BOHR'S ATOM (The story of the atom part 5)

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FÍSICA Prof. Daniel

Published on Apr 9, 2021
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What is the relationship between football, beer and physics? Bohr was born in Copenhagen in 1885, the son of a brilliant professor. University student and a Danish-Jewish woman linked to banks. Bohr always liked football and joined the squad of the team: Akademisk Boldklub as goalkeeper in 1903, at the age of 17, but did not play many games as a starter. Although his talent was recognized by his teammates, the physique had trouble concentrating in games. Precisely what ended his brief spell on the pitch, two years later. His brother Harold Bohr became a professional player and played for the Danish national team. Bohr graduated in physics at the University of Copenhagen and in 1911 traveled to England (funded by the Carsberg foundation, which at the time supported Danish scientists and artists). At the time, it was the place where most of the theoretical work on the structure of atoms and molecules was being done. There he met JJ Thomson of the Cavendish Laboratory and Trinity College, Cambridge. Bohr was funded numerous times by the Calsberg Foundation, with resources for research, investment in equipment and even salary supplements. Bohr received an invitation from Rutherford to conduct postdoctoral work at Victoria University of Manchester. In 1913, in a brilliant move of intuition, Bohr solved Rutherford's atom problem by proposing a new atomic model. For this work he received the Nobel Prize in 1922. When Bohr was awarded the Nobel Prize in 1922, despite already being a notable scientist in the world and especially in Denmark, he became the center of attention in the international scientific community. In 1923 he received another invitation to go and work outside Denmark, this time with his PhD advisor. This invitation was one of the few that shook him, who had deep roots in Denmark. However, the Carlsberg Foundation played a decisive role in allowing Bohr to remain there: it created a special position for him as a “free scientist”, and supplemented his salary, which meant that he remained in Denmark. The Carlsberg Foundation maintained a house to house prominent scientists, where the chosen one could live freely for the period of his life. It was quite a recognition! This house was originally owned by the founder of Carlsberg and was donated to the Foundation for this purpose only. When the last resident of the house died, it was offered to Bohr, and he took up residence there for more than 30 years. Here the legend arises. The house is close to the brewery, where supposedly a connection goes directly to a beer tap, which provides infinite beer to its resident. This would truly be such a gift and honor for a great scientist, if it weren't for the improbable content behind this idea. In fact, there are publications from renowned media outlets saying that it was true, and that in addition, it was given to her for winning the Nobel Prize. The truth is that it was lent, not given. And partially because he won the Nobel, but not entirely: he achieved notoriety in Danish society in the areas of science, arts and literature (criteria for resident selection by the Royal Danish Academy of Science and Letters). In 1943, when the Danish government was deposed by the Nazis, Bohr decided to flee Denmark so as not to be forced to do research for the Nazi government (he knew there was a Nazi nuclear program...see the video) Once the plan has been devised, all that's left is to go Wait until dark to put it into practice. It is the night of September 23, 1943. In the city of Copenhagen, once again the curfew brings forced silence. But the Danish Resistance - one of the best organized in Europe - does not give in. It continues its tireless and dangerous mission to help people seeking to leave the country occupied by German forces. That night, a small fishing boat takes on board an exceptional stowaway, whose stay in Denmark could be incalculably advantageous for the Germans. Niels Bohr, one of the greatest European scientists in nuclear matters, is taken to Sweden, where he boards a plane headed for England. A year after taking refuge in England, Bohr moved to the United States, taking up the position of consultant at the Los Alamos atomic energy laboratory, where scientists from all over the world channeled all their efforts into building the atomic bomb. Understanding the gravity of the situation and the danger that this bomb could pose to humanity, Bohr addressed Churchill and Roosevelt, in an appeal to their responsibility as heads of state, to prevent the construction of the bomb. #historiadoatomo #neilsbohr #atomodebohr

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