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Fresnel lens. A Fresnel lens ( ; ; or ) is a type of composite compact lens developed by the French physicist Augustin-Jean Fresnel (1788–1827) for use in lighthouses. It has been called "the invention that saved a million ships."The design allows the construction of lenses of large aperture and short focal length without the mass and volume of material that would be required by a lens of conventional design. A Fresnel lens can be made much thinner than a comparable conventional lens, in some cases taking the form of a flat sheet. The simpler dioptric (purely refractive) form of the lens.

Fresnel lens. was first proposed by Count Buffon and independently reinvented by Fresnel. The "catadioptric" form of the lens, entirely invented by Fresnel, has outer elements that use total internal reflection as well as refraction; it can capture more oblique light from a light source and add it to the beam of a lighthouse, making the light visible from greater distances.## Description.The Fresnel lens reduces the amount of material required compared to a conventional lens by dividing the lens into a set of concentric annular sections. An ideal Fresnel lens would have an infinite number of sections. In each section, the overall.

Fresnel lens. thickness is decreased compared to an equivalent simple lens. This effectively divides the continuous surface of a standard lens into a set of surfaces of the same curvature, with stepwise discontinuities between them.In some lenses, the curved surfaces are replaced with flat surfaces, with a different angle in each section. Such a lens can be regarded as an array of prisms arranged in a circular fashion with steeper prisms on the edges and a flat or slightly convex center. In the first (and largest) Fresnel lenses, each section was actually a separate prism. 'Single-piece' Fresnel lenses were later produced, being.

Fresnel lens. used for automobile headlamps, brake, parking, and turn signal lenses, and so on. In modern times, computer-controlled milling equipment (CNC) or 3-D printers might be used to manufacture more complex lenses.Fresnel lens design allows a substantial reduction in thickness (and thus mass and volume of material) at the expense of reducing the imaging quality of the lens, which is why precise imaging applications such as photography usually still use larger conventional lenses.Fresnel lenses are usually made of glass or plastic; their size varies from large (old historical lighthouses, meter size) to medium (book-reading aids, OHP viewgraph projectors) to small (TLR/SLR.

Fresnel lens. camera screens, micro-optics). In many cases they are very thin and flat, almost flexible, with thicknesses in the 1 to 5 (mm) range.Most modern Fresnel lenses consist only of refractive elements. Lighthouse lenses, however, tend to include both refracting and reflecting elements, the latter being "outside" the metal rings seen in the photographs. While the inner elements are sections of refractive lenses, the outer elements are reflecting prisms, each of which performs two refractions and one total internal reflection, avoiding the light loss that occurs in reflection from a silvered mirror.## Lighthouse lens sizes.Fresnel designed six sizes of lighthouse lenses,.

Fresnel lens. divided into four "orders" based on their size and focal length. In modern use, these are classified as first through sixth order. An intermediate size between third and fourth order was added later, as well as sizes above first order and below sixth.A first-order lens has a focal length of 920 (mm) and stands about 2.59 (m) high, and 1.8 (m) wide. The smallest (sixth) order has a focal length of 150 (mm) and a height of 433 (mm).The largest Fresnel lenses are called hyperradiant (or hyper-radial). One such lens was on hand when it was decided to build and.

Fresnel lens. outfit the Makapuu Point Light in Hawaii. Rather than order a new lens, the huge optic construction, 12 (ft) tall and with over a thousand prisms, was used there.## Types.There are two main types of Fresnel lens: "imaging" and "non-imaging". Imaging Fresnel lenses use segments with curved cross-sections and produce sharp images, while non-imaging lenses have segments with flat cross-sections, and do not produce sharp images. As the number of segments increases, the two types of lens become more similar to each other. In the abstract case of an infinite number of segments, the difference between curved and flat segments.

Fresnel lens. disappears.Spherical: A spherical Fresnel lens is equivalent to a simple spherical lens, using ring-shaped segments that are each a portion of a sphere, that all focus light on a single point. This type of lens produces a sharp image, although not quite as clear as the equivalent simple spherical lens due to diffraction at the edges of the ridges.Cylindrical: A cylindrical Fresnel lens is equivalent to a simple cylindrical lens, using straight segments with circular cross-section, focusing light on a single line. This type produces a sharp image, although not quite as clear as the equivalent simple cylindrical lens due.

Fresnel lens. to diffraction at the edges of the ridges.Spot: A non-imaging spot Fresnel lens uses ring-shaped segments with cross sections that are straight lines rather than circular arcs. Such a lens can focus light on a small spot, but does not produce a sharp image. These lenses have application in solar power, such as focusing sunlight on a solar panel. Fresnel lenses may be used as components of Köhler illumination optics resulting in very effective nonimaging optics Fresnel-Köhler (FK) solar concentrators.Linear: A non-imaging linear Fresnel lens uses straight segments whose cross sections are straight lines rather than arcs. These lenses focus.

Fresnel lens. light into a narrow band. They do not produce a sharp image, but can be used in solar power, such as for focusing sunlight on a pipe, to heat the water within.## Uses.## Imaging.Fresnel lenses are used as simple hand-held magnifiers. They are also used to correct several visual disorders, including ocular-motility disorders such as strabismus. Fresnel lenses have been used to increase the visual size of CRT displays in pocket televisions, notably the Sinclair TV80. They are also used in traffic lights.Fresnel lenses are used in left-hand-drive European lorries entering the UK and Republic of Ireland (and vice versa,.

Fresnel lens. right-hand-drive Irish and British trucks entering mainland Europe) to overcome the blind spots caused by the driver operating the lorry while sitting on the wrong side of the cab relative to the side of the road the car is on. They attach to the passenger-side window.Another automobile application of a Fresnel lens is a rear view enhancer, as the wide view angle of a lens attached to the rear window permits examining the scene behind a vehicle, particularly a tall or bluff-tailed one, more effectively than a rear-view mirror alone.Multi-focal Fresnel lenses are also used as a part of retina.

Fresnel lens. identification cameras, where they provide multiple in- and out-of-focus images of a fixation target inside the camera. For virtually all users, at least one of the images will be in focus, thus allowing correct eye alignment.Fresnel lenses have also been used in the field of popular entertainment. The British rock artist Peter Gabriel made use of them in his early solo live performances to magnify the size of his head, in contrast to the rest of his body, for dramatic and comic effect. In the Terry Gilliam film "Brazil", plastic Fresnel screens appear ostensibly as magnifiers for the small CRT.

Fresnel lens. monitors used throughout the offices of the Ministry of Information. However, they occasionally appear between the actors and the camera, distorting the scale and composition of the scene to humorous effect. The Pixar movie Wall-E features a Fresnel lens in the scenes where the protagonist watches the musical Hello, Dolly! magnified on an iPod.## Photography.Canon and Nikon have used Fresnel lenses to reduce the size of telephoto lenses. Photographic lenses that include Fresnel elements can be much shorter than corresponding conventional lens design. Nikon calls the technology "Phase Fresnel".The Polaroid SX-70 camera used a Fresnel reflector as part of its.

Fresnel lens. viewing system.View and large format cameras can utilize a Fresnel lens in conjunction with the ground glass, to increase the perceived brightness of the image projected by a lens onto the ground glass, thus aiding in adjusting focus and composition.## Illumination.High-quality glass Fresnel lenses were used in lighthouses, where they were considered state of the art in the late 19th and through the middle of the 20th centuries; most lighthouses have now retired glass Fresnel lenses from service and replaced them with much less expensive and more durable aerobeacons, which themselves often contain plastic Fresnel lenses. Lighthouse Fresnel lens systems.

Fresnel lens. typically include extra annular prismatic elements, arrayed in faceted domes above and below the central planar Fresnel, in order to catch all light emitted from the light source. The light path through these elements can include an internal reflection, rather than the simple refraction in the planar Fresnel element. These lenses conferred many practical benefits upon the designers, builders, and users of lighthouses and their illumination. Among other things, smaller lenses could fit into more compact spaces. Greater light transmission over longer distances, and varied patterns, made it possible to triangulate a position.Perhaps the most widespread use of Fresnel lenses,.

Fresnel lens. for a time, occurred in automobile headlamps, where they can shape the roughly parallel beam from the parabolic reflector to meet requirements for dipped and main-beam patterns, often both in the same headlamp unit (such as the European H4 design). For reasons of economy, weight, and impact resistance, newer cars have dispensed with glass Fresnel lenses, using multifaceted reflectors with plain polycarbonate lenses. However, Fresnel lenses continue in wide use in automobile tail, marker, and reversing lights.Glass Fresnel lenses also are used in lighting instruments for theatre and motion pictures (see Fresnel lantern); such instruments are often called simply "Fresnels".

Fresnel lens. The entire instrument consists of a metal housing, a reflector, a lamp assembly, and a Fresnel lens. Many Fresnel instruments allow the lamp to be moved relative to the lens' focal point, to increase or decrease the size of the light beam. As a result, they are very flexible, and can often produce a beam as narrow as 7° or as wide as 70°. The Fresnel lens produces a very soft-edged beam, so is often used as a wash light. A holder in front of the lens can hold a colored plastic film ("gel") to tint the light or wire.

Fresnel lens. screens or frosted plastic to diffuse it. The Fresnel lens is useful in the making of motion pictures not only because of its ability to focus the beam brighter than a typical lens, but also because the light is a relatively consistent intensity across the entire width of the beam of light.Aircraft carriers and naval air stations typically use Fresnel lenses in their optical landing systems. The "meatball" light aids the pilot in maintaining proper glide slope for the landing. In the center are amber and red lights composed of Fresnel lenses. Although the lights are always on, the angle.

Fresnel lens. of the lens from the pilot's point of view determines the color and position of the visible light. If the lights appear above the green horizontal bar, the pilot is too high. If it is below, the pilot is too low, and if the lights are red, the pilot is very low.Fresnel lenses are also commonly used in searchlights, spotlights, and flashlights.## Projection.The use of Fresnel lenses for image projection reduces image quality, so they tend to occur only where quality is not critical or where the bulk of a solid lens would be prohibitive. Cheap Fresnel lenses can be.

Fresnel lens. stamped or molded of transparent plastic and are used in overhead projectors and projection televisions.Fresnel lenses of different focal lengths (one collimator, and one collector) are used in commercial and DIY projection. The collimator lens has the lower focal length and is placed closer to the light source, and the collector lens, which focuses the light into the triplet lens, is placed after the projection image (an active matrix LCD panel in LCD projectors). Fresnel lenses are also used as collimators in overhead projectors.## Solar power.Since plastic Fresnel lenses can be made larger than glass lenses, as well as being.

Fresnel lens. much cheaper and lighter, they are used to concentrate sunlight for heating in solar cookers, in solar forges, and in solar collectors used to heat water for domestic use. They can also be used to generate steam or to power a Stirling engine.Fresnel lenses can concentrate sunlight onto solar cells with a ratio of almost 500:1. This allows the active solar-cell surface to be reduced, lowering cost and allowing the use of more efficient cells that would otherwise be too expensive. In the early 21st century, Fresnel reflectors began to be used in concentrating solar power (CSP) plants to concentrate.

Fresnel lens. solar energy. One application was to preheat water at the coal-fired Liddell Power Station, in Hunter Valley Australia.Fresnel lenses can be used to sinter sand, allowing 3D printing in glass.## History.## Forerunners.Augustin-Jean Fresnel was not the first person to focus a lighthouse beam using a lens. That distinction apparently belongs to the London glass-cutter Thomas Rogers, who proposed the idea to Trinity House in 1788. The first Rogers lenses, 53cm in diameter and 14cm thick at the center, were installed at the Old Lower Lighthouse at Portland Bill in 1789. Behind each lamp was a back-coated spherical glass mirror, which.

Fresnel lens. reflected rear radiation back through the lamp and into the lens. Further samples were installed at Howth Baily, North Foreland, and at least four other locations by 1804. But much of the light was wasted by absorption in the glass.Nor was Fresnel the first to suggest replacing a convex lens with a series of concentric annular prisms, to reduce weight and absorption. In 1748, Count Buffon proposed grinding such prisms as steps in a single piece of glass. In 1790 (although secondary sources give the date as 1773 or 1788), the Marquis de Condorcet suggested that it would be easier.

Fresnel lens. to make the annular sections separately and assemble them on a frame; but even that was impractical at the time. These designs were intended not for lighthouses, but for burning glasses. David Brewster, however, proposed a system similar to Condorcet's in 1811, and by 1820 was advocating its use in British lighthouses.## Fresnel's contributions.The French (Commission of Lighthouses) was established by Napoleon in 1811, and placed under the authority of Fresnel's employer, the Corps of Bridges and Roads. As the members of the commission were otherwise occupied, it achieved little in its early years. But on 21 June 1819—three months.

Fresnel lens. after winning the physics of the Academy of Sciences for his celebrated memoir on diffraction—Fresnel was "temporarily" seconded to the commission on the recommendation of François Arago (a member since 1813), to review possible improvements in lighthouse illumination.By the end of August 1819, unaware of the Buffon-Condorcet-Brewster proposal, Fresnel made his first presentation to the commission, recommending what he called ('lenses by steps') to replace the reflectors then in use, which reflected only about half of the incident light. Much to Fresnel's embarrassment, one of the assembled commissioners, Jacques Charles, recalled Buffon's suggestion. However, whereas Buffon's version was biconvex and.

Fresnel lens. in one piece, Fresnel's was plano-convex and made of multiple prisms for easier construction. With an official budget of 500 francs, Fresnel approached three manufacturers. The third, François Soleil, found a way to remove defects by reheating and remolding the glass. Arago assisted Fresnel with the design of a modified Argand lamp with concentric wicks (a concept that Fresnel attributed to Count Rumford), and accidentally discovered that fish glue was heat-resistant, making it suitable for use in the lens. The prototype, finished in March 1820, had a square lens panel 55cm on a side, containing 97 polygonal (not annular) prisms—and.

Fresnel lens. so impressed the Commission that Fresnel was asked for a full eight-panel version. This model, completed a year later in spite of insufficient funding, had panels 76cm square. In a public spectacle on the evening of 13 April 1821, it was demonstrated by comparison with the most recent reflectors, which it suddenly rendered obsolete.Soon after this demonstration, Fresnel published the idea that light, including apparently unpolarized light, consists exclusively of transverse waves, and went on to consider the implications for double refraction and partial reflection.Fresnel acknowledged the British lenses and Buffon's invention in a memoir read on 29 July 1822.

Fresnel lens. and printed in the same year. The date of that memoir may be the source of the claim that Fresnel's lighthouse advocacy began two years later than Brewster's; but the text makes it clear that Fresnel's involvement began no later than 1819.Fresnel's next lens was a rotating apparatus with eight "bull's-eye" panels, made in annular arcs by Saint-Gobain, giving eight rotating beams—to be seen by mariners as a periodic flash. Above and behind each main panel was a smaller, sloping bull's-eye panel of trapezoidal outline with trapezoidal elements. This refracted the light to a sloping plane mirror, which then reflected.

Fresnel lens. it horizontally, 7 degrees ahead of the main beam, increasing the duration of the flash. Below the main panels were 128 small mirrors arranged in four rings, stacked like the slats of a louver or Venetian blind. Each ring, shaped like a frustum of a cone, reflected the light to the horizon, giving a fainter steady light between the flashes. The official test, conducted on the unfinished on 20 August 1822, was witnessed by the Commission—and by Louis XVIII and his entourage—from 20 (mi) away. The apparatus was stored at Bordeaux for the winter, and then reassembled at Cordouan Lighthouse.

Fresnel lens. under Fresnel's supervision—in part by Fresnel's own hands. On 25 July 1823, the world's first lighthouse Fresnel lens was lit. As expected, the light was visible to the horizon, more than 20 (mi) out.The day before the test of the Cordouan lens in Paris, a committee of the Academy of Sciences reported on Fresnel's memoir and supplements on double refraction—which, although less well known to modern readers than his earlier work on diffraction, struck a more decisive blow for the wave theory of light. Between the test and the reassembly at Cordouan, Fresnel submitted his papers on photoelasticity (16 September.

Fresnel lens. 1822), elliptical and circular polarization and optical rotation (9 December), and partial reflection and total internal reflection (7 January 1823), essentially completing his reconstruction of physical optics on the transverse wave hypothesis. Shortly after the Cordouan lens was lit, Fresnel started coughing up blood.In May 1824, Fresnel was promoted to Secretary of the , becoming the first member of that body to draw a salary, albeit in the concurrent role of Engineer-in-Chief. Late that year, being increasingly ill, he curtailed his fundamental research and resigned his seasonal job as an examiner at the , in order to save his remaining.

Fresnel lens. time and energy for his lighthouse work.In the same year he designed the first "fixed" lens—for spreading light evenly around the horizon while minimizing waste above or below. Ideally the curved refracting surfaces would be segments of toroids about a common vertical axis, so that the dioptric panel would look like a cylindrical drum. If this was supplemented by reflecting (catoptric) rings above and below the refracting (dioptric) parts, the entire apparatus would look like a beehive. The second Fresnel lens to enter service was indeed a fixed lens, of third order, installed at Dunkirk by 1 February 1825. However,.

Fresnel lens. due to the difficulty of fabricating large toroidal prisms, this apparatus had a 16-sided polygonal plan.In 1825 Fresnel extended his fixed-lens design by adding a rotating array outside the fixed array. Each panel of the rotating array was to refract part of the fixed light from a horizontal fan into a narrow beam.Also in 1825, Fresnel unveiled the ('lighthouse map'), calling for a system of 51 lighthouses plus smaller harbor lights, in a hierarchy of lens sizes called "orders" (the first being the largest), with different characteristics to facilitate recognition: a constant light (from a fixed lens), one flash per.

Fresnel lens. minute (from a rotating lens with eight panels), and two per minute (16 panels).In late 1825, to reduce the loss of light in the reflecting elements, Fresnel proposed to replace each mirror with a catadioptric prism, through which the light would travel by refraction through the first surface, then total internal reflection off the second surface, then refraction through the third surface. The result was the lighthouse lens as we now know it. In 1826 he assembled a small model for use on the , but he did not live to see a full-sized version: he died on 14 July.

Fresnel lens. 1827, at the age of 39.## After Fresnel.The first stage of the development of lighthouse lenses after the death of Augustin Fresnel consisted in the implementation of his designs. This was driven in part by his younger brother Léonor—who, like Augustin, was trained as a civil engineer but, unlike Augustin, had a strong aptitude for management. Léonor entered the service of the Lighthouse Commission in 1825, and went on to succeed Augustin as Secretary.The first fixed lens to be constructed with toroidal prisms was a first-order apparatus designed by the Scottish engineer Alan Stevenson under the guidance of Léonor Fresnel,.

Fresnel lens. and fabricated by Isaac Cookson & Co. using French glass; it entered service at the Isle of May, Scotland, on 22 September 1836. The first large catadioptric lenses were made in 1842 for the lighthouses at Gravelines and Île Vierge, France; these were fixed third-order lenses whose catadioptric rings (made in segments) were one metre in diameter. Stevenson's first-order Skerryvore lens, lit in 1844, was only partly catadioptric; it was similar to the Cordouan lens except that the lower slats were replaced by French-made catadioptric prisms, while mirrors were retained at the top. The first "fully" catadioptric first-order lens, installed.

Fresnel lens. at Pointe d'Ailly in 1852, also gave eight rotating beams plus a fixed light at the bottom; but its top section had eight catadioptric panels focusing the light about 4 degrees ahead of the main beams, in order to lengthen the flashes. The first fully catadioptric lens with "purely revolving" beams—also of first order—was installed at Saint-Clément-des-Baleines in 1854, and marked the completion of Augustin Fresnel's original "Carte des Phares".Thomas Stevenson (younger brother of Alan) went a step beyond Fresnel with his "holophotal" lens, which focused the light radiated by the lamp in nearly all directions, forward or backward, into.

Fresnel lens. a single beam. The first version, described in 1849, consisted of a standard Fresnel bull's-eye lens, a paraboloidal reflector, and a rear hemispherical reflector (functionally equivalent to the Rogers mirror of 60 years earlier, except that it subtended a whole hemisphere). Light radiated into the forward hemisphere but missing the bull's-eye lens was deflected by the paraboloid into a parallel beam surrounding the bull's-eye lens, while light radiated into the backward hemisphere was reflected back through the lamp by the spherical reflector (as in Rogers' arrangement), to be collected by the forward components. The first unit was installed at North.

Fresnel lens. Harbour, Peterhead, in August 1849. Stevenson called this version a "catadioptric holophote", although each of its elements was either purely reflective or purely refractive. In the second version of the holophote concept, the bull's-eye lens and paraboloidal reflector were replaced by a catadioptric Fresnel lens—as conceived by Fresnel, but expanded to cover the whole forward hemisphere. The third version, which Stevenson confusingly called a "dioptric holophote", was more innovative: it retained the catadioptric Fresnel lens for the front hemisphere, but replaced the rear hemispherical reflector with a hemispherical array of annular prisms, each of which used "two" total internal reflections.

Fresnel lens. to turn light diverging from the center of the hemisphere back toward the center. The result was an all-glass holophote, with no losses from metallic reflections.James Timmins Chance modified Thomas Stevenson's all-glass holophotal design by arranging the double-reflecting prisms about a vertical axis. The prototype was shown at the 1862 International Exhibition in London. Later, to ease manufacturing, Chance divided the prisms into segments, and arranged them in a cylindrical form while retaining the property of reflecting light from a single point back to that point. Reflectors of this form, paradoxically called "dioptric mirrors", proved particularly useful for returning light.

Fresnel lens. from the landward side of the lamp to the seaward side.As lighthouses proliferated, they became harder to distinguish from each other, leading to the use of colored filters, which wasted light. In 1884, John Hopkinson eliminated the need for filters by inventing the "group-flashing" lens, in which the dioptric and/or the catadioptric panels were split so as to give multiple flashes—allowing lighthouses to be identified not only by frequency of flashes, but also by multiplicity of flashes. Double-flashing lenses were installed at Tampico (Mexico) and Little Basses (Sri Lanka) in 1875, and a triple-flashing lens at Casquets Lighthouse (Channel Islands).

Fresnel lens. in 1876. The example shown (right) is the double-flashing lens of the Point Arena Light, which was in service from 1908 to 1977.The development of hyper-radial lenses was driven in part by the need for larger light sources, such as gas lights with multiple jets, which required a longer focal length for a given beam-width, hence a larger lens to collect a given fraction of the generated light. The first hyper-radial lens was built for the Stevensons in 1885 by F. Barbier & Cie of France, and tested at South Foreland Lighthouse with various light sources. Chance Brothers (Hopkinson's employers).

Fresnel lens. then began constructing hyper-radials, installing their first at Bishop Rock Lighthouse in 1887. In the same year, Barbier installed a hyper-radial at Tory Island. But only about 30 hyper-radials went into service before the development of more compact bright lamps rendered such large optics unnecessary (see "Hyperradiant Fresnel lens").Production of one-piece stepped dioptric lenses—roughly as envisaged by Buffon—became feasible in 1852, when John L. Gilliland of the Brooklyn Flint-Glass Company patented a method of making lenses from pressed and molded glass. The company made small bull's-eye lenses for use on railroads, steamboats, and docks; such lenses were common in the.

Fresnel lens. United States by the 1870s. In 1858 the company produced "a very small number of pressed flint-glass sixth-order lenses" for use in lighthouses—the first Fresnel lighthouse lenses made in America. By the 1950s, the substitution of plastic for glass made it economic to use Fresnel lenses as condensers in overhead projectors. Fresnel imager Fresnel zone plate Lenticular lens Linear Fresnel reflector Prism lighting − Fresnel anidolic optics M. Born and E. Wolf, "Principles of Optics", 7th Ed., Cambridge, 1999. G.-A. Boutry, 1948, "Augustin Fresnel: His time, life and work, 1788–1827", "Science Progress", vol. 36, no. 144 (October 1948), pp. 587–604;.

Fresnel lens. jstor.org/stable/43413515. J.Z. Buchwald, 1989, "The Rise of the Wave Theory of Light: Optical Theory and Experiment in the Early Nineteenth Century", University of Chicago Press, . J. Elton, 2009, "A Light to Lighten our Darkness: Lighthouse Optics and the Later Development of Fresnel's Revolutionary Refracting Lens 1780–1900", "International Journal for the History of Engineering & Technology", vol. 79, no. 2 (July 2009), pp. 183–244; . A. Fresnel, 1822, "Mémoire sur un nouveau système d'éclairage des phares", read 29 July 1822; reprinted in Fresnel, 1866–70, vol. 3, pp. 97–126; translated by T. Tag as "Memoir upon a new system of lighthouse.

Fresnel lens. illumination", U.S. Lighthouse Society, accessed 26 August 2017; archived 19 August 2016. (Cited page numbers refer to the translation.) A. Fresnel (ed. H. de Sénarmont, E. Verdet, and L. Fresnel), 1866–70, "Oeuvres complètes d'Augustin Fresnel" (3 vols.), Paris: Imprimerie Impériale; vol. 1 (1866), vol. 2 (1868), vol. 3 (1870). T.H. Levitt, 2013, "A Short Bright Flash: Augustin Fresnel and the Birth of the Modern Lighthouse", New York: W.W. Norton, . T. Young (ed. G. Peacock), 1855, "Miscellaneous Works of the late Thomas Young", London: J. Murray, vol. 1. "The Fresnel Lens", "The Keeper's Log", Winter 1985, pp. 12–14. U.S. Coast.

Fresnel lens. Guard, "Aids to Navigation", Washington, DC: U.S. Government Printing Office, 1945. U.S. Coast Guard, "Lighthouses, Lenses, Illuminants, Engineering, & Augustin Fresnel: A Historical Bibliography on Works Published Through 2007". United States Lighthouse Society, especially "Fresnel Lenses". W.A. Britten, "The Fresnel lens" (with photographs). J. Francis, "Fresnel Lens - Maxwell Simulation", 13 April 2009. J. Hare, "How the Fresnel lens works" (5-minute video), Vega Science Trust, 2008.


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.


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Tetrahedron. regular tetrahedron.The following Cartesian coordinates define the four vertices of a tetrahedron with edge length 2, centered at the origin, and two level edges:formula_1Expressed symmetrically as 4 points on the unit sphere, centroid at the origin, with lower face level, the vertices are:formula_2formula_3formula_4formula_5with the edge length of formula_6.Still another set of coordinates are based on an alternated cube or demicube with edge length 2. This form has Coxeter diagram and Schläfli symbol h{4,3}. The tetrahedron in this case has edge length 2. Inverting these coordinates generates the dual tetrahedron, and the pair together form the stellated octahedron, whose vertices are.

Tetrahedron. those of the original cube.Tetrahedron: (1,1,1), (1,−1,−1), (−1,1,−1), (−1,−1,1)Dual tetrahedron: (−1,−1,−1), (−1,1,1), (1,−1,1), (1,1,−1)## Angles and distances.For a regular tetrahedron of edge length "a":With respect to the base plane the slope of a face (2) is twice that of an edge (), corresponding to the fact that the "horizontal" distance covered from the base to the apex along an edge is twice that along the median of a face. In other words, if "C" is the centroid of the base, the distance from "C" to a vertex of the base is twice that from "C" to the midpoint of an.

Tetrahedron. two tetrahedra in the cube). The symmetries of a regular tetrahedron correspond to half of those of a cube: those that map the tetrahedra to themselves, and not to each other.The tetrahedron is the only Platonic solid that is not mapped to itself by point inversion.The regular tetrahedron has 24 isometries, forming the symmetry group Td, [3,3], (*332), isomorphic to the symmetric group, "S"4. They can be categorized as follows: T, [3,3]+, (332) is isomorphic to alternating group, "A"4 (the identity and 11 proper rotations) with the following conjugacy classes (in parentheses are given the permutations of the vertices, or.

Tetrahedron. correspondingly, the faces, and the unit quaternion representation): identity (identity; 1) rotation about an axis through a vertex, perpendicular to the opposite plane, by an angle of ±120°: 4 axes, 2 per axis, together , etc.; ) rotation by an angle of 180° such that an edge maps to the opposite edge: , etc.; ) reflections in a plane perpendicular to an edge: 6 reflections in a plane combined with 90° rotation about an axis perpendicular to the plane: 3 axes, 2 per axis, together 6; equivalently, they are 90° rotations combined with inversion (x is mapped to −x): the.

Tetrahedron. are projected as circular arcs on the plane.## Helical stacking.Regular tetrahedra can be stacked face-to-face in a chiral aperiodic chain called the Boerdijk–Coxeter helix. In four dimensions, all the convex regular 4-polytopes with tetrahedral cells (the 5-cell, 16-cell and 600-cell) can be constructed as tilings of the 3-sphere by these chains, which become periodic in the three-dimensional space of the 4-polytope's boundary surface.## Irregular tetrahedra.Tetrahedra which do not have four equilateral faces are categorized and named by the symmetries they do possess.If all three pairs of opposite edges of a tetrahedron are perpendicular, then it is called an orthocentric tetrahedron.

Tetrahedron. to the opposite faces are inversely proportional to the areas of these faces.For a tetrahedron with vertices,, and, the volume is , or any other combination of pairs of vertices that form a simply connected graph. This can be rewritten using a dot product and a cross product, yieldingformula_9If the origin of the coordinate system is chosen to coincide with vertex d, then d = 0, soformula_10where a, b, and c represent three edges that meet at one vertex, and is a scalar triple product. Comparing this formula with that used to compute the volume of a parallelepiped, we conclude.

Tetrahedron. that the volume of a tetrahedron is equal to of the volume of any parallelepiped that shares three converging edges with it.The absolute value of the scalar triple product can be represented as the following absolute values of determinants:formula_11orformula_12whereformula_13are expressed as row or column vectors.Henceformula_14whereformula_15which givesformula_16where "α", "β", "γ" are the plane angles occurring in vertex d. The angle "α", is the angle between the two edges connecting the vertex d to the vertices b and c. The angle "β", does so for the vertices a and c, while "γ", is defined by the position of the vertices a and.

Tetrahedron. b.If we do not require that d = 0 thenformula_17Given the distances between the vertices of a tetrahedron the volume can be computed using the Cayley–Menger determinant:formula_18where the subscripts represent the vertices and "d" is the pairwise distance between them – i.e., the length of the edge connecting the two vertices. A negative value of the determinant means that a tetrahedron cannot be constructed with the given distances. This formula, sometimes called Tartaglia's formula, is essentially due to the painter Piero della Francesca in the 15th century, as a three dimensional analogue of the 1st century Heron's formula for the.

Tetrahedron. area of a triangle.Let be three edges that meet at a point, and the opposite edges. Let be the volume of the tetrahedron; thenformula_19whereformula_20The above formula uses six lengths of edges, and the following formula uses three lengths of edges and three angles.formula_21## Heron-type formula for the volume of a tetrahedron.If , , , , , are lengths of edges of the tetrahedron (first three form a triangle; with opposite , opposite , opposite ), thenformula_22where formula_23 formula_24## Volume divider.Any plane containing a bimedian (connector of opposite edges' midpoints) of a tetrahedron bisects the volume of the tetrahedron.## Non-Euclidean volume.For.

Tetrahedron. segment joining the midpoints of two opposite edges is called a "bimedian" of the tetrahedron. Hence there are four medians and three bimedians in a tetrahedron. These seven line segments are all concurrent at a point called the "centroid" of the tetrahedron. In addition the four medians are divided in a 3:1 ratio by the centroid (see Commandino's theorem). The centroid of a tetrahedron is the midpoint between its Monge point and circumcenter. These points define the "Euler line" of the tetrahedron that is analogous to the Euler line of a triangle.The nine-point circle of the general triangle has an.

Tetrahedron. is a diagonal of one of the cube's faces. For one such embedding, the Cartesian coordinates of the vertices are(+1, +1, +1);(−1, −1, +1);(−1, +1, −1);(+1, −1, −1).This yields a tetrahedron with edge-length 2, centered at the origin. For the other tetrahedron (which is dual to the first), reverse all the signs. These two tetrahedra's vertices combined are the vertices of a cube, demonstrating that the regular tetrahedron is the 3-demicube.The volume of this tetrahedron is one-third the volume of the cube. Combining both tetrahedra gives a regular polyhedral compound called the compound of two tetrahedra or stella octangula.The interior.

Tetrahedron. of the stella octangula is an octahedron, and correspondingly, a regular octahedron is the result of cutting off, from a regular tetrahedron, four regular tetrahedra of half the linear size (i.e., rectifying the tetrahedron).The above embedding divides the cube into five tetrahedra, one of which is regular. In fact, five is the minimum number of tetrahedra required to compose a cube. To see this, starting from a base tetrahedron with 4 vertices, each added tetrahedra adds at most 1 new vertex, so at least 4 more must be added to make a cube, which has 8 vertices.Inscribing tetrahedra inside the.

Tetrahedron. and counterclockwise orientations of the surface.Putting any of the four vertices in the role of "O" yields four such identities, but at most three of them are independent: If the "clockwise" sides of three of them are multiplied and the product is inferred to be equal to the product of the "counterclockwise" sides of the same three identities, and then common factors are cancelled from both sides, the result is the fourth identity.Three angles are the angles of some triangle if and only if their sum is 180° (π radians). What condition on 12 angles is necessary and sufficient for.

Tetrahedron. them to be the 12 angles of some tetrahedron? Clearly the sum of the angles of any side of the tetrahedron must be 180°. Since there are four such triangles, there are four such constraints on sums of angles, and the number of degrees of freedom is thereby reduced from 12 to 8. The four relations given by this sine law further reduce the number of degrees of freedom, from 8 down to not 4 but 5, since the fourth constraint is not independent of the first three. Thus the space of all shapes of tetrahedra is 5-dimensional.## Law of.

Tetrahedron. faces are "F"a, "F"b, "F"c, and "F"d. Thenformula_29For vertices "A", "B", "C", and "D", interior point "P", and feet "J", "K", "L", and "M" of the perpendiculars from "P" to the faces, and suppose the faces have equal areas, thenformula_30## Inradius.Denoting the inradius of a tetrahedron as "r" and the inradii of its triangular faces as "r""i" for "i" = 1, 2, 3, 4, we haveformula_31with equality if and only if the tetrahedron is regular.If "A""1", "A""2", "A""3" and "A""4" denote the area of each faces, the value of "r" is given byformula_32.This formula is obtained from dividing the tetrahedron.

Tetrahedron. tetrahedra. One example has one edge of 896, the opposite edge of 990 and the other four edges of 1073; two faces are isosceles triangles with areas of and the other two are isosceles with areas of , while the volume is .A tetrahedron can have integer volume and consecutive integers as edges, an example being the one with edges 6, 7, 8, 9, 10, and 11 and volume 48.## Related polyhedra and compounds.A regular tetrahedron can be seen as a triangular pyramid.A regular tetrahedron can be seen as a degenerate polyhedron, a uniform "digonal antiprism", where base polygons are.

Tetrahedron. is arccos(−), or approximately 109.47°.Water, , also has a tetrahedral structure, with two hydrogen atoms and two lone pairs of electrons around the central oxygen atoms. Its tetrahedral symmetry is not perfect, however, because the lone pairs repel more than the single O–H bonds.Quaternary phase diagrams of mixtures of chemical substances are represented graphically as tetrahedra.However, quaternary phase diagrams in communication engineering are represented graphically on a two-dimensional plane.## Electricity and electronics.If six equal resistors are soldered together to form a tetrahedron, then the resistance measured between any two vertices is half that of one resistor.Since silicon is the most.

Tetrahedron. rolled appearing around the bottom or on the top vertex. Some Rubik's Cube-like puzzles are tetrahedral, such as the Pyraminx and Pyramorphix.## Geology.The tetrahedral hypothesis, originally published by William Lowthian Green to explain the formation of the Earth, was popular through the early 20th century.## Weaponry.Some caltrops are based on tetrahedra as one spike points upwards regardless of how they land and can be easily made by welding two bent nails together.## Contemporary art.The Austrian artist Martina Schettina created a tetrahedron using fluorescent lamps. It was shown at the light art biennale Austria 2010.It is used as album artwork, surrounded.


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

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Chickpea. The chickpea or chick pea ("Cicer arietinum") is an annual legume of the family Fabaceae, subfamily Faboideae. Its different types are variously known as gram or Bengal gram, garbanzo or garbanzo bean, or Egyptian pea. Chickpea seeds are high in protein. It is one of the earliest cultivated legumes, and 9500-year-old remains have been found in the Middle East.The chickpea is a key ingredient in Mediterranean and Middle Eastern cuisines, used in hummus, and, when ground into flour, falafel. It also is important in Indian cuisine, used in salads, soups and stews, and curry, in chana masala, and in other.

Chickpea. meal products like channa. In 2019, India was responsible for 70% of global chickpea production.## Etymology.The name "chickpea", earlier "chiche pease", is modelled on Middle French ', where "chiche" comes from Latin '. "Chich" was used by itself in English from the 14th to the 18th centuries. The word ', from an alteration of Old Spanish ', came first to English as "garvance" in the 17th century, being gradually anglicized to "calavance", though that came to refer to a variety of other beans, including the hyacinth bean. The current form "garbanzo" comes directly from modern Spanish.## History."Cicer reticulatum" is the.

Chickpea. of "Cicer arietinum", commonly known as the [[perennial plant|perennial]] chickpea. Heat cultivation and macronutrient coupling are two relatively unknown methods that are used to increase the yield and size of the chickpea. Recent research has indicated that a combination of heat treatment along with the two vital macronutrients, phosphorus and nitrogen, are the most critical components to increasing the overall yield of "Cicer arietinum".Perennial chickpeas are a fundamental source of nutrition in animal feed as they are high sources of energy and protein for livestock. Unlike other food crops, the perennial chickpea shows a remarkable capacity to change its nutritional.

Chickpea. incrementally increases the height of the chickpea plant. Thus, the seasonal changes in phosphorus soil content as well as periods of drought that are known to be a native characteristic of the dry [[Middle East|Middle-Eastern]] region where the chickpea is most commonly cultivated have a strong effect on the growth of the plant itself. Plant yield is also affected by a combination of phosphorus nutrition and water supply, resulting in a 12% increase in yield of the crop.Nitrogen nutrition is another factor that affects the yield of "Cicer arietinum", although the application itself differs from other perennial crops with regards.

Chickpea. to the levels administered on the plant. High doses of nitrogen inhibit the yield of the chickpea plant. Drought stress is a likely factor that also inhibits the uptake of nitrogen and subsequent fixation in the roots of "Cicer arietinum". The growth of the perennial chickpea is dependent on the balance between nitrogen fixation and assimilation that is also characteristic of many other agricultural plant types. The influence of drought stress, sowing date, and mineral nitrogen supply all have an effect on the yield and size of the plant, with trials showing that "Cicer arietinum" differed from other plant species.


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Liquor store. (and any shops that sells alcohol) from its effects. The mandatory closing time for any licensed liquor stores are regulated by Licensing Act 2003 instead.During the COVID-19 pandemic in the United Kingdom, all pubs closed during the lockdown from 20 March 2020. However, on 25 March, off-licences were added to the list of essential businesses allowed to stay open, also enabling pubs and brewery taprooms with licences to sell beer for home consumption to offer takeaway sales and home deliveries.In the Republic of Ireland, there are five kinds of off-licence: Wine Retailer’s Off LicenceBeer Retailer’s Off LicenceSpirit Retailer’s Off LicenceCider.


Question: Where is this plant native to?

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Pittosporum tenuifolium. Pittosporum tenuifolium is a small evergreen tree endemic to New Zealand – up to 10 (m) – commonly known as ' and black matipo, and by other Māori names ' and . Its small, very dark, reddish-purple flowers generally go unnoticed, and are scented only at night. The Latin means "slender-leaved"## Description.The scientific name of kōhūhū is a good starting point to find out more about the physical characteristics of the species. "Pittosporum" translates to tarry – – seed – , a reference to the sticky fluid that encases the seeds and means thin – – leaf – .Kōhūhū is.

Pittosporum tenuifolium. or three segments when ripened. Inside are black seeds, encased in a very sticky substance. The stickiness of the seeds is likely to help with seed dispersal.## Names.Common names include:MatipoBlack matipoRautawhiri RautāwhiriKairaroKihihiKowhiwhi, KōwhiwhiKohukohuKoihuMāpaurikiPōhiriPōwhiriTāwhiriTawiriTawhiwhiSilverleafTurpentine-treeBlack birch## Distribution.## Natural global range.Kōhūhū is endemic to New Zealand.## New Zealand range.Kōhūhū is well spread all over New Zealand, being absent only to the west of the Southern Alps and Stewart Island.## Habitat preferences.Kōhūhū is found growing wild in coastal and lower mountain forest areas up to an altitude of 900 m.Kōhūhū grows particularly quickly at forest edges located at the bottom of high terraces, and.

Pittosporum tenuifolium. and prefers soils with good drainage in humid climates. Planting it in damp conditions can cause winter leaf drop, which likely explains why kōhūhū is not found growing on the West Coast of New Zealand. In its role in ecological succession, kōhūhū is often found at an earlier stage than its relative lemonwood (another endemic "Pittosporum"), and usually inhabits less fertile soils.## Predators, Parasites, and Diseases.## Insects.There are over 50 insect species listed in the Plant-SyNZ database that either feed on or parasitise kōhūhū – wasps, sucking bugs, flies, moths, butterflies, thrips, mites and beetles. There are also more than.

Pittosporum tenuifolium. feed only on "Pittosporum" species, by attaching themselves to a suitable part of the plant and feeding on its sap. The psyllid leaves a trail of characteristic “beads” behind.Cottony cushion scale – "Icerya purchase" –, an Australian bug, soft wax scale – "Ceroplastes destructor" –, an import from overseas and the Australian green shield bug – "Glaucias amyoti" –, native to New Zealand despite its name also parasitise the "Pittosporum" species, but have a more varied range of hosts. All attach themselves to a suitable part of the plant and feed on its sap.New Zealand flower thrips – "Thrips obscuratus.

Pittosporum tenuifolium. – feeds on leaves, flowers and young fruit of kōhūhū, by piercing plant cells and sucking their contents.## Fungi."Pythium irregulare" has been recorded as a pathogen of kōhūhū, causing foliar blight, rot, and eventually death.A recently discovered pathogen of kōhūhū that caused swelling of twigs – the fungus "Elsinoe takoropuku" – turned out to be a newly discovered species of fungi. The fungus was, so far, only found in association with kōhūhū.## Uses.## Garden plant.Kōhūhū is a popular garden plant in New Zealand and overseas, often used a hedge or as visual backdrop. It is sometimes grown under the cultivar.


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Saxon Railway Museum. The Saxon Railway Museum ("Sächsisches Eisenbahnmuseum" or "SEM") is located in Chemnitz, in the state of Saxony, eastern Germany. It is situated on the site of the former locomotive depot ("Bahnbetriebswerk" or "Bw") for goods train locomotives in the district Hilbersdorf.After the locomotive depot was closed in 1992, the society moved into the buildings which were protected as historical monuments. As a result, the museum has two roundhouses with 20 (m) turntables. In addition there are coaling and sanding facilities, water cranes, a working jack for inspection pits and a range of other equipment found in an operational depot.The exhibition.

Saxon Railway Museum. locomotives. The SEM, together with the Museum of Technology Cable Running System, are also known as "Schauplatz Eisenbahn" (both located in Hilbersdorf). This new technical museum area is the largest one in Germany. ## Literature.Egon Kretzschmar: "Die Bahnbetriebswerke in Chemnitz/Karl-Marx-Stadt" Bildverlag Böttger, Witzschdorf 2003 "(German)"Website of the Saxon Railway Museum.


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Sea otter. the late 1980s, the USFWS relocated about 140 southern sea otters to San Nicolas Island in southern California, in the hope of establishing a reserve population should the mainland be struck by an oil spill. To the surprise of biologists, the majority of the San Nicolas sea otters swam back to the mainland. Another group of twenty swam 74 (mi) north to San Miguel Island, where they were captured and removed. By 2005, only 30 sea otters remained at San Nicolas, although they were slowly increasing as they thrived on the abundant prey around the island. The plan that authorized.


Question: Which location has this plant invaded?

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Pontederia crassipes. of water that have already been affected by human activities, such as artificial reservoirs or eutrophied lakes that receive large amounts of nutrients. It outcompetes native aquatic plants, both floating and submerged. In 2011, Wu Fuqin et al. tracked the results of Yunnan Dianchi Lake and also showed that water hyacinth could affect the photosynthesis of phytoplankton, submerged plants and algae by water environment quality and inhibit its growth. The decay process depletes dissolved oxygen in the water, often killing fish.Water hyacinth can absorb a large amount of harmful heavy metals and other substances. After death, it will rot and.

Pontederia crassipes. tons of fresh biomass would require 75 trucks with a capacity of 40m^3, per day, for 365 days to get rid of a million tons of water hyacinth. The water hyacinth would then be transferred to a dumping site and allowed to decompose which releases CO2, CH4 and nitrogen oxides which would all negatively impact the air quality and contribute to global warming.Water hyacinth has been widely introduced in North America, Europe, Asia, Australia, Africa, and New Zealand. In many areas, it has become an important and pernicious invasive species. In New Zealand, it is listed on the National Pest.

Pontederia crassipes. and the "Japanese staff imported from Venezuela considerable numbers of water hyacinth, which were given away as souvenirs". The claim has been repeated by later writers, with various shifts in the details. Thus NAS fellow Noel D. Vietmeyer (1975) wrote that "Japanese entrepreneurs" introduced the plant into the U.S., and the plants had been "collected from the Orinoco River in Venezuela", and the claim was echoed along the same gist by a pair of NASA researchers (), who asserted that the souvenir plants were carelessly dumped in various waterways. Canadian biologist Spencer C. H. Barrett (2004) meanwhile favored the theory.

Pontederia crassipes. they were first cultivated in garden ponds, after which they multiplied and escaped to the environs. The account gains a different detail as told by children's story-teller Carole Marsh (1992), who says "Japan gave away water hyacinth seeds" during the exposition, and another Southern raconteur, Gaspar J. "Buddy" Stall (1998) assured his readership that the Japanese gave each family a package of those seeds.One paper has also inquired into the role which catalog sales of seeds and plants may have played in the dissemination of invasive plants. It has been found that "P. crassipes" was offered in the 1884 issue.

Pontederia crassipes. Corps of Engineers) tested various means of eradicating the plants, including the jet-streaming of steam and hot water, application of various strong acids, and application of petroleum followed by incineration. Spraying with saturated salt solution (but not dilute solutions) effectively killed the plants; unfortunately this was considered prohibitively expensive, and the engineers selected Harvesta brand herbicide, whose active ingredient was arsenic acid, as the optimal cost-effective tool for eradication. This herbicide was used until 1905, when it was substituted with a different, white arsenic based compound. An engineer charged with the spraying did not think the poison to be a.

Pontederia crassipes. sheep, lambs, were native to the U.S.; all had been imported by European settlers centuries before, so why should Americans hesitate to introduce hippopotamus and other large animals into the American diet? Duquesne, who was born and raised in South Africa, further noted that European settlers on that continent commonly included hippopotamus, ostrich, antelope, and other African wildlife in their diets and suffered no ill effects. The American Hippo bill nearly passed, but fell one vote short.Water hyacinths have also been introduced into waters inhabited by manatees in Florida, for the purpose of bioremediation (cf. §Phytoremediation below) of the waters.

Pontederia crassipes. development of China's inland industry, the eutrophication of inland waters has intensified. With the help of its efficient asexual reproduction and environmental adaptation mechanisms, water hyacinth has begun to spread widely in the river basin. The hyacinths blocked the river and hindered the internal water traffic. For example, many waterways in Zhejiang and other provinces were blocked by the rapidly growing water hyacinth. In addition, a large number of water hyacinths floating in the water will block sunlight from entering the water, and its decay consumes a lot of dissolved oxygen in the water, pollutes the water quality, and can.

Pontederia crassipes. kill other aquatic plants. The outbreak of water hyacinth has seriously affected the biodiversity of the local ecosystem and threatened the production, life and health of community residents.In Iraq, water hyacinth which was imported in the 1990s as a decorative plant, caused major problems for water supply systems and fishermen at the Euphrates.## Europe.In 2016, the European Union banned any sales of the water hyacinth in the EU. The species features on the list of Invasive Alien Species of Union Concern. This means that not only the sales but also importation, cultivation, or intentional release into the environment are forbidden.

Pontederia crassipes. in the whole of the European Union.## Oceania.In Papua New Guinea, water hyacinth blocked sunlight to other aquatic organisms, created habitat for malaria-carrying mosquitoes, clogged waterways to the point that boats could not get through and reduced the quality of water for purposes such as cooking, washing and drinking. People have lost income or even died due to being unable to travel to get food or medical care, or due to diseases from contaminated water or mosquitoes.## Control.Control depends on the specific conditions of each affected location such as the extent of water hyacinth infestation, regional climate, and proximity to.

Pontederia crassipes. root zones are superb micro-sites for bacterial communities.Water hyacinth is a common fodder plant in the third world especially Africa though excessive use can be toxic. It is high in protein (nitrogen) and trace minerals and the goat feces are a good source of fertilizer as well.Water hyacinth is reported for its efficiency to remove about 60–80% nitrogen and about 69% of potassium from water. The roots of water hyacinth were found to remove particulate matter and nitrogen in a natural shallow eutrophicated wetland.The plant is extremely tolerant of, and has a high capacity for, the uptake of heavy metals,.

Pontederia crassipes. portion of cultivable land goes under water for months during monsoon in this low-lying region, farmers have grown this method for many decades now. The method of this agriculture is known by many names including "dhap chash" and "vasoman chash".In Kenya, East Africa, it has been used experimentally as organic fertilizer, although there is controversy stemming from the high alkaline pH value of the fertilizer.## Other uses.In various places in the world, the plant is used for making furniture, handbags, baskets, rope, and household goods/interior products (lampshades, picture frames) by businesses launched by NGOs and entrepreneurs.## Woven products.American-Nigerian Achenyo Idachaba.


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

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Clepsis peritana. Clepsis peritana, the garden tortrix or strawberry garden tortrix, is a species of moth of the family Tortricidae. It is found in Spain, Cuba, as well as North America, where it has been recorded from southern Canada throughout the United States.The wingspan is 10–15 mm for males and 12–15 mm for females. The forewings are tan to brown. Males have a brown to dark-brown median fascia and a dark-brown costal spot. Females have similar markings but the median fascia and costal spot are less distinct. Adults have been recorded on wing from March to September, in several generations per year.The.

Clepsis peritana. larvae feed on "Chrysanthemum", "Cynara cardunculus", "Senecio jacobaea", "Stachys", "Fragaria", "Citrus", "Scrophularia californica" and "Solanum torvum". They live in silk tubes on the leaf surface. They feed on dead or decaying leaf litter, but will occasionally feed in the buds or fruits of living plants. Full-grown larvae reach a length of 13–14 mm. They have a light green abdomen, but the body colour can vary depending on the host plant. The head is yellowish brown.


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

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Buff-bellied hummingbird. The buff-bellied hummingbird (Amazilia yucatanensis) is a species of hummingbird in the "emeralds", tribe Trochilini of subfamily Trochilinae. It is found in Belize, Guatemala, Mexico, and the United States.## Taxonomy and systematics.The buff-bellied hummingbird has three subspecies, the nominate "A. y. yucatanensis", "A. y. chalconota", and "A. y. cerviniventris".## Description.The buff-bellied hummingbird is 10 to 11 (cm) long and weighs 2.9 to 4.7 (g). Adult males have a rosy reddish bill that is dusky at the end; females' have more dark on the maxilla. Adult males of the nominate subspecies have metallic bronze green upperparts that are duller and darker.


Question: What is the length of the incubation period (in day) of this bird's egg?

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Red-legged honeycreeper. c. tobagensis" Hellmayr & Seilern, 1914 – Tobago "C. c. cyaneus" (Linnaeus, 1766) – Trinidad, east Venezuela, the Guianas and north Brazil "C. c. dispar" Zimmer, JT, 1942 – southeast Colombia and southwest Venezuela to northeast Peru "C. c. violaceus" Zimmer, JT, 1942 – southeast Peru and west Brazil to central Bolivia "C. c. brevipes" (Cabanis, 1851) – central Brazil "C. c. holti" Parkes, 1977 – east Brazil## Description.The red-legged honeycreeper is on average 12.2 (cm) long, weighs 14 (g) and has a medium-long black, slightly decurved, bill. The male is violet-blue with black wings, tail and back, and bright.

Red-legged honeycreeper. a shrub or tree several meters above the ground. The cup-shaped nest has thin side walls and is formed of stiff fibres. It is attached to the supporting twigs with cobwebs. The clutch consists of two eggs that are laid in early morning on consecutive days. They are 13.4 x 19.1 (mm) in size and have a white background with brown speckles forming a ring around the larger end. The female incubates the eggs for 12 or 13 days. When they first hatch the nestlings have their eyes closed and are covered with tuffs of grey down. They are brooded.


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Chapel of the Resurrection (Valparaiso, Indiana). The Chapel of the Resurrection is the centerpiece structure on the campus of Valparaiso University in Valparaiso, Indiana. Primarily used to facilitate many Lutheran campus worship services, the Chapel of the Resurrection also serves as a site for convocations, musical performances, guest lectures, and commencement ceremonies.The chapel's chancel is 98 (ft) high and is circular in shape; the roof of the apse is shaped like a nine-pointed star. The nave is 58 (ft) high and 193 (ft) long. The building capacity is around 2000, although this number is flexible depending upon the configuration of the chairs, which recently replaced the.

Chapel of the Resurrection (Valparaiso, Indiana). pews. To the southwest of the Chapel lies the Brandt Campanile, a 12-bell tower rising 143 (ft) tall.Clearly visible from U.S. Route 30 and throughout the surrounding community, the building is located on the highest point of ground on the Valparaiso University campus and is a Northwest Indiana landmark.## History.Groundbreaking for the Chapel construction took place in 1956. The building was designed by the architectural firm Charles Stade and Associates of Park Ridge, Illinois, though certain elements and features (e.g., the stone baptistry, the stained glass windows, etc.) were designed by other artists. Peter Dohmen Studios of St. Paul, Minnesota.

Chapel of the Resurrection (Valparaiso, Indiana). designed the 95 (ft) high stained glass windows, as well as the marble interzia altar, and the mosaic at the entrance of the chapel. Adalbert Raphael Kretzmann, pastor and brother of Valparaiso University president O. P. Kretzmann, joined Charles Stade in the building's design.The altar is 20 (ft) long, made of various types of Italian marble. Peter Dohmen designed the inlaid marble pedestals to depict, with symbols, the four evangelists. Matthew is represented by an angel, Mark by a lion, John by an eagle, and Luke by an ox.Peter Dohmen learned his skills at the top art academies of Europe.

Chapel of the Resurrection (Valparaiso, Indiana). He became a well-known artist in Germany during the 1930s, executing major art works, such as stained glass windows, frescos on major public buildings, mosaics, etc. During the early 1940s he was blackballed by the government because of his outspoken opposition against the Nazi party. He emigrated to the United States with his family in 1951 and continued his artistic trade with great success. Amongst some of his major works are the stained glass windows in the library of the University of Notre Dame.Total construction costs of the chapel were about $7.5 million, much of which came through individual donations.The.

Chapel of the Resurrection (Valparaiso, Indiana). building was dedicated in 1959, part of Valparaiso University's centennial celebration, and officially designated as the Chapel of the Resurrection at the 10th anniversary service in 1969.In July and August 2005, the university built a medieval-style prayer labyrinth on the east side of the chapel, 64 feet in diameter. The university is adding 11000 (sqft) to the building in 2014, known as the Helge Center.## Organ.The Reddel Organ in the chapel was built by organ builder Herman Schlicker of Buffalo, New York. A contract for the organ was signed on September 27, 1957 at a cost of $68,000. These funds.

Chapel of the Resurrection (Valparaiso, Indiana). paid for about three-quarters of the entire specification, the price of which would have been $98,000. Paul Bunjes of Concordia College, River Forest, Illinois, was retained as consultant. The instrument was dedicated at the morning Eucharist on September 27, 1959, and was featured that evening in a recital by E. Power Biggs to a record audience of over 2,000 people. It was rebuilt and enlarged in 1995-1996 by Dobson Pipe Organ Builders of Lake City, Iowa.Chapel of the Resurrection—official websiteVirtual tour of the chapelOrgan history Coventry Cathedral, a church building in very similar style in Coventry, England Christ Church Lutheran.

Chapel of the Resurrection (Valparaiso, Indiana). (Minneapolis, Minnesota), an influence on the Chapel of the Resurrection, and whose pastor would become Valparaiso's Dean of the Chapel in 1964 First Unitarian Society of Madison Meeting House, a Frank Lloyd Wright-designed church building that influenced the chapel's design.


Question: Which geographic area is this bird found?

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Great kiskadee. The great kiskadee ("Pitangus sulphuratus"), called bem-te-vi in Brazil and benteveo in Argentina, is a passerine bird in the tyrant flycatcher family Tyrannidae. It is the only member of the genus Pitangus.It breeds in open woodland with some tall trees, including cultivation and around human habitation. It is mainly found in Belize, and from the Lower Rio Grande Valley in southern Texas and northern Mexico. Occurs throughout Brazil and Venezuela (especially the central and south-southeastern regions) south to Argentina and Uruguay, Paraguay and central Argentina, the Guyana coastline, and on Trinidad. It was introduced to Bermuda in 1957, and to.

Great kiskadee. 1914 – west and south Colombia "P. s. trinitatis" Hellmayr, 1906 – east Colombia, south and east Venezuela and northwest Brazil, Trinidad "P. s. sulphuratus" (Linnaeus, 1766) – the Guianas and north, west, central Amazonian Brazil, southeast Colombia and east Ecuador to southeast Peru "P. s. maximiliani" (Cabanis & Heine, 1859) – north, east Bolivia and west, central Paraguay to east and south Brazil "P. s. bolivianus" (Lafresnaye, 1852) – central Bolivia "P. s. argentinus" Todd, 1952 – east Paraguay, southeast Brazil and Uruguay to central Argentina## Description.The adult great kiskadee is one of the largest of the tyrant flycatchers.

Great kiskadee. It is 25 to 28 (cm) in length and weighs 53 to 71.5 (g). The head is black with a strong white supercilium and a concealed yellow crown stripe. The upperparts are brown, and the wings and tail are brown with usually strong rufous fringes. The bill is short, thick, and black in color. The similar boat-billed flycatcher ("Megarynchus pitangua") has a more massive black bill, an olive-brown back and very little rufous in the tail and wings. A few other tyrant flycatchers — the social flycatcher ("Myiozetetes similis"), for example — share a similar color pattern, but these species.

Great kiskadee. are markedly smaller.The call is an exuberant "BEE-tee-WEE", and the bird has an onomatopoeic name in different languages and countries: In Brazil its popular name is "bem-te-vi" ("I saw you well") and in Spanish-speaking countries it is often "bien-te-veo" ("I see you well") and sometimes shortened to "benteveo". In Venezuela it is called "cristofué" or "Christ did it".## Distribution and habitat.The great kiskadee occupies a wide range of habitats, from open grassland with scattered trees to urban areas. Its range extends from the Lower Rio Grande Valley in southern Texas south through Central America to southern Argentina. It does not.

Great kiskadee. occur in Chile. The great kiskadee was introduced to Bermuda in 1957. Two hundred birds were imported from Trinidad in an attempt to control the number of lizards, especially the tree lizard ("Anolis grahami") which had itself been introduced. The birds bred successfully and by 1976 the population on the island had expanded to around 60,000. The great kiskadee is omnivorous and has failed to control the number of lizards.## Behaviour and ecology.The great kiskadee is a common, noisy and conspicuous bird. It is almost omnivorous and hunts like a shrike or flycatcher, waiting on an open perch high in.

Great kiskadee. a tree to sally out and catch insects in flight or to pounce upon rodents and similar small vertebrates (such as other birds' chicks). It will also take prey (such as small lizards and frogs) and some fruit from vegetation by gleaning and jumping for it or ripping it off in mid-hover, and occasionally dives for fish or tadpoles in shallow water, making it one of the few fishing passerines. Kiskadees like to hunt on their own or in pairs, and though they might be expected to make good use of prey flushed by but too large for the smaller.

Great kiskadee. The nest is placed in a wide range of sites, often in an exposed position high up in a tree or on man-made structures. Occasionally the nest is placed in a cavity. The clutch is 3 to 4 eggs. These are moderately glossy, light yellowish cream in colour with purplish black and purplish brown spots. The average size is 27.9 x 20.0 (mm). Only the female incubates the eggs; the male guards the nest while she leaves the nest to feed. The eggs hatch after 16–17 days. The chicks are fed by both parents and fledge after 17–18 days.## Food.

Great kiskadee. London. Stiles, F. Gary & Skutch, Alexander Frank (1989): "A guide to the birds of Costa Rica". Comistock, Ithaca. Xeno-canto: audio recordings of the Great kiskadee Bermuda Online: Bermudian Fauna. Stamps (for Brazil, Argentina, British Honduras-(Belize), Guyana, Nicaragua, Suriname, Uruguay, Venezuela) at bird-stamps.org Great kiskadee Species Account – Cornell Lab of Ornithology.


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Thermometer. in medicine, and in scientific research.## History.While an individual thermometer is able to measure degrees of hotness, the readings on two thermometers cannot be compared unless they conform to an agreed scale. Today there is an absolute thermodynamic temperature scale. Internationally agreed temperature scales are designed to approximate this closely, based on fixed points and interpolating thermometers. The most recent official temperature scale is the International Temperature Scale of 1990. It extends from 0.65 (K) to approximately 1358 (K).## Early developments.Various authors have credited the invention of the thermometer to Hero of Alexandria. The thermometer was not a single invention,.

Thermometer. however, but a development.Hero of Alexandria (10–70 AD) knew of the principle that certain substances, notably air, expand and contract and described a demonstration in which a closed tube partially filled with air had its end in a container of water. The expansion and contraction of the air caused the position of the water/air interface to move along the tube.Such a mechanism was later used to show the hotness and coldness of the air with a tube in which the water level is controlled by the expansion and contraction of the gas. These devices were developed by several European scientists.

Thermometer. graduations based on the melting and boiling points of water as standards and, in 1694, Carlo Renaldini (1615–1698) proposed using them as fixed points along a universal scale. In 1701, Isaac Newton (1642–1726/27) proposed a scale of 12 degrees between the melting point of ice and body temperature.## Era of precision thermometry.In 1714, scientist and inventor Daniel Gabriel Fahrenheit invented a reliable thermometer, using mercury instead of alcohol and water mixtures. In 1724, he proposed a temperature scale which now (slightly adjusted) bears his name. In 1742, Anders Celsius (1701–1744) proposed a scale with zero at the boiling point and.


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

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Western whiptail. The western whiptail ("Aspidoscelis tigris") is a species of lizard in the family Teiidae. The species ranges throughout most of the southwestern United States and northern Mexico. Most of its populations appear stable, and it is not listed as endangered in any of the states comprising its range. It lives in a wide variety of habitats, including deserts and semiarid shrubland, usually in areas with sparse vegetation; it also may be found in woodland, open dry forest, and riparian growth. It lives in burrows. Major differences between this species and the checkered whiptail ("Aspidoscelis tesselatus") include the lack of enlarged.

Western whiptail. scales anterior to the gular fold and the presence of enlarged postantebrachial scales. It was previously known as "Cnemidophorus tigris", until phylogenetic analyses concluded that the genus "Cnemidophorus" was polyphyletic. Since it does not migrate, a number of forms have developed in different regions, several of which have been given subspecific names – for example the California whiptail, "Aspidoscelis tigris munda".## Description.The western whiptail has a long and slender body, small grainy scales on its back, and larger rectangular scales on its belly. The upper side often has light stripes, and the throat can be pinkish or somewhat orange in.

Western whiptail. containing both males and females, unlike other species of "Aspidoscelis" which are all-female. Usually in the northern end of its range, mating occurs in the first half of June, and females begin to lay eggs in late June. The eggs usually begin hatching by mid-August. Females will only lay one clutch (number of eggs laid at a single time) per year. At the southern end of its range, however, females will begin to lay eggs as early as May, and the eggs will usually hatch as early as mid-June. In the southern end of its range, females may also lay.

Western whiptail. lot of stored food. This is a tactic often used when the lizard is threatened by a domestic or feral cat.## Subspecies.Including the nominotypical subspecies, 16 subspecies of "Aspidoscelis tigris" are recognized as being valid."A. t. aethiops" "A. t. dickersonae" "A. t. disparilis" "A. t. multiscutata" "A. t. munda" "A. t. nigroriens" "A. t. pulchra" "A. t. punctata" "A. t. punctilinealis" "A. t. rubida" "A. t. septentrionalis" "A. t. stejnegeri" "A. t. tigris" "A. t. vandenburghi" "A. t. variolosa" "A. t. vivida" "Nota bene": A trinomial authority in parentheses indicates that the subspecies was originally described in a genus other.

Western whiptail. than "Aspidoscelis".## Etymology.The subspecific names, "dickersonae, stejnegeri", and "vandenburghi", are in honor of American herpetologists Mary Cynthia Dickerson, Leonhard Stejneger, and John Van Denburgh, respectively.www.natureserve.org — An excellent, well-documented site for information on this and other American species.Baird, Spencer F.; Girard, Charles (1852). "Characteristics of some New Reptiles in the Museum of the Smithsonian Institution". "Proc. Acad. Nat. Sci. Philadelphia" 6: 68–70. ("Cnemidophorus tigris", new species, p. 69).Behler, John L.; (1979). "The Audubon Society Field Guide to North American Reptiles and Amphibians". New York: Alfred A. Knopf. 743 pp. . ("Cnemidophorus tigris", pp. 563–564 + Plate 420).Conant, Roger (1975). "A.


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

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Six-spotted fishing spider. The six-spotted fishing spider (Dolomedes triton) is an arachnid from the nursery web spider family Pisauridae. This species is from the genus "Dolomedes", or the fishing spiders. Found in wetland habitats throughout North America, these spiders are usually seen scampering along the surface of ponds and other bodies of water. They are also referred to as dock spiders because they can sometimes be witnessed quickly vanishing through the cracks of boat docks. "D. triton" gets its scientific name from the Greek mythological god Triton, who is the messenger of the big sea and the son of Poseidon.## Description.This spider can.

Six-spotted fishing spider. has no significant nutritional benefit for females.## Enemies.While it remains unclear what preys most on the species, birds, bats, and fish are all thought to prey on "D. triton." The distinct camouflage coloration suggests that these spiders are preyed on by visual predators. Furthermore, pompilid and sphenoid wasps, which use sight when hunting, are thought to parasitize "Dolomedes" species.In a study focusing on the anti-predator behavior of females of the species, it was found that female boldness is positively correlated with female aggression for certain behaviors, principally aggression towards prey (crickets were used for the study) and pre-copulatory sexual cannibalism.


Question: What is this building named after?

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BMW Welt. The BMW Welt is a combined exhibition, delivery, adventure museum, and event venue located in Munich's district Am Riesenfeld, next to the Olympic Park, in the immediate vicinity of the BMW Headquarters and factory. It was built from August 2003 to summer 2007. A solar system with 800 kW of power is installed on the roof of the main building. The opening took place on 17 October 2007. The BMW Welt is the most visited tourist attraction in Bavaria.## Operations.BMW Welt operations are coordinated with the other local BMW facilities, the BMW Museum and BMW Headquarters. It has a showroom.

BMW Welt. with the current model lineup of BMW cars and motorcycles, and the other two BMW Group brands, Mini and Rolls-Royce. Customers picking up special ordered cars are given a dramatic "staged experience" in which they await their new car in an enormous glass-walled hall, and their cars are lifted up from lower levels on round elevator platforms. BMW Welt also has shops selling BMW-branded promotional merchandise and accessories, and a restaurant.## Design and construction.In 2001, an international architectural design competition was sponsored by BMW. Twenty-seven offices participated in the competition four of which were awarded prizes. The jury awarded two.

BMW Welt. offices Sauerbruch Hutton and COOP HIMMELB(L)AU first prize and made the recommendation for the competitors to rework their design submissions in a third design phase in order for BMW to determine which office would be awarded the contract.The contract was awarded to the Vienna-based architects COOP HIMMELB(L)AU and the facility was constructed from August 2003 through summer 2007 at a cost of US$200 million. Originally conceived to be open and ready for World Cup 2006, it eventually opened on 17 October 2007, and deliveries commenced on 23 October 2007. The first customer to take European delivery of a new BMW.

BMW Welt. at the Welt was Jonathan Spira.There were 2,200,000 visitors during the first 12 months of operation. The number of visitors increased to 2,930,000 in 2013, of which 60% came from Germany.Designed with an 800 kW solar plant on its roof, "the building does not have the boredom of an exhibition hall, it is not only a temple but also a market place and communication center, and a meeting point for knowledge transfer", said architect Wolf D. Prix at the opening ceremony.COOP HIMMELB(L)AU's BMW Welt project records are archived at the Canadian Centre for Architecture in Montreal, Quebec, Canada. World Architecture.

BMW Welt. Survey BMW-Welt on www.muenchenarchitektur.com BMW European Delivery wiki, on the Bimmerfest.com site.


Question: What is the source that produces this material?

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Tortoiseshell. Tortoiseshell or tortoise shell is a material produced from the shells of the larger species of tortoise and turtle, mainly the hawksbill sea turtle, which is a critically endangered species according to the IUCN Red List largely because of its exploitation for this trade. The large size, fine color, and unusual form of the hawksbill's scutes make it especially suitable. The distinctive patterning is referred to in names such as the tortoiseshell cat, several breeds of guinea pig, and the common names of several species of the butterfly genera "Nymphalis" and "Aglais", and some other uses.## Uses.Tortoiseshell was widely used.


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

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Edith's checkerspot. Edith's checkerspot ("Euphydryas editha") is a species of butterfly in the family Nymphalidae. It is a resident species of western North America and among the subspecies, entomologists have long been intrigued by their many phenotypic variations in coloration, wing length, and overall body size. Most populations are monophagous and rely on plants including "Plantago erecta" and "Orthocarpus densiflorus" as its host species in developing from eggs through to larvae, pupae, and mature butterflies. Males exhibit polygyny whereas females rarely mate more than once. Males devote most of their attention to mate acquisition, and such mate locating strategies such as hilltopping.

Edith's checkerspot. behavior has developed. Climate change and habitat destruction has impacted certain subspecies. Two subspecies in particular, "Euphydryas editha quino" and "Euphydryas editha bayensis", are currently under protection via the Endangered Species Act.## Description.The Edith's checkerspot can be identified by its wings which are black with red and pale yellow or white bands. It also has a submarginal band that consists of yellow or white spots along with a wide postmedian band that is red. The undersides of the wings consists of alternating bands of yellow orange and cream. The wingspan is 3.2-5.1 cm. However, the subspecies of Edith's checkerspot vary.

Edith's checkerspot. fully-grown butterfly. Thus, the paradox is that these larvae no longer prefer the cool slopes of host plants they grew up on, as it produces shade to restrict growth.## Predation.Caterpillars in the genus "Euphydryas" are usually attacked by one to three parasitoid species, often by a species of "Apanteles" wasp (Braconidae), a species of "Benjaminia" wasp (Ichneumonidae), and a tachnid fly. Checkerspot butterflies have developed defense mechanisms to prevent predators from attacking. Larvae twitch in unison to repel predators, and, depending on the host plant of the population, the larvae, pupae, and adult butterflies are somewhat poisonous to vertebrates because.

Edith's checkerspot. This is in contrast to higher latitude areas in Canada where less than twenty percent have disappeared. It has been found that population extinctions were four times as high along the southern boundaries (Baja and Mexico) than along the northern boundaries (Canada). In addition, extinctions are nearly three times as high at lower elevations below 8,000 feet (2,400 m) than at higher elevations from 8,000 to 12,500 feet (2,400–3,800 m). In agreement with global warming predictions, this extinction process has shifted the range of this butterfly both northward and upward in elevation since the 1800s.In the case of "Euphydryas editha.

Edith's checkerspot. that should be considered in reserve design and recovery management. Some sedentary checkerspots remain at their original habitats despite the continuation of human interference, and have evolved adaptations to deal with these changes.In January 1997, the subspecies "Euphydryas editha quino" and "Euphydryas editha bayensis" received federal protection under the Endangered Species Act. "Euphydryas editha bayensis" has also been given the Nature Conservancy global rank of T1, which means that there are very few individuals remaining.## Impact on humans.Edith's checkerspots lay their eggs on various plant species, sometimes resulting in the death of the host plant, which could be potentially economically.

Edith's checkerspot. important to humans. In addition, larvae, pupae, and adults are poisonous to vertebrates if ingested. A plus for humans involves pollination, because in order to obtain nectar, adult butterflies of the species sometimes pollinate various flowers in the area of their habitat.## Subspecies.This species is often better known by the constituent subspecies listed below. It is subject to change as the nomenclature is altered or new subspecies are found."Euphydryas editha alebarki" – Klots' checkerspot "Euphydryas editha augusta" – Augusta checkerspot"Euphydryas editha aurilacus" – Gold Lake checkerspot"Euphydryas editha baroni" – Baron's checkerspot"Euphydryas editha bayensis" – Bay checkerspot"Euphydryas editha beani" – Bean's.

Edith's checkerspot. checkerspot"Euphydryas editha bingi" – Bing's checkerspot"Euphydryas editha colonia" – Colonia checkerspot "Euphydryas editha editha" – Edith's checkerspot"Euphydryas editha edithana" – Strand's checkerspot"Euphydryas editha ehrlichi" – Ehrlich's checkerspot "Euphydryas editha fridayi" "Euphydryas editha hutchinsi" – Hutchins' checkerspot"Euphydryas editha gunnisonensis" – Gunnison checkerspot "Euphydryas editha karinae" "Euphydryas editha koreti" – Koret's checkerspot"Euphydryas editha insularis" – Island checkerspot"Euphydryas editha lawrencei" – Lawrence's checkerspot"Euphydryas editha lehmani" – Lehman Caves checkerspot"Euphydryas editha luestherae" – LuEsther's checkerspot"Euphydryas editha mattooni" – Mattoon's checkerspot"Euphydryas editha monoensis" – Mono Lake checkerspot"Euphydryas editha nubigena" – Cloud-born checkerspot "Euphydryas editha owyheensis" "Euphydryas editha quino" – Quino checkerspot"Euphydryas editha remingtoni" "Euphydryas editha.

Edith's checkerspot. rubicunda" – Ruddy checkerspot "Euphydryas editha tahoensis" – Lake Tahoe checkerspot"Euphydryas editha taylori" – Taylor's checkerspot"Euphydryas editha wrighti" – Wright's checkerspotBibliographyCommon Names, The International Lepidoptera Survey, The Taxonomic Report. Glassberg, Jeffrey "Butterflies through Binoculars: The West" (2001) Guppy, Crispin S. and Shepard, Jon H. "Butterflies of British Columbia" (2001) James, David G. and Nunnallee, David "Life Histories of Cascadia Butterflies" (2011) Pelham, Jonathan "Catalogue of the Butterflies of the United States and Canada" (2008) Pyle, Robert Michael "The Butterflies of Cascadia" (2002)Edith's checkerspot, Butterflies of Canada Butterflies and Moths of North America - "Euphydryas editha" Butterflies of America - "Euphydryas.


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

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Jujube. Jujube (), sometimes jujuba, known by the scientific name Ziziphus jujuba and also called red date, Chinese date, and Chinese jujube, is a species in the genus "Ziziphus" in the buckthorn family Rhamnaceae.## Description.It is a small deciduous tree or shrub reaching a height of 5 – 12 (m), usually with thorny branches. The leaves are shiny-green, ovate-acute, 2 – 7 (cm) long and 1 – 3 (cm) wide, with three conspicuous veins at the base, and a finely toothed margin. The flowers are small, 5 (mm) wide, with five inconspicuous yellowish-green petals. The fruit is an edible oval drupe.

Jujube. (1753). Philip Miller, in his "Gardener's Dictionary", considered that the jujube and its relatives were sufficiently distinct from "Rhamnus" to be placed in a separate genus (as it had already been by the pre-Linnaean author Tournefort in 1700), and in the 1768 edition he gave it the name "Ziziphus jujuba" (using Tournefort's spelling for the genus name). For the species name, he used a different name, as tautonyms (repetition of exactly the same name in the genus and species) are not permitted in botanical naming. However, because of Miller's slightly different spelling, the combination of the earlier species name (from.

Jujube. Linnaeus) with the new genus, "Ziziphus zizyphus", is "not" a tautonym, and was therefore permitted as a botanical name. This combination was made by Hermann Karsten in 1882. In 2006, a proposal was made to suppress the name "Ziziphus zizyphus" in favor of "Ziziphus jujuba", and this proposal was accepted in 2011. "Ziziphus jujuba" is thus the correct scientific name for this species.## Distribution and habitat.Its precise natural distribution is uncertain due to extensive cultivation, but its origin is thought to be in southern Asia, between Lebanon, northern India, and southern and central China, and possibly also southeastern Europe though.

Jujube. This wide tolerance enables the jujube to grow in mountain or desert habitats, provided there is access to underground water throughout the summer. The jujube ("Z. jujuba") grows in cooler regions of Asia. Five or more other species of "Ziziphus" are widely distributed in milder climates to hot deserts of Asia and Africa.This plant has been introduced in Madagascar and grows as an invasive species in the western part of the island, threatening mostly protected areas. It is cultivated in parts of southern California.## Ecology.Witch's broom, prevalent in China and Korea, is the main disease affecting jujubes, though plantings in.

Jujube. paste which was used as bread.In Persian cuisine, the dried drupes are known as "annab", while in neighboring Azerbaijan, it is commonly eaten as a snack, and is known as "innab". Confusion in the common name apparently is widespread. The "innab" is "Z. jujuba": the local name "ber" is not used for "innab". Rather, "ber" is used for three other cultivated or wild species, e.g., "Z. spina-christi", "Z. mauritiana" and "Z. nummularia" in parts of India and is eaten both fresh and dried. The Arabic name "sidr" is used for "Ziziphus" species other than "Z. jujuba".Traditionally in India, the fruits.


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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.


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Parka. A parka or anorak is a type of coat with a hood, often lined with fur or faux fur. This kind of garment is a staple of Inuit clothing, traditionally made from caribou or seal skin, for hunting and kayaking in the frigid Arctic. Some Inuit anoraks require regular coating with fish oil to retain their water resistance.The words "anorak" and "parka" have been used interchangeably, but they are somewhat different garments. Strictly speaking, an anorak is a waterproof, hooded, pull-over jacket without a front opening, and sometimes drawstrings at the waist and cuffs, and a parka is a hip-length.

Parka. is sometimes used as a mildly derogatory term.The word "parka" is derived from the Nenets language. In the Aleutian Islands the word simply means "animal skin". It first entered the English written record in a 1625 work by Samuel Purchas.The Inuit who speak Inuktitut use parkas and have various terms related to them as follows:## N-3B ("scrub snorkel" or "snorkel") parka.The original snorkel parka (USAF N-3B parka, which is 3/4 length and has a full, attached hood; the similar N-2B parka is waist-length and has an attached split hood) was developed in the United States during the early 1950s for.

Parka. pocket. It was invented by Noel Bibby of Peter Storm Ltd. in the early 1960s. It may have a full-zippered front opening, or pull over the head like an original anorak and close with snaps or a short zipper, has an integral hood, and elasticated or drawstring cuffs. In some versions, when rolled up, the hood doubles as a bag into which the rest of the coat is pushed. It became very popular in the United Kingdom during the 1970s.Anorak (slang)Capote (garment)Goggle jacketHoodieMackintoshYup'ik clothing"The Anorak", a play about the Montreal Massacre written and performed by Adam KellyA traditional Inuit parka.