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Encyclopedia > Mário Schenberg

Mário Schenberg, (b. July 2, 1914, Recife (Pernambuco); d. November 10, 1990, São Paulo), var. Mário Schönberg, Mario Schonberg), was a Brazilian electrical engineer, physicist, art critic and writer. July 2 is the 183rd day of the year (184th in leap years) in the Gregorian Calendar, with 182 days remaining. ... 1914 is a common year starting on Thursday. ... Recife (population 1. ... Pernambuco is a state of Brazil, located in the Brazilian Northeast. ... November 10 is the 314th day of the year (315th in leap years) in the Gregorian Calendar, with 51 days remaining. ... 1990 is a common year starting on Monday of the Gregorian calendar. ... Sao Paulo and São Paulo (city) redirect here. ... An engineers degree is an academic degree which is intermediate in rank between a masters degree and a doctorate; it is occasionally to be encountered in the United States in technical fields. ... The word physicist should not be confused with physician, which means medical doctor. ... An art critic is normally a person who have a speciality in giving reviews mainly of the types of fine art you will find on display. Typically the art critic will go to an art exhibition where works of art are displayed in the traditional way in localities especially made... Though anyone who creates a written work may be called a writer, the term is usually reserved for those who write creatively or professionally, or those who have written in many different forms. ...

The Urca process

Widely regarded as Brazil's most important theoretical physicist, Schenberg is best remembered for his contributions to astrophysics, particularly the theory of nuclear processes in the formation of supernova stars. He gave the name to the so-called Urca process, a cycle of nuclear reactions in which a nucleus loses energy by absorbing an electron and then re-emitting a beta particle plus a neutrino-antineutrino pair, leading to the loss of internal supporting pressure and consequent collapse and explosion in the form of a supernova. Urca is the name of a casino in Rio de Janeiro, and it was used to name the process by George Gamow (1904-1968), because Schenberg remarked to him that “the energy disappears in the nucleus of the supernova as quickly as the money disappeared at that roulette table.” Theoretical physics attempts to understand the world by making a model of reality, used for rationalizing, explaining, predicting physical phenomena through a physical theory. There are three types of theories in physics; mainstream theories, proposed theories and fringe theories. ... Spiral Galaxy ESO 269-57 Astrophysics is the branch of astronomy that deals with the physics of the universe, including the physical properties ( luminosity, density, temperature and chemical composition) of astronomical objects such as stars, galaxies, and the interstellar medium, as well as their interactions. ... Remnant of Keplers Supernova, SN 1604. ... Properties The electron (sometimes called negatron; commonly represented as e−) is a subatomic particle. ... Beta particles are high-energy electrons emitted by certain types of radioactive nuclei such as potassium-40. ... The neutrino is an elementary particle. ... The Trump Taj Mahal in Atlantic City, New Jersey A casino is a building that accommodates gambling. ... George Gamow, born Georgiy Antonovich Gamow (Георгий Антонович Гамов) (March 4, 1904 – August 19, 1968) was a Ukrainian born physicist and cosmologist. ...

Together with Indian physicist Subrahmanyan Chandrasekhar (1910-1995), Schenberg discovered and published in 1942 the so-called Schönberg-Chandrasekhar limit, which is the maximum mass of the core of a star that can support the overlying layers against gravitational collapse, once the core hydrogen is exhausted. Subrahmanyan Chandrasekhar (October 19, 1910 – August 21, 1995) was an Indian-American physicist, astrophysicist and mathematician. ... 1942 was a common year starting on Thursday (link will take you to calendar). ... Gravitational collapse in astronomy is the sudden inward fall of a massive body under the influence of the force of gravity. ... General Name, Symbol, Number Hydrogen, H, 1 Chemical series nonmetals Group, Period, Block 1 (IA), 1 , s Density, Hardness 0. ...



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