Sand is an example of a class of materials called granular matter. Sand is a naturally occurring, finely divided rock, comprising particles or granules ranging in size from 1⁄16 to 2 millimeters. An individual particle in this range size is termed a sand grain. The next smaller size class in geology is silt: particles below 1⁄16 mm down to 1⁄256 mm (0.004 mm) in size. The next larger size class above sand is gravel, with particles ranging up to 6 ...

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• Sand - Uses of sand
• Sand - Hazards of sand

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Definition and meaning of sand:

sand - coarse sediment typically found in areas exposed to currents and wave energy

(Source: US National Oceanic and Atmospheric Administration (NOAA) )

Also see these pages: Oceanography, Oceanography Sitemap, Coral Reef, Environment, Sustainability, Climate Change,

For more dictionary entries, see » Sand Dictionary

Sand is often a principal component of the aggregate used in the preparation of concrete. Sand manufactured at rock crusher plants for use as an aggregate is called mansand. Graded sand is used as an abrasive in sandblasting and is also used in media filters for filtering water. Brick manufacturing plants use Sand as an additive with a mixture of clay and other materials for manufacturing bricks. Sandy soils are ideal for certain crops such as watermelons, peaches, and peanuts and are often preferred for intensive dairy farming because of thei ...

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Sand, Sand - Uses of sand, Sand - Hazards of sand

Read more here: » Sand: Encyclopedia II - Sand - Uses of sand

Coral sand is sand of particles originating in tropical and sub-tropical marine environments from bioerosion of limestone skeletal material of marine organisms. One example of this process is that of parrot fishes which bite off pieces of coral, digest the living tissue, and excrete the inorganic component as silt and sand. However, the term "coral" in coral sand is used loosely in this sense to mean limestone of recent biological origin; corals are not the dominant contributors of sand particles to most such deposits. Rather, ...

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• Coral sand - Environmental issues

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Robert Gerard Sands, commonly known as Bobby Sands (March 9, 1954–May 5, 1981) was a convicted Irish republican who died on hunger strike in Long Kesh prison, Northern Ireland. Bobby Sands was born in Rathcoole, Newtownabbey, Northern Ireland and brought up in Abbots Cross, Newtownabbey. His family moved several times due to the constant intimidation of Catholics by loyalists, although it was not always clear the Sands were Catholics as their last name derived from Bobby's Protestant paternal grandfather. On leaving sc ...

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• Bobby Sands - Commemorations in other countries
• Bobby Sands - Reference

Read more here: » Bobby Sands: Encyclopedia - Bobby Sands

Black sand is a heavy, weakly magnetic, glossy, semi-metallic mixture of usually fine sands, found as part of a placer deposit. Black sands are used by miners and prospectors to indicate the presence of a placer formation. Placer mining activities produce a concentrate that is composed mostly of black sand. Black sand concentrates often contain additional valuables, other than precious metals: rare earth elements, thorium, titanium, tungsten, zirconium and others are often fractionated during igneous magma processes into a common mineral-suite that later b ...

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• Black sand - External link

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Mandala Sand Painting

According to Buddhist scripture, mandalas (geometric designs symbolic of the universe) constructed from sand transmit positive energies to the environment and to the people who view them. They are believed to affect purification and healing. Mandala sand painting was introduced by the Buddha himself and there are many different designs of mandala, each with different lessons to teach.

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Sand tray therapy is a method of psychological or psychoanalytic therapy which is used to assess the mental health and well-being of children and adults by analyzing how they express themselves through the manipulation of objects in small, tabletop sandboxes (sand-trays). It is often used in tandem with other forms of Jungian psychology / therapy. Sand tray participants are asked to create a diorama (a story or miniature world) by arranging toy people, animals, cars, plants, etc. in the sandtray. The therapist evaluates the subject's

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The Athabasca Oil Sands (or "Tar Sands") is a large deposit of tar sands in north-western Canada located mainly in the province of Alberta and, to a much lesser degree Saskatchewan. Oil sand comprises bitumen (petroleum that is predominantly high molecular-weight hydrocarbons), silica sand, clay minerals, and water. Bitumen is recovered from surface-mineable oil sands by variations of the Clark water-based extraction process, which separates aerated bitumen from the other oil sand components in gravity settling vessels. In-situ method ...

Including:

• Athabasca Oil Sands - Estimated size
• Athabasca Oil Sands - Oil sand companies

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Wind, Sand and Stars is a French book by Antoine de Saint-Exupéry published in 1939 in which the famous pilot and philosopher recounts several episodes in his life as a pilot. The book illustrates his view of the world, his opinions of what makes life worth living, and who we are or should be. The original French title is Terre des Hommes ("Earth of Men"). Wind Sand and Stars - Awards. Outside magazine voted it #1 of all time out of a list of 25 adventure/explorer books. ...

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• Wind Sand and Stars - Awards

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The White Sands National Monument is a U.S. National Monument located about 25km (15 miles) southwest of Alamogordo in the state of New Mexico. The area is in the mountain-ringed Tularosa Basin valley area and comprises the southern part of a 710km² (275-square mile) field of white sand dunes composed of gypsum crystals. Gypsum is rarely found in the form of sand because it is water soluble. Normally, rain would dissolve the gypsum and carry it to the sea. Since the Tularosa Basin has no outlet to the sea, rain that dissolves ...

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Aberdour, a village in Fife, Scotland, lies on the shore of the Firth of Forth, 17.5 miles north-west of Edinburgh by the railway and 7 miles north-west of Leith by boat. It features excellent sea-bathing. Aberdour has ruins of a castle and an old decayed church, which contains some fine Norman work. About 3 miles south-west of Aberdour stands Donibristle House, the seat of the Earl of Moray, and the scene of the murder (7 February 1592) of one earl, remembered in the ballad ...

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• Aberdour - Silver and Black Sands
• Aberdour - Inchcolm

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A corer is a device for taking a core sample. It may range in size from a multi-ton rig to be dropped from a ship and able to penetrate hundreds of meters into the sea floor, to instruments as small as a penny designed to sample the rock on another planet. All corers feature a hollow tube. It can be rotated to drill into the medium, hammered or pressed into the medium, dropped from a height, or vibrated to work its way into loose material, such as sand. Drills can be rotated by motor or borers cranked by hand. Corers are designed for a specifi ...

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• Corer - See Also

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The Battle of the Alamo was a 19th Century battle between the Republic of Mexico and the rebel Texan forces during the Texas Revolution. It took place at the Alamo mission in San Antonio, Texas (then known as "San Antonio de Béxar") in February and March of 1836. The 13-day siege ended on March 6 with the capture of the mission and the death of nearly all the Texian defenders, except for a few slaves, women and children. The siege allowed the Tex ...

Including:

• Battle of the Alamo - Prelude to Battle
• Battle of the Alamo - The Alamo defenders
• Battle of the Alamo - The final assault
• Battle of the Alamo - Casualties
• Battle of the Alamo - Texas Independence
• Battle of the Alamo - Controversies of the Alamo
• Battle of the Alamo - The line in the sand
• Battle of the Alamo - Death of David Davy Crockett
• Battle of the Alamo - Flags of the Alamo

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Alamogordo is a city located in Otero County, New Mexico, United States of America. As of the 2000 census, the city had a total population of 35,582. The city name is a Spanish word meaning "fat cottonwood". It is the county seat of Otero County.GR6 Alamogordo New Mexico - Geography. Alamogordo is located at 32°53'45" North, 105°57'8" West (32.895940, -105.952134)GR1. According to the United States Census Bureau, the city has a total area of 5 ...

Including:

• Alamogordo New Mexico - Geography
• Alamogordo New Mexico - Demographics
• Alamogordo New Mexico - Atari Burial Grounds
• Alamogordo New Mexico - Grave of Ham First Chimp in Space
• Alamogordo New Mexico - Trinity
• Alamogordo New Mexico - White Sands National Monument
• Alamogordo New Mexico - Book Burnings

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11 recognised; see text. Boas are a type of snake that are members of the Boidae family. Boas are basal snakes that are "primitive" in evolutionary terms (i.e. less derived). They are constrictors and give birth to live young. They have anal spurs, a pair of claws on each side of the cloaca which are vestiges of legs. Boas are named after cows (bos) because of the old myth that boa snakes pursue cows and su ...

Including:

• Boa - Boinae
• Boa - Erycinae

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Carcharias Carcharias taurus Rafinesque, 1810 (Grey Nurse Shark or Sand tiger shark) [1] Carcharias tricuspidatus Day, 1878 (Indian sand tiger) [2] Odontaspis Odontaspis ferox (Risso, 1810) (Smalltooth sand tiger or bumpytail raggedtooth) [3] Odontaspis noronhai (Maul, 1955)< ...

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Sand shark, Sand shark - Anatomy, Sand shark - Reproduction, Sand shark - Species

Read more here: » Sand shark: Encyclopedia II - Sand shark - Species

sand taken from between the paws of the Great Sphinx in Egypt,
used to make spells and charms permanent

(See also: Sands of Time, Magic, Shamanism, Pagan Dictionary)

To produce cavities within the casting—such as for liquid cooling in engine blocks and cylinder heads—negative forms are used to produce cores. Usually sand-molded, cores are inserted into the casting box after removal of the pattern. Whenever possible, designs are made that avoid the use of cores, due to the additional set-up time and thus greater cost. With a completed mold at the appropriate moisture content, the box containing the sand mold is then positioned for filling with molten metal—typically iron, steel, bronze ...

See also:

Sand casting, Sand casting - Patterns, Sand casting - Molding box and materials, Sand casting - Chills, Sand casting - Cores, Sand casting - Design requirements, Sand casting - Decorative use of patterns, Sand casting - Alternative casting methods

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Some ethnic Bosniak politicians from the Sandžak region advocating territorial autonomy for Sandžak. The most radical of the autonomy proposals advocate that Sandžak region should become one of the republics of Serbia and Montenegro. This new republic would be created from both: Serbian and Montenegrin part of Sandžak. Since the ethnic Bosniaks form majority only in five eastern municipalities of Sandžak, and since Serb and Montenegrin population from this ethnically mixed region opposing to this idea, it is not likely that eventual autonomous Sandžak would include municipalities with ...

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Sandžak, Sandžak - Demographics, Sandžak - History, Sandžak - Politics

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