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Blue Danube (nuclear Weapon)
Blue Danube was the first operational British nuclear weapon. It also went by a variety of other names, including Smallboy, the Mk.1 Atom Bomb, Special Bomb and OR.1001, a reference to the Operational Requirement it was built to fill. The RAF V bomber force was initially meant to use Blue Danube as their primary armament at a time when the first hydrogen bomb had not been detonated, and the British military planners still believed that an atomic war could be fought and won using atomic bombs of similar yield to the Hiroshima bomb. For that reason the stockpile planned was for up to 800 bombs with yields of 10-12 kilotons. V-bomber bomb bays were sized to carry Blue Danube, the smallest-size nuclear bomb that was possible to be designed given the technology of the day (1947) when their plans were formulated. Design Initial designs for the Blue Danube warhead were based on research derived from Hurricane, the first British fission device (which was neither designed nor employed ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Blue Danube Bomb
Blue is one of the three primary colours in the RYB colour model (traditional colour theory), as well as in the RGB (additive) colour model. It lies between violet and cyan on the spectrum of visible light. The eye perceives blue when observing light with a dominant wavelength between approximately 450 and 495 nanometres. Most blues contain a slight mixture of other colours; azure contains some green, while ultramarine contains some violet. The clear daytime sky and the deep sea appear blue because of an optical effect known as Rayleigh scattering. An optical effect called Tyndall effect explains blue eyes. Distant objects appear more blue because of another optical effect called aerial perspective. Blue has been an important colour in art and decoration since ancient times. The semi-precious stone lapis lazuli was used in ancient Egypt for jewellery and ornament and later, in the Renaissance, to make the pigment ultramarine, the most expensive of all pigments. In the eigh ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Physics Package
Nuclear weapon designs are physical, chemical, and engineering arrangements that cause the physics package of a nuclear weapon to detonate. There are three existing basic design types: * pure fission weapons, the simplest and least technically demanding, were the first nuclear weapons built and have so far been the only type ever used in warfare (by the United States on Japan during WWII). * boosted fission weapons increase yield beyond that of the implosion design by using small quantities of fusion fuel to enhance the fission chain reaction. Boosting can more than double the weapon's fission energy yield. * staged thermonuclear weapons are essentially arrangements of two or more "stages", most usually two. The first stage is normally a boosted fission weapon as above (except for the earliest thermonuclear weapons, which used a pure fission weapon instead). Its detonation causes it to shine intensely with x-radiation, which illuminates and implodes the second stage filled wit ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Lead Acid Battery
Lead is a chemical element with the symbol Pb (from the Latin ) and atomic number 82. It is a heavy metal that is denser than most common materials. Lead is soft and malleable, and also has a relatively low melting point. When freshly cut, lead is a shiny gray with a hint of blue. It tarnishes to a dull gray color when exposed to air. Lead has the highest atomic number of any stable element and three of its isotopes are endpoints of major nuclear decay chains of heavier elements. Lead is toxic, even in small amounts, especially to children. Lead is a relatively unreactive post-transition metal. Its weak metallic character is illustrated by its amphoteric nature; lead and lead oxides react with acids and bases, and it tends to form covalent bonds. Compounds of lead are usually found in the +2 oxidation state rather than the +4 state common with lighter members of the carbon group. Exceptions are mostly limited to organolead compounds. Like the lighter members of the group, le ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Lincolnshire
Lincolnshire (abbreviated Lincs.) is a county in the East Midlands of England, with a long coastline on the North Sea to the east. It borders Norfolk to the south-east, Cambridgeshire to the south, Rutland to the south-west, Leicestershire and Nottinghamshire to the west, South Yorkshire to the north-west, and the East Riding of Yorkshire to the north. It also borders Northamptonshire in the south for just , England's shortest county boundary. The county town is Lincoln, where the county council is also based. The ceremonial county of Lincolnshire consists of the non-metropolitan county of Lincolnshire and the area covered by the unitary authorities of North Lincolnshire and North East Lincolnshire. Part of the ceremonial county is in the Yorkshire and the Humber region of England, and most is in the East Midlands region. The county is the second-largest of the English ceremonial counties and one that is predominantly agricultural in land use. The county is fourth-larg ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
RAF Faldingworth
Royal Air Force Faldingworth or more simply RAF Faldingworth is a former Royal Air Force station used during and after the Second World War. It was located close to the village of Faldingworth in Lincolnshire, England. Development By 1936 the RAF Expansion Scheme had overseen a period of rapid increases both in terms of aircraft operated and the development of new stations. The Faldingworth site was one of several earmarked under the expansion programme. As it developed, it made an increasingly dramatic imposition on the surrounding rural landscape such as to the Lincolnshire Edge, a Jurassic limestone ridge, which forms the distinctive backbone of the county from Whitton on the Humber Estuary in the north, down to Grantham in the south. It provides a continuous homogenous landscape of high quality agricultural land, with a number of local variations. To the west of the Edge, the gently undulating Trent Vale eventually flows into the moors and levels of Humberhead, draining t ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Suffolk
Suffolk () is a ceremonial county of England in East Anglia. It borders Norfolk to the north, Cambridgeshire to the west and Essex to the south; the North Sea lies to the east. The county town is Ipswich; other important towns include Lowestoft, Bury St Edmunds, Newmarket, and Felixstowe which has one of the largest container ports in Europe. The county is low-lying but can be quite hilly, especially towards the west. It is also known for its extensive farming and has largely arable land with the wetlands of the Broads in the north. The Suffolk Coast & Heaths and Dedham Vale are both nationally designated Areas of Outstanding Natural Beauty. History Administration The Anglo-Saxon settlement of Suffolk, and East Anglia generally, occurred on a large scale, possibly following a period of depopulation by the previous inhabitants, the Romanised descendants of the Iceni. By the fifth century, they had established control of the region. The Anglo-Saxon inhabitants later b ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
RAF Barnham
RAF Barnham (also called Barnham Camp) is a Royal Air Force station situated in the English county of Suffolk south of the Norfolk town of Thetford. It is located to the north of the village of Barnham on Thetford Heaths. The camp is a satellite station of RAF Honington. During the 1950s and 60s a part of RAF Barnham was set aside as high-security storage facility for nuclear weapons. This area of the site is now a scheduled monument. Earlier than that, Barnham had been used as a chemical weapons store and filling station from 22 August 1939. In 1966, the nuclear weapons storage facility was put up for sale, and now forms the privately owned Gorse Industrial Estate. The chemical weapon store and former chemical weapon filling station are situated at Little Heath, Barnham down the dead-end Station Road. Location The present main gate of RAF Barnham can be found directly off Bury Road (A134) between Barnham village and Thetford. The entrance to the former nuclear weapons stor ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Red Beard (nuclear Weapon)
Red Beard was the first British tactical nuclear weapon. It was carried by Royal Air Force (RAF) English Electric Canberra medium bombers and the V bomber force and by Supermarine Scimitars, de Havilland Sea Vixens, and Blackburn Buccaneers of the Royal Navy's (RN) Fleet Air Arm (FAA). Developed to Operational Requirement OR.1127,Public Record Office, London. AIR 2/17322-e041-P01. it was introduced in 1961, entered service in 1962. It was replaced by the WE.177 in the early 1970s and was withdrawn from service in 1971. Design Red Beard was an unboosted fission weapon that used a composite core (mixed core in British terminology of the time). The composite core used both weapons-grade plutonium and weapons-grade uranium-235, and was intended to minimise the risk of pre-detonation that was a feature of all-plutonium designs of that period with yields larger than 10 kilotons (kt). An added benefit of the composite core was a more economical use of fissile material. The ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Short Sperrin
The Short SA.4 Sperrin (named after the Sperrin Mountains) was a British jet bomber design of the early 1950s, built by Short Brothers and Harland of Belfast. It first flew in 1951. From the onset, the design had been viewed as a fall-back option in case the more advanced strategic bomber aircraft, then in development to equip the Royal Air Force's nuclear-armed V bomber force, experienced delays; the Sperrin was not put into production because these swept-wing designs, such as the Vickers Valiant, were by then available. As their usefulness as an interim bomber aircraft did not emerge, a pair of flying prototypes were instead used to gather research data on large jet aircraft and to support the development of other technologies, such as several models of jet engines. The two aircraft completed were retired in the late 1950s and ultimately scrapped sometime thereafter. Development The Air Ministry issued a specification on 11 August 1947 B.14/46 for a "medium-range bomber lan ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
RAF Wittering
Royal Air Force Wittering or more simply RAF Wittering is a Royal Air Force station within the unitary authority area of Peterborough, Cambridgeshire and the unitary authority area of North Northamptonshire. Although Stamford, Lincolnshire, Stamford in Lincolnshire is the nearest town, the runways of RAF Wittering cross the boundary between Cambridgeshire and Northamptonshire. History First World War Wittering's use as a military airfield dates back to 5 May 1916 when it began as Royal Flying Corps, RFC Stamford. The aerodrome was initially created for A Flight of No. 38 Squadron RAF, No. 38 (Home Defence) Squadron. In common with other Home Defence squadrons at the time it was used for training during the day and for air defence at night. From the flight's operational declaration in December 1916 until it deployed to France in November 1917, its Royal Aircraft Factory B.E.2, BE2cs, Royal Aircraft Factory R.E.7, RE7s, and Royal Aircraft Factory F.E.2, FE2bs were involved in an ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Predetonation
In nuclear physics, a nuclear chain reaction occurs when one single nuclear reaction causes an average of one or more subsequent nuclear reactions, thus leading to the possibility of a self-propagating series of these reactions. The specific nuclear reaction may be the fission of heavy isotopes (e.g., uranium-235, 235U). A nuclear chain reaction releases several million times more energy per reaction than any chemical reaction. History Chemical chain reactions were first proposed by German chemist Max Bodenstein in 1913, and were reasonably well understood before nuclear chain reactions were proposed. It was understood that chemical chain reactions were responsible for exponentially increasing rates in reactions, such as produced in chemical explosions. The concept of a nuclear chain reaction was reportedly first hypothesized by Hungarian scientist Leó Szilárd on September 12, 1933. Szilárd that morning had been reading in a London paper of an experiment in which protons f ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Fissile Material
In nuclear engineering, fissile material is material capable of sustaining a nuclear fission chain reaction. By definition, fissile material can sustain a chain reaction with neutrons of thermal energy. The predominant neutron energy may be typified by either slow neutrons (i.e., a thermal system) or fast neutrons. Fissile material can be used to fuel thermal-neutron reactors, fast-neutron reactors and nuclear explosives. Fissile vs fissionable According to the Ronen fissile rule, for a heavy element with 90 ≤ ''Z'' ≤ 100, its isotopes with , with few exceptions, are fissile (where ''N'' = number of neutrons and ''Z'' = number of protons).The fissile rule thus formulated indicates 33 isotopes as likely fissile: Th-225, 227, 229; Pa-228, 230, 232; U-231, 233, 235; Np-234, 236, 238; Pu-237, 239, 241; Am-240, 242, 244; Cm-243, 245, 247; Bk-246, 248, 250; Cf-249, 251, 253; Es-252, 254, 256; Fm-255, 257, 259. Only fourteen (including a long-lived ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
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