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Nitroglycerin (NG), also known as nitroglycerine, trinitroglycerin (TNG), nitro, glyceryl trinitrate (GTN), or 1,2,3-trinitroxypropane, is a dense, colorless, oily, explosive liquid most commonly produced by nitrating glycerol with white fuming nitric acid under conditions appropriate to the formation of the nitric acid ester. Chemically, the substance is an organic nitrate compound rather than a nitro compound, but the traditional name is retained. Invented in 1847 by Ascanio Sobrero, nitroglycerin has been used ever since as an active ingredient in the manufacture of explosives, namely dynamite, and as such it is employed in the construction, demolition, and mining industries. Since the 1880s, it has been used by the military as an active ingredient and gelatinizer for nitrocellulose in some solid propellants such as cordite and ballistite. It is a major component in double-based smokeless propellants used by reloaders. Combined with nitrocellulose, hundreds of powder combinations are used by rifle, pistol, and shotgun reloaders.
Cordite is a family of smokeless propellants developed and produced in the United Kingdom since 1889 to replace gunpowder as a military propellant. Like gunpowder, cordite is classified as a low explosive because of its slow burning rates and consequently low brisance. These produce a subsonic deflagration wave rather than the supersonic detonation wave produced by brisants, or high explosives. The hot gases produced by burning gunpowder or cordite generate sufficient pressure to propel a bullet or shell to its target, but not so quickly as to routinely destroy the barrel of the gun.
The downy woodpecker is a species of woodpecker, the smallest in North America.
Betula pubescens, commonly known as downy birch and also as moor birch, white birch, European white birch or hairy birch, is a species of deciduous tree, native and abundant throughout northern Europe and northern Asia, growing farther north than any other broadleaf tree. It is closely related to, and often confused with, the silver birch, but grows in wetter places with heavier soils and poorer drainage; smaller trees can also be confused with the dwarf birch.
Nobel is a village on the shores of Parry Sound, Ontario, Canada. It is in the Municipality of McDougall in the District of Parry Sound. The community is named after Alfred Nobel, the inventor of dynamite.
Capsicum pubescens is native to Bolivia, Peru and Ecuador and dates back to pre-Incan times; traces of its presence have been found in the Guitarrero Caves. The existence of Capsicum pubescens was documented by ancient Peruvians of the Paracas, Nazca, Moche, and Chimu cultures, through textiles, ceramics, and domestic remains. This chili pepper is the most important ingredient of the Bolivian sauce llajwa. It is also considered the flagship of Peru and it is consumed fresh, paste, dried, or ground. It belongs to a species of the genus Capsicum (pepper), and is known in Peru and Ecuador as rocoto, locoto in Bolivia and Argentina and as the manzano pepper in Mexico which means 'apple' for its apple-shaped fruit. This species is found primarily in Central and South America, and is known only in cultivation. The species name, pubescens, means hairy, which refers to the hairy leaves of this pepper. The hairiness of the leaves, along with the black seeds, distinguish this species from others. As they reach a relatively advanced age and the roots lignify quickly, sometimes they are called tree chili. Of all the domesticated species of peppers, this is the least widespread and systematically furthest away from all others. It is reproductively isolated from other species of the genus Capsicum. A very notable feature of this species is its ability to withstand cooler temperatures than other cultivated pepper plants, although it cannot withstand frost.
The .303 British or 7.7×56mmR, is a .303-inch (7.7 mm) calibre rimmed rifle cartridge.
.455 Webley is a British handgun cartridge, most commonly used in the Webley top break revolvers Marks I through VI. It is also known as ".455 Eley" and ".455 Colt".
Quercus pubescens, the downy oak or pubescent oak, is a species of white oak native to southern Europe and southwest Asia, from northern Spain (Pyrenees) east to the Crimea and the Caucasus. It is also found in France and parts of central Europe.
The mountain papaya also known as mountain pawpaw, papayuelo, chamburo, or simply "papaya" is a species of the genus Vasconcellea, native to the Andes of northwestern South America from Colombia south to central Chile, typically growing at altitudes of 1,500–3,000 metres (4,900–9,800 ft).
Aruvankadu is a small town located in The Nilgiris District, Tamil Nadu, India. It is located between Coonoor and Ooty on the NH 67, 6 km from Coonoor town and 12 km from Ooty. It is connected by frequent bus services from various towns and cities. Aruvankadu is also connected via the Nigiri Mountain Railway (NMR).
The Royal Naval Cordite Factory, Holton Heath (RNCF) was set up at Holton Heath, Dorset, England, in World War I to manufacture cordite for the Royal Navy. It was reactivated in World War II to manufacture gun propellants for the Admiralty and its output was supplemented by the Royal Navy Propellant Factory, Caerwent. After the end of World War II, the explosive manufacturing areas of the site were closed down and some areas of the site reopened as an Admiralty Research Establishment. A major part of the explosives site became a nature reserve in 1981. Other parts of the site were converted into an industrial estate; and some may be used for housing.
The QF 12 pounder 18 cwt gun was a 3-inch high-velocity naval gun used to equip larger British warships such as battleships for defence against torpedo boats. 18 cwt referred to the weight of gun and breech, to differentiate the gun from others that also fired the "12 pound" shell.
The BL 9.2-inch Mk VIII naval gun was designed for the new cordite propellants and was the first British wire-wound gun of this calibre.
The BL 6-inch gun Marks II, III, IV and VI were the second and subsequent generations of British 6-inch rifled breechloading naval guns, designed by the Royal Gun Factory in the 1880s following the first 6-inch breechloader, the relatively unsuccessful BL 6-inch 80-pounder gun designed by Elswick Ordnance. They were originally designed to use the old gunpowder propellants but from the mid-1890s onwards were adapted to use the new cordite propellant. They were superseded on new warships by the QF 6-inch gun from 1891.
The BL 7.5-inch Mk II–Mk V guns were a variety of 50-calibre naval guns used by Britain in World War I. They all had similar performance and fired the same shells.
Lactarius pubescens, commonly known as the downy milk cap, is a species of fungus in the family Russulaceae. It is a medium to large agaric with a creamy-buff, hairy cap, whitish gills and short stout stem. The fungus has a cosmopolitan distribution, and grows solitarily or in scattered groups on sandy soil under or near birch.
Cordites is a genus of longhorn beetles of the subfamily Lamiinae, containing the following species:
The .500/450 3¼-inch Magnum Black Powder Express, is a centerfire rifle cartridge developed in Britain.
Hypericum pubescens is a perennial herb in the Hypericaceae family. It is in the section Adenosepalum.
References
- ↑ BioLib.cz - Cordites pubescens. Retrieved on 8 September 2014.