Featured articles are displayed here, which represent some of the best content on English Wikipedia.
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Race Against Time: Searching for Hope in AIDS-Ravaged Africa is a non-fiction book written by Stephen Lewis for the Massey Lectures. Lewis wrote it in early to mid-2005 and House of Anansi Press released it as a corresponding lecture series began in October 2005. Each of the book's chapters were delivered as a different lecture in a different Canadian city, beginning in Vancouver on October 18 and ending in Toronto on October 28. The speeches were aired on CBC Radio One between November 7 and 11. The author and orator, Stephen Lewis, was at that time the United Nations Special Envoy for HIV/AIDS in Africa and former Canadian ambassador to the United Nations. Although he wrote the book and lectures in his role as a concerned Canadian citizen, his criticism of the United Nations (UN), international organizations, and other diplomats, including naming specific people, was called undiplomatic and led several reviewers to speculate whether he would be removed from his UN position. (Full article...)
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Distribution of Transandinomys bolivaris in southern Central and northwestern South America
Transandinomys bolivaris, also known as the long-whiskered rice rat, is a rodent in the familyCricetidae. It is found in humid forest from northeastern Honduras to western Ecuador, up to 1,800 m (5,900 ft) above sea level. Since it was first described in 1901 from Ecuador, six scientific names have been introduced for it, but their common identity was not documented until 1998 and the species has long been known under the name Oryzomys bombycinus, described from Panama in 1912. The name Oryzomys bolivaris was used before it was moved to the new genus Transandinomys with Transandinomys talamancae (formerly Oryzomys talamancae) in 2006. (Full article...)
The Rodrigues night heron (Nycticorax megacephalus) is an extinct species of heron that was endemic to the Mascarene island of Rodrigues in the Indian Ocean. The species was first mentioned as "bitterns" in two accounts from 1691–1693 and 1725–1726, and these were correlated with subfossil remains found and described in the latter part of the 19th century. The bones showed that the bird was a heron, first named Ardea megacephala in 1873, but moved to the night heron genus Nycticorax in 1879 after more remains were described. The specific namemegacephala is Greek for "great-headed". Two related extinct species from the other Mascarene islands have also been identified from accounts and remains: the Mauritius night heron and the Réunion night heron. (Full article...)
The Diamond Smugglers is a non-fiction book by Ian Fleming that was first published in the United Kingdom by Jonathan Cape on 29 November 1957. The book is based on two weeks of interviews Fleming undertook with John Collard, a member of the International Diamond Security Organisation (IDSO) and a former member of MI5; the IDSO was headed by Sir Percy Sillitoe, the ex-head of MI5 who worked for the diamond company De Beers. (Full article...)
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Icelandic horse performing pace
The Icelandic horse (Icelandic: íslenski hesturinn[ˈistlɛnscɪˈhɛstʏrɪn]), or Icelandic, is a breed of horse developed in Iceland. Although the horses are smaller (at times pony-sized) than other breeds, most registries for the Icelandic refer to it as a horse. The breed is long-lived and hardy, owing to the ruggedness of its home country. In their native Iceland they have few afflictions or diseases, thus national laws are in place preventing foreign-born horses from being imported into the country, while exported animals are not permitted to return. In addition to the gaits of walk, trot, and canter/gallop, typical of other horse breeds, many Icelandic horses can also do the tölt (ambling gait) and the flying pace. The only breed of horse in Iceland, the Icelandic is also popular internationally, and sizable populations exist in Europe and North America. The breed is still used for traditional sheepherding work in its native country, as well as for leisure, showing, and racing. (Full article...)
The masked shrike (Lanius nubicus) is a species of bird in the shrike family, Laniidae. It breeds in southeastern Europe and at the eastern end of the Mediterranean, with a separate population in eastern Iraq and western Iran. It is migratory, wintering mainly in northeast Africa. Although it is a short-range migrant, vagrants have occurred widely elsewhere, including northern and western Europe. It is the smallest member of its genus, long-tailed and with a hooked bill. The male has mainly black upperparts, with white on its crown, forehead and supercilium and large white patches on the shoulders and wings. The throat, neck sides and underparts are white, with orange flanks and breast. The female is a duller version of the male, with brownish black upperparts and a grey or buff tone to the shoulders and underparts. The juvenile has grey-brown upperparts with a paler forehead and barring from the head to rump, barred off-white underparts and brown wings аpart from the white primary patches. The species' calls are short and grating, but the song has melodic warbler-like components. (Full article...)
Serpins are a superfamily of proteins with similar structures that were first identified for their protease inhibition activity and are found in all kingdoms of life. The acronym serpin was originally coined because the first serpins to be identified act on chymotrypsin-like serine proteases (serine protease inhibitors). They are notable for their unusual mechanism of action, in which they irreversibly inhibit their target protease by undergoing a large conformational change to disrupt the target's active site. This contrasts with the more common competitive mechanism for protease inhibitors that bind to and block access to the protease active site. (Full article...)
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Muslims surrounding and facing the Kaaba for prayer The qibla (Arabic: قِبْلَة, lit. 'direction') is the direction towards the Kaaba in the Sacred Mosque in Mecca, which is used by Muslims in various religious contexts, particularly the direction of prayer for the salah. In Islam, the Kaaba is believed to be a sacred site built by prophets Abraham and Ishmael, and that its use as the qibla was ordained by God in several verses of the Quran revealed to Muhammad in the second Hijri year. Prior to this revelation, Muhammad and his followers in Medina faced Jerusalem for prayers. Most mosques contain a mihrab (a wall niche) that indicates the direction of the qibla. (Full article...)
... that Na drugą planetę, published in 1895 as one of the earliest Polish science-fiction novels, was later criticized by communist-era censors for its perceived "adoration for America"?
... that the communist-era science-fiction novel Małe zielone ludziki presents a futuristic depiction of Africa that reflects Polish perceptions of the continent during the Cold War?
... that the Polish science fiction novel Extensa marked the growing recognition of its writer, Jacek Dukaj, in Poland?
... 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.
Race Against Time: Searching for Hope in AIDS-Ravaged Africa is a non-fiction book written by Stephen Lewis for the Massey Lectures. Lewis wrote it in early to mid-2005 and House of Anansi Press released it as a corresponding lecture series began in October 2005. Each of the book's chapters were delivered as a different lecture in a different Canadian city, beginning in Vancouver on October 18 and ending in Toronto on October 28. The speeches were aired on CBC Radio One between November 7 and 11. The author and orator, Stephen Lewis, was at that time the United Nations Special Envoy for HIV/AIDS in Africa and former Canadian ambassador to the United Nations. Although he wrote the book and lectures in his role as a concerned Canadian citizen, his criticism of the United Nations (UN), international organizations, and other diplomats, including naming specific people, was called undiplomatic and led several reviewers to speculate whether he would be removed from his UN position. (Full article...)
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Toroid magnets of the ATLAS detector, by Maximilien Brice, CERN (edited by Bammesk) (from Wikipedia:Featured pictures/Sciences/Others)
Nobel Prize in Physics diploma, by Sofia Gisberg (restored by Jebulon) (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)
Simulation of liquids with different viscosities, by Synapticrelay (from Wikipedia:Featured pictures/Sciences/Others)
Parallax, by Mila Zinkova (edited by Richard Bartz) (from Wikipedia:Featured pictures/Sciences/Others)
Vibrating glass beam at Euler–Bernoulli beam theory, by Ben pcc (from Wikipedia:Featured pictures/Sciences/Others)
Color cathodoluminescence of a diamond, by Pavel.Somov (from Wikipedia:Featured pictures/Sciences/Others)
Animation of a water drop, by Chris 73 and Gmaxwell (from Wikipedia:Featured pictures/Sciences/Others)
Drop impact on a liquid surface, by José Manuel Suárez (from Wikipedia:Featured pictures/Sciences/Others)
Section of the Large Hadron Collider, by Maximilien Brice (from Wikipedia:Featured pictures/Sciences/Others)
Projectile motion of a bouncing ball at Inelastic collision, by MichaelMaggs (from Wikipedia:Featured pictures/Sciences/Others)
Translational motion at Thermodynamic temperature, by Greg L (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)
Global oceanic and terrestrial photoautotroph abundance at Primary production, by SeaWiFS Project (from Wikipedia:Featured pictures/Sciences/Others)
Archaeologists prospecting Santa Ana Cave at Excavation (archaeology), by Mario modesto (from Wikipedia:Featured pictures/Sciences/Others)
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Vital articles to understand Science.
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