paragraph_text: Unlike the American GPS, Russian GLONASS, and European Galileo systems, which use medium Earth orbit satellites, BeiDou-1 uses satellites in geostationary orbit. This means that the system does not require a large constellation of satellites, but it also limits the coverage to areas on Earth where the satellites are visible. The area that can be serviced is from longitude 70°E to 140°E and from latitude 5°N to 55°N. A frequency of the system is 2491.75 MHz.

paragraph_text: Japan32 International Teams of Friendship participated in the 2018 Football for Friendship World Championship. For the first time in the history of the programme, the final match was commented by a Young Commentator from Syria, Yazan Taha and judged by a Young Referee from Russia, Bogdan Batalin. The winner of the 2018 Football for Friendship World Championship was the “Chimpanzees” team consisting of Young Players from Dominica, St. Kitts and Nevis, Malawi, Colombia, Benin and the Democratic Republic of the Congo. Vladislav Polyakov, a Young Participant from Saransk, Russia, coached the team. The final event of the Sixth season of the programme became the 2018 International Football for Friendship Children’s Forum, held on June 13 at the Centre for Oceanography and Marine Biology "Moskvarium". It was visited by Viktor Zubkov (Chairman of the Gazprom Board of Directors), Olga Golodets (Deputy Prime Minister of the Russian Federation), Iker Casillas (Spanish football player, ex-captain of the national team), Aleksandr Kerzhakov (Russian football player, coach of the Russian youth football team), as well as representatives of 54 embassies from all around the world and other guests.

paragraph_text: Raisa Maximovna Gorbacheva ( "Raisa Maksimovna Gorbachyova", , Титаренко; 5 January 1932 – 20 September 1999) was a Russian activist who was the wife of Soviet leader Mikhail Gorbachev. She raised funds for the preservation of Russian cultural heritage, fostering of new talent, and treatment programs for children's blood cancer.

paragraph_text: ``Newton's cannonball '', presented as a`` thought experiment'' in A Treatise of the System of the World, by Isaac Newton was the first published mathematical study of the possibility of an artificial satellite.

paragraph_text: In a nationally televised speech early in the morning of December 25, 1991, Gorbachev resigned as president of the USSR – or, as he put it, "I hereby discontinue my activities at the post of President of the Union of Soviet Socialist Republics." He declared the office extinct, and all of its powers (such as control of the nuclear arsenal) were ceded to Yeltsin. A week earlier, Gorbachev had met with Yeltsin and accepted the fait accompli of the Soviet Union's dissolution. On the same day, the Supreme Soviet of the Russian SFSR adopted a statute to change Russia's legal name from "Russian Soviet Federative Socialist Republic" to "Russian Federation," showing that it was now a sovereign state.

paragraph_text: Russian company General Satellite took up an active stand in a campaign against copyright infringement. The company is an associated member of European Association for the Protection of Encrypted Works and Services (AEPOC). According to General Satellite information, up to 25% of satellite receivers in Russia are unauthorized.

paragraph_text: In 1957 the Soviet Union launched the world's first artificial satellite, Sputnik 1. Since then, about 6,600 satellites from more than 40 countries have been launched. According to a 2013 estimate, 3,600 remained in orbit. Of those, about 1,000 were operational; while the rest have lived out their useful lives and become space debris. Approximately 500 operational satellites are in low - Earth orbit, 50 are in medium - Earth orbit (at 20,000 km), and the rest are in geostationary orbit (at 36,000 km). A few large satellites have been launched in parts and assembled in orbit. Over a dozen space probes have been placed into orbit around other bodies and become artificial satellites to the Moon, Mercury, Venus, Mars, Jupiter, Saturn, a few asteroids, a comet and the Sun.

paragraph_text: On December 30, 1922, with the creation of the Soviet Union, Russia became one of six republics within the federation of the Union of Soviet Socialist Republics. The final Soviet name for the republic, the Russian Soviet Federative Socialist Republic, was adopted in the Soviet Constitution of 1936. By that time, Soviet Russia had gained roughly the same borders of the old Tsardom of Russia before the Great Northern War of 1700.

paragraph_text: Soledad Román de Núñez (1835-1924) was the first lady of Colombia in 1880-82, 1884–88 and 1892, by her marriage to president Rafael Núñez. She is considered to have wielded a considerable influence in policy and participated in state affairs in Colombia during the presidencies of her spouse more than any other woman in Colombia before her. She is credited with the victory of the government in the conflict of 1885, as well as the concordat of 1887. She was a controversial figure, because her marriage was not recognized by the Catholic church, as the wedding had been civil, as her spouse's first wife was still alive and he was still married to her in the eyes of the Catholic church.

paragraph_text: In the 20th century, Russian was mandatorily taught in the schools of the members of the old Warsaw Pact and in other countries that used to be satellites of the USSR. In particular, these countries include Poland, Bulgaria, the Czech Republic, Slovakia, Hungary, Albania, former East Germany and Cuba. However, younger generations are usually not fluent in it, because Russian is no longer mandatory in the school system. According to the Eurobarometer 2005 survey, though, fluency in Russian remains fairly high (20–40%) in some countries, in particular those where the people speak a Slavic language and thereby have an edge in learning Russian (namely, Poland, Czech Republic, Slovakia, and Bulgaria).

paragraph_text: The Crimean People's Republic () () existed from December 1917 to January 1918 in the Crimean Peninsula, a territory currently disputed between the Russian Federation and Ukraine. Crimean People’s Republic was the first Turkic and Muslim democratic republic in the world. In its founding, the Crimean People's Republic was one of many short-lived attempts to create new states after the Russian Revolution of 1917 had caused the Russian Empire to collapse.

paragraph_text: The Russian SFSR was controlled by the Communist Party of the Soviet Union, until the abortive 1991 August coup, which prompted President Yeltsin to suspend the recently created Communist Party of the Russian Soviet Federative Socialist Republic.

paragraph_text: Inventions That Changed the World is a five-part BBC Two documentary series presented by Jeremy Clarkson. First broadcast on 15 January 2004, the programme takes a look at some of the inventions that helped to shape the modern world. The UKTV channel "Yesterday" frequently repeats this series. However, episodes are edited to 46 minutes to allow for commercials to air in the one-hour time slot.

paragraph_text: Although the Russian Caucasus Army of Imperial forces commanded by Nikolai Yudenich and Armenians in volunteer units and Armenian militia led by Andranik Ozanian and Tovmas Nazarbekian succeeded in gaining most of Ottoman Armenia during World War I, their gains were lost with the Bolshevik Revolution of 1917.[citation needed] At the time, Russian-controlled Eastern Armenia, Georgia, and Azerbaijan attempted to bond together in the Transcaucasian Democratic Federative Republic. This federation, however, lasted from only February to May 1918, when all three parties decided to dissolve it. As a result, the Dashnaktsutyun government of Eastern Armenia declared its independence on 28 May as the First Republic of Armenia under the leadership of Aram Manukian.

paragraph_text: The Far Eastern Republic (), sometimes called the Chita Republic, was a nominally independent state that existed from April 1920 to November 1922 in the easternmost part of the Russian Far East. Although theoretically independent, it largely came under the control of the Russian Soviet Federative Socialist Republic (RSFSR), which envisaged it as a buffer state between the RSFSR and the territories occupied by Japan during the Russian Civil War of 1917-1922. Its first president was Alexander Krasnoshchyokov.

paragraph_text: The President of the Federal Republic of Nigeria is the head of state and head of the national executive of Nigeria. The President of Nigeria is also the commander - in - chief of the Nigerian Armed Forces. The President is elected in national elections which take place every four years. The first President of Nigeria was Nnamdi Azikiwe, who took office on 1 October 1963. The current President, Muhammadu Buhari, took office on 29 May 2015 as the 15th President of the Federal Republic of Nigeria.

paragraph_text: Gherman V. Pântea (; surname also spelled Pîntea; , "German Vasilievich Pyntya"; , "Herman Vasilyovich Pyntya" or "Pintia"; May 13, 1894 – February 1, 1968) was a Bessarabian-born soldier, civil servant and political figure, active in the Russian Empire and Romania. As an officer of the Imperial Russian Army during most of World War I, he helped organize the committees of Bessarabian soldiers, oscillating between loyalty to the Russian Provisional Government and the cause of Bessarabian emancipation. Pântea was subsequently Military Director of the Moldavian Democratic Republic, answering to President Ion Inculeț. He personally created a Bessarabian defense force, tasked with combating Bolshevik subversion and Russian intimidation, but also braced for defeat after the October Revolution.

paragraph_text: The dissolution of the Soviet Union occurred on December 26, 1991, officially granting self - governing independence to the Republics of the Soviet Union. It was a result of the declaration number 142 - Н of the Supreme Soviet of the Soviet Union. The declaration acknowledged the independence of the former Soviet republics and created the Commonwealth of Independent States (CIS), although five of the signatories ratified it much later or did not do so at all. On the previous day, 25 December 1991, Soviet President Mikhail Gorbachev, the eighth and final leader of the Soviet Union, resigned, declared his office extinct, and handed over its powers -- including control of the Soviet nuclear missile launching codes -- to Russian President Boris Yeltsin. That evening at 7: 32 p.m., the Soviet flag was lowered from the Kremlin for the last time and replaced with the pre-revolutionary Russian flag.

paragraph_text: In 2007, the United States Mint began releasing a set of half-ounce $10 gold coins under the First Spouse Program with engravings of portraits of the First Ladies on the obverse. When a President served without a spouse, a gold coin was issued that bears an obverse image emblematic of Liberty as depicted on a circulating coin of that era and a reverse image emblematic of themes of that President's life. This is true for the coins for Thomas Jefferson, Andrew Jackson, Martin Van Buren, and James Buchanan's First Ladies, but not the coin for Chester A. Arthur's First Lady, which instead depicts suffragette Alice Paul.

paragraph_text: On January 25, 1918 the third meeting of the All-Russian Congress of Soviets renamed the unrecognized state the Soviet Russian Republic. The Treaty of Brest-Litovsk was signed on March 3, 1918, giving away much of the land of the former Russian Empire to Germany in exchange for peace during the rest of World War I. On July 10, 1918, the Russian Constitution of 1918 renamed the country the Russian Socialist Federative Soviet Republic. By 1918, during the Russian Civil War, several states within the former Russian Empire seceded, reducing the size of the country even more.

Question: Who was married to the Russian Republic's president during the disintegration of the inventors of the world's first satellite?
Answer: Raisa Maximovna Gorbacheva