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United States Hand Grenades
The military of the United States has used many different types of hand grenades since its foundation. Presented on this page is a basic overview. High explosive, fragmentation, and blast Mk II and Mk IIA1 More commonly known as the ''Pineapple'', the Mk II series (also written Mk 2) was the most common US fragmentation grenade of the Second World War. The Mk II had a grooved exterior originally intended to aid fragmentation of the grenade. However, later studies showed that this design has no effect on fragmentation, though it does provide a non-slip surface that improves grip. The filling was either EC blank fire powder (approx. smokeless small arms powder) or flaked TNT (approx. ); TNT became the common filler from 1942 onwards.Vilinsky, Alan. ''WWII US Army Reenactment Association''Hand Grenades, 19 August 2006. Access date: 18 April 2007. The Mk II was also available in a little-known HE-Blast (better known as ''concussion'') variant and a combined effect HE-Frag variant. ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
United States Armed Forces
The United States Armed Forces are the military forces of the United States. The armed forces consists of six service branches: the Army, Marine Corps, Navy, Air Force, Space Force, and Coast Guard. The president of the United States is the commander-in-chief of the armed forces and forms military policy with the Department of Defense (DoD) and Department of Homeland Security (DHS), both federal executive departments, acting as the principal organs by which military policy is carried out. All six armed services are among the eight uniformed services of the United States. From their inception during the American Revolutionary War, the U.S. Armed Forces have played a decisive role in the history of the United States. They helped forge a sense of national unity and identity through victories in the First Barbary War and the Second Barbary War. They played a critical role in the American Civil War, keeping the Confederacy from seceding from the republic and preserving the uni ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Chlorosulfuric Acid
Chlorosulfuric acid (IUPAC name: sulfurochloridic acid) is the inorganic compound with the formula HSO3Cl. It is also known as chlorosulfonic acid, being the sulfonic acid of chlorine. It is a distillable, colorless liquid which is hygroscopic and a powerful lachrymator. Commercial samples usually are pale brown or straw colored. Salts and esters of chlorosulfuric acid are known as chlorosulfates. Structure and properties Chlorosulfuric acid is a tetrahedral molecule. The formula is more descriptively written SO2(OH)Cl, but HSO3Cl is traditional. It is an intermediate, chemically and conceptually, between sulfuryl chloride (SO2Cl2) and sulfuric acid (H2SO4). The compound is rarely obtained pure. Upon standing with excess sulfur trioxide, it decomposes to pyrosulfuryl chlorides: :2 ClSO3H + SO3 → H2SO4 + S2O5Cl2 Synthesis The industrial synthesis entails the reaction of hydrogen chloride with a solution of sulfur trioxide in sulfuric acid: :HCl + SO3 → ClSO3H It can al ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Blood Agent
A blood agent is a toxic chemical agent that affects the body by being absorbed into the blood. Blood agents are fast-acting, potentially lethal poisons that typically manifest at room temperature as volatile colorless gases with a faint odor. They are either cyanide- or arsenic-based. Exposure Blood agents work through inhalation or ingestion. As chemical weapons, blood agents are typically disseminated as aerosols and take effect through inhalation. Due to their volatility, they are more toxic in confined areas than in open areas. Cyanide compounds occur in small amounts in the natural environment and in cigarette smoke. They are also used in several industrial processes and as pesticides. Cyanides are released when synthetic fabrics or polyurethane burn, and may thus contribute to fire-related deaths.Walsh, 151. Arsine gas, formed when arsenic encounters an acid, is used as a pesticide and in the semiconductor industry; most exposures to it occur accidentally in the workp ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Hydrogen Cyanide
Hydrogen cyanide, sometimes called prussic acid, is a chemical compound with the formula HCN and structure . It is a colorless, extremely poisonous, and flammable liquid that boils slightly above room temperature, at . HCN is produced on an industrial scale and is a highly valued precursor to many chemical compounds ranging from polymers to pharmaceuticals. Large-scale applications are for the production of potassium cyanide and adiponitrile, used in mining and plastics, respectively. It is more toxic than solid cyanide compounds due to its volatile nature. Structure and general properties Hydrogen cyanide is a linear molecule, with a triple bond between carbon and nitrogen. The tautomer of HCN is HNC, hydrogen isocyanide. Hydrogen cyanide is weakly acidic with a p''K''a of 9.2. It partially ionizes in water solution to give the cyanide anion, CN−. A solution of hydrogen cyanide in water, represented as HCN, is called ''hydrocyanic acid''. The salts of the cyanide ani ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
M1 Frangible Grenade
The Frangible Grenade M1 was a specially designed factory produced molotov cocktail created by the United States in 1942 as it entered World War II (1939–1945). It was designed to provide lightly armed personnel (self-defense militias, soldiers, commandos, and Allied partisans) with simple, uncomplicated weapons that were easy to mass-produce. It provided a cheap stopgap means of knocking out enemy vehicles, clearing out strongpoints, and harassing or killing enemy personnel until more effective weapons could be produced and distributed. It was dubbed "frangible" because it was made from glass, which is brittle and easily broken. History In late December 1941 the United States entered into World War II with an unprepared military, low stocks of arms and munitions, and fears of attack or invasion by the Axis Powers. To counter this looming threat, a series of Molotov cocktail-style devices, nominally designated as "grenades", were developed in early 1942. It consisted of a pint-s ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
DuPont
DuPont de Nemours, Inc., commonly shortened to DuPont, is an American multinational chemical company first formed in 1802 by French-American chemist and industrialist Éleuthère Irénée du Pont de Nemours. The company played a major role in the development of Delaware and first arose as a major supplier of gunpowder. DuPont developed many polymers such as Vespel, neoprene, nylon, Corian, Teflon, Mylar, Kapton, Kevlar, Zemdrain, M5 fiber, Nomex, Tyvek, Sorona, Corfam and Lycra in the 20th century, and its scientists developed many chemicals, most notably Freon (chlorofluorocarbons), for the refrigerant industry. It also developed synthetic pigments and paints including ChromaFlair. In 2015, DuPont and the Dow Chemical Company agreed to a reorganization plan in which the two companies would merge and split into three. As a merged entity, DuPont simultaneously acquired Dow and renamed itself to DowDuPont on August 31, 2017, and after 18 months spin off the merged entity' ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Mk 1 Illum Drawing
MK or mk may refer to: In arts, entertainment and media Fictional characters * Moon Knight, a Marvel Comics superhero * M.K., an '' ''Into the Badlands'' (TV series) character * Mary Katherine "M.K." Bomba, the protagonist in ''Epic'' (2013 film) Video games * '' Makai Kingdom: Chronicles of the Sacred Tome'', a tactical role-playing game * '' Mario Kart'', a series of racing video games developed and published by Nintendo featuring characters from the ''Mario'' franchise * '' Mortal Kombat'', a series of fighting video games developed and published by Midway Games, and later Warner Bros Other media * MK (channel), a defunct, South African, Afrikaans-language music television channel * Moskovskij Komsomolets, a Russian newspaper In business and finance * Markup (business), a term for the difference between the cost of a good or service and its selling price * Mark (designation), a designation used to identify versions of a product or item, e.g. Mk. II * Finnish markka (sy ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Vietnam War
The Vietnam War (also known by #Names, other names) was a conflict in Vietnam, Laos, and Cambodia from 1 November 1955 to the fall of Saigon on 30 April 1975. It was the second of the Indochina Wars and was officially fought between North Vietnam and South Vietnam. The north was supported by the Soviet Union, China, and other communist states, while the south was United States in the Vietnam War, supported by the United States and other anti-communism, anti-communist Free World Military Forces, allies. The war is widely considered to be a Cold War-era proxy war. It lasted almost 20 years, with direct U.S. involvement ending in 1973. The conflict also spilled over into neighboring states, exacerbating the Laotian Civil War and the Cambodian Civil War, which ended with all three countries becoming communist states by 1975. After the French 1954 Geneva Conference, military withdrawal from Indochina in 1954 – following their defeat in the First Indochina War – the Viet Minh to ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
M34 Grenade
The M34 White Phosphorus Smoke Grenade or "Willie Pete" was a smoke / incendiary grenade manufactured by Rocky Mountain Arsenal from the late 1950s and used by U.S. forces during the Vietnam War and was also used during the First Gulf War. The M34 WP Grenade replaced the World War II M15 WP grenade. The M34 could be fired from a rifle grenade launcher using M2-series grenade launching adapters, which the groove around the tapered base allowing the adapter arms to grasp it. The M15 could not be fired as a rifle grenade. The M34 had a segmented body to allow for a better hand grip and to identify it as a casualty-producing grenade, even though fragmentation was not its primary damage mechanism. The smooth-bodied M15 was sometimes assumed to be a burning-type smoke grenade, and this sometimes resulted in injuries.Dockery 1997, p. 179. The grenade The M34 had a prescored cylindrical steel body with a conical base designed for compatibility with the M1 rifle grenade adapter using M195 ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
White Phosphorus
Elemental phosphorus can exist in several allotropes, the most common of which are white and red solids. Solid violet and black allotropes are also known. Gaseous phosphorus exists as diphosphorus and atomic phosphorus. White phosphorus White phosphorus, yellow phosphorus or simply tetraphosphorus () exists as molecules made up of four atoms in a tetrahedral structure. The tetrahedral arrangement results in ring strain and instability. The molecule is described as consisting of six single P–P bonds. Two crystalline forms are known. The α form is defined as the standard state of the element, but is actually metastable under standard conditions. It has a body-centered cubic crystal structure, and transforms reversibly into the β form at 195.2 K. The β form is believed to have a hexagonal crystal structure. White phosphorus is a translucent waxy solid that quickly becomes yellow when exposed to light. For this reason it is also called yellow phosphorus. It glows greenish ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
United States Navy SEALs
The United States Navy Sea, Air, and Land (SEAL) Teams, commonly known as Navy SEALs, are the U.S. Navy's primary special operations force and a component of the Naval Special Warfare Command. Among the SEALs' main functions are conducting small-unit special operation missions in maritime, jungle, urban, arctic, mountainous, and desert environments. SEALs are typically ordered to capture or to kill high level targets, or to gather intelligence behind enemy lines. All active SEALs are members of the U.S. Navy. The CIA's highly secretive and elite Special Operations Group (SOG) recruits operators from SEAL Teams, with joint operations going back to the MACV-SOG during the Vietnam War. This cooperation still exists today, as evidenced by military operations in Iraq and Afghanistan. History Origins Although not formally founded until 1962, the modern-day U.S. Navy SEALs trace their roots to World War II. The United States Military recognized the need for the covert reconnaiss ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Naval Air Weapons Station China Lake
Naval Air Weapons Station (NAWS) China Lake is a large military installation in California that supports the research, testing and evaluation programs of the United States Navy. It is part of Navy Region Southwest under Commander, Navy Installations Command, and was originally known as Naval Ordnance Test Station (NOTS). The installation is located in the Western Mojave Desert region of California, approximately north of Los Angeles. Occupying land in three counties – Kern, San Bernardino, and Inyo – the installation's closest neighbors are the city of Ridgecrest and the communities of Inyokern, Trona, and Darwin. China Lake is the United States Navy's largest single landholding, representing 85% of the Navy's land for weapons and armaments research, development, acquisition, testing and evaluation (RDAT&E) use and 38% of the Navy's land holdings worldwide. In total, its two ranges and main site cover more than , an area larger than the state of Rhode Island. As of 2010, ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
