|
Mine Clearance
Demining or mine clearance is the process of removing land mines from an area. In military operations, the object is to rapidly clear a path through a minefield, and this is often done with devices such as mine plows and blast waves. By contrast, the goal of ''humanitarian demining'' is to remove all of the landmines to a given depth and make the land safe for human use. Specially trained dogs are also used to narrow down the search and verify that an area is cleared. Mechanical devices such as flails and excavators are sometimes used to clear mines. A great variety of methods for detecting landmines have been studied. These include electromagnetic methods, one of which (ground penetrating radar) has been employed in tandem with metal detectors. Acoustic methods can sense the cavity created by mine casings. Sensors have been developed to detect vapor leaking from landmines. Animals such as rats and mongooses can safely move over a minefield and detect mines, and animals can al ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
2004
2004 was designated as an International Year of Rice by the United Nations, and the International Year to Commemorate the Struggle Against Slavery and its Abolition (by UNESCO). Events January * January 3 – Flash Airlines Flight 604 crashes into the Red Sea off the coast of Egypt, killing all 148 aboard, making it one of the deadliest aviation accidents in Egyptian history at the time. * January 4 – NASA's MER-A (Spirit) spacecraft lands on the surface of Mars. * January 6 - Construction on the tallest man-made structure to date, the Burj Khalifa begins in Dubai UAE * January 8 – The RMS ''Queen Mary 2'', at the time the largest ocean liner ever built, is christened by its namesake's granddaughter, Queen Elizabeth II. * January 25 – NASA's MER-B ( Opportunity) spacecraft lands on the surface of Mars. February * February 4 – Mark Zuckerberg launches The Facebook, later renamed to Facebook, a social networking website for Harvard U ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Bounding Mine
{{Unreferenced, date=May 2021 A bounding mine is an anti-personnel mine designed to be used in open areas. When it is tripped, a small propelling charge launches the body of the mine 3 to 4 feet (90 to 120 cm) into the air, where the main charge detonates and sprays fragmentation at roughly waist height. The original World War II German S-mine has been widely influential. Other countries that have employed bounding mines in war include the United States, United Kingdom, the Soviet Union, Vietnam and countries of former Yugoslavia. China and Italy have also produced them. Some American mines designed for this purpose used a standard 60 mm HE mortar round with an improvised time delay fuse which is activated by the propelling charge. Bounding mines are more expensive than typical anti-personnel blast mines, and they do not lend themselves to scatterable designs. Because they are designed to be buried, they are appropriate for command-detonated ambushes, but tripwire oper ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Fire Support
Fire support is defined by the United States Department of Defense as " Fires that directly support land, maritime, amphibious, and special operations forces to engage enemy forces, combat formations, and facilities in pursuit of tactical and operational objectives." Typically, fire support is provided by artillery or close air support (usually directed by a forward observer), and is used to shape the battlefield or, more optimistically, define the battle. Warships, for example, have long provided naval gunfire support. Artillery observers allow adjusting fire. Fire support has been used since the advent of cannons in warfare as artillery. Fire support, as an extension, is the marriage of artillery to the forces in contact. It is the direct ability to properly use artillery. It is distinct from direct fire, which is provided by the forces in contact. Line companies in standard Heavy Brigade Combat Teams of the US Army The United States Army (USA) is the land service bran ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
United States Department Of The Army
The United States Department of the Army (DA) is one of the three military departments within the Department of Defense of the U.S. The Department of the Army is the federal government agency within which the United States Army (U.S.) is organized, and it is led by the secretary of the Army, who has statutory authority under 10 United States Code § 7013 to conduct its affairs and to prescribe regulations for its government, subject to the limits of the law, and the directions of the secretary of defense and the president. The secretary of the army is a civilian official appointed by the president and confirmed by the Senate. The highest-ranking military officer in the department is the chief of staff of the Army, who is also a member of the Joint Chiefs of Staff. Other senior officials of the department are the under secretary of the Army (principal deputy to the secretary) and the vice chief of staff of the Army (principal deputy to the chief of staff.) The '' Depa ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
GlobalSecurity
GlobalSecurity.org is an American nonpartisan, independent, nonprofit organization that serves as a think tank, and research and consultancy group. Focus The site is focused on national and international security issues; military analysis, systems, and strategies; intelligence matters; and space policy analysis. History It was founded in December 2000 by John Pike, who had worked since 1983 with the Federation of American Scientists, where he directed the space policy, cyberstrategy, military analysis, nuclear resource, and intelligence resource projects. GlobalSecurity.org is headquartered in the Washington, D.C. metropolitan area in Alexandria, Virginia, and Pike remains as its director. The website's target audience includes journalists, policy-makers, scholars, political scientists, military and defense personnel, and the public. It supplies background information and developing news stories, providing online analysis and articles that analyze what are sometimes little-dis ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Pioneer (military)
A pioneer () is a soldier employed to perform engineering and construction tasks. The term is in principle similar to sapper or combat engineer. Pioneers were originally part of the artillery branch of European armies. Subsequently, they formed part of the engineering branch, the logistic branch, part of the infantry, or even comprised a branch in their own right. Historically, the primary role of pioneer units was to assist other arms in tasks such as the construction of field fortifications, military camps, bridges and roads. Prior to and during the First World War, pioneers were often engaged in the construction and repair of military railways. During World War II, pioneer units were used extensively by all major forces, both on the front line and in supporting roles. During the 20th century, British Commonwealth military forces came to distinguish between small units of "assault pioneers" belonging to infantry regiments and separate pioneer units (as in the former Royal P ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Sapper
A sapper, also called a pioneer or combat engineer, is a combatant or soldier who performs a variety of military engineering duties, such as breaching fortifications, demolitions, bridge-building, laying or clearing minefields, preparing field defenses, and road and airfield construction and repair. They are also trained and equipped to serve as provisional infantry, fighting as such as a secondary mission. A sapper's duties facilitate and support movement, defense, and survival of allied forces and impede those of enemies. The term "sapper" is used in the British Army and Commonwealth nations and the U.S. military. The word "sapper" comes from the French word ''sapeur'', itself being derived from the verb ''saper'' (to undermine, to dig under a wall or building to cause its collapse). Historical origin Sapping A sapper, in the sense first used by the French military, was one who dug trenches to allow besieging forces to advance towards the enemy defensive works and ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Combat Engineering
A combat engineer (also called pioneer or sapper) is a type of soldier who performs military engineering tasks in support of land forces combat operations. Combat engineers perform a variety of military engineering, tunnel and mine warfare tasks as well as construction and demolition duties in and out of combat zones. Combat engineers facilitate the mobility of friendly forces while impeding that of the enemy. They also work to assure the survivability of friendly forces, building fighting positions, fortifications, and roads. They conduct demolitions missions and clear minefields manually or through use of specialized vehicles. Common combat engineer missions include construction and breaching of trenches, tank traps and other obstacles and fortifications; obstacle emplacement and bunker construction; route clearance and reconnaissance; bridge and road construction or destruction; emplacement and clearance of land mines; and combined arms breaching. Typically, combat engineer ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
The British Army In Normandy 1944 B7342
''The'' () is a grammatical article in English, denoting persons or things already mentioned, under discussion, implied or otherwise presumed familiar to listeners, readers, or speakers. It is the definite article in English. ''The'' is the most frequently used word in the English language; studies and analyses of texts have found it to account for seven percent of all printed English-language words. It is derived from gendered articles in Old English which combined in Middle English and now has a single form used with pronouns of any gender. The word can be used with both singular and plural nouns, and with a noun that starts with any letter. This is different from many other languages, which have different forms of the definite article for different genders or numbers. Pronunciation In most dialects, "the" is pronounced as (with the voiced dental fricative followed by a schwa) when followed by a consonant sound, and as (homophone of pronoun '' thee'') when followed by a ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
University Of Ljubljana
The University of Ljubljana ( sl, Univerza v Ljubljani, , la, Universitas Labacensis), often referred to as UL, is the oldest and largest university in Slovenia. It has approximately 39,000 enrolled students. History Beginnings Although certain academies (notably of philosophy and theology) were established as Jesuit higher education in what is now Slovenia as early as the seventeenth century, the first university was founded in 1810 under the ''Écoles centrales'' of the French imperial administration of the Illyrian provinces. The chancellor of the university in Ljubljana during the French period was Joseph Walland (a.k.a. , 1763–1834), born in Upper Carniola. That university was disbanded in 1813, when Austria regained territorial control and reestablished the Imperial Royal Lyceum of Ljubljana as a higher-education institution. Quest for a national university During the second half of the 19th century, several political claims for the establishment of a Slovene-language ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Ammonium Nitrate
Ammonium nitrate is a chemical compound with the chemical formula . It is a white crystalline salt consisting of ions of ammonium and nitrate. It is highly soluble in water and hygroscopic as a solid, although it does not form hydrates. It is predominantly used in agriculture as a high-nitrogen fertilizer.Karl-Heinz Zapp "Ammonium Compounds" in ''Ullmann's Encyclopedia of Industrial Chemistry'' 2012, Wiley-VCH, Weinheim. Global production was estimated at 21.6 million tonnes in 2017. Its other major use is as a component of explosive mixtures used in mining, quarrying, and civil construction. It is the major constituent of ANFO, a popular industrial explosive which accounts for 80% of explosives used in North America; similar formulations have been used in improvised explosive devices. Many countries are phasing out its use in consumer applications due to concerns over its potential for misuse. [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Pentaerythritol Tetranitrate
Pentaerythritol tetranitrate (PETN), also known as PENT, PENTA, (ПЕНТА, primarily in Russian) TEN, corpent, or penthrite (or, rarely and primarily in German, as nitropenta), is an explosive material. It is the nitrate ester of pentaerythritol, and is structurally very similar to nitroglycerin. Penta refers to the five carbon atoms of the neopentane skeleton. PETN is a very powerful explosive material with a relative effectiveness factor of 1.66. When mixed with a plasticizer, PETN forms a plastic explosive. Along with RDX it is the main ingredient of Semtex. PETN is also used as a vasodilator drug to treat certain heart conditions, such as for management of angina. History Pentaerythritol tetranitrate was first prepared and patented in 1894 by the explosives manufacturer Rheinisch-Westfälische Sprengstoff A.G. of Cologne, Germany. The production of PETN started in 1912, when the improved method of production was patented by the German government. PETN was used by the ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
.jpg "Click for more on -> 2004")
.jpg "Click for more on -> Fire Support")
.png "Click for more on -> The British Army In Normandy 1944 B7342")
