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Cyclotol
Cyclotol is an explosive consisting of castable mixtures of RDX and TNT. It is related to the more common Composition B, which is roughly 60% RDX and 40% TNT; various compositions of Cyclotol contain from 65% to 80% RDX. Typical ranges are from 60/40 to 80/20 RDX/TNT, with the most common being 70/30, while the military mostly uses 77/23 optimized in warheads. Properties Use Cyclotol is not commonly used, but was reportedly the main explosive used in at least some models of US nuclear weapons A nuclear weapon is an explosive device that derives its destructive force from nuclear reactions, either nuclear fission, fission (fission or atomic bomb) or a combination of fission and nuclear fusion, fusion reactions (thermonuclear weap .... Sublette lists Cyclotol as the explosive in the US B28 nuclear bomb and possibly related weapons that used the common Python primary - W34, W28, W40, and W49. It was used in the B53 nuclear bomb and associated W53 warhead. ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Cyclotrimethylenetrinitramine
RDX (Research Department Explosive or Royal Demolition Explosive) or hexogen, among other names, is an organic compound with the formula (CH2N2O2)3. It is white, odorless, and tasteless, widely used as an explosive. Chemically, it is classified as a nitroamine alongside HMX, which is a more energetic explosive than trinitrotoluene, TNT. It was used widely in World War II and remains common in Military science, military applications. RDX is often used in mixtures with other explosives and plasticizers or phlegmatized, phlegmatizers (desensitizers); it is the explosive agent in C-4 (explosive), C-4 plastic explosive and a key ingredient in Semtex. It is stable in storage and is considered one of the most energetic and brisance, brisant of the military high explosives, with a relative effectiveness factor of 1.60. Name RDX is also less commonly known as cyclonite, hexogen (particularly in Russian, French and German-influenced languages), T4, and, chemically, as cyclotrimethylene tr ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Explosive
An explosive (or explosive material) is a reactive substance that contains a great amount of potential energy that can produce an explosion if released suddenly, usually accompanied by the production of light, heat, sound, and pressure. An explosive charge is a measured quantity of explosive material, which may either be composed solely of one ingredient or be a mixture containing at least two substances. The potential energy stored in an explosive material may, for example, be: * chemical energy, such as nitroglycerin or grain dust * pressurized gas, such as a gas cylinder, aerosol can, or boiling liquid expanding vapor explosion * nuclear energy, such as in the fissile isotopes uranium-235 and plutonium-239 Explosive materials may be categorized by the speed at which they expand. Materials that detonate (the front of the chemical reaction moves faster through the material than the speed of sound) are said to be "high explosives" and materials that deflagrate ar ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Composition B
Composition B (Comp B), also known as Hexotol and Hexolite (among others), is a high explosive consisting of castable mixtures of RDX and TNT. It is used as the main explosive filling in artillery projectiles, rockets, land mines, hand grenades, and various other munitions. It was also used for the explosive lenses in the first implosion-type nuclear weapons developed by the United Kingdom and United States.''Atom Bombs: The Top Secret Inside Story of Little Boy and Fat Man'', John Coster-Mullen, 2003Nuclear Weapons FAQ section 8.1.1: The Design of Gadget, Fat Man, and "Joe 1" (RDS-1) accessed August 10, 2009 The standard proportions of ingredients (by weight) are 59.5% RDX ( |
Mecca Masjid Bombing
A blast occurred on 18 May 2007 inside the Makkah Masjid, a mosque located in the old city area of Hyderabad, capital of the Indian state of Telangana located very close to Charminar. The blast was caused by a cellphone-triggered pipe bomb placed near the site designated for ablution. Two further live IEDs were found and defused by the police. Sixteen people were reported dead in the immediate aftermath, of whom five were killed by the police firing after the incident while trying to quell the mob angered by what they considered police failure to protect the Muslims during their worship. On 16 April 2018, the NIA Court acquitted all 11 who were accused in the blasts, citing lack of evidence. Overview The bomb exploded around 1:15 pm in Mecca Masjid, a 400-year-old mosque in Hyderabad. The IED contained cyclotol, a 60:40 mixture of RDX and TNT, filled in a by pipe. The bomb was placed under a heavy marble platform, which took the force of the impact and saved many liv ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
B53 Nuclear Bomb
The Mk/B53 was a high-yield bunker buster thermonuclear weapon developed by the United States during the Cold War. Deployed on Strategic Air Command bombers, the B53, with a yield of 9 megatons, was the most powerful weapon in the U.S. nuclear arsenal after the last B41 nuclear bombs were retired in 1976. The B53 was the basis of the W-53 warhead carried by the Titan II missile, which was decommissioned in 1987. Although not in active service for many years before 2010, fifty B53s were retained during that time as part of the "hedge" portion of the Enduring Stockpile until its complete dismantling in 2011. The last B53 was disassembled on 25 October 2011, a year ahead of schedule. With its retirement, the largest bomb currently in service in the U.S. nuclear arsenal is the B83, with a maximum yield of 1.2 megatons. The B53 was replaced in the bunker-busting role by the B61 Mod 11. History Development of the weapon began in 1955 by Los Alamos National Laboratory, base ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Igniter
In pyrotechnics, a pyrotechnic initiator (also initiator or igniter) is a device containing a pyrotechnic composition used primarily to ignite other, more difficult-to-ignite materials, such as thermites, gas generators, and solid-fuel rockets. The name is often used also for the compositions themselves. Pyrotechnic initiators are often controlled electrically (called electro-pyrotechnic initiators), e.g. using a heated bridgewire or a ''bridge resistor''. They are somewhat similar to blasting caps or other detonators, but they differ in that there is no intention to produce a shock wave. An example of such pyrotechnic initiator is an electric match. Composition The energetic material used, often called pyrogen, is usually a pyrotechnic composition made of a fuel and oxidizer, where the fuel produces a significant amount of hot particles that cause/promote the ignition of the desired material. Initiator compositions are similar to flash powders, but they differ in burning speed, ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Piezoelectric Crystal
Piezoelectricity (, ) is the electric charge that accumulates in certain solid materials—such as crystals, certain ceramics, and biological matter such as bone, DNA, and various proteins—in response to applied mechanical stress. The piezoelectric effect results from the linear electromechanical interaction between the mechanical and electrical states in crystalline materials with no inversion symmetry. The piezoelectric effect is a reversible process: materials exhibiting the piezoelectric effect also exhibit the reverse piezoelectric effect, the internal generation of a mechanical strain resulting from an applied electric field. For example, lead zirconate titanate crystals will generate measurable piezoelectricity when their static structure is deformed by about 0.1% of the original dimension. Conversely, those same crystals will change about 0.1% of their static dimension when an external electric field is applied. The inverse piezoelectric effect is used in the product ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Cluster Munition
A cluster munition is a form of air-dropped or ground-launched explosive weapon that releases or ejects smaller submunitions. Commonly, this is a cluster bomb that ejects explosive bomblets that are designed to kill personnel and destroy vehicles. Other cluster munitions are designed to destroy runways or electric power transmission lines. Because cluster bombs release many small bomblets over a wide area, they pose risks to civilians both during attacks and afterwards. Unexploded bomblets can kill or maim civilians and unintended targets long after a conflict has ended, and are costly to locate and remove. This failure rate ranges from 2 percent to over 40 percent. Cluster munitions are prohibited for those nations that ratified the Convention on Cluster Munitions, adopted in Dublin, Ireland, in May 2008. The Convention entered into force and became binding international law upon ratifying states on 1 August 2010, six months after being ratified by 30 states. As of 10 F ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
W28 (nuclear Warhead)
W28 may refer to: * Excavated dodecahedron In geometry, the excavated dodecahedron is a star polyhedron that looks like a regular dodecahedron, dodecahedron with concave pentagonal pyramids in place of its faces. Its exterior surface represents the The Fifty Nine Icosahedra, Ef1g1 stellati ... * Jiwarli dialect * Sequim Valley Airport, in Clallam County, Washington, United States * W28 (nuclear warhead) {{Letter-Number Combination Disambiguation ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
W40 (nuclear Warhead)
The W40 nuclear warhead was an American fusion-boosted fission nuclear warhead developed in the late 1950s and which saw service from 1959 to 1972. The W40 design was reportedly the common Python primary or fission core used by the US B28 nuclear bomb, W28 nuclear warhead, and W49 nuclear warhead. The W40 was in diameter, long, and weighed around . It had a design yield of 10 kilotons. The W40 was used in the MGM-18 Lacrosse The MGM-18 Lacrosse was a short-ranged tactical weapon intended for close support of ground troops. Its first flight test was in 1954 and was deployed by the United States Army beginning in 1959, despite being still in the development stage. The ... surface to surface missile (SRBM) and CIM-10 Bomarc surface to air missile (SAM). The Bomarc warhead was lethal to a medium bomber aircraft up to about one kilometer. The warheads were mounted to the missiles for 90 day intervals, after which they underwent periodic inspection and maintenance. The f ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Castable
In materials science, a refractory (or refractory material) is a material that is resistant to decomposition by heat or chemical attack and that retains its strength and rigidity at high temperatures. They are inorganic, non-metallic compounds that may be porous or non-porous, and their crystallinity varies widely: they may be crystalline, polycrystalline, amorphous, or composite. They are typically composed of oxides, carbides or nitrides of the following elements: silicon, aluminium, magnesium, calcium, boron, chromium and zirconium. Many refractories are ceramics, but some such as graphite are not, and some ceramics such as clay pottery are not considered refractory. Refractories are distinguished from the ''refractory metals'', which are elemental metals and their alloys that have high melting temperatures. Refractories are defined by ASTM C71 as "non-metallic materials having those chemical and physical properties that make them applicable for structures, or as components ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
