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Iosif Samuilovich Shklovsky
Iosif Samuilovich Shklovsky (russian: Ио́сиф Самуи́лович Шкло́вский; sometimes transliterated ''Josif, Josif, Shklovskii, Shklovskij'') (1 July 1916 – 3 March 1985) was a Soviet Union, Soviet astronomer and astrophysicist. He is remembered for work in theoretical astrophysics and other topics, as well as for his 1962 book on extraterrestrial life, the revised and expanded version of which was co-authored by American astronomer Carl Sagan in 1966 as ''Intelligent Life in the Universe''. He won the Lenin Prize in 1960 and the Bruce Medal in 1972. Asteroid 2849 Shklovskij and the crater Shklovsky (crater), Shklovsky (on the Mars, Martian moon Phobos (moon), Phobos) are named in his honor. He was a Corresponding Member of Soviet Academy of Sciences since 1966. Early life Shklovsky was born in Hlukhiv, a city in the Ukraine, Ukrainian part of the Russian Empire, into a poor Ukrainian Jewish family. After graduating from the seven-year secondary school, ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Hlukhiv
Hlukhiv ( uk, Глу́хів, ) or Glukhov (russian: Глухов, translit=Glukhov) is a small historic town on the Esman River. It is a City of regional significance (Ukraine), city of regional significance in the Sumy Oblast, Sumy region of Ukraine. Hlukhiv is administratively incorporated as a City of regional significance (Ukraine), city of oblast significance. Hlukhiv Municipality includes Hlukhiv and the village of Sliporod. Hlukhiv also serves as administrative center of Hlukhiv Raion but does not belong to the raion. Population: It is known for being a capital of the Cossack Hetmanate after deposition of Ivan Mazepa in 1708–1764. The former Soviet Chervone-Pustohorod air base is located near Hlukhiv. History First noticed by chroniclers as a Severian town in 1152. Sometime in 1247 Hlukhiv became the seat of a branch of the princely house of Chernigov following the Mongol invasion of Rus. Between 1320 and 1503 it was part of the Grand Duchy of Lithuania before bein ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Carl Sagan
Carl Edward Sagan (; ; November 9, 1934December 20, 1996) was an American astronomer, planetary scientist, cosmologist, astrophysicist, astrobiologist, author, and science communicator. His best known scientific contribution is research on extraterrestrial life, including experimental demonstration of the production of amino acids from basic chemicals by radiation. Sagan assembled the first physical messages sent into space, the Pioneer plaque and the Voyager Golden Record, universal messages that could potentially be understood by any extraterrestrial intelligence that might find them. Sagan argued the hypothesis, accepted since, that the high surface temperatures of Venus can be attributed to, and calculated using, the greenhouse effect.Extract of page 14 Initially an assistant professor at [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Solar Corona
A corona ( coronas or coronae) is the outermost layer of a star's atmosphere. It consists of plasma. The Sun's corona lies above the chromosphere and extends millions of kilometres into outer space. It is most easily seen during a total solar eclipse, but it is also observable with a coronagraph. Spectroscopic measurements indicate strong ionization in the corona and a plasma temperature in excess of , much hotter than the surface of the Sun, known as the photosphere. The word ''corona'' is , in turn derived . History In 1724, French-Italian astronomer Giacomo F. Maraldi recognized that the aura visible during a solar eclipse belongs to the Sun, not to the Moon. In 1809, Spanish astronomer José Joaquín de Ferrer coined the term 'corona'. Based in his own observations of the 1806 solar eclipse at Kinderhook (New York), de Ferrer also proposed that the corona was part of the Sun and not of the Moon. English astronomer Norman Lockyer identified the first element unknown on E ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Radio Astronomy
Radio astronomy is a subfield of astronomy that studies celestial objects at radio frequencies. The first detection of radio waves from an astronomical object was in 1933, when Karl Jansky at Bell Telephone Laboratories reported radiation coming from the Milky Way. Subsequent observations have identified a number of different sources of radio emission. These include stars and galaxies, as well as entirely new classes of objects, such as radio galaxies, quasars, pulsars, and masers. The discovery of the cosmic microwave background radiation, regarded as evidence for the Big Bang theory, was made through radio astronomy. Radio astronomy is conducted using large radio antennas referred to as radio telescopes, that are either used singularly, or with multiple linked telescopes utilizing the techniques of radio interferometry and aperture synthesis. The use of interferometry allows radio astronomy to achieve high angular resolution, as the resolving power of an interferometer is set ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Baikal Amur Mainline
Lake Baikal (, russian: Oзеро Байкал, Ozero Baykal ); mn, Байгал нуур, Baigal nuur) is a rift lake in Russia. It is situated in southern Siberia, between the Federal subjects of Russia, federal subjects of Irkutsk Oblast, Irkutsk Oblasts of Russia, Oblast to the northwest and the Republic of Buryatia to the southeast. With of water, Lake Baikal is the world's List of lakes by volume, largest freshwater lake by volume, containing 22–23% of the world's fresh surface water, more than all of the North American Great Lakes combined. It is also the world's List of lakes by depth, deepest lake, with a maximum depth of , and the world's ancient lake, oldest lake, at 25–30 million years. At —slightly larger than Belgium—Lake Baikal is the world's List of lakes by area, seventh-largest lake by surface area. It is among the world's clearest lakes. Lake Baikal is home to thousands of species of Plant, plants and animals, many of them endemic to the region. ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Construction Foreman
A construction foreman, construction forewoman, or construction foreperson is the worker or skilled tradesperson who is in charge of a construction crew. This role is generally assumed by a senior worker. Duties and functions Normally the foreman is a construction worker with many years of experience in a particular trade who is charged with organizing the overall construction of a particular project for a particular contractor. Typically the foreman is a person with specialist knowledge of a given trade who has moved into the position and is now focused on an overall management of his trade on the job site. He or she is responsible for providing proper documentation to his workers so they can proceed with tasks. Specifically, a foreman may train employees under his or her supervision, ensure appropriate use of equipment by employees, communicate progress on the project to a supervisor and maintain the employee schedule. Foremen may also arrange for materials to be at the constr ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Ukrainian Jewish
The history of the Jews in Ukraine dates back over a thousand years; Jewish communities have existed in the territory of Ukraine from the time of the Kievan Rus' (late 9th to mid-13th century). Some of the most important Jewish religious and cultural movements, from Hasidism to Zionism, rose either fully or to an extensive degree in the territory of modern Ukraine. According to the World Jewish Congress, the Jewish community in Ukraine constitutes the third-largest in Europe and the fifth-largest in the world. The actions of the Soviet government by 1927 led to a growing antisemitism in the area.Сергійчук, В. Український Крим К. 2001, p.156 Total civilian losses during World War II and the Reichskommissariat Ukraine, German occupation of Ukraine are estimated at seven million. More than one million Soviet Jews, of them around 225,000 in Belarus, were shot and killed by the Einsatzgruppen and by their many local Ukrainian supporters. Most of them wer ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Ukraine
Ukraine ( uk, Україна, Ukraïna, ) is a country in Eastern Europe. It is the second-largest European country after Russia, which it borders to the east and northeast. Ukraine covers approximately . Prior to the ongoing Russian invasion, it was the eighth-most populous country in Europe, with a population of around 41 million people. It is also bordered by Belarus to the north; by Poland, Slovakia, and Hungary to the west; and by Romania and Moldova to the southwest; with a coastline along the Black Sea and the Sea of Azov to the south and southeast. Kyiv is the nation's capital and largest city. Ukraine's state language is Ukrainian; Russian is also widely spoken, especially in the east and south. During the Middle Ages, Ukraine was the site of early Slavic expansion and the area later became a key centre of East Slavic culture under the state of Kievan Rus', which emerged in the 9th century. The state eventually disintegrated into rival regional po ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Soviet Academy Of Sciences
The Academy of Sciences of the Soviet Union was the highest scientific institution of the Soviet Union from 1925 to 1991, uniting the country's leading scientists, subordinated directly to the Council of Ministers of the Soviet Union (until 1946 – to the Council of People's Commissars of the Soviet Union). In 1991, by the decree of the President of the Russian Soviet Federative Socialist Republic, the Russian Academy of Sciences was established on the basis of the Academy of Sciences of the Soviet Union. History Creation of the Academy of Sciences of the Soviet Union The Academy of Sciences of the Soviet Union was formed by a resolution of the Central Executive Committee and the Council of People's Commissars of the Soviet Union dated July 27, 1925 on the basis of the Russian Academy of Sciences (before the February Revolution – the Imperial Saint Petersburg Academy of Sciences). In the first years of Soviet Russia, the Institute of the Academy of Sciences was perceived rath ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Phobos (moon)
Phobos (; astronomical naming conventions, systematic designation: ) is the innermost and larger of the two moons of Mars, natural satellites of Mars, the other being Deimos (moon), Deimos. The two moons were discovered in 1877 by American astronomer Asaph Hall. It is named after Phobos (mythology), Phobos, the Greek mythology, Greek god of fear and panic, who is the son of Ares (Mars) and twin brother of Deimos (deity), Deimos. Phobos is a small, irregularly shaped object with a mean radius of . Phobos orbits from the Martian surface, closer to its Primary (astronomy), primary body than any other known Natural satellite, planetary moon. It is so close that it orbits Mars much faster than Mars rotates, and completes an orbit in just 7 hours and 39 minutes. As a result, from the surface of Mars it appears to rise in the west, move across the sky in 4 hours and 15 minutes or less, and set in the east, twice each Mars sol, Martian day. Phobos is one of the least reflective bodie ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Mars
Mars is the fourth planet from the Sun and the second-smallest planet in the Solar System, only being larger than Mercury (planet), Mercury. In the English language, Mars is named for the Mars (mythology), Roman god of war. Mars is a terrestrial planet with a thin atmosphere (less than 1% that of Earth's), and has a crust primarily composed of elements similar to Earth's crust, as well as a core made of iron and nickel. Mars has surface features such as impact craters, valleys, dunes and polar ice caps. It has two small and irregularly shaped moons, Phobos (moon), Phobos and Deimos (moon), Deimos. Some of the most notable surface features on Mars include Olympus Mons, the largest volcano and List of tallest mountains in the Solar System, highest known mountain in the Solar System and Valles Marineris, one of the largest canyons in the Solar System. The North Polar Basin (Mars), Borealis basin in the Northern Hemisphere covers approximately 40% of the planet and may be a la ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
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