Mortar Munitions
Mortar may refer to: * Mortar (weapon), an indirect-fire infantry weapon * Mortar (masonry), a material used to fill the gaps between blocks and bind them together * Mortar and pestle, a tool pair used to crush or grind * Mortar, Bihar, a village in India * Mortar (organization), a nonprofit in Cincinnati, Ohio * The Manby mortar, an invention for rescuing shipwreck survivors See also * Mortar methods, discretization methods for partial differential equations * Mortarboard, a type of headwear worn as part of academic dress * Mortar Board Mortar Board is an American national honor society for college seniors. Mortar Board has 233 chartered collegiate chapters nationwide and 15 alumni chapters. History Mortar Board was the first national honor society for college senior women ...

Mortar (weapon)
A mortar is usually a simple, lightweight, man-portable, muzzle-loaded weapon, consisting of a smooth-bore (although some models use a rifled barrel) metal tube fixed to a base plate (to spread out the recoil) with a lightweight bipod mount and a sight. They launch explosive shells (technically called bombs) in high-arcing ballistic trajectories. Mortars are typically used as indirect fire weapons for close fire support with a variety of ammunition. History Mortars have been used for hundreds of years. The earliest mortars were used in Korea in a 1413 naval battle when Korean gunsmiths developed the ''wan'gu'' (gourd-shaped mortar) (완구, 碗口). The earliest version of the ''wan'gu'' dates back to 1407. Choi Hae-san (최해산, 崔海山) (1380–1443), the son of Choe Mu-seon (최무선, 崔茂宣) (1325–1395), is generally credited with inventing the ''wan'gu''. In the Ming dynasty, general Qi Jiguang recorded the use of a mini cannon called the Hu dun pao that was simi ...
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Mortar (masonry)
Mortar is a workable paste which hardens to bind building blocks such as stones, bricks, and concrete masonry units, to fill and seal the irregular gaps between them, spread the weight of them evenly, and sometimes to add decorative colors or patterns to masonry walls. In its broadest sense, mortar includes pitch, asphalt, and soft mud or clay, as those used between mud bricks, as well as cement mortar. The word "mortar" comes from Old French ''mortier'', "builder's mortar, plaster; bowl for mixing." (13c.). Cement mortar becomes hard when it cures, resulting in a rigid aggregate structure; however, the mortar functions as a weaker component than the building blocks and serves as the sacrificial element in the masonry, because mortar is easier and less expensive to repair than the building blocks. Bricklayers typically make mortars using a mixture of sand, a binder, and water. The most common binder since the early 20th century is Portland cement, but the ancient binder lim ...
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Mortar And Pestle
Mortar and pestle is a set of two simple tools used from the Stone Age to the present day to prepare ingredients or substances by crushing and grinding them into a fine paste or powder in the kitchen, laboratory, and pharmacy. The ''mortar'' () is characteristically a bowl, typically made of hard wood, metal, ceramic, or hard stone such as granite. The ''pestle'' (, also ) is a blunt, club-shaped object. The substance to be ground, which may be wet or dry, is placed in the mortar where the pestle is pounded, pressed, and rotated into the substance until the desired texture is achieved. Mortars and pestles have been used in cooking since prehistory; today they are typically associated with the profession of pharmacy due to their historical use in preparing medicines. They are used in chemistry settings for pulverizing small amounts of chemicals; in arts and cosmetics for pulverizing pigments, binders, and other substances; in ceramics for making grog; in masonry and in other typ ...
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Mortar, Bihar
Mortar is a village in the Garhpura block of Begusarai district in the Indian state of Bihar about north of district capital, Begusarai. The 2011 census gives its population as 1,817. It comes under Malipur Panchayat and under post office Malipur. Facilities As of 2009, the water supply is from wells and hand pumps; there is no tap water. Domestic electricity is available. Primary, middle and secondary schooling is provided within the village. The nearest police station is at Garhpura. Mortar Durga Puja Samiti The annual Durga Puja festival is organised by the Mortar Durga Puja Samiti. A mela takes place in the school ground, when an idol of the goddess Durga is made and people gather together to celebrate. Sweets are bought, new clothes are worn, people offer their prayers, and different types of functions are organised, like Kushti. At night, you can enjoy Jagran along with a play by the Mortar Youth Front. See also * Begusarai Begusarai is the industrial and ...
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Mortar (organization)
MORTAR is a nonprofit organization founded in Cincinnati in 2014. The goal of the organization is to provide resources for entrepreneurs to grow their businesses. Founding MORTAR was founded in 2014, with its first location in the Cincinnati neighborhood of Over-the-Rhine (OTR), which has the highest income inequality of more than 61,000 communities in the US. It was co-founded by Allen Woods, William Thomas, and Derrick Braziel, all of whom are African-American. While Over-the-Rhine was gaining economic vitality, the three co-founders noted that many poor and black residents of OTR were being "left behind". Thomas said, "We saw a lot of white-owned businesses pop up and saw a lot of residents who looked like us without the opportunities." The name "MORTAR" refers to the founders' prioritization of neighborhood development, saying that there is too much emphasis on the "bricks" that create the buildings but that "people are the mortar that holds communities together". By 2018, it ha ...
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Mortar Methods
In numerical analysis, mortar methods are discretization methods for partial differential equations, which use separate finite element discretization on nonoverlapping subdomains. The meshes on the subdomains do not match on the interface, and the equality of the solution is enforced by Lagrange multipliers, judiciously chosen to preserve the accuracy of the solution.Y. Maday, C. Mavriplis, and A. T. Patera, ''Nonconforming mortar element methods: application to spectral discretizations'', in Domain decomposition methods (Los Angeles, CA, 1988), SIAM, Philadelphia, PA, 1989, pp. 392--418. B. I. Wohlmuth, ''A mortar finite element method using dual spaces for the Lagrange multiplier'', SIAM J. Numer. Anal., 38 (2000), pp. 989--1012. Mortar discretizations lend themselves naturally to the solution by iterative domain decomposition methods such as FETI and balancing domain decomposition In numerical analysis, the balancing domain decomposition method (BDD) is an iterative method to fi ...
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Mortarboard
The square academic cap, graduate cap, cap, mortarboard (because of its similarity in appearance to the mortarboard used by brickmasons to hold mortar) or Oxford cap is an item of academic dress consisting of a horizontal square board fixed upon a skull-cap, with a tassel attached to the centre. In the UK and the US, it is commonly referred to informally in conjunction with an academic gown as a "cap and gown". It is also sometimes termed a square, trencher, or corner-cap. The adjective academical is also used. The cap, together with the gown and sometimes a hood, now form the customary uniform of a university graduate in many parts of the world, following a British model. Origins The mortarboard may have developed from the biretta, a similar-looking hat worn by Roman Catholic clergy. The biretta itself may have been a development of the Roman ''pileus quadratus'', a type of skullcap with superposed square and tump (meaning small mound). A reinvention of this type of ca ...
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