query: what is the primary force that generates ridge push

pos: Ridge push Ridge push Ridge push or sliding plate force is a proposed driving force for plate motion in plate tectonics that occurs at mid-ocean ridges as the result of the rigid lithosphere sliding down the hot, raised asthenosphere below mid-ocean ridges. Although it is called ridge push, the term is somewhat misleading; it is actually a body force that acts throughout an ocean plate, not just at the ridge, as a result of gravitational pull. The name comes from earlier models of plate tectonics in which ridge push was primarily ascribed to upwelling magma at mid-ocean ridges pushing or wedging the

pos: Ridge push Ridge push Ridge push or sliding plate force is a proposed driving force for plate motion in plate tectonics that occurs at mid-ocean ridges as the result of the rigid lithosphere sliding down the hot, raised asthenosphere below mid-ocean ridges. Although it is called ridge push, the term is somewhat misleading; it is actually a body force that acts throughout an ocean plate, not just at the ridge, as a result of gravitational pull. The name comes from earlier models of plate tectonics in which ridge push was primarily ascribed to upwelling magma at mid-ocean ridges pushing or wedging the

pos: Ridge push flat slab subduction, one of the few places in the world where this currently occurs. Ridge push Ridge push or sliding plate force is a proposed driving force for plate motion in plate tectonics that occurs at mid-ocean ridges as the result of the rigid lithosphere sliding down the hot, raised asthenosphere below mid-ocean ridges. Although it is called ridge push, the term is somewhat misleading; it is actually a body force that acts throughout an ocean plate, not just at the ridge, as a result of gravitational pull. The name comes from earlier models of plate tectonics in which

neg: Ridge push of slab pull are mostly negated by resisting forces in the mantle, limiting it to only 2-3 times the effective strength of ridge push forces in most plates, and that mantle convection is probably much too slow for drag between the lithosphere and the asthenosphere to account for the observed motion of the plates. This restores ridge push as one of the dominant factors in plate motion. Ridge push is primarily opposed by plate drag, which is the drag force of the rigid lithosphere moving over the weaker, ductile asthenosphere. Models estimate that ridge push is probably just sufficient to

neg: Ridge push overcome plate drag and maintain the motion of the plate in most areas. Slab pull is similarly opposed by resistance to the subduction of the lithosphere into the mantle at convergent plate boundaries. Research by Rezene Mahatsente indicates that the driving stresses caused by ridge push would be dissipated by faulting and earthquakes in plate material containing large quantities of unbound water, but they conclude that ridge push is still a significant driving force in existing plates because of the rarity of intraplate earthquakes in the ocean. In plates with particularly small or young subducting slabs, ridge push may be

neg: Ridge push the predominant driving force in the plate's motion. According to Stefanick and Jurdy, the ridge push force acting on the South American plate is approximately 5 times the slab pull forces acting at its subducting margins because of the small size of the subducting slabs at the Scotia and Caribean margins. The Nazca plate also experiences relatively small slab pull, approximately equal to its ridge push, because the plate material is young (no more than 50 million years old) and therefore less dense, with less tendency to sink into the mantle. This also causes the subducting Nazca slab to experience

neg: Ridge push normal force from the underlying rock, but the remainder acts to push the lithosphere down the sloping asthenosphere and away from the ridge. Because the asthenosphere is weak, ridge push and other driving forces are enough to deform it and allow the lithosphere to slide over it, opposed by drag at the Lithosphere-Asthenosphere boundary and resistance to subduction at convergent plate boundaries. Ridge push is mostly active in lithosphere younger than 90 Ma, after which it has cooled enough to reach thermal equilibrium with older material and the slope of the Lithosphere-Asthenosphere boundary becomes effectively zero. Despite its current status

neg: Ridge push zones were primarily the result of convection currents in the mantle dragging on the crust and supplying fresh, hot magma at mid-ocean ridges. Further developments of the theory suggested that some form of ridge push helped supplement convection in order to keep the plates moving, but in the 1990s, calculations indicated that slab pull, the force that a subducted section of plate exerts on the attached crust on the surface, was an order of magnitude stronger than ridge push. As of 1996, slab pull was generally considered the dominant mechanism driving plate tectonics. Modern research, however, indicates that the effects

neg: Force concentration flank and thus being able to destroy the enemy in detail. Thus, concentrating two divisions and attacking at a single point generates a far greater force than is achieved by spreading two divisions into a line and pushing forward on a broad front. Concentration of force in this scenario requires mobility (to permit rapid concentration) and power (to be effective in combat once concentrated). The tank embodies these two properties and for the past seventy years has been seen as the primary weapon of conventional warfare. No one side has a monopoly on military art, and what is obvious to

neg: Ridge push models were proposed by Lliboutry in 1969, Parsons and Richer in 1980, and others. In 1969, Hales proposed a model in which the raised lithosphere of the mid-ocean ridges slid down the elevated ridge, and in 1970 Jacoby proposed that the less dense material and isostasy of Orowan and others' proposals produced uplift which resulted in sliding similar to Hales' proposal. The term "ridge push force" was coined by Forsyth and Uyeda in 1975. Early models of plate tectonics, such as Harry Hess's seafloor spreading model, assumed that the motions of plates and the activity of mid-ocean ridges and subduction

neg: Ridge push as one of the driving forces of plate tectonics, ridge push was not included in any of Alfred Wegener's 1912-1930 proposals of continental drift, which were produced before the discovery of mid-ocean ridges and lacked any concrete mechanisms by which the process might have occurred. Even after the development of acoustic depth sounding and the discovery of global mid-ocean ridges in the 1930s, the idea of a spreading force acting at the ridges was not mentioned in scientific literature until Harry Hess's proposal of seafloor spreading in 1960, which included a pushing force at mid-ocean ridges as a result of

neg: Royer oscillator a center-tapped primary winding, a feedback winding and (optionally) a secondary winding. The two halves of the primary are driven by two transistors in push-pull configuration. The feedback winding couples a small amount of the transformer flux back in to the transistor bases to provide positive feedback, generating oscillation. The oscillation frequency is determined by the maximum magnetic flux density, the power supply voltage, and the inductance of the primary winding. The basic Royer generates square wave output. The need to use a saturable-core limits the choice of core material. Some common materials are: A drawback of the voltage mode

neg: Slab pull Slab pull Slab pull is that part of the motion of a tectonic plate that is caused by its subduction. Plate motion is partly driven by the weight of cold, dense plates sinking into the mantle at oceanic trenches. This force and slab suction account for almost all of the force driving plate tectonics. The ridge push at rifts contributes only 5 to 10%. Carlson et al. (1983) in Lallemandet al. (2005) defines the slab pull force as: Where: The slab pull force manifests itself between two extreme forms: Between these two examples there is the evolution of the Farallon

neg: Snake terrestrial locomotion for most snake species. In this mode, the posteriorly moving waves push against contact points in the environment, such as rocks, twigs, irregularities in the soil, etc. Each of these environmental objects, in turn, generates a reaction force directed forward and towards the midline of the snake, resulting in forward thrust while the lateral components cancel out. The speed of this movement depends upon the density of push-points in the environment, with a medium density of about 8 along the snake's length being ideal. The wave speed is precisely the same as the snake speed, and as a

neg: Tension (geology) plates apart is due to ridge push force of the magma chamber. Tension, however, accounts for most of the "opposite directions" pull on the plates. As the separating oceanic crust cools over time, it becomes more dense and sinks farther and farther away from the ridge axis. The cooling and sinking ocean crust causes a tensile stress that also helps drive the pulling apart of the plates at the ridge axis. Tension (geology) In geology, the term "tension" refers to a stress which stretches rocks in two opposite directions. The rocks become longer in a lateral direction and thinner in

neg: Plate tectonics significantly denser than the hot mantle material from which it is derived and so with increasing thickness it gradually subsides into the mantle to compensate the greater load. The result is a slight lateral incline with increased distance from the ridge axis. This force is regarded as a secondary force and is often referred to as "ridge push". This is a misnomer as nothing is "pushing" horizontally and tensional features are dominant along ridges. It is more accurate to refer to this mechanism as gravitational sliding as variable topography across the totality of the plate can vary considerably and the

neg: Cosmic wind hole. Because new stars and planets form from gases, the cosmic winds that push the gases away are preventing new stars from forming. Cosmic wind Cosmic wind is a powerful cosmic force that can push interstellar dust clouds of low density into intergalactic space. Although it easily pushes low density gas and dust clouds, it can not easily push high density clouds. As the cosmic winds start to push the clouds, they start to separate and start looking like taffy being pulled apart. It has a primary composition of photons ejected from large stars and sometimes thermal energy from exploding

neg: Push moraine during the last (110,000 to 10,000 years ago) or second-last (238,000 to 128,000 years ago) glacial advances. Today push moraines can be found anywhere an advancing glacier is pushing sediment into a ridge at the terminus. Examples can be found in Alaska. Push moraine A push moraine or pushed moraine is in geomorphology a moraine (a landform formed by glacial processes) that forms when the terminus advance of a lowland glacier pushes unstratified glacial sediment into a pile or linear ridge in front of it. A push moraine is identified by its ability to push sediment upwards from its original

neg: Push moraine Push moraine A push moraine or pushed moraine is in geomorphology a moraine (a landform formed by glacial processes) that forms when the terminus advance of a lowland glacier pushes unstratified glacial sediment into a pile or linear ridge in front of it. A push moraine is identified by its ability to push sediment upwards from its original horizontal position. Push moraines are limited in size by the advance of a glacier front and its tendency to shear over the top of any ridge large enough to resist the movement of ice. Pushed moraines generally occur in low, flat plains

neg: Dynamic topography are frequently on the order of a few hundred meters to a couple of kilometers. Large scale surface features due to dynamic topography are mid-ocean ridges and oceanic trenches. Other prominent examples include areas overlying mantle plumes such as the African superswell. The mid-ocean ridges are high due to dynamic topography because the upwelling hot material underneath them pushes them up above the surrounding seafloor. This provides an important driving force in plate tectonics called ridge push: the increased gravitational potential energy of the mid-ocean ridge due to its dynamic uplift causes it to extend and push the surrounding lithosphere

neg: Electromagnetic propulsion primary coil assembly and reaction plate alternate, which generates force and direct linear motion. There are multiple applications for EMP technologies in the field of aerospace. Many of these applications are conceptual as of now, however, there are also several applications that range from near term to next century. One of such applications is the use of EMP to control fine adjustments of orbiting satellites. One of these particular systems is based on the direct interactions of the vehicle's own electromagnetic field and the magnetic field of the Earth. The thrust force may be thought of as an electrodynamic force

neg: Ridge push and contract with age until reaching equilibrium with older crust at around 90 Ma. This produces an isostatic response that causes the young regions nearest the plate boundary to rise above older regions and gradually sink with age, producing the mid-ocean ridge morphology. The greater heat at the ridge also weakens rock closer to the surface, raising the boundary between the brittle lithosphere and the weaker, ductile asthenosphere to create a similar elevated and sloped feature underneath the ridge. These raised features produce ridge push; gravity pulling down on the lithosphere at the mid-ocean ridge is mostly opposed by the

neg: Cosmic wind Cosmic wind Cosmic wind is a powerful cosmic force that can push interstellar dust clouds of low density into intergalactic space. Although it easily pushes low density gas and dust clouds, it can not easily push high density clouds. As the cosmic winds start to push the clouds, they start to separate and start looking like taffy being pulled apart. It has a primary composition of photons ejected from large stars and sometimes thermal energy from exploding stars. It can be caused by orbital motion of gas in the cluster of a galaxy, or can be ejected from a black

neg: Andrew Irvine (mountaineer) of the next day, the pair had established a final two-man camp at , from which to make their final push on the summit. It is not known what time they departed on 8 June, but there is circumstantial evidence to suggest that they did not have the smooth early start that Mallory had hoped for. Noel Odell, who was acting in a supporting role, reported seeing them at 12:50 pm – much later than expected – ascending what he believed was the Second Step of the northeast ridge and "going strongly for the top", although in the years that

neg: Bifilar coil coil no longer has a voltage applied across it by the switching transistor, the stray magnetic flux generates a current in the clamping coil with the primary side voltage appearing across it, causing an equal voltage to appear across the primary winding. If this clamping coil was not used, the stray magnetic flux would attempt to force a current to flow through the primary wire. Since the primary wire is switched off and the switching transistor is in a high resistance state, the high voltage which would appear on the semiconductor switching transistor would exceed its electrical breakdown or even

neg: Battle of Missionary Ridge James L. McDonough wrote of the upper entrenchments, "Placed along the physical crest rather than what is termed the military crest ... these works severely handicapped the defenders." November 24 was dark, with low clouds, fog, and drizzling rain. Sherman's force crossed the Tennessee River successfully in the morning then took the set of hills at the north end of Missionary Ridge, although he was surprised to find that a valley separated him from the main part of the ridge. Alerted by Grigsby's cavalry that the enemy had crossed the river in force, Bragg sent Cleburne's division and Wright's brigade

neg: Mark Hudson (musician) has since co-written a total of 12 Aerosmith songs. He co-produced their 2001 album "Just Push Play", co-writing six of the album's twelve songs. Hudson, along with Steven Tyler, Joe Perry and Marti Frederiksen, make up what has become known as the "Boneyard Boys", the informal collective of songwriters, musicians and producers responsible for Aerosmith's creative process. For ten years starting in 1998, Hudson was the primary driving force as producer and composer behind Ringo Starr's continued career as a recording artist. In that endeavor, Hudson produced or co-produced nine albums for Starr. There were five critically acclaimed studio albums:

neg: Cemetery Ridge Cemetery Ridge Cemetery Ridge is a geographic feature in Gettysburg National Military Park, south of the town of Gettysburg, Pennsylvania, that figured prominently in the Battle of Gettysburg, July 1 to July 3, 1863. It formed a primary defensive position for the Union Army during the battle, roughly the center of what is popularly known as the "fish-hook" line. The Confederate army launched attacks on the Union positions on the second and third days of the battle, but were driven back both times. The ridge rises only about 40 feet (12 m) above the surrounding terrain and is under 2

neg: West Rock Ridge plants uncommon in eastern Connecticut. Because the ridge generates such varied terrain, it is the home of several plant and animal species that are state-listed or globally rare. West Rock Ridge is also an important seasonal raptor migration path. West Rock Ridge is an outdoor recreation resource popular among residents and visitors of the metropolitan New Haven region. Views from the clifftops span New Haven, the rural landscape to the west as far as the Berkshires, Long Island Sound, and Long Island. Most of the ridge is within the public domain as state and town park land, conservation easement, and

neg: Centripetal force force can also be supplied as a 'push' force, such as in the case where the normal reaction of a wall supplies the centripetal force for a wall of death rider. Newton's idea of a centripetal force corresponds to what is nowadays referred to as a central force. When a satellite is in orbit around a planet, gravity is considered to be a centripetal force even though in the case of eccentric orbits, the gravitational force is directed towards the focus, and not towards the instantaneous center of curvature. Another example of centripetal force arises in the helix that is

neg: Battle of The Pimple Markham and Ramu Valleys towards the Finisterre Ranges. In October, the 21st Infantry Brigade began a tentative push towards the foothills surrounding Shaggy Ridge, and in the middle of the month fought a sharp defensive action around John's Knoll and Trevor's Ridge after the Japanese counter-attacked an Australian force that had cut the main Japanese line of supply. Shortly after the fighting around John's Knoll, the 25th Infantry Brigade had relieved the 21st and had begun patrolling the area, while aerial reconnaissance attempted to locate the Japanese artillery, which was engaged by the guns of the 2/4th Field Regiment. Throughout

neg: Ridge push plates apart. Ridge push is the result of gravitational forces acting on the young, raised oceanic lithosphere around mid-ocean ridges, causing it to slide down the similarly raised but weaker asthenosphere and push on lithospheric material farther from the ridges. Mid-ocean ridges are long underwater mountain chains that occur at divergent plate boundaries in the ocean, where new oceanic crust is formed by upwelling mantle material as a result of tectonic plate spreading and relatively shallow (above ~60 km) decompression melting. The upwelling mantle and fresh crust are hotter and less dense than the surrounding crust and mantle, but cool

neg: Mid-ocean ridge responsible for the spreading seen at mid-ocean ridges, and there is some uncertainty as to which is dominant. Ridge-push occurs when the growing bulk of the ridge pushes the rest of the tectonic plate away from the ridge, often towards a subduction zone. At the subduction zone, "slab-pull" comes into effect. This is simply the weight of the tectonic plate being subducted (pulled) below the overlying plate dragging the rest of the plate along behind it. The slab pull mechanism is considered to be contributing more than the ridge push. The other process proposed to contribute to the formation of

neg: Microtunneling to produce these forces. In most cases the entrance must be modified to support this frame and the forces it generates. In addition to the jacking frame, smaller jacks, called “interjacks”, may be inserted between sections of tunnel liner. These push the two sections of liner apart. Friction on the liner sections between the interjack and the tunnel entrance helps to prevent the liner from sliding out backwards. So while the liner behind the interjack does not move, those sections in front of it receive additional pushing force. Microtunneling As the name implies, microtunneling or microtunnelling is a digging technique

neg: James M. Gavin threat to the still tenuous 45th Division beachhead. For some inexplicable reason, the Germans failed to act aggressively against Gavin's outgunned and outmatched force. Even so, that afternoon, a panzer force attacked Biazza Ridge. Gavin made clear to his men, "We're staying on this goddamned ridge – no matter what happens." The defenders of Biazza Ridge managed to capture two 75-mm pack howitzers, which they turned into direct fire weapons to defend the ridge. One managed to knock out one of the attacking Tiger tanks. By early evening, the situation had turned grim when six American M4 Sherman tanks suddenly

neg: Invasion of Guadeloupe (1810) of successful invasions during 1809, until Guadeloupe was the only French colony remaining. A British expeditionary force landed on 28 January 1810, and found that much of the island's militia garrison had deserted. Advancing from two landing beaches on opposite sides of the island, they were able to rapidly push inland. It was not until they reached Beaupère–St. Louis Ridge outside the capital Basse-Terre that the expeditionary force faced strong opposition, but in a battle lasting for most of 3 February, the French were defeated and driven back. The island's commander, Jean Augustin Ernouf, began surrender negotiations the following day.

neg: Wally West skilled science prodigy. In some versions, like Young Justice, Wally uses these skills to recreate the accident that gave Barry his powers by himself, granting himself his own powers. Like his mentor, Wally understands what his speed enables him to do, and uses his knowledge of physics to his advantage in battle. After his return to the DC Universe, Wally is said to be even faster than before. Titans (2016) #5 issue, established that the Speed Force is inside Wally more than ever before. He now generates white lightning, which combines all the colors of the Speed Force. He also

neg: Push (professional wrestling) the fans generate the push for a wrestler themselves when their approval for the wrestler's work generates a positive reaction from them that is not anticipated. A push can also be attributed to a political shift in the promotion's offices. Cowboy Bill Watts, whose promotions always consisted of an African-American main event heroic character, began pushing Ron Simmons, a midcarder, to main event status and eventually to the WCW World Heavyweight Championship upon being put in charge of World Championship Wrestling (WCW). In WWE, following the fallout from the Signature Pharmacy Scandal, smaller and less muscular wrestlers such as CM

neg: Geology of the Iberian Peninsula km thick. Alboran lithosphere is 40 km thick. The Tajo and Duero basins are elevated and yet show a negative Bouguer anomaly. This is likely due to a less dense crust. In the Ossa Moena zone and South Portuguese Zone there is a positive Bouguer anomaly, due to higher crustal density. Along the Mediterranean coast there is a positive Bouguer anomaly due to lithosphere thinned to less than 75 km. The force exerted by the ridge push from the Atlantic sea floor is 3.0 TN/m (10 newtons per meter); 54 Ma the force was lower at 2 TN/m. GPS stations

neg: Blue Ridge School District for special education programs is borne largely on a local basis at 60%, with the state contributing $1 billion or 30% and the federal government providing 10% of the funding. The District Administration reported that 19 or 1.66% of its students were gifted in 2009. By law, the district must provide mentally gifted programs at all grade levels. The primary emphasis is on enrichment and acceleration of the regular education curriculum through a push in model with the gifted instructor in the classroom with the regular instructor. This approach permits such specialized instructional strategies as tiered assignments, curriculum compacting, flexible

neg: Cemetery Ridge American Civil War used the ridge's west slope at the Angle (e.g., for Eisenhower's 1918 Camp Colt and during the 1938 Gettysburg reunion). The 1962 Cyclorama Building at Gettysburg with observation deck replaced the 1896 observation tower at the ridge's Zeigler's Woods, but was closed in 2008. Cemetery Ridge Cemetery Ridge is a geographic feature in Gettysburg National Military Park, south of the town of Gettysburg, Pennsylvania, that figured prominently in the Battle of Gettysburg, July 1 to July 3, 1863. It formed a primary defensive position for the Union Army during the battle, roughly the center of what is

neg: Escapement wheel" gear, allowing the clock's gear train to advance or "escape" by a fixed amount. This regular periodic advancement moves the clock's hands forward at a steady rate. At the same time the tooth gives the timekeeping element a push, before another tooth catches on the escapement's pallet, returning the escapement to its "locked" state. The sudden stopping of the escapement's tooth is what generates the characteristic "ticking" sound heard in operating mechanical clocks and watches. Escapements are used elsewhere as well. Manual typewriters used escapements to step the carriage as each letter (or space) was typed. Historically, a liquid-driven

neg: Juan de Fuca Ridge Juan de Fuca Ridge The Juan de Fuca Ridge is a mid-ocean spreading center and divergent plate boundary located off the coast of the Pacific Northwest region of North America. The ridge separates the Pacific Plate to the west and the Juan de Fuca Plate to the east. It runs generally northward, with a length of approximately 500 kilometers (300 miles). The ridge is a section of what remains from the larger Pacific-Farallon Ridge which used to be the primary spreading center of this region, driving the Farallon Plate underneath the North American Plate through the process of plate tectonics.

neg: Actin assembly-inducing protein surface of the bacterium. Expression of ActA is induced only after entering a mammalian host cell. Actin filament assembly generates the force that pushes the bacterium in the mammalian host cytoplasm forward. Continuous actin polymerization is sufficient for motility in the cytoplasm and even for infection of adjacent cells. New data indicates that ActA plays a role also in vacuolar disruption. A deletion mutant of ActA was defective in permeabilizing the vacuole. An 11 amino acid stretch of the N-terminus of the acidic region (32-42) was shown to be important for disruption of the phagosome. The primary proteinous product of

neg: Motivation its push and pull effects. One thing that is mentioned is "Regret and dissatisfaction correspond to push factors because regret and dissatisfaction are the negative factors that compel users to leave their current service provider." So from reading this, we now know that Push motivations can also be a negative force. In this case, that negative force is regret and dissatisfaction. Pull motivation is the opposite of push. It is a type of motivation that is much stronger. "Some of the factors are those that emerge as a result of the attractiveness of a destination as it is perceived by

neg: Available-to-promise Available-to-promise Available-to-promise (ATP) is a business function that provides a response to customer order enquiries, based on resource availability. It generates available quantities of the requested product, and delivery due dates. Therefore, ATP supports order promising and fulfillment, aiming to manage demand and match it to production plans. Available-to-promise functions are IT-enabled and usually integrated in enterprise management software packages. However, ATP execution may need to be adjusted for the way a certain company operates. A fundamental distinction between ATP functions is based on the push-pull strategy. Push-based ATP is based on forecasts regarding future demand - based on anticipation

neg: Push-button telephone the push-button pad have higher-frequency tones, and rows have lower-frequency tones in the audible range. When a button is pressed the dial generates a combination signal of the two frequencies for the selected row and column, a dual-tone signal, which is transmitted over the phone line to the telephone exchange. When announced, the DTMF technology was not immediately available on all switching systems. The circuits of subscribers requesting the feature often had to be moved from older switches that supported only pulse dialing to a newer crossbar, or later an electronic switching system, requiring the assignment of a new telephone

neg: Taxicab Taxi Butler and the Taxi Button. This new approach has created a shortcut to getting a Taxi for consumers, with the push of a button. The push generates an order in the dispatch system and sends out a car to the location of the button push. Other areas may have a mix of the two systems, where drivers may respond to radio calls and also pick up street fares. E-hailing is a system whereby passengers hire the taxi using mobile devices. While not directly involving the call center, the taxis are still monitored by the dispatcher through GPS tracking. It

neg: Theory of art of value. In chapter fifteen of "What Is Art?", Tolstoy says that some feelings are good, but others are bad, and so art is only valuable when it generates empathy or shared feeling for good feelings. For example, Tolstoy asserts that empathy for decadent members of the ruling class makes society worse, rather than better. In chapter sixteen, he asserts that the best art is "universal art" that expresses simple and accessible positive feeling. An argument for the value of art, used in the fictional work "The Hitchhikers Guide to the Galaxy", proceeds that, if some external force presenting imminent

neg: Gear of the gear. In either arrangement, the total (or "net") axial force on each gear is zero when the gears are aligned correctly. If the gears become misaligned in the axial direction, the unstable arrangement generates a net force that may lead to disassembly of the gear train, while the stable arrangement generates a net corrective force. If the direction of rotation is reversed, the direction of the axial thrusts is also reversed, so a stable configuration becomes unstable, and conversely. Stable double helical gears can be directly interchanged with spur gears without any need for different bearings. A bevel

neg: Electrodynamic suspension move forward. The propulsion coils that exert a force on the train are effectively a linear motor: an alternating current flowing through the coils generates a continuously varying magnetic field that moves forward along the track. The frequency of the alternating current is synchronized to match the speed of the train. The offset between the field exerted by magnets on the train and the applied field creates a force moving the train forward. When a conductive loop experiences a changing magnetic field, from Lenz's law and Faraday's law, the changing magnetic field generates an Electromotive Force (EMF) around the circuit.

neg: Force direct observations and compared to a standard measurement scale. Through experimentation, it is determined that laboratory measurements of forces are fully consistent with the conceptual definition of force offered by Newtonian mechanics. Forces act in a particular direction and have sizes dependent upon how strong the push or pull is. Because of these characteristics, forces are classified as "vector quantities". This means that forces follow a different set of mathematical rules than physical quantities that do not have direction (denoted scalar quantities). For example, when determining what happens when two forces act on the same object, it is necessary to

neg: Electron as zitterbewegung), which results in a net circular motion with precession. This motion produces both the spin and the magnetic moment of the electron. In atoms, this creation of virtual photons explains the Lamb shift observed in spectral lines. An electron generates an electric field that exerts an attractive force on a particle with a positive charge, such as the proton, and a repulsive force on a particle with a negative charge. The strength of this force in nonrelativistic approximation is determined by Coulomb's inverse square law. When an electron is in motion, it generates a magnetic field. The Ampère-Maxwell

neg: Mid-ocean ridge the oceanic plates cool, away from the ridge axes, the oceanic mantle lithosphere (the colder, denser part of the mantle that, together with the crust, comprises the oceanic plates) thickens and the density increases. Thus older seafloor is underlain by denser material and is deeper. The width of the ridge is hence a function of spreading rate – slow ridges like the MAR have spread much less far (showing a narrower profile) than faster ridges like the EPR (wider profile) for the same amount of cooling and consequent bathymetric deepening. Two processes, ridge-push and slab pull, are thought to be

neg: Maple Ridge, British Columbia continue to be the largest private-sector employers in the district. They include Interfor and companies that manufacture building materials, yachts and poles. The soil and climate are not well-suited to the production of traditional food crops, but the Maple Ridge agriculture sector generates upwards of $40 million annually (2001), largely from berry crops, nurseries and horse breeding. Maple Ridge hosted the only North American high volume manufacturer of lithium-ion batteries, E-One Moli Energy. However, the factory suffered major layoffs due to the 2008 recession and now only hosts a small product testing team. The City of Maple Ridge has become

neg: Barbara Gordon and her primary field agent Black Canary. She has demonstrated a willingness to use lethal force, such as in Chuck Dixon's "Birds of Prey" issue #10, "State of War", which contradicts the methodology used by her closest allies and most DC Comics characters. Dixon stated an interview that "[s]he's less morally conflicted than other characters. She's very 'means to an end' oriented. She sees that sometimes you have to kill to save lives. She's not comfortable with that but accepts it. She would do anything to avoid using deadly force but, when push comes to shove, she'll drop the hammer."

neg: Golgi tendon organ lose their medullary sheaths; the axis-cylinders subdivide and end between the tendon fibers in irregular disks or varicosities (see figure). When the muscle generates force, the sensory terminals are compressed. This stretching deforms the terminals of the Ib afferent axon, opening stretch-sensitive cation channels. As a result, the Ib axon is depolarized and fires nerve impulses that are propagated to the spinal cord. The action potential frequency signals the force being developed by 10 to 20 of the many motor units within the muscle. This is representative of whole muscle force. The Ib sensory feedback generates spinal reflexes and supraspinal

neg: Star Wars: The Clone Wars (2002 video game) used involve primary and secondary fire, acceleration and a special ability that changes from vehicle to vehicle. The Jedi segments use basic lightsaber slashing and two force powers, which rely on a force power bar, lightsaber throw and force push. The game begins with the Battle of Geonosis from "". The player takes control of Jedi Master Mace Windu as he uses his lightsaber to battle droids across the war torn planet. Later on the story takes the player through the evacuation of Rhen Var, with the player, as Anakin Skywalker, leading the escape only minutes before the Separatist Army

neg: Relativistic electromagnetism electric technology, especially generators, motors, and lighting at first. The Coulomb force was generalized to the Lorentz force. For example, with this model transmission lines and power grids were developed and radio frequency communication explored. An effort to mount a full-fledged electromechanics on a relativistic basis is seen in the work of Leigh Page, from the project outline in 1912 to his textbook "Electrodynamics" (1940) The interplay (according to the differential equations) of electric and magnetic field as viewed over moving observers is examined. What is charge density in electrostatics becomes proper charge density and generates a magnetic field for

neg: Foreign worker and health services, housing, roads, communications, and other infrastructure to accommodate the basic needs of the newcomers. The foreign labor force is a substantial drain of the GCC states' hard currency earnings, with remittances to migrants' home countries in the early 2000s amounting to $27 billion per year, including $16 billion from Saudi Arabia alone. It has been shown that the percentage of the GDP that foreign labor generates is roughly equal to what the state has to spend on them. The main concerns of developed countries regarding immigration centers are: (1) the local job seekers' fear of competition from

neg: Magnetic field the magnetic field generated by a steady current. Also in this work, Ampère introduced the term electrodynamics to describe the relationship between electricity and magnetism. In 1831, Michael Faraday discovered electromagnetic induction when he found that a changing magnetic field generates an encircling electric field. He described this phenomenon in what is known as Faraday's law of induction. Later, Franz Ernst Neumann proved that, for a moving conductor in a magnetic field, induction is a consequence of Ampère's force law. In the process, he introduced the magnetic vector potential, which was later shown to be equivalent to the underlying mechanism

neg: The Legacy of Heorot without its primary evolutionary advantage: A super-oxygenated blood supplement. A grendel can, on demand, release a chemical supercharger into its blood that does to it what nitrous oxide does to internal combustion engines – enable short bursts of speed in excess of 100 miles per hour. This trait makes the grendels devastating, but is also the key to their destruction. The supercharger, when used, generates large amounts of waste heat that warm up grendel bodies so rapidly they will die after using it if they do not immediately return to water to cool off. With this knowledge and their technology

neg: Slab suction Slab suction Slab suction forces are one of the major plate tectonic driving forces. Slab suction occurs when a subducting slab drives flow in the nearby mantle. This flow then exerts shear tractions on nearby plates. This driving force is important when the slabs (or portions thereof) are not strongly attached to the rest of their respective tectonic plate. They cause both the subducting and overriding plate to move in the direction of the subduction zone. Slab suction is the weakest of the three major forces involved in plate motion, the others being slab pull, the strongest, and ridge push.

neg: Slab suction Slab suction Slab suction forces are one of the major plate tectonic driving forces. Slab suction occurs when a subducting slab drives flow in the nearby mantle. This flow then exerts shear tractions on nearby plates. This driving force is important when the slabs (or portions thereof) are not strongly attached to the rest of their respective tectonic plate. They cause both the subducting and overriding plate to move in the direction of the subduction zone. Slab suction is the weakest of the three major forces involved in plate motion, the others being slab pull, the strongest, and ridge push.

neg: Norman W. Walker every ailment is constipation, stating that constipation is "the primary cause of nearly every disturbance of the human system." This was, in his view, because the blood vessels lining the colon collect nutrients missed by the small intestine. In his book "Pure and Simple Natural Weight Control", Walker stated: "If the feces in the colon have putrefied and fermented, any nutritional elements present in it would pass into the bloodstream as polluted products. What would otherwise be nutritional instead generates toxemia, a condition in which the blood contains poisonous products which are produced by the growth of pathogenic or disease-producing

neg: Utrecht Hill Ridge place in 1940 as important part of Battle of the Netherlands. The highest peak of the ridge is the Amerongse Berg (“Amerongen Mountain”) of 68 m. On the northern side the ridge continues to the shores of the Gooimeer (“Lake Gooi”). The Utrecht Hill Ridge was created 150.000 years ago as a push moraine in the Wolstonian Stage, a middle Pleistocene glacial period. Before that time the rivers Rhine and Meuse flowed more north, and created deposits of sand. The glaciers pushed these deposits in a southern and western direction. After the last Ice Age the area got overgrown with

neg: Ridge push upwelling magma wedging the lithosphere apart. In 1964 and 1965, Egon Orowan proposed the first gravitational mechanism for spreading at mid-ocean ridges, postulating that spreading can be derived from the principles of isostasy. In Orowan's proposal, pressure within and immediately under the elevated ridge is greater than the pressure in the oceanic crust to either side due to the greater weight of overlying rock, forcing material away from the ridge, while the lower density of the ridge material relative to the surrounding crust would gradually compensate for the greater volume of rock down to the depth of isostatic compensation. Similar

neg: Pea Ridge Masonic College Pea Ridge Masonic College The Pea Ridge Masonic College was a private school located in Pea Ridge, Arkansas that offered a structured education in primary, secondary and collegiate levels. It served primarily as a normal college or teaching school, where students were taught to work as primary and secondary education teachers. It operated from 1874–1916, before being absorbed into the town's public primary and secondary schools. The beginning of the Pea Ridge Masonic College, also known as Mount Vernon Normal College, Pea Ridge Academy, Pea Ridge College and Pea Ridge Normal College, dates to 1860, when Rev. Elijah Buttram, a

neg: Fire Scale Mountain of the nearby community and the intersection of the Blue Ridge Parkway and US 421. Fire Scale Mountain Fire Scale Mountain is a mountain in the North Carolina High Country, near the community of Deep Gap. The majority of the mountain is within the Blue Ridge Parkway. Its elevation reaches . Split along the Eastern Continental Divide, it generates feeder streams to both the South Fork New River (via Gap Creek) and Yadkin River (via Stony Fork). Ivy Point Ridge juts out southeasterly from the mountain, which is used by US 421 to transition from the Foothills to the Mountains.

neg: Humpback Mountain (North Carolina) Humpback Mountain (North Carolina) Humpback Mountain is a mountain in the North Carolina High Country and the Pisgah National Forest, located southwest of Linville Falls. The mountain is accessible along the Blue Ridge Parkway, which ride along its eastern slope. The peak reaches an elevation of , in Avery County; while the overall mountain is also in McDowell County. Two ridges, Mill Ridge and Dividing Ridge, form from the western side of the mountain. Split by the Eastern Continental Divide, the mountain generates feeder streams to the North Fork Catawba River on its eastern slopes and to the North Toe

neg: Kokoda Track campaign battle at Brigade Hill – Mission Ridge has been described as a "stunning victory" for the Japanese and a "catastrophe" for the Australians. Even before the battle at Mission Ridge had concluded, Rowell had issued orders recalling Potts to Port Moresby. What remained of the 2/14th and 2/16th Battalions rejoined the 21st Brigade and withdrew south toward Ioribaiwa and harassed the Japanese advance. Porter, having orders to stabilise the position, took command of Maroubra Force on 10 September. By this time, the 2/14th and 2/16th Battalion were so reduced in strength that they were formed into a combined force fielding

neg: Electromotive force an emf. The points below illustrate the more formal usage, in terms of the distinction between emf and the voltage it generates: In the case of an open circuit, the electric charge that has been separated by the mechanism generating the emf creates an electric field opposing the separation mechanism. For example, the chemical reaction in a voltaic cell stops when the opposing electric field at each electrode is strong enough to arrest the reactions. A larger opposing field can reverse the reactions in what are called "reversible" cells. The electric charge that has been separated creates an electric potential

neg: Earth's magnetic field the core (planetary differentiation, the iron catastrophe) as well as decay of radioactive elements in the interior. The pattern of flow is organized by the rotation of the Earth and the presence of the solid inner core. The mechanism by which the Earth generates a magnetic field is known as a dynamo. The magnetic field is generated by a feedback loop: current loops generate magnetic fields (Ampère's circuital law); a changing magnetic field generates an electric field (Faraday's law); and the electric and magnetic fields exert a force on the charges that are flowing in currents (the Lorentz force). These

neg: Buttress thread on inspection that a buttress thread with perpendicular face, operating in a split nut, generates minimal disengagement force when tightened in the normally loaded direction, and thus it is possible to derive quick release devices to, for example, allow rapid repositioning of the movable jaw of a vice without having to rotate the screw by many turns. A screw profile, such as acme, where the thrust face is not perpendicular to the axis, generates a significant disengagement force on a split nut, therefore a more robust controlling mechanism would be required. Quick release vices are readily available. It is not

neg: Tomkins Knob Tomkins Knob Tomkins Mountain (variant names: Thomkins Knob, Thompkins Knob and Tompkins Knob) is a mountain in the North Carolina High Country, near the community of Deep Gap. The majority of the mountain is within the Blue Ridge Parkway. Its elevation reaches and it also marks the corner between Ashe, Watauga, and Wilkes counties. Split along the Eastern Continental Divide, it generates feeder streams to both the South Fork New River (via West Fork Pine Swamp Creek) and Yadkin River (via South Prong Lewis Fork). Laurel Spur Ridge juts out south from the mountain; while Husons Ridge goes northwest, marking

neg: Types of volcanic eruptions volcanism is driven by various processes. Volcanoes near plate boundaries and mid-ocean ridges are built by the decompression melting of mantle rock that rises on an upwelling portion of a convection cell to the crustal surface. Eruptions associated with subducting zones, meanwhile, are driven by subducting plates that add volatiles to the rising plate, lowering its melting point. Each process generates different rock; mid-ocean ridge volcanics are primarily basaltic, whereas subduction flows are mostly calc-alkaline, and more explosive and viscous. Spreading rates along mid-ocean ridges vary widely, from per year at the Mid-Atlantic Ridge, to up to along the East

neg: Tongue thrust about four pounds (1.8 kg) of pressure each time. If a person suffers from tongue thrusting, this continuous pressure tends to force the teeth out of alignment. Many people who tongue thrust have open bites; the force of the tongue against the teeth is an important factor in contributing to "bad bite" (malocclusion). Many orthodontists have completed dental treatment with what appeared to be good results, only to discover that the case relapsed because of the patient's tongue thrust. If the tongue is allowed to continue its pushing action against the teeth, it will continue to push the teeth forward

neg: Hill 262 weather, an effort was made to air-drop ammunition to the Polish force on the ridge. Learning that the Canadians had resumed their push and were making for Point 239, at 07:00 a platoon of the 1st Armoured Regiment's 3rd Squadron reconnoitered the German positions below the "Zameczek". Further German attacks were launched during the morning, both from inside the pocket along the Chambois–Vimoutiers road, and from the east. Raids from the direction of Coudehard managed to penetrate the Polish defences and take captives. The final German effort came at around 11:00—SS remnants had infiltrated through the wooded hills to the

neg: 188th Infantry Regiment (United States) would be dropped there. As this occurred, the 187th relieved the 188th of the operations and defense of Nasugbu. General Eichelberger of the 8th Army had the 11th attached to his command. He bluffed the enemy into thinking a large force was moving up Highway 17 across Tagaytay Ridge heading for Manila. He ordered the men to move as fast as possible and make as much dust as possible. They were to fire as many weapons and artillery as possible. The 188th spearheaded the push to Manila. They moved so fast under Colonel Soule that the Japanese were taken by

neg: Battle of Mount Tambu Mubo and Lababia Ridge in late June and early July 1943, the Australian troops from Brigadier Murray Moten's 17th Brigade was ordered to push towards the Komiatum and Mount Tambu area—about from Salamaua—as the Allies advanced towards Salamaua, with a view to tying down Japanese reserves there, to divert their attention away from Lae. The highest feature on the route between Mubo and Salamaua, Mount Tambu consisted of a series of steep razorback ridges that were covered in dense jungle. Throughout July and August, troops from the Second Australian Imperial Force 2/5th and 2/6th Infantry Battalions and the Militia 42nd

neg: Walnut Ridge Air Force Station Walnut Ridge Air Force Station Walnut Ridge Air Force Station (ADC ID: SM-143) is a closed United States Air Force General Surveillance Radar station. It is located north-northeast of Walnut Ridge, Arkansas. It was closed in 1963. Walnut Ridge Air Force Station was initially part of Phase II of the Air Defense Command Mobile Radar program. The Air Force approved this expansion of the Mobile Radar program on October 23, 1952. Radars in this network were designated "SM." The United States Air Force Air Defense Command established a Mobile Radar site at Walnut Ridge Regional Airport in 1956, designating it

neg: Galápagos Microplate East Pacific Rise and, in fact, the westerly propagating Cocos-Nazca Ridge generates secondary transient rifts by shear stresses. The tip of the Cocos-Nazca ridge has maintained a distance of 50 km from the East Pacifc Rise and slightly moved its position into the eastern part of the microplate due to clockwise rotation of the GMP. Current estimates of the microplate motion may be inaccurate because the limited observational data set is too small for the large vector-based calculation assumptions. That said, the estimated rotational pole is located at 1.4°S, 99.8°W, 400 km southeast from the center of the microplate and

neg: Dry gas seal Dry gas seal Dry gas seals are non-contacting, dry-running mechanical face seals that consist of a mating (rotating) ring and a primary (stationary) ring. When operating, lifting geometry in the rotating ring generates a fluid-dynamic lifting force causing the stationary ring to separate and create a gap between the two rings. Dry gas seals are mechanical seals but use other chemicals and functions so that they do not contaminate a process. These seals are typically used in a harsh working environment such as oil exploration, extraction and refining, petrochemical industries, gas transmission and chemical processing. Machined-in lift profiles on one

neg: Push–pull converter start anytime later. The S-shaped current is needed to improve over the simpler converters and deal efficiently with remanence. Push–pull converter A push–pull converter is a type of DC-to-DC converter, a switching converter that uses a transformer to change the voltage of a DC power supply. The distinguishing feature of a push-pull converter is that the transformer primary is supplied with current from the input line by pairs of transistors in a symmetrical push-pull circuit. The transistors are alternately switched on and off, periodically reversing the current in the transformer. Therefore, current is drawn from the line during both halves

neg: Push–pull converter Push–pull converter A push–pull converter is a type of DC-to-DC converter, a switching converter that uses a transformer to change the voltage of a DC power supply. The distinguishing feature of a push-pull converter is that the transformer primary is supplied with current from the input line by pairs of transistors in a symmetrical push-pull circuit. The transistors are alternately switched on and off, periodically reversing the current in the transformer. Therefore, current is drawn from the line during both halves of the switching cycle. This contrasts with buck-boost converters, in which the input current is supplied by a single

neg: Running injuries in traditional running shoes is thought to encourage a foot strike pattern, where the heel lands first. Heel striking generates a relatively large amount of impact force that can put different parts of the lower extremities under excessive stress. Barefoot running has been promoted as one method of reducing the risk of running related injuries. Barefoot running is thought to improve running form by encouraging forefoot striking. The collision of the forefoot with the ground generates a significantly smaller impact force in comparison to striking heel first. However, barefoot running leaves the foot unprotected from stepping on sharp objects. Although

neg: Ultra-high-pressure metamorphism specific processes by which UHP terrains were exhumed to Earth's surface appear to have been different in different locations. If continental lithosphere is subducted because of its attachment to downgoing oceanic lithosphere, the downward slab pull force may exceed the strength of the slab at some time and location, and necking of the slab initiates. The positive buoyancy of the continental slab—in opposition principally to ridge push—can then drive exhumation of the subducting crust at a rate and mode determined by plate geometry and the rheology of the crustal materials. The Norwegian Western Gneiss Region is the archetype for this

neg: West Thornton Primary Academy pupils who attend the school. An Ofsted report, released in November 2007, stated that "West Thornton Primary is a good and improving school with a number of outstanding features." and that "The driving force behind the school's success is the headteacher who provides inspirational leadership and has a very clear vision of what primary school education should be." The overall grade was 2 with a few areas rated as Outstanding (1) West Thornton Primary Academy West Thornton Primary Academy (formerly West Thornton Primary Academy) is a primary school with academy status for pupils aged between 4 and 11 years. The

neg: Continental drift ridge-push, and other forces of tectonophysics will further separate and rotate those two continents. It was that temporary feature that inspired Wegener to study what he defined as continental drift although he did not live to see his hypothesis generally accepted. The widespread distribution of Permo-Carboniferous glacial sediments in South America, Africa, Madagascar, Arabia, India, Antarctica and Australia was one of the major pieces of evidence for the theory of continental drift. The continuity of glaciers, inferred from oriented glacial striations and deposits called tillites, suggested the existence of the supercontinent of Gondwana, which became a central element of the

neg: Da Vinci Science Center wide. At the Center's Nano Exhibits, visitors learn the basic behind this field and get a glimpse at how it is used in our modern world. Visitors also get to apply what they learn themselves, building large replicas of carbon nanotubes and a feature the Center calls "Balance Our Nano Future". Netwon's popular Second Law of Motion is expressed as f = ma, or force equal mass times acceleration. That's what visitors experience here. The Netwon Chairs are just chairs that roll back when visitors push each other. The simple design illustrates Netwon's law - if two visitors apply the

neg: Cytoskeleton motor proteins. Microfilaments are composed of linear polymers of G-actin proteins, and generate force when the growing (plus) end of the filament pushes against a barrier, such as the cell membrane. They also act as tracks for the movement of myosin molecules that affix to the microfilament and "walk" along them. In general, the major component or protein of microfilaments are actin. The G-actin monomer combines to form a polymer which continues to form the microfilament (actin filament). These subunits then assemble into two chains that intertwine into what is called, F-actin chains. Myosin motoring along F-actin filaments generates contractile

neg: Mammal [[File:Israeli Bats - 26 September 2015.webm|thumb|upright=1.35|Slow-motion and normal speed of [[Egyptian fruit bat]]s flying]] Bats are the only mammals that can truly fly. They fly through the air at a constant speed by moving their wings up and down (usually with some fore-aft movement as well). Because the animal is in motion, there is some airflow relative to its body which, combined with the velocity of the wings, generates a faster airflow moving over the wing. This generates a lift force vector pointing forwards and upwards, and a drag force vector pointing rearwards and upwards. The upwards components of these

neg: Long Range Strike Bomber program Force Chief of Staff General Norton Schwartz said that the USAF's focus in the 2010 budget was on "Long-range strike, not next-generation bomber" and will push for this in the Quadrennial Defense Review. In June 2009, the two teams working on next-generation bomber proposals were told to "close up shop". On 16 September 2009, Secretary of Defense Robert Gates endorsed the concept of a new bomber but insisted that it must be affordable, stating: "What we must not do is repeat what happened with our last manned bomber. By the time the research, development, and requirements processes ran their course,

neg: Andrew Huxley simultaneously published in the 22 May 1954 issue of "Nature". Thus the four people introduced what is called the sliding filament theory of muscle contractions. Huxley synthesized his findings, and the work of colleagues, into a detailed description of muscle structure and how muscle contraction occurs and generates force that he published in 1957. In 1966 his team provided the proof of the theory, and has remained the basis of modern understanding of muscle physiology. In 1953, Huxley worked at Woods Hole, Massachusetts, as a Lalor Scholar. He gave the Herter Lectures at Johns Hopkins Medical School in 1959 and

neg: Southern strategy Party. It also helped to push the Republican Party much more to the right. The "Southern Strategy" refers primarily to "top down" narratives of the political realignment of the South which suggest that Republican leaders consciously appealed to many white Southerners' racial grievances in order to gain their support. This top-down narrative of the Southern Strategy is generally believed to be the primary force that transformed Southern politics following the civil rights era. This view has been questioned by historians such as Matthew Lassiter, Kevin M. Kruse and Joseph Crespino, who have presented an alternative, "bottom up" narrative, which Lassiter

neg: Cuban intervention in Angola had supported the MPLA in the past, they now sided with the FNLA and UNITA. China was especially concerned about African sensitivities and pride and considered South African involvement as the primary and relative complex problem. Kissinger responded, that the U.S. is prepared to "push out South Africa as soon as an alternative military force can be created". It is in this meeting that President Ford told the Chinese: "We had nothing to do with the South African involvement, and we will take action to get South Africa out, provided a balance can be maintained for their not being in".

neg: 3rd Ranger Infantry Company (United States) second cycle of Ranger training at the Ranger Training Center at Fort Benning, Georgia. The company deployed to South Korea in March 1951 and was assigned to the U.S. 3rd Infantry Division for four months, where it was used as a reconnaissance and scouting unit, probing North Korean People's Volunteer Army positions. The company is known for its "Battle of Bloody Ridge" on 11 April where, on its first mission, it was able to push back the opposing force. The company later supported the 3rd Infantry Division at the Battle of the Imjin River. Later in the summer, the company

neg: Blue Ridge (film) tied to the trailer park and under his control and hopes to convince J.T. to join his questionable lifestyle. As pressure builds for J.T. to face his fear of change and the outside world, Sara holds on to the hope that they can push forward together and live out their dream. Shot on film over a 28-day period, it is a high quality 97 min. drama with a unique perspective on modern rural life. Highlighted with subtle humor, authentic locations with naturalistic cinematography and a great haunting original score by Andrew Barkan. Blue Ridge (film) Blue Ridge is a 2010

neg: Unique key foreign keys, but most RDBMS only allow a foreign key constraint against a primary key. The definition of other unique keys is syntactically very similar to primary keys. Likewise, unique keys can be defined as part of the codice_1 SQL statement. Differences between Primary Key constraint and Unique constraint: Primary Key constraint 1. A primary key "cannot" allow null (a primary key cannot be defined on columns that allow nulls). 2. Each table cannot have more than one primary key. 3. On some RDBMS a primary key generates a clustered index by default. Unique constraint 1. A unique constraint can

neg: Battle of Maya 260 dead and wounded plus six officers and 140 men captured unwounded. Pringle rode to join Cameron's brigade at the western end of Maya ridge. The battalions of Pringle's brigade marched up the steep path toward the eastern end of the ridge, coming into action piecemeal. The 34th Foot arrived first but was unable to push the French off the crest of the ridge. A member of the 34th recalled, "the pass up was narrow, steep and tiresome, the loads heavy, and the men blown. We labored on but all too late -- our comrades [that is, the light infantry