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Valentin Franke
Valentin Alfredovich Franke (; 16 February 1926 – 31 January 2025) was a Soviet and Russian theoretical physicist and academic. A Doctor of Sciences, he was professor of the High Energy & Elementary Particle at the Physics Department of Saint Petersburg State University. Background and early career V. A. Franke graduated from Kyiv Polytechnic Institute in 1949. After that he was distributed to a power plant in Amur Oblast, Russian Far East. In 1954 he externally graduated from Leningrad State University and then worked in Institute of Labor Protection in Leningrad. In 1962 V. A. Franke joined the physical faculty of LSU. He obtained his PhD under the supervision of Yury Novozhilov in 1965 and was habilitated in 1984. He was a professor of High Energy & Elementary Particle Physics Department until his retirement in 2020. Scientific and educational activity Franke worked in the fields of elementary particle physics, quantum mechanics and theory of gravitation. He wrote mor ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
USSR
The Union of Soviet Socialist Republics. (USSR), commonly known as the Soviet Union, was a List of former transcontinental countries#Since 1700, transcontinental country that spanned much of Eurasia from 1922 until Dissolution of the Soviet Union, it dissolved in 1991. During its existence, it was the list of countries and dependencies by area, largest country by area, extending across Time in Russia, eleven time zones and sharing Geography of the Soviet Union#Borders and neighbors, borders with twelve countries, and the List of countries and dependencies by population, third-most populous country. An overall successor to the Russian Empire, it was nominally organized as a federal union of Republics of the Soviet Union, national republics, the largest and most populous of which was the Russian SFSR. In practice, Government of the Soviet Union, its government and Economy of the Soviet Union, economy were Soviet-type economic planning, highly centralized. As a one-party state go ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Gravity
In physics, gravity (), also known as gravitation or a gravitational interaction, is a fundamental interaction, a mutual attraction between all massive particles. On Earth, gravity takes a slightly different meaning: the observed force between objects and the Earth. This force is dominated by the combined gravitational interactions of particles but also includes effect of the Earth's rotation. Gravity gives weight to physical objects and is essential to understanding the mechanisms responsible for surface water waves and lunar tides. Gravity also has many important biological functions, helping to guide the growth of plants through the process of gravitropism and influencing the circulation of fluids in multicellular organisms. The gravitational attraction between primordial hydrogen and clumps of dark matter in the early universe caused the hydrogen gas to coalesce, eventually condensing and fusing to form stars. At larger scales this results in galaxies and clust ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Russian Physicists
This list of Russian physicists includes the famous physicists from the Russian Empire, the Soviet Union and the Russian Federation. Alphabetical list __NOTOC__ A *Alexei Alexeyevich Abrikosov, Alexei Abrikosov, discovered how magnetic flux can penetrate a superconductor (the Abrikosov vortex), Nobel Prize winner *Franz Aepinus, related electricity and magnetism, proved the electric nature of pyroelectricity, explained electric polarization and electrostatic induction, invented Achromatic lens, achromatic microscope *Zhores Alferov, inventor of modern heterotransistor, Nobel Prize winner *Sergey Alekseenko, director of the Kutateladze Institute of Thermophysics, Global Energy Prize recipient *Artem Alikhanian, a prominent researcher of cosmic rays, inventor of wide-gap track spark chamber *Abram Alikhanov, nuclear physicist, a prominent researcher of cosmic rays, built the first nuclear reactors in the USSR, founder of Institute for Theoretical and Experimental Physics (ITEP) *S ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Russian People Of German Descent
Russian(s) may refer to: *Russians (), an ethnic group of the East Slavic peoples, primarily living in Russia and neighboring countries *A citizen of Russia *Russian language, the most widely spoken of the Slavic languages *''The Russians'', a book by Hedrick Smith *Russian (comics), fictional Marvel Comics supervillain from ''The Punisher'' series *Russian (solitaire), a card game * "Russians" (song), from the album ''The Dream of the Blue Turtles'' by Sting *"Russian", from the album ''Tubular Bells 2003'' by Mike Oldfield *"Russian", from the album '' '' by Caravan Palace *Nik Russian, the perpetrator of a con committed in 2002 See also * *Russia (other) *Rus (other) *Rossiysky (other) Rossiysky (masculine), Rossiyskaya (feminine), or Rossiyskoye (neuter), all meaning ''Russian Federation, Russian'', may refer to: *Rossiysky, Orenburg Oblast, a rural locality (a settlement) in Orenburg Oblast, Russia *Rossiysky, Rostov Oblast, a r ... * Russian River ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
2025 Deaths
The following notable deaths occurred in 2025. Names are reported under the date of death, in alphabetical order. A typical entry reports information in the following sequence: * Name, age, country of citizenship at birth, subsequent nationality (if applicable), what subject was noted for, cause of death (if known), and a reference. June 17 16 * Nikolay Krasnikov, 40, Russian ice speedway rider, traffic collision. *, 89, Chilean actress and actors' rights activist. * Nellai S. Muthu, 74, Indian novelist. * John Reid, 61, Scottish record producer, singer ( Nightcrawlers) and songwriter. (death announced on this date) * Julio Retamal Favereau, 91, Chilean historian, philosopher and academic, member of the Academia Chilena de la Historia. * Ron Taylor, 87, Canadian baseball player ( St. Louis Cardinals, New York Mets) and team physician (Toronto Blue Jays), four-time World Series champion. (death announced on this date) * Jan Tesař, 92, Czech historian, writer and dissident. ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
1926 Births
In Turkey, the year technically contained only 352 days. As Friday, December 18, 1926 ''(Julian Calendar)'' was followed by Saturday, January 1, 1927 '' (Gregorian Calendar)''. 13 days were dropped to make the switch. Turkey thus became the last country to officially adopt the Gregorian Calendar, which ended the 344-year calendrical switch around the world that took place in October, 1582 by virtue of the Papal Bull made by Pope Gregory XIII. Events January * January 3 – Theodoros Pangalos declares himself dictator in Greece. * January 8 **Ibn Saud is crowned ruler of the Kingdom of Hejaz. ** Crown Prince Nguyễn Phúc Vĩnh Thuy ascends the throne as Bảo Đại, the last monarch of the Nguyễn dynasty of the Kingdom of Vietnam. * January 16 – A British Broadcasting Company radio play by Ronald Knox about workers' revolution in London causes a panic among those who have not heard the preliminary announcement that it is a satire on broadcasting. * January 21 ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Spinor
In geometry and physics, spinors (pronounced "spinner" IPA ) are elements of a complex numbers, complex vector space that can be associated with Euclidean space. A spinor transforms linearly when the Euclidean space is subjected to a slight (infinitesimal transformation, infinitesimal) rotation, but unlike Euclidean vector, geometric vectors and tensors, a spinor transforms to its negative when the space rotates through 360° (see picture). It takes a rotation of 720° for a spinor to go back to its original state. This property characterizes spinors: spinors can be viewed as the "square roots" of vectors (although this is inaccurate and may be misleading; they are better viewed as "square roots" of Section (fiber bundle), sections of vector bundles – in the case of the exterior algebra bundle of the cotangent bundle, they thus become "square roots" of differential forms). It is also possible to associate a substantially similar notion of spinor to Minkowski space, in which cas ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Yuri Yappa
Yuri Andreevich Yappa () (September 21, 1927 – August 19, 1998) was a Soviet and Russian theoretical physicist. He is known for publications on particle physics, quantum field theory, General Relativity, philosophy of science, and for his graduate texts on classical electrodynamics and theory of spinors. Biography Yuri Yappa was born in Leningrad, USSR in the family of doctor Andrei Yappa (, ). In 1941, because of the German invasion in the Soviet Union and the Siege of Leningrad he had to interrupt his regular education and to start working. During the whole Siege of Leningrad he worked at the hospital where his father also worked. In 1944, he was awarded of medal "For the Defence of Leningrad". In parallel with the work in the hospital, he continued his self-education, so that in 1944 he passed exams for the entire course of the school and started to study at the Physical Faculty of the Saint Petersburg State University, Leningrad University. During the winter of 1944-1 ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
