Word of the day
- tenacious November 21, 2024Merriam-Webster's Word of the Day for November 21, 2024 is: tenacious • \tuh-NAY-shus\ • adjective Something described as tenacious cannot easily be stopped or pulled part; in other words, it is firm or strong. Tenacious can also describe something—such as a myth—that continues or persists for a long time, or someone who is determined to […]Merriam-Webster
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On This Day
1897 – British-Italian engineer Guglielmo Marconi obtains a patent for radio in London.
Guglielmo Marconi, 1st Marquis of Marconi (/mɑːrˈkoʊni/;[1] Italian: [ɡuʎˈʎɛlmo marˈkoːni]; 25 April 1874 – 20 July 1937) was an Italian[2][3][4][5] inventor and electrical engineer known for his pioneering work on long-distance radio transmission[6] and for his development of Marconi’s law and a radio telegraph system. He is credited as the inventor of radio,[7] and he shared the 1909 Nobel Prize in Physics with Karl Ferdinand Braun “in recognition of their contributions to the development of wireless telegraphy”.[8][9][10]
Marconi was also an entrepreneur, businessman, and founder of The Wireless Telegraph & Signal Company in the United Kingdom in 1897 (which became the Marconi Company). He succeeded in making an engineering and commercial success of radio by innovating and building on the work of previous experimenters and physicists.[11][12] In 1929, Marconi was ennobled as a Marchese (marquis) by King Victor Emmanuel III of Italy and, in 1931, he set up the Vatican Radio for Pope Pius XI.
Born On This Day
1914 – Mário Schenberg, Brazilian physicist and engineer (d. 1990)
Mário Schenberg (var. Mário Schönberg, Mario Schonberg, Mário Schoenberg; July 2, 1914 – November 10, 1990) was a Jewish Brazilian electrical engineer, physicist, art critic and writer.
Scientific work
The Urca process
Widely regarded as one of Brazil’s most important theoretical physicists, Schenberg is best remembered for his contributions to astrophysics, particularly the theory of nuclear processes in the formation of supernova stars. He provided the inspiration for the name of 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. George Gamow (1904–1968) was inspired to name the process Urca after the name of a casino in Rio de Janeiro, when Schenberg remarked to him that “the energy disappears in the nucleus of the supernova as quickly as the money disappeared at that roulette table”.
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wikimedia
- Wikimedia Commons picture of the day for November 22 November 22, 2024Picture of the day Sanderling (Calidris alba) looking for food on the beach of Westkapelle, Netherlands.
- Wikimedia Commons picture of the day for November 21 November 21, 2024Picture of the day This technical illustration shows early hot air balloon designs. The first untethered manned hot air balloon flight was performed by Jean-François Pilâtre de Rozier and François Laurent d'Arlandes on this day in 1783.
Recipes
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