M21 mine
The M21 is a circular U.S. anti-tank landmine that uses a Misznay Schardin effect warhead. The mine uses an M607 pressure fuse, which can be adapted as a tilt rod fuze. The mine is triggered either by pressure, or by the tilt rod being forced beyond 20 degrees from the vertical by a force of more than 1.7 kg, either of these actions results in pressure being transferred via a bearing cap to a Belleville spring, which inverts, driving the firing pin into the M46 detonator. The M46 charge first ignites a black powder charge, which blows off the mine's cover, and clears any earth or debris that may have been on top of the mine. A fraction of a second later the main warhead detonates, driving and compressing a steel plate upwards, with enough force to penetrate 76 mm of armour at a distance of 530 mm. Approximately 200,000 M21 mines were produced in the U.S. and a licensed copies, the K441 and K442, were produced in South Korea.
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Mine (novel)
Mine is a novel written by American author Robert R. McCammon. It won the 1990 Bram Stoker Award for Best Novel.
Plot summary
The novel tells the story of Laura Clayborne, a successful journalist, the wife of a stockbroker and mother-to-be. With her life seemingly falling apart, Laura hopes that her newborn son, David, will make her life everything it ought to be.
Mary Terrell, aka Mary Terror, is a survivor of the radical 1960s and a once a member of the fanatical Storm Front Brigade. Mary lives in a hallucinatory world of memories, guns, and above all, murderous rage. After viewing an ad placed in a popular magazine, she becomes convinced that the former leader of the Brigade, Lord Jack, is commanding her to bring him the child she was carrying when her life was suddenly turned upside down.
Mary steals Laura's baby and the manhunt is on. With no help at all Laura sets out on a cross-country trip to reclaim that which is hers. But soon Laura realizes that in order to get back her son and her life she may have to become as savage as the woman she's hunting.
Mine (film)
Mine is a 1985 Turkish drama film directed by Atıf Yılmaz. It was entered into the 14th Moscow International Film Festival.
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Mine (Taproot song)
"Mine" is the second and final single from Taproot's second studio album Welcome. Along with "Poem", the song is one of the band's most successful singles. A music video was released for the song and was directed by System of a Down bassist Shavo Odadjian.
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M21
M21 or M-21 may refer to:
Transportation
Military
Other
Avenue C Line (Manhattan)
The M9 and is a local bus routes that operates along the Avenue C Line (also known as the Houston Street Line), in Manhattan, New York City, United States. The route runs mostly along Essex Street and Avenue C from Battery Park City to Kips Bay. Originally a streetcar line, it the Avenue C Line is now part of the M9 route, as well as the M21, which operates on the Houston Street Line. The M9 is operated by the New York City Transit Authority, and based out of the Michael J. Quill Depot.
History
The Avenue C Railroad (changed to the Houston, West Street and Pavonia Ferry Railroad in the early 1880s) was chartered June 3, 1874, and opened the Avenue C Line on October 18, 1869, connecting the Pavonia Ferry at the foot of Chambers Street with the Green Point Ferry at the foot of East 10th Street. Its route ran along West Street, a one-way pair of Charlton Street, Prince Street, and Stanton Street (eastbound) and Houston Street, 1st Avenue, and 3rd Street (westbound), Pitt Street/Avenue C, and 10th Street. By 1879, the line had been extended north on Avenue C from 10th Street, west on 17th Street (eastbound) and 18th Street (westbound), north over the Central Park, North and East River Railroad (First Avenue and East Belt Line) on Avenue A, 23rd Street, and 1st Avenue, west on 35th Street (westbound) and 36th Street (eastbound), north on Lexington Avenue, and west on 42nd Street to Grand Central Terminal. The Third Avenue Railroad also used the trackage on 42nd Street by 1884.
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