Tripoint (other)
A tripoint is a geographical point at which the borders of three countries or regions meet. Tripoint may also refer to: * Triple divide, a point where three drainage basins meet * Tri-point screw drive and head * ''Tripoint'' (novel), a 1994 work of science fiction by C. J. Cherryh See also *Trig point *Triple point In thermodynamics, the triple point of a substance is the temperature and pressure at which the three Phase (matter), phases (gas, liquid, and solid) of that substance coexist in thermodynamic equilibrium.. It is that temperature and pressure at ...

Tripoint
A triple border, tripoint, trijunction, triple point, or tri-border area is a geography, geographical point at which the boundaries of three countries or Administrative division, subnational entities meet. There are 175 international tripoints as of 2020. Nearly half are situated in rivers, lakes or seas. On dry land, the exact tripoints may be indicated by markers or pillars, and occasionally by larger monuments. Usually, the more neighbours a country has, the more international tripoints that country has. China with 16 international tripoints and Russia with 11 to 14 lead the list of states by number of international tripoints. Other countries, like Brazil, India, and Algeria, have several international tripoints. Argentina has four international tripoints. South Africa, Pakistan and Nigeria have three international tripoints, Guatemala has two: one with Mexico and Belize, and one with Honduras and El Salvador; while Bangladesh and Mexico have one. Within Europe, landlocked Au ...
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Triple Divide
A triple divide or triple watershed is a point on Earth's surface where three drainage basins meet. A triple divide results from the intersection of two drainage divides. Triple divides range from prominent mountain peaks to minor side peaks, down to simple slope changes on a ridge which are otherwise unremarkable. The elevation of a triple divide can be thousands of meters to barely above sea level. Triple divides are a common hydrographic feature of any terrain that has rivers, streams and/or lakes. Topographic triple divides do not necessarily respect the underground path of water. Thus, depending on the infiltration and the different geological layers, the hydrologic triple divide is often offset from the topographic triple divide. A hydrological apex is a triple divide whose waters flow into three different oceans. Triple Divide Peak in the U.S. state of Montana or, depending on definition, Snow Dome in Canada are the only such places on Earth.Sources disagree on whe ...
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List Of Screw Drives
At a minimum, a screw drive is a set of shaped cavities and protrusions on the screw head that allows torque to be applied to it. Usually, it also involves a mating tool, such as a screwdriver, that is used to turn it. Some of the less-common drives are classified as being "tamper-resistant". Most heads come in a range of sizes, typically distinguished by a number, such as "Phillips #00". Overview Slotted drives Slot Slot screw drives have a single horizontal indentation (the ''slot'') in the fastener head and is driven by a "common blade" or flat-bladed screwdriver. This form was the first type of screw drive to be developed, and, for centuries, it was the simplest and cheapest to make because it can just be sawed or filed. Blunt or damaged tools can easily be re-ground as required in any workshop. It is unique because the slot head is straightforward to manufacture, and because it can be driven by a simple handtool. The ''slotted screw'' is commonly found in existing p ...
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Tripoint (novel)
''Tripoint'' is a science fiction novel by the United States science fiction and fantasy author C. J. Cherryh, first published by Warner Books in September 1994. It is one of Cherryh's Merchanter novels and is set in the author's Alliance-Union universe. Plot summary Twenty years in the past, merchanter ships ''Sprite'' and ''Corinthian'' were docked at Mariner Station. What started out as a friendly sleepover between the inexperienced Marie Hawkins of ''Sprite'' and Austin Bowe of ''Corinthian'' turned into rape, with Marie becoming pregnant. She elected to raise the child, Thomas Bowe-Hawkins, on ''Sprite'', but was consumed with rage. Her brother was the senior captain of ''Sprite''. Tom grew up with an ambivalent mother and was never fully accepted by his family. When Austin later became senior captain of ''Corinthian'', Marie started tracking ''Corinthian's'' movements in order to expose what she suspected was smuggling Smuggling is the illegal transportation of ob ...
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Trig Point
A triangulation station, also known as a trigonometrical point, and sometimes informally as a trig, is a fixed surveying station, used in geodetic surveying and other surveying projects in its vicinity. The station is usually set up by a mapping organisation with known coordinates and elevation published. Numerous stations are installed on summits for purposes of visibility and prominence. A graven metal plate on the top of a pillar may provide a mounting point for a theodolite or reflector, often using some form of kinematic coupling to ensure reproducible positioning. Use Trigonometrical stations form networks of triangulation. Positions of land boundaries, roads, railways, bridges and other infrastructure can be accurately located by the network, a task essential to the construction of modern infrastructure. Apart from the known stations set up by government, some temporary trigonometrical stations are set up near construction sites for monitoring the precision and progr ...
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