Euler is regarded as one of the greatest, most prolific mathematicians in history and the greatest of the 18th century. Several great mathematicians who produced their work after Euler's death have recognised his importance in the field as shown by quotes attributed to many of them: Pierre-Simon Laplace expressed Euler's influence on mathematics by stating, "Read Euler, read Euler, he is the master of us all." Carl Friedrich Gauss wrote: "The study of Euler's works will remain the best school for the different fields of mathematics, and nothing else can replace it." His 866 publications and his correspondence are being collected in the Opera Omnia Leonhard Euler which, when completed, will consist of 81 quartos. He spent most of his adult life in Saint Petersburg, Russia, and in Berlin, then the capital of Prussia. (Full article...)
Image 2
A natural diamond crystal
Diamond is a solid form of the element carbon with its atoms arranged in a crystal structure called diamond cubic. Diamond as a form of carbon is a tasteless, odourless, strong, brittle solid, colourless in pure form, a poor conductor of electricity, and insoluble in water. Another solid form of carbon known as graphite is the chemically stable form of carbon at room temperature and pressure, but diamond is metastable and converts to it at a negligible rate under those conditions. Diamond has the highest hardness and thermal conductivity of any natural material, properties that are used in major industrial applications such as cutting and polishing tools. They are also the reason that diamond anvil cells can subject materials to pressures found deep in the Earth.
Because the arrangement of atoms in diamond is extremely rigid, few types of impurity can contaminate it (two exceptions are boron and nitrogen). Small numbers of defects or impurities (about one per million of lattice atoms) can color a diamond blue (boron), yellow (nitrogen), brown (defects), green (radiation exposure), purple, pink, orange, or red. Diamond also has a very high refractive index and a relatively high optical dispersion. (Full article...)
The Jeannetteexpedition of 1879–1881, officially called the U.S. Arctic Expedition, was an attempt led by George W. De Long to reach the North Pole by pioneering a route from the Pacific Ocean through the Bering Strait. The premise was that a temperate current, the Kuro Siwo, flowed northwards into the strait, providing a gateway to the hypothesized Open Polar Sea and thus to the pole.
This theory proved illusory; the expedition's ship, USS Jeannette and its crew of thirty-three men, was trapped by ice and drifted for nearly two years before she was crushed and sunk north of the Siberian coast. De Long then led his men on a perilous journey by sled, dragging the Jeannette'swhaleboat and two cutters, eventually switching to these small boats to sail for the Lena Delta in Siberia. During this journey, and in the subsequent weeks of wandering in Siberia before rescue, twenty of the ship's complement died, including De Long. (Full article...)
Due to the length of the front lines created by the German 1942 summer offensive, which had aimed at taking the Caucasus oil fields and the city of Stalingrad, German and other Axis forces were over-extended. The German decision to transfer several mechanized divisions from the Soviet Union to Western Europe exacerbated their situation. Furthermore, Axis units in the area were depleted by months of fighting, especially those which had taken part in the struggle for Stalingrad. The Germans could only count on the XXXXVIII Panzer Corps, which had the strength of a single panzer division, and the 29th Panzergrenadier Division as reserves to bolster their Romanian allies guarding the German Sixth Army's flanks. These Romanian armies lacked the heavy equipment to deal with Soviet armor. In contrast, the Red Army deployed over one million personnel for the offensive. Soviet troop movements were not without problems: concealing their build-up proved difficult, and Soviet units commonly arrived late due to logistical issues. Operation Uranus was first postponed by the Soviet high command (Stavka) from 8 to 17 November, then to 19 November. (Full article...)
Rimsky-Korsakov believed in developing a nationalistic style of classical music, as did his fellow composer Mily Balakirev and the critic Vladimir Stasov. This style employed Russian folk song and lore along with exotic harmonic, melodic and rhythmic elements in a practice known as musical orientalism, and eschewed traditional Western compositional methods. Rimsky-Korsakov appreciated Western musical techniques after he became a professor of musical composition, harmony, and orchestration at the Saint Petersburg Conservatory in 1871. He undertook a rigorous three-year program of self-education and became a master of Western methods, incorporating them alongside the influences of Mikhail Glinka and fellow members of The Five. Rimsky-Korsakov's techniques of composition and orchestration were further enriched by his exposure to the works of Richard Wagner. (Full article...)
Image 8
With the pale yellow rump visible. Buryatia, Russia.
Pallas's leaf warbler is one of the smallest Palearcticwarblers, with a relatively large head and short tail. It has greenish upperparts and white underparts, a lemon-yellow rump, and yellow double wingbars, supercilia and central crown stripe. It is similar in appearance to several other Asian warblers, including some that were formerly considered to be subspecies of it, although its distinctive vocalisations aid identification. (Full article...)
The sculpture depicts a female personification of Russia, commonly referred to as Mother Russia. She wears a windswept shawl resembling wings, and holds a sword aloft in her right hand. Her left hand is extended outward, as she calls upon the Soviet people to battle. The statue was originally planned to be made of granite and to stand only 30 metres (98 ft) tall, with a design consisting of a Red Army soldier genuflecting and placing a sword before Mother Russia holding a folded banner. However, the design was changed in 1961 to be a large concrete structure at nearly double the height, a decision that was subject to criticism from Soviet military officials and writers. It was inspired by the Winged Victory of Samothrace, an ancient Greek sculpture of the goddess of victory, Nike. (Full article...)
Image 10
The Caspian expeditions of the Rus' were military raids undertaken by the Rus' between the late 9th century and c. 1041 on the Caspian Sea shores, of what are nowadays Iran, Dagestan, and Azerbaijan. Initially, the Rus' appeared in Serkland in the 9th century travelling as merchants along the Volga trade route, selling furs, honey, and slaves. The first small-scale Viking raids took place in the late 9th and early 10th century. The Rus' undertook the first large-scale expedition in 913; having arrived on 500 ships, they pillaged in the Gorgan region, in the territory of present-day Iran, and more to the west, in Gilan and Mazandaran, taking slaves and goods. On their return, the northern raiders were attacked and defeated by the Khazars in the Volga Delta, and those who escaped were killed by the local tribes in the middle Volga.
During their next expedition in 943, the Rus' captured Bardha'a, the capital of Arran, in the modern-day Republic of Azerbaijan. The Rus' stayed there for several months, killing many inhabitants of the city and amassing substantial plunder. It was only an outbreak of dysentery among the Rus' that forced them to depart with their spoils. Sviatoslav, prince of Kiev, commanded the next attack, which destroyed the Khazar state in 965. Sviatoslav's campaign established the Rus's hold on the north-south trade routes, helping to alter the demographics of the region. Raids continued through the time period with the last Scandinavian attempt to reestablish the route to the Caspian Sea taking place in c. 1041 by Ingvar the Far-Travelled. (Full article...)
The region that formed the TDFR had been part of the Russian Empire. As the empire dissolved during the 1917 February Revolution and a provisional government took over, a similar body, called the Special Transcaucasian Committee (Ozakom), did the same in the Caucasus. After the October Revolution and rise of the Bolsheviks in Russia, the Transcaucasian Commissariat replaced the Ozakom. In March 1918, as the First World War continued, the Commissariat initiated peace talks with the Ottoman Empire, which had invaded the region, but the talks broke down quickly as the Ottomans refused to accept the authority of the Commissariat. The Treaty of Brest-Litovsk, which ended Russia's involvement in the war, conceded parts of the Transcaucasus to the Ottoman Empire, which pursued its invasion to take control of the territory. Faced with this imminent threat, on 22 April 1918 the Commissariat dissolved itself and established the TDFR as an independent state. A legislature, the Seim, was formed to direct negotiations with the Ottoman Empire, which had immediately recognized the state. (Full article...)
The Gurian Republic was an insurgent community that existed between 1902 and 1906 in the western Georgian region of Guria (known at the time as the Ozurget Uyezd) in the Russian Empire. It rose from a revolt over land grazing rights in 1902. Several issues over the previous decades affecting the peasant population including taxation, land ownership and economic factors also factored into the start of the insurrection. The revolt gained further traction through the efforts of Georgian social democrats, despite some reservations within their party over supporting a peasant movement, and grew further during the 1905 Russian Revolution.
During its existence, the Gurian Republic ignored Russian authority and established its own system of government, which consisted of assemblies of villagers meeting and discussing issues. A unique form of justice, where trial attendees voted on sentences, was introduced. While the movement broke from imperial administration, it was not anti-Russian, desiring to remain within the Empire. (Full article...)
Image 14
A Finnish Maxim M/09-21 machine gun crew during the Winter War
The Winter War was a war between the Soviet Union and Finland. It began with a Soviet invasion of Finland on 30 November 1939, three months after the outbreak of World War II, and ended three and a half months later with the Moscow Peace Treaty on 13 March 1940. Despite superior military strength, especially in tanks and aircraft, the Soviet Union suffered severe losses and initially made little headway. The League of Nations deemed the attack illegal and expelled the Soviet Union from its organization.
The Soviets made several demands, including that Finland cede substantial border territories in exchange for land elsewhere, claiming security reasons – primarily the protection of Leningrad, 32 km (20 mi) from the Finnish border. When Finland refused, the Soviets invaded. Most sources conclude that the Soviet Union had intended to conquer all of Finland, and cite the establishment of the puppet Finnish Communist government and the Molotov–Ribbentrop Pact's secret protocols as evidence of this, while other sources argue against the idea of a full Soviet conquest. Finland repelled Soviet attacks for more than two months and inflicted substantial losses on the invaders in temperatures as low as −43 °C (−45 °F). The battles focused mainly on Taipale along the Karelian Isthmus, on Kollaa in Ladoga Karelia and on Raate Road in Kainuu, but there were also battles in Salla and Petsamo in Lapland. (Full article...)
Image 15
Nansen's Fram expedition of 1893–1896 was an attempt by the Norwegian explorer Fridtjof Nansen to reach the geographical North Pole by harnessing the natural east–west current of the Arctic Ocean. In the face of much discouragement from other polar explorers, Nansen took his ship Fram to the New Siberian Islands in the eastern Arctic Ocean, froze her into the pack ice, and waited for the drift to carry her towards the pole. Impatient with the slow speed and erratic character of the drift, after 18 months Nansen and a chosen companion, Hjalmar Johansen, left the ship with a team of Samoyed dogs and sledges and made for the pole. They did not reach it, but they achieved a record Farthest North latitude of 86°13.6′N before a long retreat over ice and water to reach safety in Franz Josef Land. Meanwhile, Fram continued to drift westward, finally emerging in the North Atlantic Ocean.
The idea for the expedition had arisen after items from the American vessel Jeannette, which had sunk off the north coast of Siberia in 1881, were discovered three years later off the south-west coast of Greenland. The wreckage had obviously been carried across the polar ocean, perhaps across the pole itself. Based on this and other debris recovered from the Greenland coast, the meteorologist Henrik Mohn developed a theory of transpolar drift, which led Nansen to believe that a specially designed ship could be frozen in the pack ice and follow the same track as Jeannette wreckage, thus reaching the vicinity of the pole. (Full article...)
Although James Clerk Maxwell made the first color photograph in 1861, the results were far from realistic until Prokudin-Gorsky perfected the technique with a series of improvements around 1905. His process used a camera that took a series of monochrome pictures in rapid sequence, each through a different colored filter. Prokudin-Gorskii then went on to document much of the country of Russia, travelling by train in a specially equipped darkroomrailroad car.
Kombat (Russian for 'battalion commander') is a black-and-white photograph by Soviet photographer Max Alpert. It depicts a Soviet military officer, armed with a TT pistol, raising his unit for an attack during World War II. This work is regarded as one of the most iconic Soviet World War II photographs, yet neither the date nor the subject is known with certainty. According to the most widely accepted version, it depicts junior politruk Aleksei Gordeyevich Yeryomenko, minutes before his death on 12 July 1942, in Voroshilovgrad Oblast, now part of Ukraine. The photograph is in the archives of RIA Novosti, a Russian state-owned news agency.
Gorky Park is a park in central Moscow, Russia, inaugurated in 1928 following the use of the site in 1923 for the First All-Russian Agricultural and Handicraft Industries Exhibition. The park was named after the writer and political activist Maxim Gorky. It underwent a major reconstruction in 2011; nearly all the amusement rides and other attractions were removed, extensive lawns and flower beds were created, and new roadways were laid. A 15,000 m2 (160,000 sq ft) ice rink was installed at the same time. This picture shows the colonnaded main portal of Gorky Park.
This photograph of Skudina, taken in 2009, is part of a collection of 500 images of Russian sportspeople released to Wikimedia Commons by Bolshoi Sport.
This photo of the Nilov Monastery on Stolobny Island in Tver Oblast, Russia, was taken by Sergey Prokudin-Gorsky in 1910 before the advent of colour photography. His process used a camera that took a series of monochrome pictures in rapid sequence, each through a different coloured filter. By projecting all three monochrome pictures using correctly coloured light, it was possible to reconstruct the original colour scene.
Hotel Astoria is a five-star hotel located on Saint Isaac's Square in Saint Petersburg. Commissioned in 1910 by the Palace Hotel Company to host visitors to the Romanov tercentenary, the hotel was designed by Fyodor Lidval and first opened in 1912. After the October Revolution, it continued to be used as a state-operated hotel, though during World War II it was also a field hospital. The hotel, now owned by Rocco Forte Hotels, has been renovated several times, most recently in 2012.
The Portrait of Chaliapin is an oil-on-canvas painting by Boris Kustodiev, produced in 1921. Feodor Chaliapin was a Russian opera singer; possessing a deep and expressive bass voice, he enjoyed an important international career at major opera houses. He is depicted here wearing an expensive fur coat, which had come from a Soviet warehouse containing items confiscated from rich people during the Russian Revolution, and which he had received in lieu of payment for a performance. The background shows festivities at the traditional folk holiday of Maslenitsa. Dressed in a smart suit and holding a cane, Chaliapin is portrayed as having risen above his contemporaries. His favourite dog is at his feet and, at the bottom left, his two daughters stroll on the festive square in front of a poster promoting his concert. This copy of the painting is in the collection of the Russian Museum in Saint Petersburg.
A map detailing the events of the 2008 South Ossetia war, which began one year ago today, when Georgia launched an operation in the disputed region of South Ossetia. Ossetian, Russian, and Abkhazian forces ejected the Georgian forces after five days of heavy fighting. All parties reached a ceasefire agreement on August 12, and Russian troops remain stationed in Abkhazia and South Ossetia to this day.
The Krestovsky Stadium is the home ground of FC Zenit Saint Petersburg. Photographed here in 2016, when construction was nearing completion, it is situated on Krestovsky Island in the Russian city of Saint Petersburg. It was opened in 2017 as a venue for the 2017 FIFA Confederations Cup, and hosted the final, in which Germany beat Chile 1–0. It was one of the venues for the 2018 FIFA World Cup the following year. Among other features, it has a retractable roof, and is equipped with a video-surveillance and identification system, as well as security-alarm, fire-alarm and robotic fire-extinguishing systems. The stadium's seating capacity is 67,800.
November 19, 1825 - Alexander I of Russia died of typhus. The army swore allegiance to his eldest brother, the Grand Duke Konstantin Pavlovich. Constantine, however, following Alexander's choice of successor, swore allegiance to his younger brother, Nicholas I.
Kurnik (Russian: курник; "chicken pirog"), also known as wedding pirog or tsar pirog, is a dome-shaped savoury Russian pirog (loosely, a pie) usually filled with chicken or turkey, eggs, onions, kasha or rice, and other optional components. Sometimes filled with boiled rooster combs, this pirog originated in Southern Russia, especially in Cossack communities, and was used as a "wedding pirog" in the rest of the country. It is dome-shaped, unlike any other non-sweet pirog. In special cases, it was served to tsar himself. Even today, this pirog is served on special occasions in most of Russia. (Full article...)
Eduard Anatolyevich Streltsov (Russian: Эдуа́рд Анато́льевич Стрельцо́в, IPA:[ɨdʊˈartɐnɐˈtolʲjɪvʲitɕstrʲɪlʲˈtsof]ⓘ; 21 July 1937 – 22 July 1990) was a Soviet footballer who played as a forward for Torpedo Moscow and the Soviet national team during the 1950s and 1960s. A powerful and skilful attacking player, he scored the fourth-highest number of goals for the Soviet Union and has been called "the greatest outfield player Russia has ever produced". He is sometimes dubbed "the Russian Pelé".
Born and raised in east Moscow, Streltsov joined Torpedo at the age of 16 in 1953 and made his international debut two years later. He was part of the squad that won the gold medal at the 1956 Melbourne Olympics, and came seventh in the 1957 Ballon d'Or. The following year, his promising career was interrupted by allegations of sexual assault shortly before the 1958 World Cup. Soviet authorities pledged he could still play if he admitted his guilt, after which he confessed, but was instead prosecuted and sentenced to twelve years of forced labour under the Gulag system (abolished in 1960 and replaced by prisons). The conviction was highly controversial, with many pointing to conflicts between Streltsov and government officials. (Full article...)
Germany's leader Olaf Scholz holds a telephone conversation with Russia's leader Vladimir Putin about the war in Ukraine, their first contact since 2022. (New York Times)
Putin tells Scholz that any negotiated settlement to end the war must recognize the territories that Russia has conquered as part of Russia and that Ukraine must abandon its aspiration to join the North Atlantic collective security alliance. (Associated Press)
15 November 2024 –
Protestors storm the Parliament of Abkhazia in the capital Sukhumi, in opposition to a proposed measure that would allow Russians to buy property in Abkhazia. Opposition leader Eshsou Kakalia claims that protestors now control the building. (Al Jazeera)
This is a list of recognized content, updated weekly by JL-Bot (talk·contribs) (typically on Saturdays). There is no need to edit the list yourself. If an article is missing from the list, make sure it is tagged or categorized (e.g. Category:WikiProject Russia articles) correctly and wait for the next update. See WP:RECOG for configuration options.