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Coign Of Vantage
Coign is an older spelling of Quoin, and may refer to: * Coign (architecture), masonry blocks at the corner of a wall * Coign (gunnery), a wedge used in aiming a cannon * Coign (printing), wooden or metal wedges used for locking printing type into a chase * A coign, in Crystallography, is the point at which three facets of a crystal meet * A coign, in Geology, is an angular plate around which a continent has formed See also * Coign of vantage Coign is an older spelling of Quoin, and may refer to: * Coign (architecture), masonry blocks at the corner of a wall * Coign (gunnery), a wedge used in aiming a cannon * Coign (printing), wooden or metal wedges used for locking printing type ..., an elevated observation point * Coign and livery, military exactions in Gaelic Ireland {{Dab ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Quoin
Quoins ( or ) are masonry blocks at the corner of a wall. Some are structural, providing strength for a wall made with inferior stone or rubble, while others merely add aesthetic detail to a corner. According to one 19th century encyclopedia, these imply strength, permanence, and expense, all reinforcing the onlooker's sense of a structure's presence. Stone quoins are used on stone or brick buildings. Brick quoins may appear on brick buildings, extending from the facing brickwork in such a way as to give the appearance of generally uniformly cut ashlar blocks of stone larger than the bricks. Where quoins are decorative and non-load-bearing a wider variety of materials is used, including timber, stucco, or other cement render. Techniques Ashlar blocks In a traditional, often decorative use, large rectangular ashlar stone blocks or replicas are laid horizontally at the corners. This results in an alternate, quoining pattern. Alternate cornerstones Courses of large and small c ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Coign (architecture)
Quoins ( or ) are masonry blocks at the corner of a wall. Some are structural, providing strength for a wall made with inferior stone or rubble, while others merely add aesthetic detail to a corner. According to one 19th century encyclopedia, these imply strength, permanence, and expense, all reinforcing the onlooker's sense of a structure's presence. Stone quoins are used on stone or brick buildings. Brick quoins may appear on brick buildings, extending from the facing brickwork in such a way as to give the appearance of generally uniformly cut ashlar blocks of stone larger than the bricks. Where quoins are decorative and non-load-bearing a wider variety of materials is used, including timber, stucco, or other cement render. Techniques Ashlar blocks In a traditional, often decorative use, large rectangular ashlar Ashlar () is finely dressed (cut, worked) stone, either an individual stone that has been worked until squared, or a structure built from such stones. A ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Coign (gunnery)
Cannon operation required specialised crew and gunners, who were first enlisted by the Spanish in the 14th century.Hoffmeyer, p. 217. The nature of cannon operation often depended on the size of the cannon and whether they were breech-loading or muzzle-loading. English cannons of the late 14th century became mobile, while the largest cannon (such as the heavy siege cannon of the Ottoman Turks or the Jaivana cannon of India) required huge crews to transport and operate them. As the "giant gun" trend disappeared in Europe, in favour of lighter, more manoeuvrable pieces in larger numbers, cannon operating crews became smaller, heralding the early use of true field artillery. While the medieval Dardanelles Gun had required 200 men just to operate it, an 18th-century English cannon required only a dozen men, including two gunners, while during the Napoleonic Wars five gunners were used.Holmes, ''Redcoat British Soldier in the age of Horse and Musket'' Overview Cannon operation is ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Coign (printing)
A quoin is a device used to lock printing type in a chase Chase or CHASE may refer to: Businesses * Chase Bank, a national bank based in New York City, New York * Chase Aircraft (1943–1954), a defunct American aircraft manufacturing company * Chase Coaches, a defunct bus operator in England * Chase Co ... in letterpress printing. Quoins are pairs of wedges, facing opposite directions. A wrench or quoin key forces them together. References Letterpress printing Relief printing {{Typ-stub ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Crystallography
Crystallography is the experimental science of determining the arrangement of atoms in crystalline solids. Crystallography is a fundamental subject in the fields of materials science and solid-state physics (condensed matter physics). The word "crystallography" is derived from the Greek word κρύσταλλος (''krystallos'') "clear ice, rock-crystal", with its meaning extending to all solids with some degree of transparency, and γράφειν (''graphein'') "to write". In July 2012, the United Nations recognised the importance of the science of crystallography by proclaiming that 2014 would be the International Year of Crystallography. denote a direction vector (in real space). * Coordinates in ''angle brackets'' or ''chevrons'' such as <100> denote a ''family'' of directions which are related by symmetry operations. In the cubic crystal system for example, would mean 00 10 01/nowiki> or the negative of any of those directions. * Miller indices in ''parentheses'' ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Geology
Geology () is a branch of natural science concerned with Earth and other astronomical objects, the features or rocks of which it is composed, and the processes by which they change over time. Modern geology significantly overlaps all other Earth sciences, including hydrology, and so is treated as one major aspect of integrated Earth system science and planetary science. Geology describes the structure of the Earth on and beneath its surface, and the processes that have shaped that structure. It also provides tools to determine the relative and absolute ages of rocks found in a given location, and also to describe the histories of those rocks. By combining these tools, geologists are able to chronicle the geological history of the Earth as a whole, and also to demonstrate the age of the Earth. Geology provides the primary evidence for plate tectonics, the evolutionary history of life, and the Earth's past climates. Geologists broadly study the properties and processes of E ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
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