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103-510: Duga ( Russian : Дуга́ , lit. ' arc ' or ' curve ' ) was an over-the-horizon radar (OTH) system used in the Soviet Union as part of its early-warning radar network for missile defense . It operated from July 1976 to December 1989. Two operational duga radars were deployed, with one near Chernobyl and Liubech in the Ukrainian SSR (present-day Ukraine ), and
206-649: A constitutional referendum on whether to adopt Russian as a second official language. According to the Central Election Commission, 74.8% voted against, 24.9% voted for and the voter turnout was 71.1%. Starting in 2019, instruction in Russian will be gradually discontinued in private colleges and universities in Latvia, and in general instruction in Latvian public high schools. On 29 September 2022, Saeima passed in
309-510: A new education law which requires all schools to teach at least partially in Ukrainian, with provisions while allow indigenous languages and languages of national minorities to be used alongside the national language. The law faced criticism from officials in Russia and Hungary. The 2019 Law of Ukraine "On protecting the functioning of the Ukrainian language as the state language" gives priority to
412-576: A Duga radar made an appearance. Russian language Russian is an East Slavic language belonging to the Balto-Slavic branch of the Indo-European language family . It is one of the four extant East Slavic languages, and is the native language of the Russians . It was the de facto and de jure official language of the former Soviet Union . Russian has remained an official language of
515-470: A formula with V standing for the nucleus (vowel) and C for each consonant, the maximal structure can be described as follows: (C)(C)(C)(C)V(C)(C)(C)(C) Triangulation In trigonometry and geometry , triangulation is the process of determining the location of a point by forming triangles to the point from known points. Specifically in surveying , triangulation involves only angle measurements at known points, rather than measuring distances to
618-479: A language that "belongs to the European cultural space". The financing of Russian-language content by the state will cease, which the concept says create a "unified information space". However, one inevitable consequence would be the closure of public media broadcasts in Russian on LTV and Latvian Radio, as well as the closure of LSM's Russian-language service. In Lithuania , Russian has no official or legal status, but
721-572: A lesser extent the languages to the south and the east: Uralic , Turkic , Persian , Arabic , and Hebrew . According to the Defense Language Institute in Monterey, California , Russian is classified as a level III language in terms of learning difficulty for native English speakers, requiring approximately 1,100 hours of immersion instruction to achieve intermediate fluency. Feudal divisions and conflicts created obstacles between
824-607: A minority language under the Framework Convention for the Protection of National Minorities . 30% of the population was fluent in Russian in 2006, and 2% used it as the main language with family, friends, or at work. In Azerbaijan , Russian has no official status, but is a lingua franca of the country. 26% of the population was fluent in Russian in 2006, and 5% used it as the main language with family, friends, or at work. In Georgia , Russian has no official status, but it
927-454: A nuisance that some communications receivers began including "Woodpecker Blankers" in their circuit designs. The unclaimed signal was a source of speculation, giving rise to theories such as Soviet brainwashing and weather modification experiments. However, because of its distinctive transmission pattern, many experts and amateur radio hobbyists realized it was an over-the-horizon radar system. NATO military intelligence had already given it
1030-516: A qualitatively new entity can be said to emerge—the general language of the working class... capitalism has the tendency of creating the general urban language of a given society. In 2010, there were 259.8 million speakers of Russian in the world: in Russia – 137.5 million, in the CIS and Baltic countries – 93.7 million, in Eastern Europe – 12.9 million, Western Europe – 7.3 million, Asia – 2.7 million, in
1133-404: A representation of the sarcophagus and an antenna array similar in appearance to Duga. The Duga radar is heavily featured in the virtual reality game Proze: Enlightenment , a suspense/puzzle game with the theory that the radar is being used by mind controlling experiments during the 1950-60s. The game actually starts with the player ascending one of the pylons on a maintenance lift. A Duga radar
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#17328451616271236-606: A similar woodpecker-style interference is remembered by radio amateurs occurring in the high frequencies . As early as 1963, or before, radio amateurs were calling this "the Russian Woodpecker". Little is known about the power levels or Russian designation but it was probably a forerunner of the Duga radar systems. It was also speculated at that time, at least among radio amateurs, that this was an over-the-horizon radar. These signals even caused interference on 27 MHz CB radios in
1339-449: A single 100 μs pulse 31 times the amplitude of the received sequence, giving a resolution of 15 kilometres (9.3 mi) (the distance light travels in 50 μs) and process gain of almost 30 dB. This system took advantage of pulse compression to increase the power of the received echoes thereby increasing the sensitivity and effective range. When a second Woodpecker appeared, located in eastern Russia, but also pointed toward
1442-461: A study on the Woodpecker signal. Data analysis showed a pulse repetition interval (PRI) of about 90 ms, a frequency range of 7 to 19 MHz, a bandwidth of 0.02 to 0.8 MHz, and typical transmission time of 7 minutes. The pulses transmitted by the Woodpecker had a wide bandwidth, typically 40 kHz. Their repetition frequencies were 10 Hz, 16 Hz and 20 Hz with
1545-527: Is Belarusian, among ethnic Belarusians this share is 28.5%; the highest share of those who speak Belarusian at home is among ethnic Poles — 46.0%. In Estonia , Russian is spoken by 29.6% of the population, according to a 2011 estimate from the World Factbook, and is officially considered a foreign language. School education in the Russian language is a very contentious point in Estonian politics, and in 2022,
1648-475: Is a co-official language per article 5 of the Constitution of Kyrgyzstan . The 2009 census states that 482,200 people speak Russian as a native language, or 8.99% of the population. Additionally, 1,854,700 residents of Kyrgyzstan aged 15 and above fluently speak Russian as a second language, or 49.6% of the population in the age group. In Tajikistan , Russian is the language of inter-ethnic communication under
1751-401: Is a high degree of mutual intelligibility between Russian, Belarusian and Ukrainian , and a moderate degree of it in all modern Slavic languages, at least at the conversational level. Russian is written using a Cyrillic alphabet. The Russian alphabet consists of 33 letters. The following table gives their forms, along with IPA values for each letter's typical sound: Older letters of
1854-593: Is a post-posed definite article -to , -ta , -te similar to that existing in Bulgarian and Macedonian. In the Southern Russian dialects , instances of unstressed /e/ and /a/ following palatalized consonants and preceding a stressed syllable are not reduced to [ɪ] (as occurs in the Moscow dialect), being instead pronounced [a] in such positions (e.g. несл и is pronounced [nʲaˈslʲi] , not [nʲɪsˈlʲi] ) – this
1957-485: Is being used less frequently by Russian-speaking typists in favor of the extension of Unicode character encoding , which fully incorporates the Russian alphabet. Free programs are available offering this Unicode extension, which allow users to type Russian characters, even on Western 'QWERTY' keyboards. The Russian language was first introduced to computing after the M-1 , and MESM models were produced in 1951. According to
2060-613: Is called yakanye ( яканье ). Consonants include a fricative /ɣ/ , a semivowel /w⁓u̯/ and /x⁓xv⁓xw/ , whereas the Standard and Northern dialects have the consonants /ɡ/ , /v/ , and final /l/ and /f/ , respectively. The morphology features a palatalized final /tʲ/ in 3rd person forms of verbs (this is unpalatalized in the Standard and Northern dialects). During the Proto-Slavic (Common Slavic) times all Slavs spoke one mutually intelligible language or group of dialects. There
2163-576: Is featured in the 2019 video game Chernobylite. In episode 12 of the first season of the NBC science fiction series Debris , the Duga radar array makes an appearance as a fictional array in the state of Virginia. The Chernobyl Duga site is featured in the Science Channel series "Mysteries of the Abandoned" (season 1, episode 1). At the end of the first S.T.A.L.K.E.R. 2: Heart of Chornobyl gameplay trailer,
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#17328451616272266-563: Is more spoken than English. Sizable Russian-speaking communities also exist in North America, especially in large urban centers of the US and Canada, such as New York City , Philadelphia , Boston , Los Angeles , Nashville , San Francisco , Seattle , Spokane , Toronto , Calgary , Baltimore , Miami , Portland , Chicago , Denver , and Cleveland . In a number of locations they issue their own newspapers, and live in ethnic enclaves (especially
2369-564: Is odd") – чу́дно ( chúdno – "this is marvellous"), молоде́ц ( molodéts – "well done!") – мо́лодец ( mólodets – "fine young man"), узна́ю ( uznáyu – "I shall learn it") – узнаю́ ( uznayú – "I recognize it"), отреза́ть ( otrezát – "to be cutting") – отре́зать ( otrézat – "to have cut"); to indicate the proper pronunciation of uncommon words, especially personal and family names, like афе́ра ( aféra , "scandal, affair"), гу́ру ( gúru , "guru"), Гарси́я ( García ), Оле́ша ( Olésha ), Фе́рми ( Fermi ), and to show which
2472-402: Is recognized as a minority language under the Framework Convention for the Protection of National Minorities . Russian is the language of 9% of the population according to the World Factbook. Ethnologue cites Russian as the country's de facto working language. In China , Russian has no official status, but it is spoken by the small Russian communities in the northeastern Heilongjiang and
2575-569: Is sometimes considered to have played a significant role in the formation of modern Russian. Also, Russian has notable lexical similarities with Bulgarian due to a common Church Slavonic influence on both languages, but because of later interaction in the 19th and 20th centuries, Bulgarian grammar differs markedly from Russian. Over the course of centuries, the vocabulary and literary style of Russian have also been influenced by Western and Central European languages such as Greek, Latin , Polish , Dutch , German, French, Italian, and English, and to
2678-576: Is spoken by 14.2% of the population according to an undated estimate from the World Factbook. In 2005, Russian was the most widely taught foreign language in Mongolia, and was compulsory in Year 7 onward as a second foreign language in 2006. Around 1.5 million Israelis spoke Russian as of 2017. The Israeli press and websites regularly publish material in Russian and there are Russian newspapers, television stations, schools, and social media outlets based in
2781-518: Is the stressed word in a sentence, for example Ты́ съел печенье? ( Tý syel pechenye? – "Was it you who ate the cookie?") – Ты съе́л печенье? ( Ty syél pechenye? – "Did you eat the cookie?) – Ты съел пече́нье? ( Ty syel pechénye? "Was it the cookie you ate?"). Stress marks are mandatory in lexical dictionaries and books for children or Russian learners. The Russian syllable structure can be quite complex, with both initial and final consonant clusters of up to four consecutive sounds. Using
2884-461: The 2011 Lithuanian census , Russian was the native language for 7.2% of the population. In Moldova , Russian was considered to be the language of interethnic communication under a Soviet-era law. On 21 January 2021, the Constitutional Court of Moldova declared the law unconstitutional and deprived Russian of the status of the language of interethnic communication. 50% of the population
2987-966: The Apollo–Soyuz mission, which first flew in 1975. In March 2013, Russian was found to be the second-most used language on websites after English. Russian was the language of 5.9% of all websites, slightly ahead of German and far behind English (54.7%). Russian was used not only on 89.8% of .ru sites, but also on 88.7% of sites with the former Soviet Union domain .su . Websites in former Soviet Union member states also used high levels of Russian: 79.0% in Ukraine, 86.9% in Belarus, 84.0% in Kazakhstan, 79.6% in Uzbekistan, 75.9% in Kyrgyzstan and 81.8% in Tajikistan. However, Russian
3090-413: The Constitution of Tajikistan and is permitted in official documentation. 28% of the population was fluent in Russian in 2006, and 7% used it as the main language with family, friends or at work. The World Factbook notes that Russian is widely used in government and business. In Turkmenistan , Russian lost its status as the official lingua franca in 1996. Among 12% of the population who grew up in
3193-555: The Internet . Russian is written using the Russian alphabet of the Cyrillic script ; it distinguishes between consonant phonemes with palatal secondary articulation and those without—the so-called "soft" and "hard" sounds. Almost every consonant has a hard or soft counterpart, and the distinction is a prominent feature of the language, which is usually shown in writing not by a change of
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3296-532: The Ptolemaic dynasty , the Greek philosopher Thales is recorded as using similar triangles to estimate the height of the pyramids of ancient Egypt . He measured the length of the pyramids' shadows and that of his own at the same moment, and compared the ratios to his height ( intercept theorem ). Thales also estimated the distances to ships at sea as seen from a clifftop by measuring the horizontal distance traversed by
3399-664: The Russian Federation , Belarus , Kazakhstan , Kyrgyzstan , and Tajikistan , and is still commonly used as a lingua franca in Ukraine , Moldova , the Caucasus , Central Asia , and to a lesser extent in the Baltic states and Israel . Russian has over 258 million total speakers worldwide. It is the most spoken native language in Europe , the most spoken Slavic language , as well as
3502-575: The Ukrainian language in more than 30 spheres of public life: in particular in public administration , media, education, science, culture, advertising, services . The law does not regulate private communication. A poll conducted in March 2022 by RATING in the territory controlled by Ukraine found that 83% of the respondents believe that Ukrainian should be the only state language of Ukraine. This opinion dominates in all macro-regions, age and language groups. On
3605-694: The United States Census , in 2007 Russian was the primary language spoken in the homes of over 850,000 individuals living in the United States. Russian is one of the official languages (or has similar status and interpretation must be provided into Russian) of the following: The Russian language is also one of two official languages aboard the International Space Station – NASA astronauts who serve alongside Russian cosmonauts usually take Russian language courses. This practice goes back to
3708-416: The reporting name STEEL WORK or STEEL YARD , based on the massive size of the antenna, which spanned 700 metres (2,300 ft) in length and 150 metres (490 ft) in height. This massive structure formed a phased array and was necessary in order to provide high gain at HF as well as facilitating beam-steering , though it is unconfirmed whether the latter was actually used in normal operation. While
3811-508: The 20th century, Russian was a mandatory language taught in the schools of the members of the old Warsaw Pact and in other countries that used to be satellites of the USSR. According to the Eurobarometer 2005 survey, fluency in Russian remains fairly high (20–40%) in some countries, in particular former Warsaw Pact countries. In Armenia , Russian has no official status, but it is recognized as
3914-465: The Belarusian society the Russian language prevails, so according to the 2019 census 6,718,557 people (71.4% of the total population) stated that they speak Russian at home, for ethnic Belarusians this share is 61.4%, for Russians — 97.2%, for Ukrainians — 89.0%, for Poles — 52.4%, and for Jews — 96.6%; 2,447,764 people (26.0% of the total population) stated that the language they usually speak at home
4017-580: The Chernobyl Exclusion Zone, including to the Duga, and was praised by reviewers. TOP10 books of 2019 according to La Repubblica as one of the "Constellations of the ten books that best reflect the spirit of the times". The Guardian called it a “remarkable book”. In Call of Duty: Black Ops , the map "Grid" is placed in Pripyat near the Duga-1 array. A game later in the series, Cold War , uses
4120-413: The Duga-1 is often quoted as STEEL YARD. Many online and several print references use this name. However some sources also use the term STEEL WORK (or STEEL WORKS). As any "official" sources using NATO Reporting Names are likely to be classified, establishing the true name will be difficult. The earliest found open source mention of a NATO Reporting Name for this system, a reference publication in print while
4223-554: The FCC was publishing studies, the signals became less frequent, and in 1989, they disappeared. Although the reasons for the eventual shutdown of the Duga systems have not been made public, the changing strategic balance with the end of the Cold War in the late 1980s may have had a part to play. Another factor perhaps was the success of the US-KS early-warning satellites, which began entering service in
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4326-668: The Far East and from submarines in the Pacific Ocean , as the missiles fly towards Novaya Zemlya in the Arctic Ocean. This huge radar complex was restored in 2002 after a fire seriously damaged it. The transmitter was located at 46°48′26″N 32°13′12″E / 46.80722°N 32.22000°E / 46.80722; 32.22000 and the receiver at 47°02′28.33″N 32°11′57.29″E / 47.0412028°N 32.1992472°E / 47.0412028; 32.1992472 . It appears that
4429-519: The Great and developed from the Moscow ( Middle or Central Russian ) dialect substratum under the influence of some of the previous century's Russian chancery language. Prior to the Bolshevik Revolution , the spoken form of the Russian language was that of the nobility and the urban bourgeoisie. Russian peasants, the great majority of the population, continued to speak in their own dialects. However,
4532-564: The Greeks called a dioptra , the forerunner of the Arabic alidade . A detailed contemporary collection of constructions for the determination of lengths from a distance using this instrument is known, the Dioptra of Hero of Alexandria ( c. 10 –70 AD), which survived in Arabic translation; but the knowledge became lost in Europe until in 1615 Snellius , after the work of Eratosthenes , reworked
4635-578: The Institute of Russian Language of the Russian Academy of Sciences, an optional acute accent ( знак ударения ) may, and sometimes should, be used to mark stress . For example, it is used to distinguish between otherwise identical words, especially when context does not make it obvious: замо́к ( zamók – "lock") – за́мок ( zámok – "castle"), сто́ящий ( stóyashchy – "worthwhile") – стоя́щий ( stoyáshchy – "standing"), чудно́ ( chudnó – "this
4738-515: The Middle East and North Africa – 1.3 million, Sub-Saharan Africa – 0.1 million, Latin America – 0.2 million, U.S., Canada , Australia, and New Zealand – 4.1 million speakers. Therefore, the Russian language is the seventh-largest in the world by the number of speakers , after English, Mandarin, Hindi -Urdu, Spanish, French, Arabic, and Portuguese. Russian is one of the six official languages of
4841-807: The Russian alphabet include ⟨ ѣ ⟩ , which merged to ⟨ е ⟩ ( /je/ or /ʲe/ ); ⟨ і ⟩ and ⟨ ѵ ⟩ , which both merged to ⟨ и ⟩ ( /i/ ); ⟨ ѳ ⟩ , which merged to ⟨ ф ⟩ ( /f/ ); ⟨ ѫ ⟩ , which merged to ⟨ у ⟩ ( /u/ ); ⟨ ѭ ⟩ , which merged to ⟨ ю ⟩ ( /ju/ or /ʲu/ ); and ⟨ ѧ ⟩ and ⟨ ѩ ⟩ , which later were graphically reshaped into ⟨ я ⟩ and merged phonetically to /ja/ or /ʲa/ . While these older letters have been abandoned at one time or another, they may be used in this and related articles. The yers ⟨ ъ ⟩ and ⟨ ь ⟩ originally indicated
4944-458: The Russian principalities before and especially during Mongol rule. This strengthened dialectal differences, and for a while, prevented the emergence of a standardized national language. The formation of the unified and centralized Russian state in the 15th and 16th centuries, and the gradual re-emergence of a common political, economic, and cultural space created the need for a common standard language. The initial impulse for standardization came from
5047-454: The Soviet era can speak Russian, other generations of citizens that do not have any knowledge of Russian. Primary and secondary education by Russian is almost non-existent. In Uzbekistan , Russian is the language of inter-ethnic communication. It has some official roles, being permitted in official documentation and is the lingua franca of the country and the language of the elite. Russian
5150-494: The US and covering blank spots in the first system's pattern, this conclusion became inescapable. These further installations allowed for more precise pin-pointing of potential targets or missiles in multiple dimensions thanks in part to the properties of the Barker codes that allow for multiple radars operating on the same frequencies without significant interference. In 1988, the U.S. Federal Communications Commission (FCC) conducted
5253-460: The United Nations. Education in Russian is still a popular choice for both Russian as a second language (RSL) and native speakers in Russia, and in many former Soviet republics. Russian is still seen as an important language for children to learn in most of the former Soviet republics. In Belarus , Russian is a second state language alongside Belarusian per the Constitution of Belarus . 77% of
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#17328451616275356-503: The amateur radio community was well aware of the system, the OTH theory was not publicly confirmed until after the dissolution of the Soviet Union . The Soviets had been working on early-warning radar for their anti-ballistic missile systems through the 1960s, but most of these had been line-of-sight systems that were useful for rapid analysis and interception only. None of these systems had
5459-455: The antenna still stands and is often used by radio amateurs who visit the area using their own portable radio equipment. The original Duga was the first experimental system. It was built outside the Black Sea port of Mykolaiv in southern Ukraine , and successfully detected rocket launches from Baikonur Cosmodrome about 2,500 kilometres (1,600 mi) away. Duga is able to track launches from
5562-670: The area, including the Duga-1 array. The array itself appears in S.T.A.L.K.E.R.: Clear Sky in the fictional city of Limansk-13. While the 'Brain Scorcher' from S.T.A.L.K.E.R.: Shadow of Chernobyl was inspired by theories that Duga-1 was used for mind control, it does not take the form of the real array. Markiyan Kamysh 's book Stalking the Atomic City: Life Among the Decadent and the Depraved of Chornobyl depicts illegal trips to
5665-403: The broader sense of expanding the use of Russian alongside or in favour of other languages. The current standard form of Russian is generally regarded as the modern Russian literary language ( современный русский литературный язык – "sovremenny russky literaturny yazyk"). It arose at the beginning of the 18th century with the modernization reforms of the Russian state under the rule of Peter
5768-441: The capability to provide early warning of a launch, within seconds or minutes of a launch, which would give the defences time to study the attack and plan a response. At the time, the Soviet early warning satellite network was not well developed. An over-the-horizon radar sited in the USSR would help solve this problem, and work on such a system for this associated role started in the late 1960s. The first experimental system, Duga,
5871-481: The city, and the transmitter at 50°53′34.66″N 136°50′12.38″E / 50.8929611°N 136.8367722°E / 50.8929611; 136.8367722 , 45 kilometres (28 mi) north of the city. The Ukrainian-developed computer game series S.T.A.L.K.E.R. has a plot focused on the Chernobyl Nuclear Power Plant and the nuclear accident there. The game features many actual locations in
5974-494: The concept proven, work began on an operational system. The new Duga-1 systems, built in 1972, used a transmitter and receiver separated by about 60 kilometres (37 mi). At some point in 1976, a new and powerful radio signal was detected simultaneously worldwide, and quickly dubbed 'the Woodpecker' by amateur radio operators. Transmission power on some Woodpecker transmitters was estimated to be as high as 10 MW equivalent isotropically radiated power . Even prior to 1976,
6077-417: The consonant but rather by changing the following vowel. Another important aspect is the reduction of unstressed vowels . Stress , which is often unpredictable, is not normally indicated orthographically , though an optional acute accent may be used to mark stress – such as to distinguish between homographic words (e.g. замо́к [ zamók , 'lock'] and за́мок [ zámok , 'castle']), or to indicate
6180-562: The country. There is an Israeli TV channel mainly broadcasting in Russian with Israel Plus . See also Russian language in Israel . Russian is also spoken as a second language by a small number of people in Afghanistan . In Vietnam , Russian has been added in the elementary curriculum along with Chinese and Japanese and were named as "first foreign languages" for Vietnamese students to learn, on equal footing with English. The Russian language
6283-600: The duga as location for a possible final mission and as a map in the Zombies game-mode “Outbreak”, the map being appropriately named "Duga". The said map has rappel lines that can take the player(s) up to the top or middle of the Duga, despite the actual radar array lacking this. The Duga antenna array is also featured on the revised map "Verdansk '84" in the game Call of Duty: Warzone . The 'Russian woodpecker' appears in Justin Scott's novel The Shipkiller . The Duga at Chernobyl
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#17328451616276386-616: The early 1980s, and by this time had grown into a complete network. The satellite system provides immediate, direct and highly secure warnings, whereas any radar-based system is subject to jamming, and the effectiveness of OTH systems is also subject to atmospheric conditions. According to some reports, the Komsomolsk-on-Amur installation in the Russian Far East was taken off combat alert duty in November 1989, and some of its equipment
6489-413: The factory and the industrial plant their local peasant dialects with their phonetics, grammar, and vocabulary, and the very process of recruiting workers from peasants and the mobility of the worker population generate another process: the liquidation of peasant inheritance by way of leveling the particulars of local dialects. On the ruins of peasant multilingual, in the context of developing heavy industry,
6592-451: The final reading amendments that state that all schools and kindergartens in the country are to transition to education in Latvian . From 2025, all children will be taught in Latvian only. On 28 September 2023, Latvian deputies approved The National Security Concept, according to which from 1 January 2026, all content created by Latvian public media (including LSM ) should be only in Latvian or
6695-505: The generation of immigrants who started arriving in the early 1960s). Only about 25% of them are ethnic Russians, however. Before the dissolution of the Soviet Union , the overwhelming majority of Russophones in Brighton Beach, Brooklyn in New York City were Russian-speaking Jews. Afterward, the influx from the countries of the former Soviet Union changed the statistics somewhat, with ethnic Russians and Ukrainians immigrating along with some more Russian Jews and Central Asians. According to
6798-480: The government bureaucracy for the lack of a reliable tool of communication in administrative, legal, and judicial affairs became an obvious practical problem. The earliest attempts at standardizing Russian were made based on the so-called Moscow official or chancery language, during the 15th to 17th centuries. Since then, the trend of language policy in Russia has been standardization in both the restricted sense of reducing dialectical barriers between ethnic Russians, and
6901-428: The late ’60s and early ’70s, sometimes completely blocking even local communications in Portugal, for example, leading to the supposition of several megawatts of RF power transmission. Triangulation by amateur radio hobbyists and NATO showed the signals came from a location in present-day Ukraine , at the time called the Ukrainian Soviet Socialist Republic (part of the USSR ). Confusion due to small differences in
7004-412: The line-of-sight for a known fall, and scaling up to the height of the whole cliff. Such techniques would have been familiar to the ancient Egyptians. Problem 57 of the Rhind papyrus , a thousand years earlier, defines the seqt or seked as the ratio of the run to the rise of a slope , i.e. the reciprocal of gradients as measured today. The slopes and angles were measured using a sighting rod that
7107-405: The most common frequency of 10 Hz, while the 16 Hz and 20 Hz modes were rarely used. To combat this interference, amateur radio operators attempted to jam the signal by transmitting synchronized unmodulated continuous wave signals at the same pulse rate as the offending signal. They formed a club called The Russian Woodpecker Hunting Club. Starting in the late 1980s, even as
7210-409: The most geographically widespread language of Eurasia . It is the world's seventh-most spoken language by number of native speakers , and the world's ninth-most spoken language by total number of speakers . Russian is one of two official languages aboard the International Space Station , one of the six official languages of the United Nations , as well as the fourth most widely used language on
7313-417: The most popular hypothesis during the Cold War . Several other theories were floated as well, including everything from jamming western broadcasts to submarine communications . The broadcast jamming theory was discarded early on when a monitoring survey showed that Radio Moscow and other pro-Soviet stations were just as badly affected by woodpecker interference as Western stations. As more information about
7416-516: The northwestern Xinjiang Uyghur Autonomous Region . Russian was also the main foreign language taught in school in China between 1949 and 1964. In Kazakhstan , Russian is not a state language, but according to article 7 of the Constitution of Kazakhstan its usage enjoys equal status to that of the Kazakh language in state and local administration. The 2009 census reported that 10,309,500 people, or 84.8% of
7519-467: The original Duga transmit and receive sites near Mykolaiv, Ukraine were demolished in 2006. The original Duga was supplanted by a pair of installations: western, Duga-1, and eastern, Duga-2. Duga-1 was built in northern Ukraine, between Liubech and Chernobyl -2. The receiver is located at 51°18′19.06″N 30°03′57.35″E / 51.3052944°N 30.0659306°E / 51.3052944; 30.0659306 , 12 kilometers west-north-west of Chernobyl;
7622-515: The other hand, before the war, almost a quarter of Ukrainians were in favour of granting Russian the status of the state language, while after the beginning of Russia's invasion the support for the idea dropped to just 7%. In peacetime, the idea of raising the status of Russian was traditionally supported by residents of the south and east . But even in these regions, only a third of the respondents were in favour, and after Russia's full-scale invasion , their number dropped by almost half. According to
7725-619: The other in eastern Siberia (present-day Russia ). The duga system was extremely powerful, reaching over 10 MW , and emitted in the shortwave radio bands. It was given the nickname Russian Woodpecker by shortwave listeners for its emissions randomly appearing and sounding like sharp, repetitive tapping noises at a frequency of 10 Hz . The random frequency hops often disrupted legitimate broadcasts, amateur radio operations, oceanic, commercial, aviation communications, and utility transmissions, resulting in thousands of complaints by many countries worldwide. The signal became such
7828-417: The other one can also be a camera or a light projector. The projection centers of the sensors and the considered point on the object's surface define a (spatial) triangle. Within this triangle, the distance between the sensors is the base b and must be known. By determining the angles between the projection rays of the sensors and the basis, the intersection point, and thus the 3D coordinate, is calculated from
7931-455: The other three languages in the East Slavic branch. In many places in eastern and southern Ukraine and throughout Belarus, these languages are spoken interchangeably, and in certain areas traditional bilingualism resulted in language mixtures such as Surzhyk in eastern Ukraine and Trasianka in Belarus. An East Slavic Old Novgorod dialect , although it vanished during the 15th or 16th century,
8034-446: The parliament approved a bill to close up all Russian language schools and kindergartens by the school year. The transition to only Estonian language schools and kindergartens will start in the 2024-2025 school year. In Latvia , Russian is officially considered a foreign language. 55% of the population was fluent in Russian in 2006, and 26% used it as the main language with family, friends, or at work. On 18 February 2012, Latvia held
8137-453: The peasants' speech was never systematically studied, as it was generally regarded by philologists as simply a source of folklore and an object of curiosity. This was acknowledged by the noted Russian dialectologist Nikolai Karinsky , who toward the end of his life wrote: "Scholars of Russian dialects mostly studied phonetics and morphology. Some scholars and collectors compiled local dictionaries. We have almost no studies of lexical material or
8240-410: The point directly as in trilateration ; the use of both angles and distance measurements is referred to as triangulateration . Computer stereo vision and optical 3D measuring systems use this principle to determine the spatial dimensions and the geometry of an item. Basically, the configuration consists of two sensors observing the item. One of the sensors is typically a digital camera device, and
8343-455: The population aged 15 and above, could read and write well in Russian, and understand the spoken language. In October 2023, Kazakhstan drafted a media law aimed at increasing the use of the Kazakh language over Russian, the law stipulates that the share of the state language on television and radio should increase from 50% to 70%, at a rate of 5% per year, starting in 2025. In Kyrgyzstan , Russian
8446-418: The population was fluent in Russian in 2006, and 67% used it as the main language with family, friends, or at work. According to the 2019 Belarusian census , out of 9,413,446 inhabitants of the country, 5,094,928 (54.1% of the total population) named Belarusian as their native language, with 61.2% of ethnic Belarusians and 54.5% of ethnic Poles declaring Belarusian as their native language. In everyday life in
8549-475: The pronunciation of ultra-short or reduced /ŭ/ , /ĭ/ . Because of many technical restrictions in computing and also because of the unavailability of Cyrillic keyboards abroad, Russian is often transliterated using the Latin alphabet. For example, мороз ('frost') is transliterated moroz , and мышь ('mouse'), mysh or myš' . Once commonly used by the majority of those living outside Russia, transliteration
8652-466: The proper pronunciation of uncommon words or names. Russian is an East Slavic language of the wider Indo-European family . It is a descendant of Old East Slavic , a language used in Kievan Rus' , which was a loose conglomerate of East Slavic tribes from the late 9th to the mid-13th centuries. From the point of view of spoken language , its closest relatives are Ukrainian , Belarusian , and Rusyn ,
8755-435: The reports being made from various sources led to the site being variously located near Kyiv , Minsk , Chernobyl , Gomel or Chernihiv . All of these reports were describing the same deployment, with the transmitter only a few kilometers southwest of Chernobyl (south of Minsk, northwest of Kyiv) and the receiver about 50 kilometres (31 mi) northeast of Chernobyl (just west of Chernihiv, south of Gomel). At one time there
8858-491: The respondents), while according to the 2002 census – 142.6 million people (99.2% of the respondents). In Ukraine , Russian is a significant minority language. According to estimates from Demoskop Weekly, in 2004 there were 14,400,000 native speakers of Russian in the country, and 29 million active speakers. 65% of the population was fluent in Russian in 2006, and 38% used it as the main language with family, friends, or at work. On 5 September 2017, Ukraine's Parliament passed
8961-423: The signal became available, its purpose as a radar signal became increasingly obvious. In particular, its signal contained a clearly recognizable structure in each BPSK modulated pulse , which was eventually identified as a 31-bit pseudo-random binary sequence with properties much like Barker codes , with a bit-width of 100 μs resulting in a 3.1 ms pulse. The auto-correlation of this pulse/sequence results in
9064-505: The surroundings as well as a climb to the top by the cinematographer, Artem Ryzhykov. The film also proposes a conspiracy theory that the Chernobyl disaster was engineered to cover up failures in the radar's design. The Duga radar is featured in the drone racing simulator Liftoff, as "The Russian Woodpecker". The Duga radar is also featured in the films of the Divergent series , where it
9167-675: The survey carried out by RATING in August 2023 in the territory controlled by Ukraine and among the refugees, almost 60% of the polled usually speak Ukrainian at home, about 30% – Ukrainian and Russian, only 9% – Russian. Since March 2022, the use of Russian in everyday life has been noticeably decreasing. For 82% of respondents, Ukrainian is their mother tongue, and for 16%, Russian is their mother tongue. IDPs and refugees living abroad are more likely to use both languages for communication or speak Russian. Nevertheless, more than 70% of IDPs and refugees consider Ukrainian to be their native language. In
9270-459: The syntax of Russian dialects." After 1917, Marxist linguists had no interest in the multiplicity of peasant dialects and regarded their language as a relic of the rapidly disappearing past that was not worthy of scholarly attention. Nakhimovsky quotes the Soviet academicians A.M Ivanov and L.P Yakubinsky, writing in 1930: The language of peasants has a motley diversity inherited from feudalism. On its way to becoming proletariat peasantry brings to
9373-446: The system was still active, unambiguously uses the term STEEL WORK. Jane's Information Group is an often quoted open source reference for information across several military fields and subjects. Their "Jane's Radar and Electronic Warfare Systems", several editions over a number of years, uses the term "Steel Works". Even from the earliest reports it was suspected that the signals were tests of an over-the-horizon radar , and this remained
9476-601: The transmitter is located at 51°38′15.98″N 30°42′10.41″E / 51.6377722°N 30.7028917°E / 51.6377722; 30.7028917 about 50 kilometres (31 mi) northeast of Chernobyl (just west of Chernihiv , south of Gomel ). Duga-2, the eastern system, is located near Komsomolsk-on-Amur in Khabarovsk Krai , with the receiver at 50°23′07.98″N 137°19′41.87″E / 50.3855500°N 137.3282972°E / 50.3855500; 137.3282972 , some 30 kilometres (19 mi) southeast of
9579-410: The triangular relations. Triangulation today is used for many purposes, including surveying , navigation , metrology , astrometry , binocular vision , model rocketry and, in the military, the gun direction, the trajectory and distribution of fire power of weapons . The use of triangles to estimate distances dates to antiquity. In the 6th century BC, about 250 years prior to the establishment of
9682-770: The two. Others divide the language into three groupings, Northern , Central (or Middle), and Southern , with Moscow lying in the Central region. The Northern Russian dialects and those spoken along the Volga River typically pronounce unstressed /o/ clearly, a phenomenon called okanye ( оканье ). Besides the absence of vowel reduction, some dialects have high or diphthongal /e⁓i̯ɛ/ in place of Proto-Slavic * ě and /o⁓u̯ɔ/ in stressed closed syllables (as in Ukrainian) instead of Standard Russian /e/ and /o/ , respectively. Another Northern dialectal morphological feature
9785-506: The use of the language has some presence in certain areas. A large part of the population, especially the older generations, can speak Russian as a foreign language. However, English has replaced Russian as lingua franca in Lithuania and around 80% of young people speak English as their first foreign language. In contrast to the other two Baltic states, Lithuania has a relatively small Russian-speaking minority (5.0% as of 2008). According to
9888-479: Was built outside Mykolaiv in Ukraine , successfully detecting rocket launches from Baikonur Cosmodrome at 2,500 kilometres (1,600 mi). This was followed by the prototype Duga, built on the same site, which was able to track launches from the far east and submarines in the Pacific Ocean as the missiles flew towards Novaya Zemlya . Both of these radar systems were aimed east and were fairly low power, but with
9991-405: Was first introduced in North America when Russian explorers voyaged into Alaska and claimed it for Russia during the 18th century. Although most Russian colonists left after the United States bought the land in 1867, a handful stayed and preserved the Russian language in this region to this day, although only a few elderly speakers of this unique dialect are left. In Nikolaevsk, Alaska , Russian
10094-421: Was fluent in Russian in 2006, and 19% used it as the main language with family, friends, or at work. According to the 2014 Moldovan census , Russians accounted for 4.1% of Moldova's population, 9.4% of the population declared Russian as their native language, and 14.5% said they usually spoke Russian. According to the 2010 census in Russia , Russian language skills were indicated by 138 million people (99.4% of
10197-571: Was speculation that several transmitters were in use. The radar system was given the code 5Н32-West by the Soviets, and was set up in two closed towns , Liubech-1 held the two transmitters and Chernobyl-2 the receivers. Unknown to civilian observers at the time, NATO was aware of the new installation. A second installation was built near Komsomolsk-on-Amur , in Bolshya Kartel and Lian, but did not become active for some time. The NATO reporting name for
10300-480: Was subsequently scrapped. The original Duga-1 site lies within the 30 kilometres (19 mi) Zone of Alienation around the Chernobyl power plant . As of today, the radar appears permanently deactivated and will not likely receive future maintenance because such arrangements were not implemented within Russian and Ukrainian talks; with regards to the Dnepr early warning radar systems at Mukachevo and Sevastopol , most of
10403-562: Was the focus of the 2015 documentary film, The Russian Woodpecker , by Chad Gracia. The film includes interviews with the commander of the duga, Vladimir Musiets, as well as the Vice-Commander, the Head of the Data Center, and others involved in building and operating the radar. The documentary, which won numerous awards, also includes drone video footage of the array and handheld video footage of
10506-402: Was the sixth-most used language on the top 1,000 sites, behind English, Chinese, French, German, and Japanese. Despite leveling after 1900, especially in matters of vocabulary and phonetics, a number of dialects still exist in Russia. Some linguists divide the dialects of Russian into two primary regional groupings, "Northern" and "Southern", with Moscow lying on the zone of transition between
10609-411: Was used as the giant wall and fence surrounding the main city. In wide shots, its structure was used to create computer-generated imagery of the superstructure and several close-up scenes were shot directly at its location. A Duga radar is featured in the 2017 game PUBG: Battlegrounds in a map which portrays a fictional Russian Military base. The Chernobyl DLC for the game Spintires features
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