|
Detcord
Detonating cord (also called detonation cord, detacord, detcord, primer cord, or sun cord) is a thin, flexible plastic tube usually filled with pentaerythritol tetranitrate (PETN, pentrite). With the PETN exploding at a rate of approximately , any common length of detonation cord appears to explode instantaneously. It is a high-speed fuse which explodes, rather than burns, and is suitable for detonating high explosives. The detonation velocity is sufficient to use it for synchronizing multiple charges to detonate almost simultaneously even if the charges are placed at different distances from the point of initiation. It is used to reliably and inexpensively chain together multiple explosive charges. Typical uses include mining, drilling, demolitions, and warfare. "Cordtex" and "Primacord" are two of many trademarks which have slipped into use as a generic term for this material. Effects As a transmission medium, it can act as a downline between the initiator (usually a trigg ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Explosive Booster
{{unreferenced, date=August 2011 An explosive booster is a sensitive explosive charge that acts as a bridge between a (relatively weak) conventional detonator and a low-sensitivity (but typically high-energy) explosive such as TNT. By itself, the initiating detonator would not deliver sufficient energy to set off the low-sensitivity charge. However, it detonates the primary charge (the booster), which then delivers an explosive shockwave that is sufficient to detonate the secondary, main, high-energy charge. Unlike C4 plastic explosive, not all explosives can be detonated simply by inserting a detonator and firing it. An initiator such as a shock tube, cannon fuse, or even a conventional detonator does not deliver sufficient shock to detonate charges comprising TNT, Composition B, ANFO and many other high explosives. Therefore, some form of "booster" is required to amplify the energy released by the detonator so that the main charge will detonate. At first, picric acid was use ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Detonation Velocity
Explosive velocity, also known as detonation velocity or velocity of detonation (VoD), is the velocity at which the shock wave front travels through a detonated explosive. Explosive velocities are always faster than the local speed of sound in the material. If the explosive is confined before detonation, such as in an artillery shell, the force produced is focused on a much smaller area, and the pressure is significantly intensified. This results in an explosive velocity that is higher than if the explosive had been detonated in open air. Unconfined velocities are often approximately 70 to 80 percent of confined velocities. Explosive velocity is increased with smaller particle size (i.e., increased spatial density), increased charge diameter, and increased confinement (i.e., higher pressure). Typical detonation velocities for organic dust mixtures range from 1400–1650m/s. Gas explosions can either deflagrate or detonate based on confinement; detonation velocities are generally ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
US Marines 100830-M-DX861-005 Detonation Cord
The United States of America (U.S.A. or USA), commonly known as the United States (U.S. or US) or America, is a country primarily located in North America. It consists of 50 states, a federal district, five major unincorporated territories, nine Minor Outlying Islands, and 326 Indian reservations. The United States is also in free association with three Pacific Island sovereign states: the Federated States of Micronesia, the Marshall Islands, and the Republic of Palau. It is the world's third-largest country by both land and total area. It shares land borders with Canada to its north and with Mexico to its south and has maritime borders with the Bahamas, Cuba, Russia, and other nations. With a population of over 333 million, it is the most populous country in the Americas and the third most populous in the world. The national capital of the United States is Washington, D.C. and its most populous city and principal financial center is New York City. Paleo-America ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Nylon
Nylon is a generic designation for a family of synthetic polymers composed of polyamides ( repeating units linked by amide links).The polyamides may be aliphatic or semi-aromatic. Nylon is a silk-like thermoplastic, generally made from petroleum, that can be melt-processed into fibers, films, or shapes. Nylon polymers can be mixed with a wide variety of additives to achieve many property variations. Nylon polymers have found significant commercial applications in fabric and fibers (apparel, flooring and rubber reinforcement), in shapes (molded parts for cars, electrical equipment, etc.), and in films (mostly for food packaging). History DuPont and the invention of nylon Researchers at DuPont began developing cellulose based fibers, culminating in the synthetic fiber rayon. DuPont's experience with rayon was an important precursor to its development and marketing of nylon. DuPont's invention of nylon spanned an eleven-year period, ranging from the initial research pr ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Terminator Salvation
''Terminator Salvation'' is a 2009 American military science fiction action film directed by McG and written by John Brancato and Michael Ferris. It is the fourth installment of the ''Terminator'' franchise and serves as a sequel to '' Terminator 3: Rise of the Machines'' (2003). This is the first and only Terminator film to date not to feature Arnold Schwarzenegger, though his likeness briefly appears digitally. Instead, it stars Christian Bale and Sam Worthington with Anton Yelchin, Moon Bloodgood, Bryce Dallas Howard, Common, Michael Ironside and Helena Bonham Carter in supporting roles. In a departure from the previous installments, ''Salvation'' is a post-apocalyptic film set in the year 2018. It focuses on the war between Skynet's machine network and humanity, as the remnants of the world's militaries have united to form the Resistance to fight against Skynet. Bale portrays John Connor, a Resistance fighter and central character, while Worthington portrays cyborg Marcus ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Timothy Olyphant
Timothy David Olyphant ( ; born May 20, 1968) is an American actor. He made his acting debut in an off-Broadway theater in 1995, in ''The Monogamist'', and won the Theatre World Award for his performance, and then originated David Sedaris' ''The Santaland Diaries'' in 1996. He then branched out to film; in the early years of his career, he was often cast in supporting villainous roles, most notably in '' Scream 2'' (1997), '' Go'' (1999), ''A Man Apart'' (2003), '' Gone in 60 Seconds'' (2000), and '' The Girl Next Door'' (2004). He came to the attention of a wider audience with his portrayal of Sheriff Seth Bullock in HBO's western '' Deadwood'' (2004–2006), later reprising the role in '' Deadwood: The Movie'' (2019). He had starring roles in such films as '' Catch and Release'' (2006), '' Hitman'' (2007), ''A Perfect Getaway'' (2009), and '' The Crazies'' (2010), and he played the main antagonist, Thomas Gabriel, in ''Live Free or Die Hard'' (2007). Olyphant was a recurring ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
A Perfect Getaway
''A Perfect Getaway'' is a 2009 American thriller film written and directed by David Twohy and starring Timothy Olyphant, Milla Jovovich, Kiele Sanchez, and Steve Zahn. Olyphant, Jovovich, Sanchez, and Zahn portray a group of vacationing couples in Hawaii who find their lives in danger when murders begin to occur on the island, leading to suspicions over one of the couples being the killers. Shot in Hawaii and Puerto Rico, ''A Perfect Getaway'' was released on August 7, 2009, in the United States. It received generally positive reviews from critics and grossed $22 million on a $14 million budget. Plot For their honeymoon, newlyweds Cliff and Cydney travel to Hawaii. After making a travel video in the car, the two spend the night in a hotel before driving off in order to start hiking towards a remote beach. Whilst in the car, the two encounter fellow couple; kind-hearted Cleo who attempts to hitchhike with them and hot-headed Kale who takes Cleo away from the two. On the hike, ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Filipino Language
Filipino (; , ) is an Austronesian language. It is the national language ( / ) of the Philippines, and one of the two official languages of the country, with English. It is a standardized variety of Tagalog based on the native dialect, spoken and written, in Metro Manila, the National Capital Region, and in other urban centers of the archipelago. The 1987 Constitution mandates that Filipino be further enriched and developed by the other languages of the Philippines. Filipino is only used as a tertiary language in the Philippine public sphere. Filipino, like other Austronesian languages, commonly uses verb-subject-object order, but can also use subject-verb-object order as well. Filipino follows the trigger system of morphosyntactic alignment that is also common among Austronesian languages. It has head-initial directionality. It is an agglutinative language but can also display inflection. It is not a tonal language and can be considered a pitch-accent language and a sy ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Special Effect
Special effects (often abbreviated as SFX, F/X or simply FX) are illusions or visual tricks used in the theatre, film, television, video game, amusement park and simulator industries to simulate the imagined events in a story or virtual world. Special effects are traditionally divided into the categories of mechanical effects and optical effects. With the emergence of digital film-making a distinction between special effects and visual effects has grown, with the latter referring to digital post-production and optical effects, while "special effects" refers to mechanical effects. Mechanical effects (also called practical or physical effects) are usually accomplished during the live-action shooting. This includes the use of mechanized props, scenery, scale models, animatronics, pyrotechnics and atmospheric effects: creating physical wind, rain, fog, snow, clouds, making a car appear to drive by itself and blowing up a building, etc. Mechanical effects are also often inco ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Grain (measure)
A grain is a unit of measurement of mass, and in the troy weight, avoirdupois, and apothecaries' systems, equal to exactly milligrams. It is nominally based upon the mass of a single ideal seed of a cereal. From the Bronze Age into the Renaissance, the average masses of wheat and barley grains were part of the legal definitions of units of mass. Expressions such as "thirty-two grains of wheat, taken from the middle of the ear" appear to have been ritualistic formulas, essentially the premodern equivalent of legal boilerplate. Another source states that it was defined such that 252.458 units would balance of distilled water at an ambient air-water pressure and temperature of and respectively. Another book states that Captain Henry Kater, of the British Standards Commission, arrived at this value experimentally. The grain was the legal foundation of traditional English weight systems, and is the only unit that is equal throughout the troy, avoirdupois, and apothecaries' sys ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Water Gel Explosive
A water-gel explosive is a fuel sensitized explosive mixture consisting of an aqueous ammonium nitrate solution that acts as the oxidizer. Water gels that are cap-insensitive are referred to under United States safety regulations as blasting agents. Water gel explosives have a jelly-like consistency and come in sausage-like packing stapled shut on both sides. Water-gel explosives have almost completely displaced dynamite, becoming the most-used civil blasting agents. Composition Water gels usually have many different ingredients. They contain a gelatinizing agent, also known as a thickener, that modifies their consistency, ranging from easily pourable gels to hard solids. Polyvinyl alcohol, guar gum, dextran gums, and urea-formaldehyde resins are the typical gelling agents. Guar, specifically, is a gelling agent used for the aqueous portion of the water gel explosives. The primary component of water gels is methylamine nitrate. Methylamine nitrate is the salt formed by the neu ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
ANFO
ANFO ( ) (or AN/FO, for ammonium nitrate/fuel oil) is a widely used bulk industrial explosive. It consists of 94% porous prilled ammonium nitrate (NH4NO3) (AN), which acts as the oxidizing agent and absorbent for the fuel, and 6% number 2 fuel oil (FO). The use of ANFO originated in the 1950s. ANFO accounts for an estimated 90% of the of explosives used annually in North America. It has found wide use in coal mining, quarrying, metal mining, and civil construction in applications where its low cost and ease of use may outweigh the benefits of other explosives, such as water resistance, oxygen balance, higher detonation velocity, or performance in small-diameter columns. ANFO is also widely used in avalanche hazard mitigation. Chemistry The chemistry of ANFO detonation is the reaction of ammonium nitrate with a long-chain alkane (CnH2n+2) to form nitrogen, carbon dioxide, and water. In an ideal stoichiometrically balanced reaction, ANFO is composed of about 94.5% AN and 5. ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
.jpg "Click for more on -> Timothy Olyphant")
_explosive.jpg "Click for more on -> ANFO")