Template:Selected anniversaries/November 21: Difference between revisions
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File:Jan Brożek.jpg|link=Jan Brożek (nonfiction)|1652: Mathematician, physician, and astronomer [[Jan Brożek (nonfiction)|Jan Brożek]] dies. He contributed to a greater knowledge of [[Nicolaus Copernicus (nonfiction)|Nicolaus Copernicus]]' theories and was his ardent supporter and early prospective biographer. | File:Jan Brożek.jpg|link=Jan Brożek (nonfiction)|1652: Mathematician, physician, and astronomer [[Jan Brożek (nonfiction)|Jan Brożek]] dies. He contributed to a greater knowledge of [[Nicolaus Copernicus (nonfiction)|Nicolaus Copernicus]]' theories and was his ardent supporter and early prospective biographer. | ||
||1773: Chemist Hippolyte-Victor Collet-Descotils born. He studied in the École des Mines de Paris, and was a student and friend of Louis Nicolas Vauquelin. He is best known for confirming the discovery of chromium by Vauquelin, and for independently discovering iridium in 1803. Pic. | ||1773: Chemist Hippolyte-Victor Collet-Descotils born. He studied in the École des Mines de Paris, and was a student and friend of Louis Nicolas Vauquelin. He is best known for confirming the discovery of chromium by Vauquelin, and for independently discovering iridium in 1803. Pic. | ||
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||2014: Paul von Ragué Schleyer dies ... chemist and academic ... made contributions in the area of synthesis of adamantane and other cage molecules by rearrangement mechanisms. He also discovered new types of hydrogen bonding. Schleyer also identified solvolysis mechanisms, including reactive intermediates. As a pioneer in the field of computational chemistry, Schleyer identified a number of new molecular structures, especially related to lithium chemistry and electron deficient systems. Pic search. | ||2014: Paul von Ragué Schleyer dies ... chemist and academic ... made contributions in the area of synthesis of adamantane and other cage molecules by rearrangement mechanisms. He also discovered new types of hydrogen bonding. Schleyer also identified solvolysis mechanisms, including reactive intermediates. As a pioneer in the field of computational chemistry, Schleyer identified a number of new molecular structures, especially related to lithium chemistry and electron deficient systems. Pic search. | ||
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Latest revision as of 09:15, 21 November 2023
1652: Mathematician, physician, and astronomer Jan Brożek dies. He contributed to a greater knowledge of Nicolaus Copernicus' theories and was his ardent supporter and early prospective biographer.
1905: Albert Einstein's paper that leads to the mass–energy equivalence formula, E = mc², is published in the journal Annalen der Physik.
1996: Theoretical physicist Mohammad Abdus Salam dies. He shared the 1979 Nobel Prize in Physics with Sheldon Glashow and Steven Weinberg for his contribution to the electroweak unification theory.