates energy and momentum, exerts radiation pressure, and has properties corresponding to both those of a wave and of a particle, the photon. It was long known that fires emit invisible heat; in 1681 the pioneering experimenter Edme Mariotte showed that glass, though transparent to sunlight, obstructed radiant heat. In 1800 the astronomer Sir William Herschel discovered ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Pyrotechnics
Pyrotechnics is the science and craft of creating such things as fireworks, safety matches, oxygen candles, explosive bolts and other fasteners, parts of automotive airbags, as well as gas-pressure blasting in mining, quarrying, and demolition. This trade relies upon self-contained and self-sustained exothermic chemical reactions to make heat, light, gas, smoke and/or sound. The name comes from the Greek words ''pyr'' ("fire") and ''tekhnikos'' ("made by art"). People responsible for the safe storage, handling, and functioning of pyrotechnic devices are known as pyrotechnicians. Proximate pyrotechnics Explosions, flashes, smoke, flames, fireworks and other pyrotechnic-driven effects used in the entertainment industry are referred to as proximate pyrotechnics. Proximate refers to the pyrotechnic device's location relative to an audience. In the majority of jurisdictions, special training and licensing must be obtained from local authorities to legally prepare and use proximate ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Sea-skimming
Sea skimming is a technique many anti-ship missiles and some fighter or strike aircraft use to avoid radar, infrared detection, and to lower probability of being shot down during their approach to the target. Method Sea-skimming anti-ship missiles try to fly as low as is practically achievable, which is almost always below 50 meters (150 ft), and is often down towards 2 meters (6 ft). When under attack, a warship can detect sea-skimming missiles only once they appear over the horizon (about 28 to 46 km from the ship), allowing about 25 to 60 seconds of warning. Advantages By flying low to the sea, missiles decrease the range at which the target ships can detect them by a significant amount. Flying at a lower altitude increases the amount of time the missile is under the horizon from the perspective of the target ship, making it harder to detect due to radar clutter from the sea and similar effects. The real-life success of sea skimming depends on its e ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
