Question: What is the closest parent taxonomy of this plant?

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Betula nigra. Betula nigra, the black birch, river birch or water birch, is a species of birch native to the Eastern United States from New Hampshire west to southern Minnesota, and south to northern Florida and west to Texas. It is one of the few heat-tolerant birches in a family of mostly cold-weather trees which do not thrive in USDA Zone 6 and up. "B. nigra" commonly occurs in floodplains and swamps.## Description."Betula nigra" is a deciduous tree growing to 25-30 (m) with a trunk 50 to 150 (cm) in diameter. The base of the tree is often divided into multiple slender.

Betula nigra. trunks.BarkBark characteristics of the river birch differ during its youth stage, maturation, and old growth. The bark of a young river birch can vary from having a salmon-pink to brown-gray tint and can be described as having loose layers of curling, paper thin scales. As the tree matures, the salmon-pink color is exchanged for a reddish-brown with a dark grey base color. The scales on a mature tree lack the loose curling and are closely pressed into thick, irregular plates. These scales are slightly separated from the trunk and can shift outward to the side. Once the river birch ages.

Betula nigra. past maturity, the scales become thicker towards the base of the trunk and are divided in deep furrows.Leaves and fruitThe twigs are glabrous or thinly hairy. There is an absence of terminal buds, and lateral buds often have a hook at the tip of the bud, which differs from other species in the family Betulaceae. The leaves are alternate, ovate, 4-8 (cm) long and 3-6 (cm) broad, with a serrated margin and five to twelve pairs of veins. The upper surface of the leaf is dark green in color, while the underside can be described as having a light yellow-green.

Betula nigra. color. The leaves turn yellow in Autumn. The flowers are wind-pollinated catkins 3-6 (cm) long, the male catkins pendulous, the female catkins erect. The fruit is unusual among birches in maturing in late spring; it is composed of numerous tiny winged seeds packed between the catkin bracts.## Taxonomy."Betula nigra" is a tree that falls into the family of Betulaceae, which is commonly known as the Birch or Alder Family. This family comprises six genera ("Alnus, Betula, Carpinus, Corylus, Ostrya," and "Ostryopsis)" and includes alders, birches, hornbeams, and hazelnuts. Species within this family, along with "Betula nigra", are shrubs or trees.

Betula nigra. that grow along stream sides or in poorly drained soils throughout the Northern Hemisphere. Betulaceae is included within the order Fagales, which branches from the Rosid clade.## Habitat and range.The river birch is often found in low-elevation regions from as north as Massachusetts to as south as northern Florida. It can be found extending west to Kansas and east to the coast where proper habitat conditions occur. As its name depicts, this birch is found along stream-sides. It can also be a prominent species found in forested wetland communities and in areas containing moist soil, such as floodplains. States include:.

Betula nigra. Alabama, Arkansas, Connecticut, Delaware, Florida, Georgia, Illinois, Indiana, Iowa, Kansas, Kentucky, Louisiana, Maryland, Massachusetts, Mississippi, Missouri, New Hampshire, New Jersey, New York, North Carolina, Ohio, Oklahoma, Pennsylvania, South Carolina, Tennessee, Texas, Virginia, West Virginia, and Wisconsin.River birch is best placed in USDA hardiness zones 4-9.## Conservation status in the United States.It is listed as threatened in New Hampshire.## Ecology.In states in which mining is prevalent, the river birch is often used for reclamation and erosion control, as it is well suited for soils that are too acidic for other species of hardwoods. In West Virginia, they have been found to.

Betula nigra. establish within mine refuge sites after being blown from neighboring areas.As the species occurs predominately in flood plains and along stream banks, it is described as being moderately tolerant of flooding. Saplings were observed to survive up to 30 days of continuous flooding in some regions. While the species is tolerant of excessive water, it is intolerant of shade. Seeds will not germinate without a large amount of direct sunlight.This species is utilized by many local bird species, such as waterfowl, ruffed grouse, and wild turkey. Many waterfowl use the cover for nesting sites, while the ruffed grouse and wild.

Betula nigra. turkey use the seeds as a food source. Deer have been known to graze on saplings or reachable branches. It is a larval host for over fifteen moth species, including "Acronicta betulae", "Acrobasis betulivorella", "Bucculatrix coronatella", "Nemoria bistriaria", "Nites betulella", "Orgyia leucostigma", and "Pseudotelphusa betulella".## Germination.Seeds are typically produced annually. Seasonal development begins in the fall as male catkins begin to form and mature. The emergence of female catkins corresponds with the return of leaves around early spring. Male and female fruit matures during the spring season or in the early summer months.Once mature, the seeds are predominantly spread by.

Betula nigra. wind or water from neighboring stream channels. Seeds spread by water are generally more successful as the moist banks of stream channels, where the seeds are deposited, are favorable for germination and sturdy establishment. Successful germination often occurs in large numbers along sandbars, where alluvial soil is present.## Cultivation and uses.While its native habitat is wet ground, it will grow on higher land, and its bark is quite distinctive, making it a favored ornamental tree for landscape use. A number of cultivars with much whiter bark than the normal wild type have been selected for garden planting, including 'Heritage' and.

Betula nigra. 'Dura Heat'; these are notable as the only white-barked birches resistant to the bronze birch borer ("Agrilus anxius") in warm areas of the southeastern United States of America.Native Americans used the boiled sap as a sweetener similar to maple syrup, and the inner bark as a survival food. The river birch is not typically used in the commercial lumber industry, due to knotting, but its strong, closely grained wood is sometimes used for local furniture, woodenware, and fuel. ## Essential oils.The essential oils derived from leaves, inner bark, and buds of "B. nigra" are mostly composed of eugenol, linalool, palmitic.

Betula nigra. acid, and heptacosane with many more compounds in smaller concentrations. The combined essential oils are phytotoxic to lettuce ("Lactuca sativa") and perennial ryegrass ("Lolium perenne") seedlings. They have also demonstrated insecticidal, nematicidal, and antibacterial properties.Bioimages.vanderbilt.edu: "Betula nigra" images"Betula nigra" — Diagnostic photos and information, Morton Arboretum accession 232-51-3.


Question: What equipment or engine is used by this item to provide power?

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Electric motor. An electric motor is an electrical machine that converts electrical energy into mechanical energy. Most electric motors operate through the interaction between the motor's magnetic field and electric current in a wire winding to generate force in the form of torque applied on the motor's shaft. An electric generator is mechanically identical to an electric motor, but operates with a reversed flow of power, converting mechanical energy into electrical energy.Electric motors can be powered by direct current (DC) sources, such as from batteries, or rectifiers, or by alternating current (AC) sources, such as a power grid, inverters or electrical generators.Electric.

Electric motor. braking with traction motors, electric motors can be used in reverse as generators to recover energy that might otherwise be lost as heat and friction.Electric motors produce linear or rotary force (torque) intended to propel some external mechanism, such as a fan or an elevator. An electric motor is generally designed for continuous rotation, or for linear movement over a significant distance compared to its size. Magnetic solenoids are also transducers that convert electrical power to mechanical motion, but can produce motion over only a limited distance.## History.## Early motors.Before modern electromagnetic motors, experimental motors that worked by electrostatic force.

Electric motor. persistent electric currents. Hans Christian Ørsted discovered in 1820 that an electric current creates a magnetic field, which can exert a force on a magnet. It only took a few weeks for André-Marie Ampère to develop the first formulation of the electromagnetic interaction and present the Ampère's force law, that described the production of mechanical force by the interaction of an electric current and a magnetic field. The first demonstration of the effect with a rotary motion was given by Michael Faraday on 3 September 1821 in the basement of the Royal Institution. A free-hanging wire was dipped into a.

Electric motor. pool of mercury, on which a permanent magnet (PM) was placed. When a current was passed through the wire, the wire rotated around the magnet, showing that the current gave rise to a close circular magnetic field around the wire. Faraday published the results of his discovery in the "Quarterly Journal of Science", and sent copies of his paper along with pocket-sized models of his device to colleagues around the world so they could also witness the phenomenon of electromagnetic rotations. This motor is often demonstrated in physics experiments, substituting brine for (toxic) mercury. Barlow's wheel was an early refinement.

Electric motor. to this Faraday demonstration, although these and similar homopolar motors remained unsuited to practical application until late in the century.In 1827, Hungarian physicist Ányos Jedlik started experimenting with electromagnetic coils. After Jedlik solved the technical problems of continuous rotation with the invention of the commutator, he called his early devices "electromagnetic self-rotors". Although they were used only for teaching, in 1828 Jedlik demonstrated the first device to contain the three main components of practical DC motors: the stator, rotor and commutator. The device employed no permanent magnets, as the magnetic fields of both the stationary and revolving components were produced.

Electric motor. then higher performance.In 1855, Jedlik built a device using similar principles to those used in his electromagnetic self-rotors that was capable of useful work. He built a model electric vehicle that same year.A major turning point came in 1864, when Antonio Pacinotti first described the ring armature (although initially conceived in a DC generator, i.e. a dynamo). This featured symmetrically-grouped coils closed upon themselves and connected to the bars of a commutator, the brushes of which delivered practically non-fluctuating current. The first commercially successful DC motors followed the developments by Zénobe Gramme who, in 1871, reinvented Pacinotti's design and adopted.

Electric motor. from such tasks as handling grain or pumping water. Household uses (like in washing machines, dishwashers, fans, air conditioners and refrigerators (replacing ice boxes)) of electric motors reduced heavy labor in the home and made higher standards of convenience, comfort and safety possible. Today, electric motors consume more than half of the electric energy produced in the US.## AC motors.In 1824, French physicist François Arago formulated the existence of rotating magnetic fields, termed Arago's rotations, which, by manually turning switches on and off, Walter Baily demonstrated in 1879 as in effect the first primitive induction motor. In the 1880s many.

Electric motor. stator, which does not. It also includes two electrical parts, a set of magnets and an armature, one of which is attached to the rotor and the other to the stator, together forming a magnetic circuit: Field magnets - The magnets create a magnetic field that passes through the armature. These can be electromagnets or permanent magnets. The field magnet is usually on the stator and the armature on the rotor, but in some types of motor these are reversed.## Bearings.The rotor is supported by bearings, which allow the rotor to turn on its axis. The bearings are in turn.

Electric motor. supported by the motor housing.## Rotor.The rotor is the moving part that delivers the mechanical power. The rotor typically holds conductors that carry currents, which the magnetic field of the stator exerts force on to turn the shaft. Alternatively, some rotors carry permanent magnets, and the stator holds the conductors. Permanent magnets offer high efficiency over a larger operating speed and power range.An air gap between the stator and rotor allows it to turn. The width of the gap has a significant effect on the motor's electrical characteristics. It is generally made as small as possible, as a large gap.

Electric motor. weakens performance. It is the main source of the low power factor at which motors operate. The magnetizing current increases and the power factor decreases with the air gap, so narrow gaps are better. Conversely, gaps that are too small may pose mechanical problems in addition to noise and losses.The motor shaft extends through the bearings to the outside of the motor, where the load is applied. Because the forces of the load are exerted beyond the outermost bearing, the load is said to be overhung.## Stator.The stator surrounds the rotor, and usually holds field magnets, which are either electromagnets.

Electric motor. consisting of wire windings around a ferromagnetic iron core or permanent magnets. These create a magnetic field that passes through the rotor armature, exerting force on the windings. The stator core is made up of many thin metal sheets that are insulated from each other, called laminations. Laminations are used to reduce energy losses that would result if a solid core were used. Resin-packed motors, used in washing machines and air conditioners, use the damping properties of resin (plastic) to reduce noise and vibration. These motors encapsulate the stator in plastic.## Armature.The armature consists of wire windings on a ferromagnetic.

Electric motor. core. Electric current passing through the wire causes the magnetic field from the field magnet to exert a force (Lorentz force) on it, turning the rotor, which delivers the mechanical output. Windings are wires that are laid in coils, usually wrapped around a laminated, soft, iron, ferromagnetic core so as to form magnetic poles when energized with current.Electric machines come in salient- and nonsalient-pole configurations. In a salient-pole motor the ferromagnetic cores on the rotor and stator have projections called poles facing each other, with a wire winding around each pole below the pole face, which become north or south.

Electric motor. poles of the magnetic field when current flows through the wire. In a nonsalient-pole (or distributed field or round-rotor) motor, the ferromagnetic core is a smooth cylinder, with the windings distributed evenly in slots about the circumference. Supplying alternating current in the windings creates poles in the core that rotate continuously. A shaded-pole motor has a winding around part of the pole that delays the phase of the magnetic field for that pole.## Commutator.A commutator is a rotary electrical switch that supplies current to the rotor. It periodically reverses the flow of current in the rotor windings as the shaft.

Electric motor. each rotor winding would reverse with each half turn, so the rotor would stop. Commutators are inefficient and commutated motors have been mostly replaced by brushless direct current motors, permanent magnet motors, and induction motors.## Motor supply and control.## Motor supply.A DC motor is usually supplied through a split ring commutator as described above. AC motors' commutation can be achieved using either a slip ring commutator or external commutation. It can be fixed-speed or variable-speed control type, and can be synchronous or asynchronous. Universal motors can run on either AC or DC.## Motor control.DC motors can be operated at variable.

Electric motor. speeds by adjusting the voltage applied to the terminals or by using pulse-width modulation (PWM).AC motors operated at a fixed speed are generally powered directly from the grid or through motor soft starters.AC motors operated at variable speeds are powered with various power inverter, variable-frequency drive or electronic commutator technologies.The term electronic commutator is usually associated with self-commutated brushless DC motor and switched reluctance motor applications.## Types.Electric motors operate on one of three physical principles: magnetism, electrostatics and piezoelectricity.In magnetic motors, magnetic fields are formed in both the rotor and the stator. The product between these two fields gives rise.

Electric motor. to a force, and thus a torque on the motor shaft. One, or both, of these fields must change with the rotation of the rotor. This is done by switching the poles on and off at the right time, or varying the strength of the pole.The main types are DC motors and AC motors, with the latter replacing the former. AC electric motors are either asynchronous or synchronous.Once started, a synchronous motor requires synchrony with the moving magnetic field's speed for all normal torque conditions.In synchronous machines, the magnetic field must be provided by means other than induction, such as.

Electric motor. from separately excited windings or permanent magnets.A fractional-horsepower motor either has a rating below about 1 horsepower (0.746 kW), or is manufactured with a standard-frame size smaller than a standard 1 HP motor. Many household and industrial motors are in the fractional-horsepower class.Notes: Rotation is independent of the frequency of the AC voltage. Rotation is equal to synchronous speed (motor-stator-field speed). In SCIM, fixed-speed operation rotation is equal to synchronous speed, less slip speed. In non-slip energy-recovery systems, WRIM is usually used for motor-starting but can be used to vary load speed. Variable-speed operation. Whereas induction- and synchronous-motor drives are.

Electric motor. typically with either six-step or sinusoidal-waveform output, BLDC-motor drives are usually with trapezoidal-current waveform; the behavior of both sinusoidal and trapezoidal PM machines is, however, identical in terms of their fundamental aspects. In variable-speed operation, WRIM is used in slip-energy recovery and double-fed induction-machine applications. A cage winding is a shorted-circuited squirrel-cage rotor, a wound winding is connected externally through slip rings. Mostly single-phase with some three-phase.Abbreviations: BLAC – Brushless AC BLDC – Brushless DC BLDM – Brushless DC motor EC – Electronic commutator PM – Permanent magnet IPMSM – Interior permanent-magnet synchronous motor PMSM – Permanent magnet synchronous motor.

Electric motor. SPMSM – Surface permanent magnet synchronous motor SCIM – Squirrel-cage induction motor SRM – Switched reluctance motor SyRM – Synchronous reluctance motor VFD – Variable-frequency drive WRIM – Wound-rotor induction motor WRSM – Wound-rotor synchronous motor LRA – Locked-rotor amps: The current you can expect under starting conditions when you apply full voltage. It occurs instantly during start-up. RLA – Rated-load amps: The maximum current a motor should draw under any operating conditions. Often mistakenly called running-load amps, which leads people to believe, incorrectly, that the motor should always pull these amps. FLA – Full-load amps: Changed in 1976 to.

Electric motor. "RLA – rated-load amps".## Self-commutated motor.## Brushed DC motor.Most DC motors are small permanent magnet (PM) types. They contain a brushed internal mechanical commutation to reverse motor windings' current in synchronism with rotation.## Electrically excited DC motor.A commutated DC motor has a set of rotating windings wound on an armature mounted on a rotating shaft. The shaft also carries the commutator. Thus, every brushed DC motor has AC flowing through its windings. Current flows through one or more pairs of brushes that touch the commutator; the brushes connect an external source of electric power to the rotating armature.The rotating armature.

Electric motor. consists of one or more wire coils wound around a laminated, magnetically "soft" ferromagnetic core. Current from the brushes flows through the commutator and one winding of the armature, making it a temporary magnet (an electromagnet). The magnetic field produced interacts with a stationary magnetic field produced by either PMs or another winding (a field coil), as part of the motor frame. The force between the two magnetic fields rotates the shaft. The commutator switches power to the coils as the rotor turns, keeping the poles from ever fully aligning with the magnetic poles of the stator field, so that.

Electric motor. – A set of windings that produces a magnetic field. Commutation: A mechanical technique in which rectification can be achieved, or from which DC can be derived.The five types of brushed DC motor are: Shunt-wound Series-wound Compound (two configurations): Cumulative compound Differentially compounded Permanent magnet (not shown) Separately excited (not shown).## Permanent magnet.A permanent magnet (PM) motor does not have a field winding on the stator frame, relying instead on PMs to provide the magnetic field. Compensating windings in series with the armature may be used on large motors to improve commutation under load. This field is fixed and cannot.

Electric motor. be adjusted for speed control. PM fields (stators) are convenient in miniature motors to eliminate the power consumption of the field winding. Most larger DC motors are of the "dynamo" type, which have stator windings. Historically, PMs could not be made to retain high flux if they were disassembled; field windings were more practical to obtain the needed flux. However, large PMs are costly, as well as dangerous and difficult to assemble; this favors wound fields for large machines.To minimize overall weight and size, miniature PM motors may use high energy magnets made with neodymium; most are neodymium-iron-boron alloy. With.

Electric motor. their higher flux density, electric machines with high-energy PMs are at least competitive with all optimally designed singly-fed synchronous and induction electric machines. Miniature motors resemble the structure in the illustration, except that they have at least three rotor poles (to ensure starting, regardless of rotor position) and their outer housing is a steel tube that magnetically links the exteriors of the curved field magnets.## Electronic commutator (EC).## Brushless DC.Some of the problems of the brushed DC motor are eliminated in the BLDC design. In this motor, the mechanical "rotating switch" or commutator is replaced by an external electronic switch.

Electric motor. synchronised to the rotor's position. BLDC motors are typically 85%+ efficient, reaching up to 96.5%, while brushed DC motors are typically 75–80% efficient.The BLDC motor's characteristic trapezoidal counter-electromotive force (CEMF) waveform is derived partly from the stator windings being evenly distributed, and partly from the placement of the rotor's permanent magnets. Also known as electronically commutated DC or inside-out DC motors, the stator windings of trapezoidal BLDC motors can be single-phase, two-phase or three-phase and use Hall effect sensors mounted on their windings for rotor position sensing and low cost closed-loop commutator control.BLDC motors are commonly used where precise speed.

Electric motor. motors are usually used in small equipment such as computers and are generally used in fans to remove heat. They make little noise, which is an advantage in equipment that is affected by vibrations.Modern BLDC motors range in power from a fraction of a watt to many kilowatts. Larger BLDC motors rated up to about 100 kW are used in electric vehicles. They also find use in electric model aircraft.## Switched reluctance motor.The switched reluctance motor (SRM) has no brushes or permanent magnets, and the rotor has no electric currents. Torque comes from a slight misalignment of poles on the.

Electric motor. rotor with poles on the stator. The rotor aligns itself with the magnetic field of the stator, while the stator field windings are sequentially energized to rotate the stator field.The magnetic flux created by the field windings follows the path of least magnetic sending the flux through rotor poles that are closest to the energized poles of the stator, thereby magnetizing those poles of the rotor and creating torque. As the rotor turns, different windings are energized, keeping the rotor turning.SRMs are used in some appliances and vehicles.## Universal AC/DC motor.A commutated, electrically excited, series or parallel wound motor is.

Electric motor. referred to as a universal motor because it can be designed to operate on either AC or DC power. A universal motor can operate well on AC because the current in both the field and the armature coils (and hence the resultant magnetic fields) synchronously reverse polarity, and hence the resulting mechanical force occurs in a constant direction of rotation.Operating at normal power line frequencies, universal motors are often used in sub-kilowatt applications. Universal motors formed the basis of the traditional railway traction motor in electric railways. In this application, using AC power on a motor designed to run on.

Electric motor. DC would experience efficiency losses due to eddy current heating of their magnetic components, particularly the motor field pole-pieces that, for DC, would have used solid (un-laminated) iron. They are now rarely used.An advantage is that AC power may be used on motors that specifically have high starting torque and compact design if high running speeds are used. By contrast, maintenance is higher and lifetimes are shortened. Such motors are used in devices that are not heavily used, and have high starting-torque demands. Multiple taps on the field coil provide (imprecise) stepped speed control. Household blenders that advertise many speeds.

Electric motor. an asynchronous AC motor where power is transferred to the rotor by electromagnetic induction, much like transformer action. An induction motor resembles a rotating transformer, because the stator (stationary part) is essentially the primary side of the transformer and the rotor (rotating part) is the secondary side. Polyphase induction motors are widely used in industry.## Cage and wound rotor.Induction motors may be divided into Squirrel Cage Induction Motors (SCIM) and Wound Rotor Induction Motors (WRIM). SCIMs have a heavy winding made up of solid bars, usually aluminum or copper, electrically connected by rings at the ends of the rotor. The.

Electric motor. bars and rings as a whole are much like an animal's rotating exercise cage.Currents induced into this winding provide the rotor magnetic field. The shape of the rotor bars determines the speed-torque characteristics. At low speeds, the current induced in the squirrel cage is nearly at line frequency and tends to stay in the outer parts of the cage. As the motor accelerates, the slip frequency becomes lower, and more current reaches the interior. By shaping the bars to change the resistance of the winding portions in the interior and outer parts of the cage, a variable resistance is effectively.

Electric motor. steering wheels.Another common application is to control the throttle of an internal combustion engine with an electronic governor. The motor works against a return spring to move the throttle in accord with the governor output. The latter monitors engine speed by counting electrical pulses from the ignition system or from a magnetic pickup and depending on the speed, makes small adjustments to the amount of current. If the engine slows down relative to the desired speed, the current increases, producing more torque, pulling against the return spring and opening the throttle. Should the engine run too fast, the governor reduces.

Electric motor. the current, allowing the return spring to pull back and reduce the throttle.## Synchronous motor.A synchronous electric motor is an AC motor. It includes a rotor spinning with coils passing magnets at the same frequency as the AC and produces a magnetic field to drive it. It has zero slip under typical operating conditions. By contrast induction motors must slip to produce torque. One type of synchronous motor is like an induction motor except that the rotor is excited by a DC field. Slip rings and brushes conduct current to the rotor. The rotor poles connect to each other and.

Electric motor. when slip rate decreases sufficiently, the rotor (a smooth cylinder) becomes temporarily magnetized. Its distributed poles make it act like a permanent magnet synchronous motor. The rotor material, like that of a common nail, stays magnetized, but can be demagnetized with little difficulty. Once running, the rotor poles stay in place; they do not drift.Low-power synchronous timing motors (such as those for traditional electric clocks) may have multi-pole permanent magnet external cup rotors, and use shading coils to provide starting torque. "Telechron" clock motors have shaded poles for starting torque, and a two-spoke ring rotor that performs like a discrete.

Electric motor. allows for a smaller electronic converter but the cost of the rotor winding and slip rings may offset the saving in the power electronics components. Difficulties affect controlling speed near synchronous speed limit applications.## Special magnetic motors.## Rotary.## Ironless or coreless rotor motor.The coreless or ironless DC motor is a specialized permanent magnet DC motor. Optimized for rapid acceleration, the rotor is constructed without an iron core. The rotor can take the form of a winding-filled cylinder, or a self-supporting structure comprising only wire and bonding material. The rotor can fit inside the stator magnets; a magnetically soft stationary cylinder.

Electric motor. inside the rotor provides a return path for the stator magnetic flux. A second arrangement has the rotor winding basket surrounding the stator magnets. In that design, the rotor fits inside a magnetically soft cylinder that can serve as the motor housing, and provides a return path for the flux.Because the rotor is much lower mass than a conventional rotor, it can accelerate much more rapidly, often achieving a mechanical time constant under one millisecond. This is especially true if the windings use aluminum rather than (heavier) copper. The rotor has no metal mass to act as a heat sink;.

Electric motor. even small motors must be cooled. Overheating can be an issue for these designs.The vibrating alert of cellular phones can be generated by cylindrical permanent-magnet motors, or disc-shaped types that have a thin multipolar disc field magnet, and an intentionally unbalanced molded-plastic rotor structure with two bonded coreless coils. Metal brushes and a flat commutator switch power to the rotor coils.Related limited-travel actuators have no core and a bonded coil placed between the poles of high-flux thin permanent magnets. These are the fast head positioners for rigid-disk ("hard disk") drives. Although the contemporary design differs considerably from that of loudspeakers,.

Electric motor. it is still loosely (and incorrectly) referred to as a "voice coil" structure, because some earlier rigid-disk-drive heads moved in straight lines, and had a drive structure much like that of a loudspeaker.## Pancake or axial rotor motor.The printed armature or pancake motor has windings shaped as a disc running between arrays of high-flux magnets. The magnets are arranged in a circle facing the rotor spaced to form an axial air gap. This design is commonly known as the pancake motor because of its flat profile.The armature (originally formed on a printed circuit board) is made from punched copper sheets.

Electric motor. with 180 (C), Class H rating.The unique advantage of ironless DC motors is the absence of cogging (torque variations caused by changing attraction between the iron and the magnets). Parasitic eddy currents cannot form in the rotor as it is totally ironless, although iron rotors are laminated. This can greatly improve efficiency, but variable-speed controllers must use a higher switching rate (>40 kHz) or DC because of decreased electromagnetic induction.These motors were invented to drive the capstan(s) of magnetic tape drives, where minimal time to reach operating speed and minimal stopping distance were critical. Pancake motors are widely used in.

Electric motor. high-performance servo-controlled systems, robotic systems, industrial automation and medical devices. Due to the variety of constructions now available, the technology is used in applications from high temperature military to low cost pump and basic servos.Another approach (Magnax) is to use a single stator sandwiched between two rotors. One such design has produced peak power of 15 kW/kg, sustained power around 7.5 kW/kg. This yokeless axial flux motor offers a shorter flux path, keeping the magnets further from the axis. The design allows zero winding overhang; 100 percent of the windings are active. This is enhanced with the use of rectangular-crosssection.

Electric motor. copper wire. The motors can be stacked to work in parallel. Instabilities are minimized by ensuring that the two rotor discs put equal and opposing forces onto the stator disc. The rotors are connected directly to one another via a shaft ring, cancelling out the magnetic forces.Magnax motors range in size from 0.15-5.4 (m) in diameter.## Servo motor.A servo motor is a motor that is used within a position-control or speed-control feedback system. Servomotors are used in applications such as machine tools, pen plotters, and other process systems. Motors intended for use in a servomechanism must have predictable characteristics for.

Electric motor. speed, torque, and power. The speed/torque curve is important and is high ratio for a servo motor. Dynamic response characteristics such as winding inductance and rotor inertia are important; these factors limit performance. Large, powerful, but slow-responding servo loops may use conventional AC or DC motors and drive systems with position or speed feedback. As dynamic response requirements increase, more specialized motor designs such as coreless motors are used. AC motors' superior power density and acceleration characteristics tends to favor permanent magnet synchronous, BLDC, induction, and SRM drive approaches.A servo system differs from some stepper motor applications in that position.

Electric motor. feedback is continuous while the motor is running. A stepper system inherently operates open-loop—relying on the motor not to "miss steps" for short term accuracy—with any feedback such as a "home" switch or position encoder external to the motor system.## Stepper motor.Stepper motors are typically used to provide precise rotations. An internal rotor containing permanent magnets or a magnetically soft rotor with salient poles is controlled by a set of electronically switched external magnets. A stepper motor may also be thought of as a cross between a DC electric motor and a rotary solenoid. As each coil is energized in.

Electric motor. turn, the rotor aligns itself with the magnetic field produced by the energized field winding. Unlike a synchronous motor, the stepper motor may not rotate continuously; instead, it moves in steps—starting and then stopping—advancing from one position to the next as field windings are energized and de-energized in sequence. Depending on the sequence, the rotor may turn forwards or backwards, and it may change direction, stop, speed up or slow down at any time.Simple stepper motor drivers entirely energize or entirely de-energize the field windings, leading the rotor to "cog" to a limited number of positions. Microstepping drivers can proportionally.

Electric motor. made them uncompetitive—thus newer hard disk drives use voice coil-based head actuator systems. (The term "voice coil" in this connection is historic; it refers to the structure in a cone-type loudspeaker.)Stepper motors are often used in computer printers, optical scanners, and digital photocopiers to move the active element, the print head carriage (inkjet printers), and the platen or feed rollers.So-called quartz analog wristwatches contain the smallest commonplace stepping motors; they have one coil, draw little power, and have a permanent magnet rotor. The same kind of motor drives battery-powered quartz clocks. Some of these watches, such as chronographs, contain more.

Electric motor. 1978 era HP 7225A pen plotter used two linear stepper motors to move the pen along the X and Y axes.## Electromagnetism.## Force and torque.An electric motor converts electrical energy to mechanical energy through the force between two opposed magnetic fields. At least one of the two magnetic fields must be created by an electromagnet through the magnetic field caused by an electrical current.The force between a current formula_1 in a conductor of length formula_2 perpendicular to a magnetic field formula_3 may be calculated using the Lorentz force law: formula_4Note: X denotes vector cross product. The most general approaches to.

Electric motor. resistance Ir2 – square of current induced in the rotor s – motor slip; i.e., difference between synchronous speed and slip speed, which provides the relative movement needed for current induction in the rotor.## Back EMF.The movement of armature windings of a direct-current or universal motor through a magnetic field, induce a voltage in them. This voltage tends to oppose the motor supply voltage and so is called "back electromotive force (EMF)". The voltage is proportional to the running speed of the motor. The back EMF of the motor, plus the voltage drop across the winding internal resistance and brushes,.

Electric motor. enacted legislation to encourage the manufacture and use of higher-efficiency motors. Electric motors have efficiencies ranging from at least 15% for shaded pole motors, up to 98% for permanent magnet motors, with efficiency also dependent on load. Peak efficiency is usually at 75% of the rated load. So (as an example) a 10 HP motor is most efficient when driving a load that requires 7.5 HP. Efficiency also depends on motor size; larger motors tend to be more efficient. Some motors can not operate continually for more than a specified period of time (e.g. for more than an hour per.

Electric motor. run)## Goodness factor.Eric Laithwaite proposed a metric to determine the 'goodness' of an electric motor: formula_21Where: formula_22 is the goodness factor (factors above 1 are likely to be efficient) formula_23 are the cross sectional areas of the magnetic and electric circuit formula_24 are the lengths of the magnetic and electric circuits formula_25 is the permeability of the core formula_20 is the angular frequency the motor is driven atFrom this, he showed that the most efficient motors are likely to have relatively large magnetic poles. However, the equation only directly relates to non PM motors.## Performance parameters.## Torque.Electromagnetic motors derive torque.

Electric motor. from the vector product of the interacting fields. Calculating torque requires knowledge of the fields in the air gap. Once these have been established, the torque is the integral of all the force vectors multiplied by the vector's radius. The current flowing in the winding produces the fields. For a motor using a magnetic material the field is not proportional to the current.A figure relating the current to the torque can inform motor selection. The maximum torque for a motor depends on the maximum current, absent thermal considerations.When optimally designed within a given core saturation constraint and for a given.

Electric motor. active current (i.e., torque current), voltage, pole-pair number, excitation frequency (i.e., synchronous speed), and air-gap flux density, all categories of electric motors/generators exhibit virtually the same maximum continuous shaft torque (i.e., operating torque) within a given air-gap area with winding slots and back-iron depth, which determines the physical size of electromagnetic core. Some applications require bursts of torque beyond the maximum, such as bursts to accelerate an electric vehicle from standstill. Always limited by magnetic core saturation or safe operating temperature rise and voltage, the capacity for torque bursts beyond the maximum differs significantly across motor/generator types.Electric machines without a.

Electric motor. transformer circuit topology, such as that of WRSMs or PMSMs, cannot provide torque bursts without saturating the magnetic core. At that point, additional current cannot increase torque. Furthermore, the permanent magnet assembly of PMSMs can be irreparably damaged.Electric machines with a transformer circuit topology, such as induction machines, induction doubly-fed electric machines, and induction or synchronous wound-rotor doubly-fed (WRDF) machines, permit torque bursts because the EMF-induced active current on either side of the transformer oppose each other and thus contribute nothing to the transformer coupled magnetic core flux density, avoiding core saturation.Electric machines that rely on induction or asynchronous principles.

Electric motor. the air-gap area and the back-iron depth, which are determined by the power rating of the armature winding set, the speed of the machine, and the achievable air-gap flux density before core saturation. Despite the high coercivity of neodymium or samarium-cobalt permanent magnets, continuous torque density is virtually the same amongst electric machines with optimally designed armature winding sets. Continuous torque density relates to method of cooling and permissible operation period before destruction by overheating of windings or permanent magnet damage.Other sources state that various e-machine topologies have differing torque density. One source shows the following:where—specific torque density is normalized.

Electric motor. to 1.0 for the surface permanent magnet (SPM)—brushless ac, 180° current conduction.Torque density is approximately four times greater for liquid cooled motors, compared to those which are air cooled.A source comparing direct current, induction motors (IM), PMSM and SRM showed:Another source notes that PMSM up to 1 MW have considerably higher torque density than induction machines.## Continuous power density.The continuous power density is determined by the product of the continuous torque density and the constant torque speed range. Electric motors can achieve densities of up to 20KW/KG, meaning 20 Kilowatts of output power per kilogram.## Acoustic noise and vibrations.Acoustic noise.

Electric motor. and vibrations are usually classified in three sources: mechanical sources (e.g. due to bearings) aerodynamic sources (e.g. due to shaft-mounted fans) magnetic sources (e.g. due to magnetic forces such as Maxwell and magnetostriction forces acting on stator and rotor structures)The latter source, which can be responsible for the "whining noise" of electric motors, is called electromagnetically induced acoustic noise.## Standards.The following are major design, manufacturing, and testing standards covering electric motors: American Petroleum Institute: API 541 Form-Wound Squirrel Cage Induction Motors – 375 kW (500 Horsepower) and Larger American Petroleum Institute: API 546 Brushless Synchronous Machines – 500 kVA and.

Electric motor. 60072 Dimensions and output series for rotating electrical machines National Electrical Manufacturers Association: MG-1 Motors and Generators Underwriters Laboratories: UL 1004 – Standard for Electric Motors Indian Standard: IS:12615-2018 – Line Operated Three Phase a.c. Motors (IE CODE) “Efficiency Classes and Performance Specification” (Third Revision)## Non-magnetic motors.An electrostatic motor is based on the attraction and repulsion of electric charge. Usually, electrostatic motors are the dual of conventional coil-based motors. They typically require a high-voltage power supply, although small motors employ lower voltages. Conventional electric motors instead employ magnetic attraction and repulsion, and require high current at low voltages. In the.

Electric motor. produces acoustic or ultrasonic vibrations to produce linear or rotary motion. In one mechanism, the elongation in a single plane is used to make a series of stretches and position holds, similar to the way a caterpillar moves.An electrically powered spacecraft propulsion system uses electric motor technology to propel spacecraft in outer space. Most systems are based on electrically accelerating propellant to high speed, while some systems are based on electrodynamic tethers principles of propulsion to the magnetosphere. Electric generator Regenerative brake Goodness factor Motor capacitor Traction motor Motor controller Houston, Edwin J.; Kennelly, Arthur, "Recent Types of Dynamo-Electric Machinery",.


Question: What is the street address of this building?

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30 St Mary Axe. 30 St Mary Axe (previously known as the Swiss Re Building and informally known as the Gherkin) is a commercial skyscraper in London's primary financial district, the City of London. It was completed in December 2003 and opened in April 2004. With 41 floors, it is 180 (m) tall and stands on the sites of the former Baltic Exchange and Chamber of Shipping, which were extensively damaged in 1992 in the Baltic Exchange bombing by a device placed by the Provisional IRA in St Mary Axe, a narrow street leading north from Leadenhall Street.After plans to build the 92-storey Millennium.

30 St Mary Axe. Tower were dropped, 30 St Mary Axe was designed by Norman Foster and the Arup Group. It was erected by Skanska; construction started in 2001.The building has become a recognisable landmark of London, and it is one of the city's most widely recognised examples of contemporary architecture. It won the 2003 Emporis Skyscraper Award.## Site and early plans.The building stands on the site of the former Baltic Exchange (24–28 St Mary Axe), which was the headquarters of a global marketplace for shipping freight contracts and soft commodities, and the Chamber of Shipping (30–32 St Mary Axe). The tower's topmost panoramic.

30 St Mary Axe. dome, known as the "lens", recalls the iconic glass dome that covered part of the ground floor of the Baltic Exchange and much of which is now displayed at the National Maritime Museum. "The Gherkin" nickname was applied to the current building at least as early as 1999, referring to the plan's highly unorthodox layout and appearance.On 10 April 1992, the Provisional IRA detonated a bomb close to the Baltic Exchange, causing extensive damage to the historic building and neighbouring structures. The United Kingdom government's statutory adviser on the historic environment, English Heritage, and the City of London's governing body,.

30 St Mary Axe. the City of London Corporation, were keen that any redevelopment must restore the Baltic Exchange's old façade onto St Mary Axe. The Exchange Hall was a celebrated fixture of the shipping market.English Heritage then discovered that the damage was far more severe than initially thought, and they stopped insisting on full restoration, albeit over the objections of architectural conservationists. The Baltic Exchange and the Chamber of Shipping sold the land to Trafalgar House in 1995. Most of the remaining structures on the Baltic Exchange site were then carefully dismantled, and the interior of Exchange Hall and the façade were preserved,.

30 St Mary Axe. hoping for a reconstruction of the building in the future. The salvaged material was eventually sold for £800,000 and moved to Tallinn, Estonia, where it awaits reconstruction as the centrepiece of the city's commercial sector.In 1996, Trafalgar House submitted plans for the London Millennium Tower, a 386 (m) building with more than 140000 (sqm) of office space, apartments, shops, restaurants and gardens. This plan was dropped after objections that it was totally out-of-scale in the City of London, and anticipated disruption to flight paths for both London City and London Heathrow airports; the revised plan for a lower tower was.

30 St Mary Axe. accepted.## Planning process.John Prescott, the Deputy Prime Minister, granted planning permission on 23 August 2000 to construct a building on the site, which would be much larger than the old Exchange. The site needed development, was not on any of the "sight lines" (planning guidance requires that new buildings do not obstruct or detract from the view of St Paul's Cathedral dome when viewed from a number of locations around London), and had housed the Baltic Exchange.The plan for the site was to reconstruct the Baltic Exchange. GMW Architects proposed a new rectangular building surrounding a restored exchange: it would.

30 St Mary Axe. have the type of large floor plan that banks liked. Eventually, the planners realised that the exchange was not recoverable, forcing them to relax their building constraints; they hinted that an "architecturally significant" building might obtain a favourable reception from City authorities. This gave the architect a free hand in the design. The building was designed according to the client's needs, rather than for the needs of a large, capital-efficient, money-making building.The new building's low-level plan satisfied the planning authority's desire to maintain London's traditional streetscape, with its narrow streets. The massing of the tower was not too imposing. Like.

30 St Mary Axe. Barclays' former city headquarters in Lombard Street, the idea was that the passer-by in neighbouring streets would be nearly oblivious to the tower's existence until directly underneath it.## Design and construction.The building was constructed by Skanska, completed in December 2003 and opened on 28 April 2004. The primary occupant of the building is Swiss Re, a global reinsurance company, which had the building commissioned as the head office for its UK operation. The tower is thus sometimes known as the Swiss Re Building, although this name has never been official and was never in popular usage anyway, unlike the Gherkin.

30 St Mary Axe. moniker.The building uses energy-saving methods which allow it to use only half the power that a similar tower would typically consume. Gaps in each floor create six shafts that serve as a natural ventilation system for the entire building, even though required firebreaks on every sixth floor interrupt the "chimney". The shafts create a giant double glazing effect; air is sandwiched between two layers of glazing and insulates the office space inside.Architects promote double glazing in residential houses, which avoids the inefficient convection of heat across the relatively narrow gap between the panes, but the tower exploits this effect. The.

30 St Mary Axe. shafts pull warm air out of the building during the summer and warm the building in the winter using passive solar heating. The shafts also allow sunlight to pass through the building, making the work environment more pleasing, and keeping the lighting costs down.The primary methods for controlling wind-excited sways are to increase the stiffness, or increase damping with tuned/active mass dampers. To a design by Arup, its fully triangulated perimeter structure makes the building rigid enough without any extra reinforcements. Despite its overall curved glass shape, there is only one piece of curved glass on the building, the lens-shaped.

30 St Mary Axe. cap at the apex.On the building's top level (the 40th floor), there is a bar for tenants and their guests, with a panoramic view of London. A restaurant operates on the 39th floor, and private dining rooms on the 38th. Most buildings have extensive lift equipment on the roof of the building, but this was not possible for the Gherkin, since a bar had been planned for the 40th floor. The architects dealt with this by having the main lift only reach the 34th floor, with a separate push-from-below lift to the 39th floor. There is a marble stairwell and.

30 St Mary Axe. a disabled persons' lift, which leads the visitor up to the bar in the dome.The building is visible over long distances: From the north, for instance, it can be seen from the M11 motorway, some 32 (km) away, while to the west it can be seen from the statue of George III in Windsor Great Park.## After completion.In April 2005, a glass panel two thirds up the tower fell to the plaza beneath. The plaza was sealed off, but the building remained open. A temporary covered walkway, extending across the plaza to the building's reception, was erected to protect visitors.

30 St Mary Axe. Engineers examined the other 744 glass panels on the building. The cost of repair was covered by main contractor Skanska and curtain-wall supplier Schmidlin (now called Schmidlin-TSK AG). The open-floor ventilation system did not operate as designed due to tenants adding glass partitions to increase security.Since its completion, the building has won a number of awards for architecture. In October 2004, the architect was awarded the 2004 Stirling Prize. For the first time in the prize's history, the judges were unanimous. In December 2005, a survey of the world's largest firms of architects published in "2006 BD World Architecture 200.

30 St Mary Axe. voted the tower as the most admired new building in the world. However, Ken Shuttleworth, who worked for Foster + Partners on the design of the building, said in 2011 that he believed the style was now out-moded: "I was looking at the glass all around and [thought], 'Why on earth did we do that?' Now we would do things differently". The building appeared in recent films such as "Harry Potter and the Half Blood Prince", "A Good Year", "Basic Instinct 2", and "Match Point" and, rechristened the "Spirit of London", became the spaceship centrepiece of Keith Mansfield's 2008 novel.

30 St Mary Axe. "Johnny Mackintosh and the Spirit of London".In September 2006, the building was put up for sale with a price tag of £600 million. Potential buyers included British Land, Land Securities, Prudential, ING, and the Abu Dhabi royal family. On 21 February 2007, IVG Immobilien AG and UK investment firm Evans Randall completed their joint purchase of the building for £630 million, making it Britain's most expensive office building. Swiss Re made a gain of more than £300 million from the sale. The new owners are seeking compensation from four of their former managers on the deal, in which about £620.

30 St Mary Axe. million was paid for a building with a build cost of about £200 million, giving the previous owners a clear £300 million profit.Since February 2010, Sky News has broadcast its flagship business programme, "Jeff Randall Live", from a studio in the building. The top two floors of the tower have been available since at least 2015 for private hire for events.Deloitte announced in April 2014 that the building was again being put up for sale, with an expected price of £550 million. The current owners could not afford to make loan repayments, citing differences in the value of the multi-currency.

30 St Mary Axe. loan and the British pound, high interest rates and general financing structure. In November 2014, the Gherkin was purchased for £700 million by the Safra Group, controlled by the Brazilian billionaire Joseph Safra. Landmarks of London Diagrid List of tallest buildings and structures in London Mathematics and architecture Phallic architecture, a list of similarly shaped buildings that includes 30 St Mary Axe Norman Foster's site about the project.


Question: What is the closest upper taxonomy of this plant?

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Phalaenopsis amabilis. Phalaenopsis amabilis, commonly known as the moon orchid or moth orchid in India and as in Indonesia, is a species of flowering plant in the orchid family Orchidaceae. It is native to the East Indies and Australia, and widely cultivated as a decorative houseplant. It is an epiphytic or lithophytic herb with long, thick roots, between two and eight thick, fleshy leaves with their bases hiding the stem and nearly flat, white, long-lasting flowers on a branching flowering stem with up to ten flowers on each branch.## Description."Phalaenopsis amabilis" is an epiphytic, rarely lithophytic herb with coarse, flattened, branching roots.

Phalaenopsis amabilis. up to 1 (m) long and usually 3-4 (mm) wide. Between two and eight fleshy, dark green, oblong to egg-shaped leaves 150-300 (mm) long and 40-70 (mm) wide are arranged in two rows along the stem. The stem is 100-300 (mm) but hidden by the leaf bases. The flowers are arranged on a stiff, arching flowering stem 300-750 (mm) long emerging from a leaf base, with a few branches near the tip. Each branch of the flowering stem bears between two and ten white, long-lasting flowers on a stalk (including the ovary) 20-35 (mm) long. Each flower is 60-70 (mm).

Phalaenopsis amabilis. long and 50-80 (mm) wide with the sepals and petals free from and spreading widely apart from each other. The sepals are egg-shaped, 30-40 (mm) long and about 20 (mm) wide and the petals broadly egg-shaped to almost square, 30-40 (mm) long and wide. The labellum is white with yellow and reddish markings, about 25 (mm) long with three lobes. The side lobes curve upwards and partly surround the column. The middle lobe is cross-shaped with a rounded tip and two long, thread-like wavy arms. There is a large yellow callus near the base of the labellum. Flowering time depends.

Phalaenopsis amabilis. on distribution but occurs from April to December in New Guinea.## Taxonomy and naming.In 1750, before the system of binomial nomenclature had been formalised by Carl Linnaeus, Georg Eberhard Rumphius had collected the species on Ambon Island and described it as "Angraecum albus majus" in his book "Herbarium Amboinense". Linnaeus described it in "Species Plantarum" giving it the binomial "Epidendrum amabile" and in 1825, Carl Ludwig Blume changed the name to "Phalaenopsis amabilis". The specific epithet ("amabilis") is a Latin word meaning "lovely".SubspeciesThere are three subspecies of "P. amabilis" recognised by the World Checklist of Selected Plant Families: "Phalaenopsis amabilis.

Phalaenopsis amabilis. subsp. "amabilis" which is the most widespread subspecies and is distinguished from the other subspecies by its cross-shaped labellum middle lobe, the base of which has yellow and red markings; "Phalaenopsis amabilis" subsp. "moluccana" which has a linear-oblong labellum middle lobe, with a slight dilation at its base where there are yellow and white markings; "Phalaenopsis amabilis" subsp. "rosenstromii" which has a relatively short, triangular labellum middle lobe where the markings are yellow;In Australia, subspecies "rosenstromii" is recognised as "Phalaenopsis rosenstromii" by the Australian Plant Census. It was discovered by Gus Rosenstrom "on trees, high from the ground, Daintree River.

Phalaenopsis amabilis. and was first formally described by Frederick Manson Bailey who published the description in the "Queensland Agricultural Journal".## Distribution and habitat."Phalaenopsis amabilis" usually grows on trees, rarely on rocks, in rainforest where the humidity is high but there is free air movement. Subspecies "amabilis" has the widest distribution and occurs from Palawan in the southern Philippines to Borneo, Sumatra and Java. Subspecies "moluccana" is separated from subspecies "amabilis" by the Wallace Line and is found in Sulawesi as well as Seram and Buru in the Moluccas. Subspecies "rosenstromii" is native to New Guinea and Australia where it occurs on the.

Phalaenopsis amabilis. Cape York Peninsula between the Iron Range and the Paluma Range National Park. It is separated from subspecies "moluccana" by Lydekker's Line.## Conservation."Phalaenopsis rosenstromii" was listed as "endangered" under the Australian Government Environment Protection and Biodiversity Conservation Act 1999 but the listing was updated to "Phalaenopsis amabilis" subsp. "rosenstromii" in May 2016. The main threat to the subspecies in Australia is illegal collecting.## Use in horticulture."Phalaenopsis amabilis" is reported to be very easy to grow as a houseplant, as long as attention is paid to a correct feeding and watering regimen. It thrives in a domestic temperature range of 17-22.

Phalaenopsis amabilis. (C), in bright indirect light such as that offered by an east- or west-facing window. Specialist orchid compost and feed is widely available. Species and cultivars in the genus "Phalaenopsis" are recommended for beginners.In cultivation in the United Kingdom, "Phalaenopsis amabilis" has gained the Royal Horticultural Society’s Award of Garden Merit.## Importance."Phalaenopsis amabilis" ( meaning "moon orchid") is one of the three national flowers in Indonesia, the other two being the sambac jasmine and padma raksasa. It was officially recognized as national "flower of charm" () in Presidential Decree No. 4 in 1993.The orchid is also the official flower of.

Phalaenopsis amabilis. Kota Kinabalu, the capital city of Sabah, Malaysia.


Question: Which artist inspired this object?

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Stereophonic sound. with minimal phase difference between channels.## History.## Early work.Clément Ader demonstrated the first two-channel audio system in Paris in 1881, with a series of telephone transmitters connected from the stage of the Paris Opera to a suite of rooms at the Paris Electrical Exhibition, where listeners could hear a live transmission of performances through receivers for each ear. "Scientific American" reported:This two-channel telephonic process was commercialized in France from 1890 to 1932 as the Théâtrophone, and in England from 1895 to 1925 as the Electrophone. Both were services available by coin-operated receivers at hotels and cafés, or by subscription to.


Question: What is the area in square kilometre occupied by this place?

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Mount Roraima. length of more than 10 kilometers, a maximum width of 5 kilometers, an area of about 33 to 50 square kilometers, an altitude of more than 2200 meters, and an average altitude of 2600–2700 meters. The plateau is a pseudo-karst surface etched by heavy rainfall. The highest point is 2810 meters above sea level, located at the southern end of the plateau and the highest point in the state of Bolivar, 8.25 kilometers north of the summit is another high point with an altitude of 2,772 meters, which is the highest point in Guyana. In the northern part of the.

Mount Roraima. plateau is the landmark of the border between Brazil, Venezuela and Guyana, with an altitude of 2734 meters.Due to its high altitude and proximity to the equator, Mount Roraima has a constant average annual temperature between 20 and 22 °C and annual rainfall of more than 1,500 mm, with 1,800 to 3,000 mm in parts of the rainy season from April to November. The climatic conditions at the top of the mountain differ significantly from its base, the high cloudiness in the region is associated with the prevailing northeasterly and southeasterly winds, and the relative humidity of the air remains.


Question: On what date did this facility officially open?

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La Recoleta Cemetery. () and a church, Our Lady of Pilar ("), built in 1732.The order was disbanded in 1822, and the garden of the convent was converted into the first public cemetery in Buenos Aires. Inaugurated on 17 November of the same year under the name of " (Northern Cemetery), those responsible for its creation were the then-Governor Martin Rodríguez, who would be eventually buried in the cemetery, and government minister Bernardino Rivadavia.The 1822 layout was done by French civil engineer Próspero Catelin, who also designed the current facade of the Buenos Aires Metropolitan Cathedral. The cemetery was last remodeled in 1881,.


Question: What is the street address of this building?

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Schaloen Castle. Schaloen Castle is a castle in Oud-Valkenburg in the South Limburg municipality of Valkenburg aan de Geul in The Netherlands. The castle is a national monument . Together with the Johannes de Doperkerk and Genhoes, it is part of the protected face of Oud Valkenburg. It is also part of the Buitengoed Geul & Maas. ## Location.The castle is located in the meadow of the river Geul near the village of Oud-Valkenburg. The canal around the house is fed with water from the Molenbeek, a Geul branch that formed the main branch of the Geul in the 16th century. The.

Schaloen Castle. castle is located north of the Oud-Valkenburgerweg, the through road from Valkenburg to Schin op Geul.At the end of a driveway, one arrives at a watermill and then, through a gatehouse, on a square where the castle and forecourt are located. The marlstone Schaloensmolen from 1699 was originally a ban mill, but nowadays only serves as a demonstration mill. In the castle garden, the local IVN association has created a Limburg botanical garden, which is open to the public.## Building history.The rectangular castle is built of marl and originally dates from the 12th century. Then it was a bit smaller.

Schaloen Castle. and 1457 the castle was owned by his son Reinier IV van Hulsberg van Schaloen called Sjaloen, according to the archives in Maastricht and Tongeren . His son Librecht van Hulsberg was his successor and after his death in 1530 his brother Johan van Hulsberg was well served. His sonReinier V van Hulsberg van Schaloen became the next lord of the castle. This was succeeded by his brother Gerard van Hulsberg , who acquired the rights to the manor of Oud-Valkenburg in 1605 . The family lived at Huys de Dohm in Welten. During the Spanish-Dutch war in the sixteenth.


Question: Which country does this object come from?

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Welsh Corgi. the Pembroke has been attributed to the influx of dogs alongside Flemish weavers from around the 10th century, while the Cardigan is attributed to the dogs brought with Norse settlers, in particular a common ancestor of the Swedish Vallhund. The Pembroke is the more popular of the two, yet still appears on The Kennel Club's vulnerable dog breeds of the United Kingdom list. The Pembroke Welsh Corgi gained in popularity because the Queen has personally owned more than 30 Pembrokes or Corgi-Dachshund crosses, known as dorgis. == History == Pembrokeshire and Cardiganshire are adjoining historical agricultural counties in South West.

Welsh Corgi. to choose whichever they felt was the most appropriate. The first dog to be named Best in Show at an open conformation show was Ch. Bowhit Pivot.Cardigan Welsh Corgis continued to be rarer than Pembrokes, with only 11 registrations made in 1940. Both breeds survived the Second World War, although the Cardigans registered with the Kennel Club numbered only 61 by the end of the war. Pembrokes became very popular during the post war years in the United Kingdom; in 1953 it was ranked as the fourth most popular breed by the Kennel Club, behind the English Cocker Spaniel, the.

Welsh Corgi. Welsh Corgi club was formed in 1937, and the first show was held at Geraldine Rockefeller Dodge's Giralda Farms in New Jersey. Following the Second World War, there were imports from the United Kingdom, including Rozavel Uncle Sam which dominated the show circuit for Corgis. In 1949, he became the first Pembroke winner of Best in Show at an open conformation show in the United States. By 1998, the Pembroke Welsh Corgi had become the 37th most popular breed of dog in the United States. A pair of Cardigan Welsh Corgis were imported to the US in 1931, but the.

Welsh Corgi. led to an increase in popularity for the breed within the United States. A theatrical adaptation took place of Welsh author Roald Dahl's The BFG which toured the UK in 1991 required several different Corgis to perform on stage as those of Queen Elizabeth. The Queen's Corgi is a Belgian animated film depicting the Queen's Corgis. In the anime Cowboy Bebop, the crew has a super-intelligent Pembroke Welsh Corgi, Ein, on their ship.The Top Shelf graphic novel Korgi plays on the folklore tradition of the Corgi as a faerie draft animal. It features the "Mollies" (fairy-like beings) who live in.


Question: What is the closest parent taxonomy of this plant?

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Zealandia pustulata. Zealandia pustulata, synonym Microsorum pustulatum, (kangaroo fern or hound's tongue, in Māori: kōwaowao, pāraharaha) is a species of fern within the family Polypodiaceae.## Distribution.This species occurs widely in New Zealand and also in Queensland, New South Wales, Victoria and Tasmania in Australia. An example occurrence in the North Island of New Zealand is in the Hamilton Ecological District where it is associated with a number of other ferns including "Icarus filiforme" and "Lomaria discolor".Phlebodium aureum, similar looking fernMicrosorum punctatum, another similar looking species C. Michael Hogan. 2009. "Crown Fern: Blechnum discolor", Globaltwitcher.com, ed. N. Stromberg D.J. Mabberley. 2008. "Mabberley's plant-book:.


Question: How long in metre is the longest span of this island?

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Confederation Bridge. ship traffic. The bridge rests on 62 piers, of which the 44 main piers are 250 (m) apart. The bridge is 11 (m) wide.The speed limit on the bridge is 80 (km/h) but can vary with wind and weather conditions. When travelling at the speed limit, it takes about 12 minutes to cross the bridge.## Tolls.Tolls apply only when leaving Prince Edward Island (when travelling westbound). The toll rates are $50.25 for a two-axle automobile and $8.50 for each additional axle. Motorcycles are charged $20.00. While pedestrians and cyclists are not permitted to cross the bridge, a shuttle service is.


Question: Which place is this bird endemic to?

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Caspian tern. Europe (mainly around the Baltic Sea and Black Sea), Asia, Africa, and Australasia (Australia and New Zealand). North American birds migrate to southern coasts, the West Indies and northernmost South America. European and Asian birds spend the non-breeding season in the Old World tropics. African and Australasian birds are resident or disperse over short distances.In 2016, a nest of the Caspian tern was found in the Cape Krusenstern National Monument in northwestern Alaska, 1,000 miles further north than any previous sighting. This development was part of a general trend in Alaska of species moving to the north, a tendency ascribed.


Question: Who is the director of this building?

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Strapless. Strapless is a 1989 film written and directed by David Hare.## Plot summary.An expatriate American doctor in London allows herself to lighten up when her freewheeling younger sister and a mysterious man enter her life. Her inhibitions released, the beautiful doctor learns that freedom has its own price.Blair Brown – Dr. Lillian HempelBruno Ganz – Raymond ForbesBridget Fonda – Amy HempelAlan Howard – Mr. CooperMichael Gough – Douglas BrodieHugh Laurie – ColinDana Gillespie – Julie KovagoSpencer Leigh – HusAlexandra Pigg - Helen## Release.After the film's May 1990 U.S. theatrical release, it was released on videocassette in the United States by.


Question: What is the source that produces this food?

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Sunflower seed. The sunflower seed is the seed of the sunflower ("Helianthus annuus"). There are three types of commonly used sunflower seeds: linoleic (most common), high oleic, and sunflower oil seeds. Each variety has its own unique levels of monounsaturated, saturated, and polyunsaturated fats. The information in this article refers mainly to the linoleic variety.For commercial purposes, sunflower seeds are usually classified by the pattern on their husks. If the husk is solid black, the seeds are called black oil sunflower seeds. The crops may be referred to as oilseed sunflower crops. These seeds are usually pressed to extract their oil. Striped.

Sunflower seed. sunflower seeds are primarily eaten as a snack food; as a result, they may be called confectionery sunflower seeds.The term "sunflower seed" is actually a misnomer when applied to the seed in its pericarp (hull). Botanically speaking, it is a cypsela. When dehulled, the edible remainder is called the sunflower kernel or heart.## Production.In 2020, global production of sunflower seeds was 50 million tonnes, led by Russia and Ukraine with 53% of the world total combined (table). Argentina, China, and Romania also contributed significant volumes.## Usage.Sunflower seeds are more commonly eaten as a snack than as part of a meal.

Sunflower seed. They can also be used as garnishes or ingredients in various recipes. The seeds may be sold as in-shell seeds or dehulled kernels. The seeds can also be sprouted and eaten in salads.When in-shell seeds are processed, they are first dried. Afterwards, they may also be roasted or dusted with salt or flour for the preservation of flavor.Sunflower seeds sold by the bag are either eaten plain, salted (sometimes called 'plain') or with flavoring added by the manufacturer. Flavor examples include barbecue, pickle, hot sauce, bacon, ranch, and nacho cheese.In-shell, sunflower seeds are particularly popular in Mediterranean, Eastern European, and.

Sunflower seed. Asian countries where they can be bought freshly roasted and are commonly consumed as street food, the hull being cracked open with the teeth and spat out, while in many countries, they can be bought freshly packed in various roasted flavors. In the United States, they are commonly eaten by baseball players as an alternative to chewing tobacco.Mechanically dehulled kernels are sold raw or roasted and are sometimes added to bread and other baked goods for their flavor. Sunflower seed brittle is produced by embedding the kernels in hard sugar candy. In Belarus, Russia, Ukraine and Romania, roasted ground seeds.

Sunflower seed. are used to make a type of halva. Sunflower butter is similar to peanut butter, but uses sunflower seeds instead of peanuts, and is a common substitute in schools for children with nut allergies. Sunflower seeds are also used as food for pets and wild birds.## Nutrition.In a 100-gram serving, dried whole sunflower seeds provide 584 calories and are composed of 5% water, 20% carbohydrates, 51% total fat and 21% protein (table). The seeds are a rich source (20% or higher of the Daily Value, DV) of protein (42% DV), dietary fiber (36% DV), many B vitamins (23–129% DV) and.

Sunflower seed. vitamin E (234% DV). The seeds also contain high levels of dietary minerals, including magnesium, manganese, phosphorus, iron and zinc (40–94% DV).Half of a 100-gram serving is fat, mainly monounsaturated and polyunsaturated fats, principally linoleic acid. Additionally, the seeds contain phytosterols which may contribute toward lower levels of blood cholesterol.## Pressed oil.Over the decades, sunflower oil has become popular worldwide. The oil may be used as is, or may be processed into polyunsaturated margarines. The oil is typically extracted by applying great pressure to the sunflower seeds and collecting the oil. The protein-rich cake remaining after the seeds have been.

Sunflower seed. processed for oil is used as livestock feed.The original sunflower oil (linoleic sunflower oil) is high in polyunsaturated fatty acids (about 68% linoleic acid) and low in saturated fats, such as palmitic acid and stearic acid. However, various hybrids have been developed to alter the fatty acid profile of the crop for various purposes.## Hulls.The hulls, or shells, mostly composed of cellulose, decompose slowly and may be burned as biomass fuel. Sunflower hulls of the cultivated sunflower ("Helianthus annuus") contain allelopathic compounds which are toxic to grasses and the vast majority of cultivated garden plants. Only a small number of.

Sunflower seed. garden plants, such as day lilies, are unaffected by the allelopathic compounds found in sunflower hulls. List of edible seeds David Sunflower Seeds.


Question: What is the closest upper taxonomy of this bird?

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Loggerhead shrike. The loggerhead shrike ("Lanius ludovicianus") is a passerine bird in the family Laniidae. It is the only member of the shrike family endemic to North America; the related northern shrike ("L. borealis") occurs north of its range, however it is also found in Siberia. It is nicknamed the butcherbird after its carnivorous tendencies, as it consumes prey such as amphibians, insects, lizards, small mammals and small birds, and some prey end up displayed and stored at a site, for example in a tree. Due to its small size and weak talons, this predatory bird relies on impaling its prey upon.

Loggerhead shrike. thorns or barbed wire for facilitated consumption. The numbers of loggerhead shrike have significantly decreased in recent years, especially in Midwestern, New England and Mid-Atlantic areas.## Taxonomy.In 1760 the French zoologist Mathurin Jacques Brisson included a description of the loggerhead shrike in his "Ornithologie" based on a specimen collected in Louisiana in the United States. He used the French name "La pie-griesche de la Louisiane" and the Latin "Lanius ludovicianus". Although Brisson coined Latin names, these do not usually conform to the binomial system and are not recognised by the International Commission on Zoological Nomenclature. When in 1766 the Swedish.

Loggerhead shrike. naturalist Carl Linnaeus updated his "Systema Naturae" for the twelfth edition, he added 240 species that had been previously described by Brisson. One of these was the loggerhead shrike. Linnaeus included a brief description, adopted the binomial name "Lanius ludovicianus" (identical to Brisson's Latin name) and cited Brisson's work. The specific name "ludovic" is Late Latin for "Louis" and the epithet “-ianus” is to describe something being of another or possessed by it. When translated, its scientific name means something alongside the lines of “Louis’ butcher”. “Loggerhead,” a similar word to “blockhead,” refers to the unusually large head to body.

Loggerhead shrike. that the wing-chord-to-tail-length ratio was an important indicator for distinguishing between subspecies. "Lanius ludovicianus migrans", found in eastern North America, can be distinguished from the western subspecies, "L. l. excubitorides" by wing length, tail length, and colour. "L. l. migrans" have a paler forehead than the top of the head.According to Mundy et al.’s 1997 study, there is a substantial genetic difference between the island subspecies "L. l. mearnsi" and the mainland subspecies "L. l. gambeli" due to a gene flow barrier between the two species.## Description.The loggerhead shrike is a medium-sized passerine. "Loggerhead" refers to the relatively large size.

Loggerhead shrike. Account – Cornell Lab of OrnithologyLoggerhead Shrike – "Lanius ludovicianus" – USGS Patuxent Bird Identification InfoCenterStamps (for Mexico) with Range Map at bird-stamps.org Recording of its call.


Question: Which body of water is this place located in or next to?

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Athirappilly Falls. Athirappilly Falls, is situated in Athirappilly Panchayat in Chalakudy Taluk of Thrissur District in Kerala, India on the Chalakudy River, which originates from the upper reaches of the Western Ghats at the entrance to the Sholayar ranges. It is the largest waterfall in Kerala, which stands tall at 80 feet. Just a short drive from Athirappilly to the Vazhachal falls, which is close to dense green forests that are home to many endangered and endemic species of flora and fauna.There is another waterfall on the way from Athirappilly to Vazhachal Falls, in close proximity to the road, which is locally.

Athirappilly Falls. called "Charpa Falls". Athirappilly Falls is the largest waterfall in Kerala and is nicknamed "The Niagara of South India".Controversy about a state-proposed hydroelectric dam on the Chalakudy River above the waterfalls began in the 1990s and continued through 2017.## River.The 145 (km) long Chalakudy River, originates in the Anaimalai mountains of the Western Ghats and flows through the Vazhachal Forest toward the Arabian Sea. The river starts off smooth but becomes more turbulent as it nears Athirapilly. At Athirappilly Falls, the water surges around big rocks and cascades down in three separate plumes. Below the falls, the river remains turbulent.

Athirappilly Falls. movie "Kaathuvaakula Rendu Kaadhal" (2022) starring Vijay Sethupathi, Nayanthara and Samantha Ruth Prabhu## Hydroelectric project.In 1994, the Kerala State Electricity Board (KSEB) proposed a 163 megawatt Athirappilly Hydro Electric Project. It was to include a dam 23 metres (75 ft) high and 311 metres (1,020 ft) wide on the Chalakudy River in the Vazhachal Forest Division about 5 kilometres (3 mi) upstream of Athirappilly Falls and 400 metres (1,312 ft) upstream of Vazhachal Rapids (Vazhachal Falls). However, environmental groups and people's collectives opposed the project on grounds that it would damage the environment, infringe on human rights, and threaten tourism.

Athirappilly Falls. more environment-friendly power projects with lower operating cost and higher output like super critical boiler plants. Vazhachal Falls Charpa Falls List of waterfalls in India List of waterfalls in India by height Prince Charles, celebrated his 65th birthday in Athirappilly Visiting Athirapilly Waterfalls - What to Know Chalakudy River Protection Forum (CPF) Athirappilly - Vazhachal - Thumboormuzhi - Destination Management Council Official Site: www.thrissur.nic.in Athirappilly Projects Vanishing falls Protests mark hearing on Athirappilly project Salim Ali Foundation.


Question: Where is this insect native to?

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Nyctemera annulata. Nyctemera annulata, the magpie moth, is a moth of the family Erebidae. The species was first described by Jean Baptiste Boisduval in 1832. It is endemic to New Zealand and found in all parts of the country.## Description.The magpie moth's "woolly bear" caterpillars are around 35–38 mm when fully grown and predominantly black with lines of red down its sides and back, blue spots and tufts of hair on each segment. Its liking for the introduced ragwort causes its caterpillars to be sometimes misidentified as those of the cinnabar moth which was introduced as a biological control for ragwort. By.

Nyctemera annulata. can be seen flying over the tops of host plants."Nyctemera annulata" is closely related to "Nyctemera amica", an Australian species which also occurs in New Zealand. The two species may be able to interbreed."Nyctemera annulata annulata" (New Zealand)"Nyctemera annulata antipodea" (Antipodes Islands)## Distribution.## Natural global range."Nyctemera annulata" is only found in New Zealand.## New Zealand range."Nyctemera annulata" is found all over New Zealand, both in the North and South Islands as well as on smaller outlying islands. The "N. annulata" caterpillar have the ability to freeze themselves and survive. This tolerance of cold weather and freezing temperatures has ensured they.

Nyctemera annulata. are able to exist throughout New Zealand.## Habitat preferences."Nyctemera annulata" are only present in habitats where "Senecio" species occur. They are found most commonly in natural habitats but were also found to occur modified and urban habitats as long as "Senecio" host plants were present, either naturalized or native.## Life cycle/phenology.The life cycle of "Nyctemera annulata" takes 6–7 weeks to complete and requires warm weather with the winter being passed in the pupa stage. The moth will lay yellow eggs on the undersides of herbaceous Senecio species. The eggs gradually become dark and will hatch after approximately 6 – 7.

Nyctemera annulata. of year.## Diet and foraging.The primary food source of "Nyctemera annulata" are plants from the tribe Senecioinae of the Asteraceae. Thirty three species are known to exist in the wild and New Zealand has 19 native "Senecio" species with 14 of them naturalised exotics. "N. annulata" diet is specifically limited to one specific plant. Even though the magpie moth is a native, it has been found that they do not restrict themselves to only the native Senecio species in New Zealand and will also feed on exotic introduced species."N. annulata" is a monophagous herbivore insect meaning that their diet is.

Nyctemera annulata. limited to a species of plant. A study found that "N. annulata" did not restrict itself to the native "Senecio" although the insects were found more frequently in the native forested areas than in the urban/rural area These findings are based on research in the Auckland area, and the study found that the numbers of "Nyctemera" would be far fewer if there were not the naturalised exotic species available to them.The most common form of "Senecio" found in New Zealand is the introduced 'ragwort' ("Jacobaea vulgaris") - a weed in most cultivated areas of the country and the magpie moth.

Nyctemera annulata. answer would depend on which way the pupa wriggled – up to indicate "yes" and down was for "no".There has been some research into the role of plant metabolites, particularly pyrrolizidine alkaloids that are sequestered by "N. annulata". The alkaloids are produced by the plant as a defence against herbivory and the larvae of the moth take them up, potentially also as a form of defense suggested by the high levels of toxin found in the moth. This may be another reason there is not much predation of either the larvae or moth.Species info at Monarch.org.nz.


Question: What is the architectural style of this place?

Instruction: Retrieve a Wikipedia paragraph that provides an answer to the given query about the image.

Blenheim Palace. and Bavarians in the War of the Spanish Succession, culminating in the Battle of Blenheim. The land was given as a gift, and construction began in 1705, with some financial support from Queen Anne. The project soon became the subject of political infighting, with the Crown cancelling further financial support in 1712, Marlborough's three-year voluntary exile to the Continent, the fall from influence of his duchess, and lasting damage to the reputation of the architect Sir John Vanbrugh.Designed in the rare, and short-lived, English Baroque style, architectural appreciation of the palace is as divided today as it was in the.


Question: What is the location of this building?

Instruction: Determine the Wikipedia snippet that matches the question of this image.

Venetian Towers. The Venetian Towers (in Catalan: "Torres Venecianes") is the popular name for a pair of towers on Avinguda de la Reina Maria Cristina at its junction with Plaça d'Espanya in Barcelona, Catalonia, Spain. There is one tower on either side of the street.The towers are 47m high, with a 7.2 metres square cross-section. The bottom section of each is built of artificial stone, the main section of red brick, and the top section is a colonnaded viewing gallery built of artificial stone, and topped by a pyramidal copper roof. They were modelled on the campanile of St. Mark's Basilica in.


Question: What pattern, design or motif is applied to the surface of this material?

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Gingham. Gingham, also called Vichy check, is a medium-weight balanced plain-woven fabric typically with striped, check or plaid duotone patterns, in bright colour and in white made from dyed cotton or cotton-blend yarns. It is made of carded, medium or fine yarns.## History.The name may originate . Alternatively, it is speculated that the fabric now known as "gingham" may have been made at Guingamp, a town in Brittany, France, and that the fabric may be named after the town. Some sources say that the name came into English via Dutch. When originally imported into Europe in the 17th century, gingham was.

Gingham. a striped fabric, though now it is distinguished by its checkered pattern. From the mid-18th century, when it was being produced in the mills of Manchester, England, it started to be woven into checked or plaid patterns (often blue and white). Checked gingham became more common over time, though striped gingham was still available in the late Victorian period. The equivalent in the French language is the noun "vichy", from the town of Vichy in France. The same word is used in Spain where this pattern is called "cuadro vichy" or "estampado vichy".In the United States, the mass popularity of.


Question: What is the location of this building?

Instruction: Determine the Wikipedia snippet that matches the question of this image.

Venetian Towers. The Venetian Towers (in Catalan: "Torres Venecianes") is the popular name for a pair of towers on Avinguda de la Reina Maria Cristina at its junction with Plaça d'Espanya in Barcelona, Catalonia, Spain. There is one tower on either side of the street.The towers are 47m high, with a 7.2 metres square cross-section. The bottom section of each is built of artificial stone, the main section of red brick, and the top section is a colonnaded viewing gallery built of artificial stone, and topped by a pyramidal copper roof. They were modelled on the campanile of St. Mark's Basilica in.


Question: What country does this facility belong to?

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Quay with Sphinxes. Quay with Sphinxes (Sphinxes at the Universitetskaya Embankment) is a quay at the Universitetskaya Embankment in Saint Petersburg, in front of the Imperial Academy of Arts. It is remarkable for the two ancient sphinxes that were brought from Egypt to Russia at the height of Egyptomania in 1832. The quay was completed in 1834.## History.The acquisition of sphinxes at the University embankment in front of the Academy of Arts in St. Petersburg is credited to Andrei Muravyov, who in 1830 was going on a pilgrimage to holy places. In Alexandria he saw the sphinxes, which were brought for sale. The.

Quay with Sphinxes. ancient sculptures impressed so much that he immediately sent a letter to the Russian Ambassador, in which he proposed to acquire them. From the Embassy the letter was directed to St. Petersburg. There its receiver, Nicholas I, redirected the message to the Russian Academy of Arts. In the end, such a purchase was deemed expedient, but by the time these bureaucratic complications were resolved, the owner had already sold the sphinxes to France. Only because of the French Revolution they at last arrived in Saint Petersburg in 1832.The first two years they spent in the courtyard of the Russian Academy.

Quay with Sphinxes. of Arts. This time was spent on the creation of a pier made of syenite at the embankment nearby, which was designed by the architect Konstantin Thon. The sphinxes took their places on the waterfront in 1834.## Description.The Saint Petersburg Sphinxes are about 3500 years old. They are made from Aswan granite and initially were in front of a magnificent temple, which was built in Egypt near Thebes (Luxor) for the 18th dynasty pharaoh Amenhotep III. Their faces are portraits of Amenhotep III and the shape of their headwear (crowns "pa shemti") indicate that he was the ruler of two.

Quay with Sphinxes. kingdoms—the Upper Egypt and Lower Egypt. The sphinxes weigh about 23 tons each. Universitetskaya Embankment Egyptian Bridge Cultural heritage of Russia, monument #7810705002, Пристань со сфинксами фараона Аменхотепа III «Петербургские сфинксы. Солнце Египта на берегах Невы»—СПб.: Издательство «Журнал “Нева”», 2005,—304 с., ил.


Question: What product does this object produce?

Instruction: I want to find a paragraph from Wikipedia that answers my question about this image.

Macramé. Macramé is a form of textile produced using knotting (rather than weaving or knitting) techniques.The primary knots of macramé are the square (or reef knot) and forms of "hitching": various combinations of half hitches. It was long crafted by sailors, especially in elaborate or ornamental knotting forms, to cover anything from knife handles to bottles to parts of ships.Cavandoli macramé is one variety that is used to form geometric and free-form patterns like weaving. The Cavandoli style is done mainly in a single knot, the double half-hitch knot. Reverse half hitches are sometimes used to maintain balance when working left.

Macramé. and right halves of a balanced piece.Leather or fabric belts are another accessory often created via macramé techniques. Most friendship bracelets exchanged among schoolchildren and teens are created using this method. Vendors at theme parks, malls, seasonal fairs and other public places may sell macramé jewelry or decoration as well.## History.One of the earliest recorded uses of macramé-style knots as decoration appeared in the carvings of the Babylonians and Assyrians. Fringe-like plaiting and braiding adorned the costumes of the time and were captured in their stone statuary.Arab weavers knotted excess thread along the edges of hand-loomed fabrics such as towels,.

Macramé. shawls, and veils into decorative fringes. The word "macramé" is derived from the Arabic "macramia" (), believed to mean "striped towel", "ornamental fringe" or "embroidered veil". Another school of thought indicates that it comes from Turkish "makrama", "napkin" or "towel". The decorative fringes also helped to keep flies off camels and horses in northern Africa.The Moorish conquest took the craft to Spain, then Italy, especially in the region of Liguria, then it spread through Europe. In England, it was introduced at the court of Mary II in the late 17th century. Queen Mary taught it to her ladies-in-waiting.Macramé was most.

Macramé. popular in the Victorian era. It adorned most homes in items such as tablecloths, bedspreads and curtains. The popular "Sylvia's Book of Macramé Lace" (1882) showed how "to work rich trimmings for black and coloured costumes, both for home wear, garden parties, seaside ramblings, and balls—fairylike adornments for household and underlinens ...".It was a specialty in Genoa, and was popular in the 19th century. There, "Its roots were in a 16th-century technique of knotting lace known as "punto a groppo"" Sailors made macramé objects while not busy at sea, and sold or bartered them when they landed. Nineteenth-century British and.

Macramé. American sailors made hammocks, bell fringes, and belts from macramé. They called the process "square knotting" after the knot they used most often. Sailors also called macramé "McNamara's lace".Macramé's popularity faded, but resurged in the 1970s for making wall hangings, clothing accessories, small jean shorts, bedspreads, tablecloths, draperies, plant hangers and other furnishings. Macramé jewelry became popular in America. Using mainly square knots and granny knots, this jewelry often features handmade glass beads and natural elements such as bone and shell. Necklaces, anklets and bracelets have become popular forms of macramé jewelry. By the early 1980s, macramé again began to.

Macramé. fall out of fashion, only to be revived by millennials.## Materials and process.Materials used in macramé include cords made of cotton twine, linen, hemp, jute, leather or yarn. Cords are identified by construction, such as a 3-ply cord, made of three lengths of fibre twisted together. Jewelry is often made in combination of both the knots and various beads (of glass, wood, and so on), pendants or shells. Sometimes 'found' focal points are used for necklaces, such as rings or gemstones, either wire-wrapped to allow for securing or captured in a net-like array of intertwining overhand knots. A knotting board.

Macramé. is often used to mount the cords for macramé work. Cords may be held in place using a C-clamp, straight pins, T-pins, U-pins, or upholstery pins.For larger decorative pieces, such as wall hangings or window coverings, a work of macramé might be started out on a wooden or metal dowel, allowing for a spread of dozens of cords that are easy to manipulate. For smaller projects, push-pin boards are available specifically for macramé, although a simple corkboard works adequately. Many craft stores offer beginners' kits, work boards, beads and materials ranging in price for the casual hobbyist or ambitious crafter.