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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: What is the closest upper taxonomy of this animal?

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Leopard. The leopard (Panthera pardus) is one of the five extant species in the genus "Panthera", a member of the cat family, Felidae. It occurs in a wide range in sub-Saharan Africa, in some parts of Western and Central Asia, Southern Russia, and on the Indian subcontinent to Southeast and East Asia. It is listed as Vulnerable on the IUCN Red List because leopard populations are threatened by habitat loss and fragmentation, and are declining in large parts of the global range. The leopard is considered locally extinct in Hong Kong, Singapore, South Korea, Jordan, Morocco, Togo, the United Arab Emirates,.

Leopard. Uzbekistan, Lebanon, Mauritania, Kuwait, Syria, Libya, Tunisia and most likely in North Korea, Gambia, Laos, Lesotho, Tajikistan, Vietnam and Israel.Contemporary records suggest that the leopard occurs in only 25% of its historical global range.Compared to other wild cats, the leopard has relatively short legs and a long body with a large skull. Its fur is marked with rosettes. It is similar in appearance to the jaguar ("Panthera onca"), but has a smaller, lighter physique, and its rosettes are generally smaller, more densely packed and without central spots. Both leopards and jaguars that are melanistic are known as black panthers. The.

Leopard. originally referred to a cheetah ("Acinonyx jubatus").'Panther' is another common name, derived from and ("pánthēr"); The generic name "Panthera" originates in , which refers to a hunting net for catching wild beasts that were used by the Romans in combats. "Pardus" is the masculine singular form.## Characteristics.The leopard's fur is generally soft and thick, notably softer on the belly than on the back. Its skin colour varies between individuals from pale yellowish to dark golden with dark spots grouped in rosettes. Its belly is whitish and its ringed tail is shorter than its body. Its pupils are round. Leopards living.

Leopard. patchy shadows, where it serves as camouflage.Its white-tipped tail is about 60 - 100 (cm) long, white underneath and with spots that form incomplete bands toward the tail's end.The guard hairs protecting the basal hairs are short, 3-4 (mm) in face and head, and increase in length toward the flanks and the belly to about 25 - 30 (mm). Juveniles have woolly fur, and appear to be dark-coloured due to the densely arranged spots. Its fur tends to grow longer in colder climates.The leopard's rosettes differ from those of the jaguar ("Panthera onca"), which are darker and with smaller spots.

Leopard. were as large as Barbary lions ("Panthera leo leo"). In 1913, an Algerian newspaper reported a leopard killed that allegedly measured about 275 (cm) in total length.The maximum weight of a wild leopard in Southern Africa was about 96 (kg). It measured 262 (cm). An Indian leopard killed in Himachal Pradesh in 2016 measured 261 (cm) with an estimated weight of 78.5 (kg); it was perhaps the largest known wild leopard in India.The largest skull of a leopard was recorded in India in 1920 and measured 28 (cm) in basal length, 20 (cm) in breadth, and weighed 2 (lb). The.

Leopard. were recorded between 1990 and 2015 in South Africa's Madikwe Game Reserve and in Mpumalanga. The cause of this morph known as a "strawberry leopard" or "pink panther" is not well understood.## Taxonomy."Felis pardus" was the scientific name proposed by Carl Linnaeus in 1758.The generic name "Panthera" was first used by Lorenz Oken in 1816, who included all the known spotted cats into this group.Oken's classification was not widely accepted, and "Felis" or "Leopardus" was used as the generic name until the early 20th century.The leopard was designated as the type species of "Panthera" by Joel Asaph Allen in 1902.In.

Leopard. 1917, Reginald Innes Pocock also subordinated the tiger ("P. tigris"), lion ("P. leo"), and jaguar ("P. onca") to "Panthera".## Subspecies.Following Linnaeus' first description, 27 leopard subspecies were proposed by naturalists between 1794 and 1956. Since 1996, only eight subspecies have been considered valid on the basis of mitochondrial analysis. Later analysis revealed a ninth valid subspecies, the Arabian leopard.In 2017, the Cat Classification Task Force of the Cat Specialist Group recognized the following eight subspecies as valid taxa:Results of an analysis of molecular variance and pairwise fixation index of 182 African leopard museum specimens showed that some African leopards exhibit.

Leopard. higher genetic differences than Asian leopard subspecies.## Evolution.Results of phylogenetic studies based on nDNA and mtDNA analysis showed that the last common ancestor of the "Panthera" and "Neofelis" genera is thought to have lived about . "Neofelis" diverged about from the "Panthera" lineage. The tiger diverged about , followed by the snow leopard about and the leopard about . The leopard is a sister taxon to a clade within "Panthera", consisting of the lion and the jaguar.Results of a phylogenetic analysis of chemical secretions amongst cats indicated that the leopard is closely related to the lion.The geographic origin of the.

Leopard. "Panthera" is most likely northern Central Asia. The leopard-lion clade was distributed in the Asian and African Palearctic since at least the early Pliocene. The leopard-lion clade diverged 3.1–1.95 million years ago. Additionally, a 2016 study revealed that the mitochondrial genomes of the leopard, lion and snow leopard are more similar to each other than their nuclear genomes, indicating that their ancestors hybridized with the snow leopard at some point in their evolution.Fossils of leopard ancestors were excavated in East Africa and South Asia, dating back to the Pleistocene between 2 and . The modern leopard is suggested to have.

Leopard. disappeared. There is considerable potential for human-leopard conflict due to leopards preying on livestock.Leopard populations on the Arabian Peninsula are small and fragmented. In southeastern Egypt, a leopard killed in 2017 was the first record in this area in 65 years.In western and central Asia, it avoids deserts, areas with long snow cover and proximity to urban centres.In the Indian subcontinent, the leopard is still relatively abundant, with greater numbers than those of other "Panthera" species. As of 2020, the leopard population within forested habitats in India's tiger range landscapes was estimated at 12,172 to 13,535 individuals. Surveyed landscapes included.

Leopard. of the Kalahari.Average daily consumption rates of 3.5 (kg) were estimated for males and of 2.8 (kg) for females. In the southern Kalahari Desert, leopards meet their water requirements by the bodily fluids of prey and succulent plants; they drink water every two to three days and feed infrequently on moisture-rich plants such as gemsbok cucumbers ("Acanthosicyos naudinianus"), watermelon ("Citrullus lanatus") and Kalahari sour grass ("Schmidtia kalahariensis").## Enemies and competitors.In parts of its global range, the leopard is sympatric with other large predators such as the tiger ("Panthera tigris"), lion ("P. leo"), cheetah, spotted hyena ("Crocuta crocuta"), striped hyena ("Hyaena.

Leopard. to Henry III by Holy Roman Emperor Frederick II. In modern times, leopards have been trained and tamed in circuses. Leopard pattern List of largest cats Panther (legendary creature) IUCN/SSC Cat Specialist Group: "Panthera pardus" in Africa and "Panthera pardus" in Asia.


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

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Pluteus cervinus. Pluteus cervinus, also known as Pluteus atricapillus and commonly known as the deer shield or the deer or fawn mushroom, is a mushroom that belongs to the large genus "Pluteus". It is found on rotten logs, roots and tree stumps and is widely distributed. It can also grow on sawdust and other wood waste. Being very variable in appearance, it has been divided into several varieties or subspecies, some of which are sometimes considered species in their own right. It is edible when young, but considered by some to be of poor quality and is not often collected for the.

Pluteus cervinus. table.## Taxonomy.The species name, "cervinus", although generally thought to refer to the colour of the cap, actually refers to antler-like protrusions on its prominent thick-walled pleurocystidia (of which there can be one to three).## Description.The cap ranges from in diameter. Initially it is bell-shaped, and often wrinkled when young. Later it expands to a convex shape. The cap can be deer-brown, but vary from light ochre-brown to dark brown, with a variable admixture of grey or black. The centre of the cap may be darker. The cap surface is smooth and matte to silky-reflective. The cap skin shows dark radial.

Pluteus cervinus. fibres when seen through a lens, indicating that the microscopic cuticle structure is filamentous. The gills are initially white, but soon show a distinctive pinkish sheen, caused by the ripening spores. The stipe is 5–12 cm long and 0.5–2 cm in diameter, usually thicker at the base. It is white and covered with brown vertical fibrils. The flesh is soft and white. The mushroom has a mild to earthy radish smell and a mild taste at first, which may become slightly bitter.The spore size is approximately 8×5μ, and the individual spores are elliptical and smooth. The spore print is salmon-pink.

Pluteus cervinus. to reddish brown.It grows on logs and stumps, and can be found most commonly in the spring and fall.## Similar species.The species looks similar to some dangerous "Entoloma" species, which also have pink spore prints but grow on the ground. Other similar species include "P. atromarginatus", "P. romellii", and "P. petasatus".List of "Pluteus" speciesThis article is partly translated from .Meinhard Moser: "Basidiomycetes II: Röhrlinge und Blätterpilze", Gustav Fischer Verlag Stuttgart (1978). English edition: translated by Simon Plant: "Keys to Agarics and Boleti" (Roger Phillips 1983)Régis Courtecuisse, Bernard Duhem : "Guide des champignons de France et d'Europe" (Delachaux & Niestlé, 1994-2000).


Question: What is the vertex figure of this object?

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Hexagon. of the circumscribed circle or circumcircle, which equals formula_1 times the apothem (radius of the inscribed circle). All internal angles are 120 degrees. A regular hexagon has six rotational symmetries ("rotational symmetry of order six") and six reflection symmetries ("six lines of symmetry"), making up the dihedral group D6. The longest diagonals of a regular hexagon, connecting diametrically opposite vertices, are twice the length of one side. From this it can be seen that a triangle with a vertex at the center of the regular hexagon and sharing one side with the hexagon is equilateral, and that the regular hexagon.

Hexagon. adding alternating squares and equilateral triangles around it. This pattern repeats within the rhombitrihexagonal tiling.## Self-crossing hexagons.There are six self-crossing hexagons with the vertex arrangement of the regular hexagon:## Hexagonal structures.From bees' honeycombs to the Giant's Causeway, hexagonal patterns are prevalent in nature due to their efficiency. In a hexagonal grid each line is as short as it can possibly be if a large area is to be filled with the fewest hexagons. This means that honeycombs require less wax to construct and gain much strength under compression.Irregular hexagons with parallel opposite edges are called parallelogons and can also tile.

Hexagon. the plane by translation. In three dimensions, hexagonal prisms with parallel opposite faces are called parallelohedrons and these can tessellate 3-space by translation.## Tesselations by hexagons.In addition to the regular hexagon, which determines a unique tessellation of the plane, any irregular hexagon which satisfies the Conway criterion will tile the plane.## Hexagon inscribed in a conic section.Pascal's theorem (also known as the "Hexagrammum Mysticum Theorem") states that if an arbitrary hexagon is inscribed in any conic section, and pairs of opposite sides are extended until they meet, the three intersection points will lie on a straight line, the "Pascal line.

Hexagon. of that configuration.## Cyclic hexagon.The Lemoine hexagon is a cyclic hexagon (one inscribed in a circle) with vertices given by the six intersections of the edges of a triangle and the three lines that are parallel to the edges that pass through its symmedian point.If the successive sides of a cyclic hexagon are "a", "b", "c", "d", "e", "f", then the three main diagonals intersect in a single point if and only if .If, for each side of a cyclic hexagon, the adjacent sides are extended to their intersection, forming a triangle exterior to the given side, then the segments.

Hexagon. connecting the circumcenters of opposite triangles are concurrent.If a hexagon has vertices on the circumcircle of an acute triangle at the six points (including three triangle vertices) where the extended altitudes of the triangle meet the circumcircle, then the area of the hexagon is twice the area of the triangle.## Hexagon tangential to a conic section.Let ABCDEF be a hexagon formed by six tangent lines of a conic section. Then Brianchon's theorem states that the three main diagonals AD, BE, and CF intersect at a single point.In a hexagon that is tangential to a circle and that has consecutive sides.

Hexagon. "a", "b", "c", "d", "e", and "f",formula_16## Equilateral triangles on the sides of an arbitrary hexagon.If an equilateral triangle is constructed externally on each side of any hexagon, then the midpoints of the segments connecting the centroids of opposite triangles form another equilateral triangle.## Skew hexagon.A skew hexagon is a skew polygon with six vertices and edges but not existing on the same plane. The interior of such an hexagon is not generally defined. A "skew zig-zag hexagon" has vertices alternating between two parallel planes.A regular skew hexagon is vertex-transitive with equal edge lengths. In three dimensions it will be.


Question: Which structure replaced this bridge?

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Franz Joseph Bridge. Franz Joseph Bridge (), later renamed Štefanik Bridge (), was a suspension bridge over the Vltava in Prague, opened in 1868.The bridge was designed by the English engineer Rowland Mason Ordish. The design, which used the Ordish–Lefeuvre system, was originally created for the Albert Bridge over the River Thames in London. However, after construction of the Albert Bridge was delayed, Ordish decided to build a bridge in Prague first. The foundation stone was laid on 19 October 1865, and engineer František Schön was charged with supervising the construction work. Emperor Franz Joseph, after whom the bridge was named, attended the.


Question: Which place is this animal endemic to?

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Cane toad. The cane toad (Rhinella marina), also known as the giant neotropical toad or marine toad, is a large, terrestrial true toad native to South and mainland Central America, but which has been introduced to various islands throughout Oceania and the Caribbean, as well as Northern Australia. It is a member of the genus "Rhinella", which includes many true toad species found throughout Central and South America, but it was formerly assigned to the genus "Bufo".The cane toad is an old species. A fossil toad (specimen UCMP 41159) from the La Venta fauna of the late Miocene in Colombia is indistinguishable.

Cane toad. from modern cane toads from northern South America. It was discovered in a floodplain deposit, which suggests the "R. marina" habitat preferences have long been for open areas. The cane toad is a prolific breeder; females lay single-clump spawns with thousands of eggs. Its reproductive success is partly because of opportunistic feeding: it has a diet, unusual among anurans, of both dead and living matter. Adults average 10 – 15 (cm) in length; the largest recorded specimen had a snout-vent length of 24 (cm).The cane toad has poison glands, and the tadpoles are highly toxic to most animals if ingested.

Cane toad. "Dominican toad", "giant marine toad", and "South American cane toad". In Trinidadian English, they are commonly called "crapaud", the French word for toad.The genus "Rhinella" is considered to constitute a distinct genus of its own, thus changing the scientific name of the cane toad. In this case, the specific name "marinus" (masculine) changes to "marina" (feminine) to conform with the rules of gender agreement as set out by the International Code of Zoological Nomenclature, changing the binomial name from "Bufo marinus" to "Rhinella marina"; the binomial "Rhinella marinus" was subsequently introduced as a synonym through misspelling by Pramuk, Robertson, Sites,.

Cane toad. and Noonan (2008). Though controversial (with many traditional herpetologists still using "Bufo marinus") the binomial "Rhinella marina" is gaining in acceptance with such bodies as the IUCN, Encyclopaedia of Life, Amphibian Species of the World and increasing numbers of scientific publications adopting its usage.Since 2016, cane toad populations native to Mesoamerica and northwestern South America are sometimes considered to be a separate species, "Rhinella horribilis".In Australia, the adults may be confused with large native frogs from the genera "Limnodynastes", "Cyclorana", and "Mixophyes". These species can be distinguished from the cane toad by the absence of large parotoid glands behind their.

Cane toad. toads lose the toxicity that protected them as eggs and tadpoles, but have yet to fully develop the parotoid glands that produce bufotoxin. Only an estimated 0.5% of cane toads reach adulthood, in part because they lack this key defense - but also due to tadpole cannibalism. Although cannibalism does occur in the native population in South America, the rapid evolution occurring in the unnaturally large population in Australia has produced tadpoles 30x more likely to be "interested" in cannibalising their siblings, and 2.6x more likely to actually "do so". They have also evolved to shorten their tadpole phase in.

Cane toad. Saw-shelled Turtles have also been seen successfully and safely eating cane toads.## Distribution.The cane toad is native to the Americas, and its range stretches from the Rio Grande Valley in South Texas to the central Amazon and southeastern Peru, and some of the continental islands near Venezuela (such as Trinidad and Tobago). This area encompasses both tropical and semiarid environments. The density of the cane toad is significantly lower within its native distribution than in places where it has been introduced. In South America, the density was recorded to be 20 adults per 100 m (109 yd) of shoreline, 1.

Cane toad. in spite of the failure of the earlier introductions. On September 8, 2013, the cane toad was also discovered on the island of New Providence in the Bahamas.## The Philippines.The cane toad was first introduced deliberately into the Philippines in 1930 as a biological control agent of pests in sugarcane plantations, after the success of the experimental introductions into Puerto Rico. It subsequently became the most ubiquitous amphibian in the islands. It still retains the common name of "bakî" or "kamprag" in the Visayan languages, a corruption of 'American frog', referring to its origins. It is also commonly known as.

Cane toad. 17 months. The toads were sent to the other islands, and more than 100,000 toads were distributed by July 1934; eventually over 600,000 were transported.## Uses.Other than the use as a biological control for pests, the cane toad has been employed in a number of commercial and noncommercial applications. Traditionally, within the toad's natural range in South America, the Embera-Wounaan would "milk" the toads for their toxin, which was then employed as an arrow poison. The toxins may have been used as an entheogen by the Olmec people. The toad has been hunted as a food source in parts of.


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

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Ratite. A ratite () is any of a diverse group of mostly flightless, large, long-necked, and long-legged birds of the infraclass Palaeognathae. Kiwi, the exception, are much smaller and shorter-legged and are the only nocturnal extant ratites.The systematics of and relationships within the paleognath clade have been in flux. Previously, all the flightless members had been assigned to the order Struthioniformes, which is more recently regarded as containing only the ostrich. The modern bird superorder Palaeognathae consists of ratites and the flighted Neotropic tinamous (compare to Neognathae). Unlike other flightless birds, the ratites have no keel on their sternum — hence.


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

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Eustoma russellianum. Eustoma russellianum is a species of flowering plant in the gentian family. Its previous binomial name was "Eustoma grandiflorum". Common names include Texas bluebells, Texas bluebell, bluebell, showy prairie gentian, prairie gentian, and Lisianthus.There is a cultivar, 'Bolero Deep Blue'.## Description."Eustoma russellianum" has blue-green waxy leaves and showy bell shaped flowers in blue pink or white each borne singly on an upright plant. Depending on where it grows it may present as an annual, biennial or perennial plant.## Distribution and habitat.It is found primarily in the Great Plains region of North America, from Wyoming southeast to Nebraska, and south to.

Eustoma russellianum. Texas and Mexico. Due to its popularity and the frequency it's picked, it has been unable to naturally reseed itself in its native distribution.It prefers moist, sandy soils and often grows near streams or creek-beds.## Cultivation.Texas bluebell is a popular garden flower, and has been cultivated in Japan for over 70 years. Many varieties, including those with double petals, or a variety of colored flowers, have been developed.Common Names of Diseases, The American Phytopathological Society.


Question: What is the location of this building?

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Brabo Fountain. The Brabo Fountain () is located in the Grote Markt (Main Square) of Antwerp, in front of the Town Hall of the city. The ceremonial inauguration of the sculpture took place in 1887. Jef Lambeaux realized the set of the bronze fountain.The reason is the legend of the name of the city, in which it is said that the giant Druon Antigoon cut off a hand to all the ship captains who moored in the area and refused to pay toll, then throwing it to the Scheldt. The captain of the Roman army Brabo cut off the giant's hand imitating.


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

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Bushshrike. by Storrs Olson, who reports that Swainson used the term "Malaconoti" as a non-defining plural, and placed the genus in the Thamnophilinae within the shrike family Laniidae.Peters regarded the group as a subfamily, Malaconotinae, of the shrikes. In 1971, the group was raised to family status, with their resemblance to typical shrikes considered to be more a result of convergent evolution.Bushshrikes, helmetshrikes (Prionopidae), ioras (Aegithinidae), vangas (Vangidae) and the Australian butcherbirds, magpies and currawongs (Cracticidae) and woodswallows (Artamidae) are part of a large group of shrike-like birds distributed from Africa to Australia, which have been defined as the superfamily Malaconotoidea.


Question: Where is this animal native to?

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Pseudacris sierra. The Sierran chorus frog or Sierran treefrog ("Pseudacris sierra") has a range from the West Coast of the United States from Central California inland through Idaho. They live from sea level to more than 10,000 feet in many types of habitats, reproducing in aquatic settings. They occur in shades of greens or browns and can change colors over periods of hours and weeks.## Taxonomy.The naming of this frog has a very confusing history. These frogs have long been known as Pacific chorus frogs "Pseudacris regilla". Then, in 2006, Recuero et al. split that taxonomic concept into three species. Recuero et.


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Blenheim Palace. Duke's death.The palace has been Grade I listed on the National Heritage List for England since August 1957.## Palace chapel.The palace chapel, as a consequence of the Duke's death, now obtained even greater importance. The design was altered by the Marlboroughs' friend the Earl of Godolphin, who placed the high altar in defiance of religious convention against the west wall, thus allowing the dominating feature to be the Duke's gargantuan tomb and sarcophagus. Commissioned by the Duchess in 1730, it was designed by William Kent, and statues of the Duke and Duchess depicted as Caesar and Caesarina adorn the great.


Question: What country does this place belong to?

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Buses in Malta. Buses were introduced to Malta in 1905. As well as providing public transport across the country, up until 2011, the traditional Malta bus (Maltese: "xarabank" or "karozza tal-linja") served as a popular tourist attraction due to their unique appearances grounded in the bus ownership and operation model employed in the country; by the end of this traditional operation, Malta had several bus types no longer in service anywhere else in the world.The unique nature of the Malta bus stemmed from the tradition of local ownership of the buses by the drivers, and their historic practice of customising them. In addition.

Buses in Malta. to a high degree of customisation, detailing and decoration, several Malta buses also had a unique appearance due to the practice of in-house maintenance, rebuilding or modifying of bus bodies in local workshops.As an iconic feature of the country, the classic Malta bus features on several tourist related items. As the main mode of public transport across the country, the Malta bus was also used by many tourists to visit the different parts of the country. While newer Malta buses were progressively introduced that followed modern standard bus designs found elsewhere, customisation and detailing had continued for these buses as.

Buses in Malta. well.On 3 July 2011, the network of service bus routes across Malta was taken over by Arriva, with traditional buses reduced to operating on only special heritage services.Arriva introduced a fleet of modern low-floor buses, importing second hand ex-London articulated Mercedes-Benz Citaros, retaining and repainting some of the 'newest' buses from the old fleet in Arriva colours as well as purchasing a fleet of brand new King Long rigid buses. Arriva's operation in Malta was beset by problems; three fires within a 48-hour period in August 2013 prompted the Maltese government to ban the articulated Citaros from operation in the.

Buses in Malta. country pending an investigation.Arriva operation in Malta continued until 1 January 2014, when the nation's bus network was nationalised as Malta Public Transport. On 8 January 2015, Malta Public Transport was reprivatised as it was sold to Autobuses Urbanos de León (an ALSA subsidiary), who retained the Malta Public Transport brand name. The company doubled the bus fleet, which now consists of more than 400 buses.Malta Public Transport has invested extensively in modernizing its bus fleet making it safer, more environmentally friendly, and more comfortable. The company invested in 200 new buses with the latest Euro VI diesel technology. The.

Buses in Malta. buses are cleaned and maintained regularly, and are equipped with air-conditioning systems for added comfort. All the new buses have two doors to facilitate boarding and alighting of passengers.## Original bus system (1905–2011).## History.The first buses were imported to Malta in 1905 from Thornycroft in England by Edward Agius of Ed T Agius Ltd (coal shipping). He formed the Malta Motor Omnibus and Transport Syndicate Ltd with his brother-in-law Joseph Muscat to operate the first bus service between Valletta and St Julians. As early as 1920, bus manufacturing was taking place on the island, with local carpenters and mechanics constructing.

Buses in Malta. bus body coachwork for local transport companies.In the 1920s, operation of buses on public transport routes was subject to open competition between operators, and as such, buses used were not necessarily well turned out. With the formation of the Traffic Control Board in 1931, greater regulation and discipline of the system meant that operators began to upgrade the appearance of their buses. Since then, the tradition of showing pride in the vehicles has been maintained, through decoration and customisation of the buses.Since reform in the 1970s, bus operation was centralised under a worker cooperative, the Public Transport Association, or "Assoċjazzjoni.

Buses in Malta. Trasport Pubbliku" (ATP), in 1977. This association became responsible for the centralised day-to-day operational management of bus services, producing a unified timetable roster and basic livery, although this did not change the ownership arrangements for the buses. The overall transport system was regulated under the Malta Transport Authority (ADT).In December 2003, in light of over 100 buses being scrapped, a government subsidised tour bus service using traditional Malta buses, as the "VisitMalta bus", was set up by the tourism and transport ministries, although this was withdrawn in April 2005.While the buses generally remain popular among tourists and nostalgic Maltese, the.

Buses in Malta. original system was infamous and unpopular with some parts of the local population who considered the service as inefficient and polluting, driven by drivers who were sometimes very impolite to passengers. This resulted in a significant increase in private car ownership among the population, and today only one in ten trips are made via public transportation. One extreme case to note occurred on 29 June 2010, when a driver attempted to forcibly pull a Spanish tourist out of her seat and off the bus following a row over seven cents in change.## Operational system.The operation model dated back to a.

Buses in Malta. system introduced in 1977. The ATP authority determined the schedules, which were then operated by the private bus owners, who remained responsible for the condition and upkeep of their buses, either as owner operators, or in groups. As such, several buses were kept at the family homes of the drivers in question, or based in small garage locations.To ensure fair distribution of both good and bad routes, the daily operation of buses was allocated on a rota basis, with buses operating on a 'day on, day off' basis, whereby one day half of the buses operate on the public routes,.

Buses in Malta. while the other half were used for private hire, or as school buses, or undergo maintenance.Malta buses on public transport duties were seen in high concentrations at the main City Gate Square bus terminus at Valletta surrounding the Triton Fountain, from where the vast majority of scheduled routes departed. Other major centres of traffic included Buġibba, St Paul's Bay, Sliema and Mosta.## Former liveries and types.Early buses wore an olive green livery with a black stripe. In the 1930s, buses were painted different colours according to the route they operated. In 1975 buses were painted green, and from 1995 vehicles.

Buses in Malta. carried in a yellow (lower) and white (upper) livery, relieved by a red band just below the window line. Gozo buses were grey with a red band below the window.All Malta buses immediately prior to the 2011 reform were single-deckers, with bus or coach bodies. Early buses did not have many common transit bus features, with route numbers displayed using white cards. Later buses had modern features such as electronic destination displays, but these were still not used to indicate the bus's destination, showing only the number of the route.Very early types of bus could still be found but no.

Buses in Malta. longer in service, with a front engine mounted in an extended bonneted nose, in the style of some conventional trucks. The majority of classic Malta buses had elaborate grilles and headlight arrangements, curved windscreens and sloping roofs. Later makes of bus were usually of conventional bus and coach designs that were in use elsewhere in the world, such as Plaxton Supreme and Duple Dominant bodywork.Between 1981 and 1987 the fleet was drastically modernised with the import of over 260 second hand buses from the United Kingdom. Many of the oldest buses in the fleet were further replaced with the influx.

Buses in Malta. of 150 new low-floor buses from China and Turkey, financed with government grant aid, leaving just three normal control vehicles.Second hand imports from the UK had continued up to 2008, with some of the last examples being Alexander Dash bodied Volvo B6s deemed surplus after Stagecoach's takeover of Yorkshire Traction. Even with these fleet modernisations, the nearly 500 strong bus fleet still contained some examples dating from the 1950s which remained in operational service as recently as 2011, prior to the bus reform.## Detailing.Malta buses were characterised by their high level of customisation and detailing. Common additions to former route.

Buses in Malta. buses included: Increased use chrome parts / high polishing of chrome parts, such as hubcaps and grilles Paint detailing, both generally, and of parts such as indicators and filler caps Custom passenger messages, both in the interior and exterior of the bus Names relating to the village patron saint, monarchs, or other notable objects. Trimmings and hangings, especially inside the front window Slogans, murals, quotations and lucky images (such as the horseshoe)Due to the nature of operation of Malta buses, many of the drivers were also mechanics, and a high number of Malta buses proudly displayed the name of the.

Buses in Malta. manufacturer of the chassis or body of the bus, or the engine type used. In some instances though, these names are not actually the name of the bus in question.## Preservation.The preservation organisation Heritage Malta purchased 90 buses after the restructuring of the bus network and is currently in the process of restoring them to their original condition and preserving their customised modifications. These efforts were aided by expertise and parts provided by many of the vehicle's former owners. It is planned that these newly renovated buses will then be exhibited in an industrial heritage museum.Since 2011, various of the.

Buses in Malta. old buses have been repainted in their original pre-1975 colours. A notable example is the Gozo Mail Bus which was painted red with a white stripe.MaltaPost issued a set of 20 postage stamps to commemorate the withdrawal of service of the traditional Malta buses on 2 July 2011, a day before the restructure. The stamps showed Maltese buses in the different colours which existed for the different routes.## Arriva (2011–2013).A major restructure of the bus service in Malta took place on 3 July 2011. The network was taken over by Arriva, new low-floor buses were introduced and service and fare.

Buses in Malta. structures changed dramatically.Halcrow Group was commissioned to assess the Malta bus system. Released in November 2005, the report criticizing the existing model and arrangement between ADT and ATP, which had produced a very low utilization of buses and a decline of 50% in the number of bus passengers between 1979 and 2009.Finalized plans were announced in December 2008 for the first bus route restructuring on Malta since 1977. Under European Union rules, the right to operate the new network could not be directly transferred to the ATP, although they were free to tender for the contract. This resulted in the.

Buses in Malta. end of the state-subsidized owner-operator model, which as of 2009 stood at 508 buses each with an average age of 35 years, and operated by over 400 independent licensees.The new fleet controlled by Arriva consisted of 264 buses, including 2 seven-metre buses for the intra-Valletta route, 61 nine-metre buses including 10 hybrid electric buses for park & ride services as well as selected village routes (Mater Dei-Ta' Qali, Paola-Xgħajra-Paola), 153 twelve metre buses, and 46 articulated buses for airport routes and major routes such as those to Sliema, Malta International Airport and the ferry terminals.The new system increased the number.

Buses in Malta. of available bus seats by 6,600 to 20,500, and the number of bus stops in Malta to 850 plus another 120 in Gozo.The major benefits to the public for the change were presented in November 2010: €3.5m less per year in Malta government subsidy First ever all day bus service in Gozo, 7 days a week One fare everywhere Cheap weekly fares for non-residents New buses (for 70% of the fleet) All buses with less polluting Euro V engines Substantially lower emissions All buses fully accessible Air-conditioning and CCTV on all buses More routes, more frequent More termini, more interchanges.

Buses in Malta. Longer operating hours for all routes Night service Maximum waiting times for all routes Schedules and bus arrival times an SMS away More information on buses and bus stops More employment More discipline Better trained drivers An aquamarine coloured liveryThe bus fleet, all in Arriva's standard aquamarine and cream livery, was composed of Euro V King Long buses along with Arriva London's Mercedes-Benz Citaro G articulated buses. Some of the newer buses from the previous operator had also been introduced into the new system. The network receives a subsidy of around €6 million per year. Passengers holding Maltese ID cards.

Buses in Malta. receive a 40% reduction of the price of their journeys due to subsidised fares, while non-ID card holders (including tourists) pay the full undiscounted fare, prompting the European Commission to launch an inquiry on whether the two-tiered price structure violates EU discrimination laws.The commencement of Arriva's services on 3 July 2011 was marred by many buses departing late or failing to turn up, primarily due to the absence of over 70 drivers who were due to transfer from the previous driver-owner system. This resulted in large crowds building up at Valletta's new bus terminus as well as other termini and.

Buses in Malta. stages across Malta.Other issues increased the delays, such as incorrect or non-operational route information on buses and mechanical faults. Arriva has also received criticism over the overhauled routes and timetables, which has increased journey times for some passengers.During the first week of the new system, up to 180 drivers, most of whom had previously worked on the old network, failed to appear for duties. They cited Arriva's use of split-shifts as the reason for their non-appearance, as these had reportedly not been part of the conditions they had agreed to work under. Their actions received some criticism, with politician Emanuel.

Buses in Malta. Delia accusing the drivers of attempting to sabotage services so that the new system would be abandoned. Arriva responded by drafting in seventy temporary drivers from its UK operation and trained further Maltese drivers to cover for the missing employees. Some services were subcontracted to other companies.A new shift pattern took effect at the end of July 2011. A series of changes to the new routes in response to criticism were announced on 23 July 2011, to be implemented between July and October. In August 2011, Arriva recognised the General Workers’ Union as a representative of its employees in the.

Buses in Malta. country. Further changes affecting 112 routes were announced in October by transport minister Austin Gatt, introducing more buses to Valletta and Mater Dei Hospital.Arriva has been harshly criticized both by commuters and by the government agency Transport Malta for consistently failing to keep up standards. On 14 November 2012, Arriva was harshly reprimanded by Transport Malta and given until the end of the month to bring up all its routes to 100% efficiency before TM deploys its own shuttles at Arriva's expense.In August 2013, the Government of Malta instructed Arriva Malta to remove the articulated buses from service, pending investigation.

Buses in Malta. following three major fire outbreaks in the span of 48 hours. The fires destroyed the buses and in one case caused extensive damage to some nearby vehicles belonging to MaltaPost, the country's postal operator. Nobody was injured in these incidents. Like in the UK when the same buses had caught fire, these buses became a popular joke in conversations and social media sites.By the end of December 2013 Arriva had run up losses of €50 million in two and a half years.## Malta Public Transport (2014–present).On 1 January 2014 Arriva ceased operations in Malta having been nationalised as "Malta Public.

Buses in Malta. Transport" by the Maltese government, with the intention of reprivatising the system under a new operator once one could be found.Initially the buses, routes, livery, and tickets remained the same, but soon after the Arriva logos on buses were removed. New tickets with the name of the new company were introduced, and there were some minor changes in routes. By April 2014, three companies had submitted bids to operate the new bus services, these being Autobuses Urbanos de León, Gozo First, and Island Buses Malta.In May 2014 eleven new buses arrived in Malta, leased as the first part of a.

Buses in Malta. temporary new fleet of 45 buses to operate for Malta Public Transport. They were put to service in June 2014, and they were painted white with a small logo of Malta Public Transport.As of October 2014 the government has chosen Autobuses Urbanos de León, subsidiary of ALSA Group, as its preferred bus operator for the country. The company took over the bus service on 8 January 2015, while retaining the name "Malta Public Transport". The buses leased in the summer of 2014 were returned and the existing fleet was rebranded with a white and lime green livery.Malta Public Transport has.

Buses in Malta. invested extensively in modernizing its bus fleet making it safer, more environmentally friendly, and more comfortable. The company invested in 200 new buses with the latest Euro 6 diesel technology. The buses are cleaned and maintained regularly, and are equipped with air-conditioning systems for added comfort. All the new buses have two doors to facilitate boarding and alighting of passengers.In the summer of 2015, the company introduced the personalised "Tallinja Card" smart card which provided cheaper fares and faster boarding to Maltese residents. By 2019, over 320,000 individuals had a personalised tallinja card. Bus use increased by around 20% following.

Buses in Malta. the introduction of the card.## Open-top buses.Open-top bus operation on Malta was first proposed in the early 1990s, when several double-deck vehicles were imported from the United Kingdom by private company Garden of Eden. The Transport Authority refused to license their operation as passengers standing on the top deck could reach a height over four metres, the maximum level allowed. In June 2007, this decision was reversed and two tourist services, a north tour and a south tour, began operation using eight open-top vehicles and this has since been expanded with a similar tour on Gozo introduced.Customised busesList of bus.

Buses in Malta. routes in MaltaTransport in MaltaVehicle registration plates of MaltaMalta Public TransportPictures of Malta buses fan siteMalta & Gozo Route Buses fan siteItalian documentary about Maltese buses.


Question: What is this building dedicated to?

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Manila Cathedral. The Minor Basilica and Metropolitan Cathedral of the Immaculate Conception (; ), also known as the Manila Cathedral (), is the cathedral of Manila and basilica located in Intramuros, the historic walled city within today's modern city of Manila, Philippines. It is dedicated to the Immaculate Conception of the Blessed Virgin Mary as the Patroness of the country. The cathedral serves as the episcopal seat of the Archbishop of Manila.The cathedral was originally a parish church in Manila under the Archdiocese of Mexico in 1571, until it became a separate diocese on February 6, 1579, upon the issuance of the.

Manila Cathedral. "The Purest and Immaculate Conception of Mary", while Miguel López de Legazpi consecrated the city of Manila to Saint Potenciana. Pope Pius XII on 12 September 1942 reiterated this patronage for the Filipino people to "La Purísima Inmaculada Concepción" through the papal bull "Impositi Nobis", while Saint Rose of Lima and Saint Potenciana remained as the secondary patronesses of the Filipino people. The same Pontiff through "“Quidquid ad Dilatandum”" reiterated this declaration of patronage on 16 July 1958 through the chancellor of apostolic briefs, Gildo Brugnola, who signed and executed the decree. Artemio Gabriel Casas, (1956–1962) Jose C. Abriol, P.A.

Manila Cathedral. medallion bearing the papal arms has been placed beneath the cross of the façade. The scarlet galeros of Cardinals Rufino Santos and Jaime Sin are also suspended from the ceiling of the dome. In addition, a copy of the "Saint Peter Enthroned" statue of St. Peter's Basilica is enshrined inside, across a polychrome life-sized statue of the Immaculate Conception.Prior to 1988, the bronze statue of the Immaculate Conception in the main altar, by national Italian sculptor Vincenzo Assenza, was painted gold until 1988 (though the twelve star halo-aureola is solid gold). Inscribed on the baldachin above the statue of the.

Manila Cathedral. Immaculate Conception is the Latin antiphon "Tota pulchra es, Maria, et macula originalis non est in Te" (English: "Thou art all-beautiful, Mary, and the original stain [spot] (of sin) is not in thee.").The baptismal font and angel-shaped holy water fonts are also made of solid bronze by Publio Morbiducci; the prominent mosaic of Saint Jude Thaddeus was made by Marcello Mazzoli. The 134 modern stained glass windows were made in 1964 by Filipino artist Galo Ocampo. The window set, which was a programme of Marian themes, was commissioned and funded by Cardinal Santos.The artistic designs of the stained glass windows.


Question: In which country has drainage or the border the body of water of the lake in the image?

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Pfäffikersee. Pfäffikersee (or "Lake Pfäffikon") is a lake in the canton of Zürich, Switzerland, near the town of Pfäffikon. It is 2.5 km long and 1.3 km wide at the middle. The lake was created in the last ice age when a moraine blocked off the ability for the lake to empty north towards Winterthur. There is also a hiking trail around the lake that people often bike and walk on, and the area is considered protected lands, among them the "Robenhauser Ried" and the prehistoric settlement Wetzikon–Robenhausen, discovered and researched by Jakob Messikommer (1828–1917), which became a serial site of.

Pfäffikersee. the UNESCO World Heritage Site "Prehistoric pile dwellings around the Alps". In Roman era, along "Pfäffikersee" there was a Roman road from the "vicus Centum Prata" (Kempraten) on Obersee–Lake Zürich via "Vitudurum" (Oberwinterthur) to "Tasgetium" (Eschenz) to the Rhine. To secure this important transport route, the Irgenhausen Castrum was built.List of lakes of SwitzerlandWaterlevels of Pfäffikersee at Pfäffikon.


Question: Which city or region does this place locate in?

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Hanauma Bay. the vicinity, the area was not inhabited, although archeologists have found fishing tools and other indications of human presence there. The bay was used as a recreational area by "aliʻi" (Hawaiian nobility), including King Kamehameha and Queen Ka‘ahumanu, who fished, entertained visitors, and sponsored games there. It was also used as a layover and as a navigational lookout point, since the waters between Oʻahu and Molokaʻi are at times difficult.Hanauma Bay was purchased from the Bernice Pauahi Bishop estate by the City and County of Honolulu, and subsequently opened for public use. It was initially a favorite fishing and picnic.


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

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Arctic hare. The Arctic hare ("Lepus arcticus") is a species of hare highly adapted to living in the Arctic tundra and other icy biomes. The Arctic hare survives with shortened ears and limbs, a small nose, fat that makes up close to 20% of its body, and a thick coat of fur. It usually digs holes in the ground or under the snow to keep warm and to sleep. Arctic hares look like rabbits but have shorter ears, are taller when standing, and, unlike rabbits, can thrive in extreme cold. They can travel together with many other hares, sometimes huddling with dozens.

Arctic hare. "Euhoplopsyllus glacialis", and "Megabothris groenlandicus". Fleas are more common than parasitic worms.## Subspecies.There are four subspecies of this hare:"Lepus arcticus arcticus""Lepus arcticus banksii""Lepus arcticus groenlandicus""Lepus arcticus monstrabilis.


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

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Yellow-rumped warbler. The yellow-rumped warbler (Setophaga coronata) is a regular North American bird species that can be commonly observed all across the continent. Its extensive distribution range connects both the Pacific and Atlantic coasts of the U.S. as well as Canada and Central America, with the population concentrating in the continent's northern parts during the breeding season and migrating southwards to southern North and Central America in Winter. The species generally prefers coniferous forests or mixed coniferous-deciduous forests as its breeding habitat, while during the winter it can be found inhabiting more open areas such as shrublands that offer food resources. The.

Yellow-rumped warbler. distinguished by noticeable features such as different color of throat, etc. ## Etymology.The genus name "Setophaga" is from ancient Greek "ses", "moth", and "", "eating", and the specific "coronata" means "crowned".## Classification.Since 1973, the American Ornithologists' Union has elected to merge these passerine birds as one species. A 2017 proposal to split the yellow-rumped warbler into separate species failed. In contrast, the International IOC World Bird List v. 10.2 classifies the myrtle, Audubon's, and Goldman's as separate species ("Setophaga coronata", "Setophaga auduboni", and "Setophaga goldmani", respectively), and the black-fronted warbler as a subspecies of "S. auduboni". Proper taxonomic treatments remain.

Yellow-rumped warbler. noticeable yellow rumps. Goldman's warbler, found in Guatemala, resembles Audubon's but has a white lower border to the yellow throat and otherwise darker plumage; males replace the slate blue of Audubon's with black.Comprising most of the species of the New World warbler family, among the genus "Setophaga" (formerly "Dendroica"), the yellow-rumped warbler is a mid-to-large sized species. The total length of the species can range from 12 to 15 (cm) long, with a wingspan of 19 to 24 (cm). Although the length is only slightly greater than other "Setophaga" warblers, it can be mildly to significantly heavier than most other.


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

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Northern jacana. and stable. A male may create several nests at different sites and the female may choose one or find a site of her own in the territory.This bird lays a clutch of four brown eggs with black markings. These eggs usually measure around 30 by 23 (mm). The male incubates the eggs for 28 days. A female may sometimes shade and squat over the eggs but rarely incubate them. A female may reluctantly incubate the eggs if a male does not have sufficient time to forage throughout the day due to rain and cool temperatures. Males spend most of their.


Question: Which city or region does this building locate in?

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Hill of Crosses. is said to have received his stigmata. In May 2013, Šiauliai District Municipality adopted rules regarding the placement of crosses. People are allowed to erect wooden crosses less than 3 (m) in height with no permits.In December 2019, a tourist from China removed and tossed away a cross believed to be set up by the Hong Kong pro-democracy camp. She later condemned the protesters in a Twitter post and in an Instagram video saying, "We have done a good thing today. Our motherland is great." Lithuanian Foreign Minister Linas Linkevičius condemned the woman's action in a tweet that called it.


Question: Who are the structure engineers of this building?

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

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


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

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Megisto cymela. Megisto cymela, the little wood satyr, is a butterfly species of the Satyrinae family that occurs in North America.Adult## Description.The wingspan is 29–48 mm. The forewing has two yellow-rimmed black eyespots on both sides, dorsal and ventral. The hindwing has two spots on the dorsal side but have smaller spots on the ventral. The other all color is light brown. The wood satyr is comparably larger than "sosybia".CaterpillarThe body is light greenish brown with a dark dorsal line and alternating brown and yellowish lateral stripes. The surface of the caterpillar has bumps, these bumps bear short reddish-brown hairs. The head.

Megisto cymela. is dirty white while the tail hairs are light gray.The wood satyr is part of the typically Neotropical subtribe Euptychiina. It can be observed in forests, usually along the edges and in brush-filled openings along cleared forest roads. It has also been observed in grassy areas usually between forested patches. It flies near the ground, twisting between and through grasses, small trees and bushes. Collectors have found it often difficult to capture, though it appears to be a slow flyer at first glance. This butterfly prefers habitat that is open, contains deciduous trees along with marshy areas and possessing brushy.

Megisto cymela. cover.## Range and habitat.They are seen in the eastern United States and southeastern Canada, from Nova Scotia south into Florida, west to Texas, Saskatchewan and Wyoming. As the name implies the little wood satyr is most commonly seen in woods and shrubby areas.## Life cycle.Adults in the northern portions of their range fly between June and July while their southern populations fly between March and September. Adults have a slow "bouncing" flight but they will rise as far as the top of tall trees. Females lay eggs singly on grass, the fourth-instar caterpillars hibernate. "Dactylis glomerata" "Poa pratensis" "Eremochloa ophiuroides.

Megisto cymela. Plant sap Aphid honeydew Rarely nectar""Megisto" Hübner, [1819]" at Markku Savela's "Lepidoptera and Some Other Life Forms"Little Wood-Satyr, Butterflies of Canada.


Question: What is the country of origin of this food?

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Teriyaki. Teriyaki (kanji: 照り焼き) is a cooking technique used in Japanese cuisine in which foods are broiled or grilled with a glaze of soy sauce, mirin, and sugar.Fish – yellowtail, marlin, skipjack tuna, salmon, trout, and mackerel – is mainly used in Japan, while white and red meat – chicken, pork, lamb, and beef – is more often used in the West. Other ingredients sometimes used in Japan include squid, hamburger steak, and meatballs.The word "teriyaki" derives from the noun , which refers to a shine or luster given by the sugar content in the , and , which refers to.

Teriyaki. the cooking method of grilling or broiling. Traditionally the meat is dipped in or brushed with sauce several times during cooking. Teriyaki was invented by Japanese chefs in the 1600s.The is traditionally made by mixing and heating soy sauce, sake (or mirin), and sugar (or honey). The sauce is boiled and reduced to the desired thickness, then used to marinate meat, which is then grilled or broiled. Sometimes ginger is added and the final dish may be garnished with spring onions. (see tare).## Variations.A is a variety of hamburger either topped with teriyaki sauce or with the sauce worked into.

Teriyaki. the ground meat patty. "Teriyaki stir-fry" refers to stir frying meat or vegetables in teriyaki sauce.Another variety is teriyaki-style prepared vegetarian products.## By country.## United States.## Teriyaki sauce.In North America, any dish made with a teriyaki-like sauce is described using the word teriyaki. This often even includes those using foreign alternatives to "sake" or "mirin", such as wine, or with added ingredients, such as sesame or garlic (uncommon in traditional Japanese cuisine). The sauce used for teriyaki is generally sweet, although it can also be spicy. Pineapple juice is sometimes used, as it not only provides sweetness but also bromelain.


Question: Where do you usually find this animal?

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Wolf. habitat.Wolves occur across Eurasia and North America. However, deliberate human persecution because of livestock predation and fear of attacks on humans has reduced the wolf's range to about one-third of its historic range; the wolf is now extirpated (locally extinct) from much of its range in Western Europe, the United States and Mexico, and completely in Ireland, the United Kingdom, and Japan. In modern times, the wolf occurs mostly in wilderness and remote areas. The wolf can be found between sea level and 3000 (m). Wolves live in forests, inland wetlands, shrublands, grasslands (including Arctic tundra), pastures, deserts, and rocky.

Wolf. are nocturnal predators. During the winter, a pack will commence hunting in the twilight of early evening and will hunt all night, traveling tens of kilometres. Sometimes hunting large prey occurs during the day. During the summer, wolves generally tend to hunt individually, ambushing their prey and rarely giving pursuit.When hunting large gregarious prey, wolves will try to isolate an individual from its group. If successful, a wolf pack can bring down game that will feed it for days, but one error in judgement can lead to serious injury or death. Most large prey have developed defensive adaptations and behaviours.


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

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Bidens cernua. Bidens cernua is a plant species in the sunflower family, widespread across much of Eurasia and North America. It is commonly called nodding beggarticks or nodding bur-marigold,"Bidens cernua" sometimes grows as high as 400 cm (160 inches) tall in favorable conditions. The leaves are sessile with coarsely-toothed margins. The name "cernua" means "nodding", or "hanging". This refers to the fact that the flower heads are sometimes oriented horizontally or downwards. The plant does best in wet habitats such as swamps, marshes, and flood plains.The seeds can be eaten by ducks.


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

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Spathodea. Spathodea is a monotypic genus in the flowering plant family Bignoniaceae. The single species it contains, Spathodea campanulata, is commonly known as the African tulip tree. The tree grows between 7 - 25 (m) tall and is native to tropical dry forests of Africa. It has been nominated as among 100 of the "World's Worst" invaders.This tree is planted extensively as an ornamental tree throughout the tropics and is much appreciated for its very showy reddish-orange or crimson (rarely yellow), campanulate flowers. The generic name comes from the Ancient Greek words σπαθη ("spathe") and οιδα ("oida"), referring to the spathe-like.


Question: Where is this bird originally discovered?

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Canada jay. widespread "boreal" or "taiga" clade ranging from Alaska to Newfoundland and ranging south to the Black Hills of South Dakota, Wyoming and Utah in the west and New England in the east, a "transcascade" clade in eastern Washington and Oregon and ranging into Alberta and Montana, a "Rocky Mountains (Colorado)" clade from the southern Rocky Mountains, and a "Pacific" clade from coastal British Columbia, Washington, and southwestern Oregon. There was also a population of the boreal clade in the central Rocky Mountains between the Colorado and transcascade clades. Genetic dating suggests the Pacific clade diverged from the common ancestor of.

Canada jay. the Alberta jay, was described by American ornithologist James L. Peters in 1920. It ranges from northeastern British Columbia and northwestern Alberta southeastward, east of the Rocky Mountains to the Black Hills of South Dakota. It is an occasional visitor to northwestern Nebraska. "P. c. bicolor", described by American zoologist Alden H. Miller in 1933, is found in southeastern British Columbia, southwestern Alberta, eastern Washington, northeastern Oregon, northern and central Idaho, and western Montana. Miller noted that the subspecies appeared to be a stable intermediate form between "canadensis" and "capitalis". It was a similar size to subspecies "canadensis", and had.

Canada jay. (Philadelphia)."P. c. capitalis" is found in the southern Rocky Mountains from eastern Idaho, south-central Montana, and western and southern Wyoming south through eastern Utah, and western and central Colorado, to east-central Arizona and north-central New Mexico. American naturalist Spencer Fullerton Baird described this subspecies in 1873. It has a wholly whitish head with a pale band on the back of the neck, and overall more ashy grey plumage. It is also generally larger than the nominate subspecies "canadensis"."P. c. griseus" occurs from southwestern British Columbia and Vancouver Island south through central Washington and central Oregon to the mountains of north-central.

Canada jay. and northeastern California. It was described by Robert Ridgway in 1899."P. c. nigricapillus", also known as the Labrador jay, is found in northern Quebec (Kuujjuaq, Whale River, and George River), throughout Labrador and Nova Scotia, and in southeastern Quebec (Mingan and Blanc-Sablon). It was described by Ridgway in 1882."P. c. obscurus", described by Ridgway in 1874, is native to the coastal strip from Washington (Crescent Lake, Seattle, and Columbia River) through western Oregon to northwestern California (Humboldt County). Also known as the Oregon jay, this subspecies has more dark brown than grey upperparts. "P. c. pacificus" ranges from central Alaska.

Canada jay. a magnolia warbler ("Dendroica magnolia") in flight. They have been reported to opportunistically hunt young amphibians such as the western chorus frog ("Pseudacris triseriata") in Chambers Lake, Colorado, and the long-toed salamander ("Ambystoma macrodactylum") in Whitehorse Bluff in Crater Lake National Park, Oregon. Canada jays have been seen landing on moose ("Alces alces") to remove and eat engorged winter ticks ("Dermacentor albipictus") during April and May in Algonquin Provincial Park. Researchers also found a Canada jay nest containing a brooding female, three hatchlings, and three warm, engorged winter deer ticks. Because the ticks were too large for the hatchlings to.