Featured articles are displayed here, which represent some of the best content on English Wikipedia.
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Combe Hill is a causewayed enclosure, near Eastbourne in East Sussex, on the northern edge of the South Downs. It consists of an inner circuit of ditches and banks, incomplete where it meets a steep slope on its north side, and the remains of an outer circuit. Causewayed enclosures were built in England from shortly before 3700 BC until at least 3500 BC; they are characterized by the full or partial enclosure of an area with ditches that are interrupted by gaps, or causeways. Their purpose is not known; they may have been settlements, meeting places, or ritual sites. The historian Hadrian Allcroft included the site in his 1908 book Earthwork of England, and in 1930 E. Cecil Curwen listed it as a possible Neolithic site in a paper which attempted to provide the first list of all the causewayed enclosures in England. (Full article...)
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Guandimiao (Chinese: 关帝庙遗址; pinyin: Guāndìmiào yízhǐ; lit. 'Guandi temple ruins') is a Chinese archaeological site 18 km (11 miles) south of the Yellow River in Xingyang, Henan. It is the site of a small Late Shang village that was inhabited from roughly 1250 to 1100 BCE. Located 200 km (120 miles) from the site of the Shang dynasty capital at Yinxu in Anyang, the site was first studied as a part of excavations undertaken between 2006 and 2008 in preparation for the nearby South–North Water Transfer Project. Excavation and study at Guandimiao has significantly broadened scholars' understanding of rural Shang economies and rituals, as well as the layout of rural villages, which had received comparatively little attention compared to urban centers like Yinxu and Huanbei. (Full article...)
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Male T. m. merula
The common blackbird (Turdus merula) is a species of true thrush. It is also called the Eurasian blackbird (especially in North America, to distinguish it from the unrelated New World blackbirds), or simply the blackbird. It breeds in Europe, western Asia, and North Africa, and has been introduced to Australia and New Zealand. It has a number of subspecies across its large range; a few former Asian subspecies are now widely treated as separate species. Depending on latitude, the common blackbird may be resident, partially migratory, or fully migratory. (Full article...)
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Inflorescence
Banksia speciosa, commonly known as the showy banksia, is a species of large shrub or small tree in the familyProteaceae. It is found on the south coast of Western Australia between Hopetoun (34° S 120° E) and Point Culver (33° S 124° E), growing on white or grey sand in shrubland. Reaching up to 8 m (26 ft) in height, it is a single-stemmed plant that has thin leaves with prominent triangular 'teeth' along each margin, which are 20–45 cm (7.9–17.7 in) long and 2–4 cm (0.8–1.6 in) wide. The prominent cream-yellow flower spikes known as inflorescences appear throughout the year. As they age they develop up to 20 follicles each that store seeds until opened by fire. Though widely occurring, the species is highly sensitive to dieback and large populations of plants have succumbed to the disease. (Full article...)
The Homunculus Nebula, surrounding η Carinae, imaged by WFPC2 at red and near-ultraviolet wavelengths
η Carinae (Eta Carinae, abbreviated to η Car), formerly known as η Argus, is a stellar system containing at least two stars with a combined luminosity greater than five million times that of the Sun, located around 7,500 light-years (2,300 parsecs) distant in the constellationCarina. Previously a 4th-magnitude star, it brightened in 1837 to become brighter than Rigel, marking the start of its so-called "Great Eruption". It became the second-brightest star in the sky between 11–14 March 1843 before fading well below naked-eye visibility after 1856. In a smaller eruption, it reached 6th magnitude in 1892 before fading again. It has brightened consistently since about 1940, becoming brighter than magnitude 4.5 by 2014. (Full article...)
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Anning with her dog, Tray, painted before 1842; the hill Golden Cap can be seen in the background
Bodiam Castle (/ˈboʊdiəm/) is a 14th-century moatedcastle near Robertsbridge in East Sussex, England. It was built in 1385 by Sir Edward Dalyngrigge, a former knight of Edward III, with the permission of Richard II, ostensibly to defend the area against French invasion during the Hundred Years' War. Of quadrangular plan, Bodiam Castle has no keep, having its various chambers built around the outer defensive walls and inner courts. Its corners and entrance are marked by towers, and topped by crenellations. Its structure, details and situation in an artificial watery landscape indicate that display was an important aspect of the castle's design as well as defence. It was the home of the Dalyngrigge family and the centre of the manor of Bodiam. (Full article...)
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A satellite image of the lower Florida peninsula showing darkened portions south of Lake Okeechobee as the Everglades and Big Cypress Swamp. The reddish area bordering the large inland lake is the Everglades Agricultural Area. Before drainage, the Everglades, a region of tropicalwetlands in southern Florida, were an interwoven mesh of marshes and prairies covering 4,000 square miles (10,000 km2). The Everglades is both a vast watershed that has historically extended from Lake Okeechobee 100 miles (160 km) south to Florida Bay (around one-third of the southern Florida peninsula), and many interconnected ecosystems within a geographic boundary. It is such a unique meeting of water, land, and climate that the use of either singular or plural to refer to the Everglades is appropriate. When Marjory Stoneman Douglas wrote her definitive description of the region in 1947, she used the metaphor "River of Grass" to explain the blending of water and plant life. (Full article...)
The Tahiti rail, Tahitian red-billed rail, or Pacific red-billed rail (Hypotaenidia pacifica) is an extinct species of rail that lived on Tahiti. It was first recorded during James Cook's second voyage around the world (1772–1775), on which it was illustrated by Georg Forster and described by Johann Reinhold Forster. No specimens have been preserved. As well as the documentation by the Forsters, there have been claims that the bird also existed on the nearby island of Mehetia. The Tahiti rail appears to have been closely related to, and perhaps derived from, the buff-banded rail, and has also been historically confused with the Tongan subspecies of that bird. (Full article...)
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The nebular hypothesis is the most widely accepted model in the field of cosmogony to explain the formation and evolution of the Solar System (as well as other planetary systems). It suggests the Solar System is formed from gas and dust orbiting the Sun which clumped up together to form the planets. The theory was developed by Immanuel Kant and published in his Universal Natural History and Theory of the Heavens (1755) and then modified in 1796 by Pierre Laplace. Originally applied to the Solar System, the process of planetary system formation is now thought to be at work throughout the universe. The widely accepted modern variant of the nebular theory is the solar nebular disk model (SNDM) or solar nebular model. It offered explanations for a variety of properties of the Solar System, including the nearly circular and coplanar orbits of the planets, and their motion in the same direction as the Sun's rotation. Some elements of the original nebular theory are echoed in modern theories of planetary formation, but most elements have been superseded. (Full article...)
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"Blindfold Me" is a hip hop song by American singer Kelis from her fourth studio album, Kelis Was Here (2006). It was written and produced by Sean Garrett and Polow da Don. A remix, featuring American rapper Nas, was released as the album's second single in the United States on October 3, 2006. Although the Neptunes were long-time collaborators of Kelis, Kelis Was Here was her first album without their involvement as she opted for a more diverse team of record producers, which included Garrett and Polow da Don. (Full article...)
... that author Paul Corey built a door featured in Popular Science that both people and pets could open?
... that the psychological inner space genre was a rebellion against the traditional focus of science fiction on literal outer space?
... that a poem by Moses da Rieti includes an encyclopedia of the sciences, a Jewish paradise fantasy, and a post-biblical history of Jewish literature?
... that Cowbridge Girls School, built in 1896, was unusual for its time in providing a science laboratory for the students?
... that Australian Madeleine Steere played water polo professionally in Turkey after studying biomolecular science in the United States?
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The scientific method is an empirical method for acquiring knowledge that has been referred to while doing science since at least the 17th century. Historically, it was developed through the centuries from the ancient and medieval world. The scientific method involves careful observation coupled with rigorous skepticism, because cognitive assumptions can distort the interpretation of the observation. Scientific inquiry includes creating a testable hypothesis through inductive reasoning, testing it through experiments and statistical analysis, and adjusting or discarding the hypothesis based on the results. (Full article...)
Global Airlines Limited is a British virtual airline with a planned fleet of four Airbus A380 aircraft. The company purchased its first aircraft in May 2023 and claims to be the first new Airbus A380 owner in eight years. The company initially proposed to operate its aircraft with five classes of service including an uncertified "Gamer class", but later announced a conventional three-class cabin configuration. (Full article...)
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These contrails at an airshow provide evidence regarding the aircraft's flight path.
Evidence for a proposition is what supports the proposition. It is usually understood as an indication that the proposition is true. The exact definition and role of evidence vary across different fields. In epistemology, evidence is what justifiesbeliefs or what makes it rational to hold a certain doxastic attitude. For example, a perceptual experience of a tree may serve as evidence to justify the belief that there is a tree. In this role, evidence is usually understood as a private mental state. In phenomenology, evidence is limited to intuitive knowledge, often associated with the controversial assumption that it provides indubitable access to truth. (Full article...)
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A plot of normal distribution (or bell-shaped curve) where each band has a width of 1 standard deviation – See also: 68–95–99.7 rule. In statistics, the standard deviation is a measure of the amount of variation of the values of a variable about its mean. A low standard deviation indicates that the values tend to be close to the mean (also called the expected value) of the set, while a high standard deviation indicates that the values are spread out over a wider range. The standard deviation is commonly used in the determination of what constitutes an outlier and what does not. Standard deviation may be abbreviated SD or std dev, and is most commonly represented in mathematical texts and equations by the lowercase Greek letterσ (sigma), for the population standard deviation, or the Latin letters, for the sample standard deviation. (Full article...)
Featured articles are displayed here, which represent some of the best content on English Wikipedia.
Combe Hill is a causewayed enclosure, near Eastbourne in East Sussex, on the northern edge of the South Downs. It consists of an inner circuit of ditches and banks, incomplete where it meets a steep slope on its north side, and the remains of an outer circuit. Causewayed enclosures were built in England from shortly before 3700 BC until at least 3500 BC; they are characterized by the full or partial enclosure of an area with ditches that are interrupted by gaps, or causeways. Their purpose is not known; they may have been settlements, meeting places, or ritual sites. The historian Hadrian Allcroft included the site in his 1908 book Earthwork of England, and in 1930 E. Cecil Curwen listed it as a possible Neolithic site in a paper which attempted to provide the first list of all the causewayed enclosures in England. (Full article...)
Animation of a water drop, by Chris 73 and Gmaxwell (from Wikipedia:Featured pictures/Sciences/Others)
Section of the Large Hadron Collider, by Maximilien Brice (from Wikipedia:Featured pictures/Sciences/Others)
Archaeological excavation at Atapuerca Mountains, by Mario modesto (from Wikipedia:Featured pictures/Sciences/Others)
Peruvian Andes at United States Exploring Expedition, by Alfred Thomas Agate (edited by Durova) (from Wikipedia:Featured pictures/Sciences/Others)
Mechanical advantage device, by Prolineserver (edited by Tomia, Ss181292 and Atropos235) (from Wikipedia:Featured pictures/Sciences/Others)
Translational motion at Thermodynamic temperature, by Greg L (from Wikipedia:Featured pictures/Sciences/Others)
Global oceanic and terrestrial photoautotroph abundance at Primary production, by SeaWiFS Project (from Wikipedia:Featured pictures/Sciences/Others)
Nobel Prize in Physics diploma, by Sofia Gisberg (restored by Jebulon) (from Wikipedia:Featured pictures/Sciences/Others)
Toroid magnets of the ATLAS detector, by Maximilien Brice, CERN (edited by Bammesk) (from Wikipedia:Featured pictures/Sciences/Others)
Color cathodoluminescence of a diamond, by Pavel.Somov (from Wikipedia:Featured pictures/Sciences/Others)
Simulation of liquids with different viscosities, by Synapticrelay (from Wikipedia:Featured pictures/Sciences/Others)
Archaeologists prospecting Santa Ana Cave at Excavation (archaeology), by Mario modesto (from Wikipedia:Featured pictures/Sciences/Others)
Drop impact on a liquid surface, by José Manuel Suárez (from Wikipedia:Featured pictures/Sciences/Others)
Projectile motion of a bouncing ball at Inelastic collision, by MichaelMaggs (from Wikipedia:Featured pictures/Sciences/Others)
Vibrating glass beam at Euler–Bernoulli beam theory, by Ben pcc (from Wikipedia:Featured pictures/Sciences/Others)
Parallax, by Mila Zinkova (edited by Richard Bartz) (from Wikipedia:Featured pictures/Sciences/Others)
NASA study on wingtip vortices at Wake turbulence, by Langley Research Center (edited by Fir0002) (from Wikipedia:Featured pictures/Sciences/Others)
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