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Wyświetlanie 1-4 z 4
Tytuł:
Kontakty Marii Skłodowskiej-Curie ze środowiskiem krakowskim
Relations of Marie Skłodowska -Curie with Krakow scientific circles
Autorzy:
RAFALSKA-ŁASOCHA, Alicja
Powiązania:
https://bibliotekanauki.pl/articles/520656.pdf
Data publikacji:
2013
Wydawca:
Polska Akademia Umiejętności
Opis:
Marie Skłodowska (1867–1934) spent her childhood and youth in Poland. During and after her studies she lived and worked in France. Many circumstances combined, to give her two homelands. Her discoveries for the benefi t of mankind, however, made her a citizen of the whole world. The aim of this paper was to underline relations of Marie Skłodowska -Curie with Poland – especially with the scientific circles in Krakow. Marie was born in Warsaw, the fi fth child of the patriotic Skłodowski family. She graduated with honors and received a gold medal from the state gymnasium in Warsaw at the age of 15. She wanted to continue her education, but due to imprudent investments by her father the Skłodowskis experienced fi nancial trouble, so Maria began giving private lessons, and next accepted a better -paid post of a governess in a village far away from home. In Autobiography she wrote: Since my duties with my pupils did not take up all my time, I organized a small class for the children of the village who could not be educated under the Russian government. […] Even this innocent work presented danger, as all initiative of this kind was forbidden by the government and might bring imprisonment or deportation to Siberia. After more than three years’ work as a governess, she came back to Warsaw, gave private lessons and saw to her own education. In the Laboratory of Industry and Agriculture Museum she mastered the fundamentals of chemical analysis and became acquainted with scientific research work. In November 1891, at the age of 24, she left for Paris. On 3 November 1891 she began studies at the Faculty of Mathematics and Natural Sciences at the Sorbonne. Despite some gaps in her knowledge, she was able to pass all her examinations and graduate in the fi rst rank as “licenciée en sciences physiques” in 1893, and in the second rank as “licenciée en sciences mathématiques” in 1894. Driven by the sense of duty, which she had learned at home (she was convinced that she should work as a teacher in her homeland), Marie went to Krakow and tried to find a job in the physics laboratories of the Jagiellonian University. Scientists from Krakow worked with the best laboratories in London, GÖttingen and Paris. At that time, however, women were not allowed even to study at the Jagiellonian University. In the academic year 1894/1995 only three women (pharmacists) were allowed to att end university lectures. After having visited Krakow Marie realized that there was no suitable position for her at Polish Universities. Professor August Witkowski, who wanted to help her, was not even able to off er her the position of assistant to his Chair of Physics at the Jagiellonian University. “She would have had to be excluded from academic life, without which she would not have had the opportunity to apply her knowledge and skills and satisfy her justifi able ambitions. This is why she decided to choose science and Pierre Curie.” In autumn 1894 Marie came back to Paris, where in 1895 she married Pierre Curie – a French physicist. At the end of 1897 Marie became interested in the research of Henri Becquerel, who had noticed that uranium salts emitt ed special rays which, as opposed to common light rays, could penetrate through black paper and discharge an electroscope. Instead of an electroscope she used newly elaborated electrometer. Laborious work began: hundreds of measurements, chemical experiments and new results. While examining rays of uranium ores, she observed an interesting phenomenon: the radiation’s intensity was not always proportional to the content of uranium in the ore. After a few months Pierre joined Marie and the Curies managed to separate from pitchblende a substance accompanying bismuth which displayed unique chemical features and was much more active than uranium. In July 1898 they announced the discovery of a new element, which they named POLONIUM in honor of Marie’s homeland. She hoped that naming the new element after her native country would bring world att ention to its lost independence. In December 1898, they announced the discovery of another radioactive element – radium. All their work was carried out in extremely poor conditions, with no hope of improvement. In 1900 a big scientifi c conference was organized in Krakow – 9th Congress of Polish Physicians and Naturalists. Some Polish scientists working abroad were invited. Among them was also Marie Curie from Paris. Even though she was not able to come, she sent her contribution and asked prof. August Witkowski to read her lecture in the chemical section of the Congress. She also sent few samples containing radium compound to make some demonstrations. After the Congress Maria wished, these samples were given to the Chair of Physics at the Jagiellonian University. In 1903, Marie defended her doctoral thesis. A copy of her doctoral dissertation with inscription writt en by Marie Curie for prof. Witkowski was among the books which belonged to him. In the same year Maria, together with Pierre Curie and Henri Becquerel, received the Nobel Prize in physics. In 1904 her thesis appeared on the market in Polish translation. On 29 June 1908 professors Witkowski and Natanson submitt ed to the Academy of Arts and Sciences in Krakow a request to elect Marie Curie as an active, foreign member of the Academy. The election took place on 21 May, 1909, and after its approval by the higher instances, the authorities of the Academy sent to Marie a lett er with this information. She was the fi rst woman among the members of the Academy of Arts and Sciences in Krakow. Until 1931 she was the only woman in this academic society. After the celebrations connected with the 25 anniversary of discovery of radium and polonium in Paris, senate of the Jagiellonian University awarded Marie Curie with two doctorates honoris causa: one in philosophy, another one in medicine. Marie was not able to come to Krakow, so prof. Kazimierz Morawski took these diplomas and handed them to Marie in Paris. In December 1924 Marie Curie wrote letters to the deans of Faculty of Philosophy and Faculty of Medicine, and to the rector of the Jagiellonian University with gratitude for these honors. The only scientist from Krakow who visited and worked for a short time in the Curie laboratory in Paris was a botanist Kazimierz Stefan Rouppert (1885–1963). He worked there for a few weeks in 1926. The results were published in a paper entitled Sur l’action du rayonnement des corps radioactifs sur les perlules végétales. Some of scientists in Krakow were interested in investigation of radium or in application of compounds of this element in medicine. They contacted Marie Curie, wrote to her and received from her lett ers. Among them were: Tadeusz Estreicher, Karol Olszewski, Walery Jaworski, Marian Smoluchowski, Władysław Natanson, Leon Marchlewski, Antoni Hoborski, Mieczysław Jeżewski, Odo Bujwid, Aleksander Rosner, Henryk Wachtel, authorities of Jagiellonian University and Academy of Arts and Sciences. Marie Skłodowska -Curie was and still is, a worldwide hero. Matt ers of science were always of great value for this modest personality. She was also a great Pole, who took care of the development and prosperity of her homeland. When she was asked to write a few words on the occasion of the tenth anniversary of Poland’s regained independence, she wrote: – to develop scientific laboratories, which Pasteur called “sacred shrines of mankind,” – to take care of those who work for science, craving knowledge, in order to obtain workers for the future, – to create conditions so that innate talents and precious gifts might be realized and serve the idea – means to lead the society along the path of development of power, both spiritual and material.
Źródło:
Prace Komisji Historii Nauki PAU; 2013, 12; 33-66
1731-6715
Pojawia się w:
Prace Komisji Historii Nauki PAU
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Obchody 100. rocznicy śmierci Karola Stanisława Olszewskiego (1846–1915)
Karol Olszewski’s 100th anniversary of death and his contribution to cryogenics
Autorzy:
RAFALSKA-ŁASOCHA, Alicja
Powiązania:
https://bibliotekanauki.pl/articles/520690.pdf
Data publikacji:
2015
Wydawca:
Polska Akademia Umiejętności
Tematy:
Karol Olszewski
kriogenika
historia nauki
cryogenics
history of science
Opis:
Artykuł poświęcony jest znakomitemu polskiemu uczonemu prof. Karolowi Olszewskiemu, który urodził się i żył, gdy Polska nie istniała na mapie świata, a nauka polska rozwijana była głównie na uniwersytetach w Krakowie, we Lwowie i kilku innych uczelniach na zachodzie Europy. W 1883 roku Karol Olszewski i Zygmunt Wróblewski po raz pierwszy skroplili tlen, azot i tlenek węgla w stanie statycznym. Olszewski skroplił również wodór w stanie dynamicznym (1884). W styczniu 1896 roku, po przeczytaniu pracy W. Roentgena o nowym rodzaju promieniowania, profesor Olszewski zbudował zestaw i otrzymał w Krakowie promienie X. Wydarzenie to dało początek polskiej radiologii. Karol Olszewski zmarł 25 marca 1915 roku. W marcu 2015 roku, w 100‑ lecie śmierci uczonego, Wydział Chemii UJ był inicjatorem i organizatorem uroczystości upamiętniających osobę i naukowe osiągnięcia profesora Karola Olszewskiego.
The article briefly presents the scientific achievements of Karol Olszewski (1846– 1915), who was born when Poland did not exist on the map of Europe and Polish science was developed mainly in Krakow, Lviv and at some European Universities. In 1883 Karol Olszewski and Zygmunt Wróblewski were the first in the world to liquefy oxygen, nitrogen and carbon oxide from the atmosphere in a stable state. In 1884 Olszewski was also the first person who liquefied hydrogen in a dynamic state, achieving a record low temperature of 225 °C (48 K). In 1895 he succeeded in liquefying argon. In January 1896 Olszewski replicated the Roentgen’s set‑up for obtaining X‑ rays and successfully obtained this newly‑discovered radiation for the first time in Krakow, initiating the foundation of the university’s department of radiology. Olszewski died on 25 March 1915. In March 2015 the Faculty of Chemistry of the Jagiellonian University organized a special celebration to commemorate the life and achievements of Karol Olszewski.
Źródło:
Prace Komisji Historii Nauki PAU; 2015, 14; 334-344
1731-6715
Pojawia się w:
Prace Komisji Historii Nauki PAU
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
About Marie Skłodowska-Curie on the occasion of her 150th anniversary of the birth
Autorzy:
Rafalska-Łasocha, Alicja
Powiązania:
https://bibliotekanauki.pl/articles/783320.pdf
Data publikacji:
2018
Wydawca:
Polska Akademia Umiejętności
Tematy:
Marie Skłodowska-Curie
radioactivity
discovery of polonium and radium
150th anniversary of Marie Skłodowska-Curie’s birth
Maria Skłodowska-Curie
promieniotwórczość
odkrycie polonu i radu
jubileusz 150. rocznicy urodzin Marii Skłodowskiej-Curie
Opis:
The article regards the celebrations of the 150th anniversary of the birth of Marie Sklodowska-Curie − a discoverer of polonium and radium, twice decorated with a Noble Prize, the first woman professor of the Sorbonne, who in the ranking organized by the periodical New Scientist was considered the most outstanding and inspiring scientist of all time.In her youth, many universities (among them also Polish) were closed to women, so Marie Skłodowska studied at the Sorbonne in Paris. When, after her studies, she was not accepted as an assistant at the Jagiellonian University in Kraków (Poland), Marie Skłodowska came back to Paris, married Pierre Curie and started her scientific work in his humble lab.The scientific achievements of Maria Skłodowska-Curie were a breakthrough in the history of exact sciences and the basis for the application of new methods in oncological therapies. For modern scientists she is a timeless source of inspiration and is admired not only for her scientific achievements but also for her courage in breaking barriers and helping to redefine the role of women in society and science.On November 7, 2017, we celebrated the 150th anniversary of Marie Skłodowska-Curie’s birth. In Poland and abroad many events were organized during the whole year of 2017 to commemorate her life and achievements. Some of them, as well as some aspects of Skłodowska-Curie’s life and work are described in this paper.
Artykuł poświęcony jest obchodom 150. rocznicy urodzin dwukrotnej laureatki Nagrody Nobla, odkrywczyni polonu i radu, pierwszej kobiecie profesor Sorbony, która w rankingu zorganizowanym przez periodyk New Scientist uznana została za najwybitniejszą i najbardziej inspirującą uczoną wszechczasów.W młodości Marii wiele uniwersytetów (w tym także polskie) było zamkniętych dla kobiet, więc Skłodowska studiowała na Sorbonie w Paryżu. Kiedy po studiach nie została przyjęta jako asystentka na Uniwersytecie Jagiellońskim w Krakowie, wróciła do Paryża, poślubiła Piotra Curie i rozpoczęła pracę naukową w jego skromnym laboratorium.Osiągnięcia naukowe Marii Skłodowskiej-Curie były przełomem w historii nauk ścisłych i podstawą do zastosowania nowych metod w terapiach onkologicznych. Dla obecnych naukowców jest ponadczasowym źródłem inspiracji i jest podziwiana nie tylko za osiągnięcia naukowe, ale także za odwagę w przełamywaniu barier i pomoc w redefiniowaniu roli kobiet w społeczeństwie i nauce.W dniu 7 listopada 2017 r. świętowaliśmy 150. rocznicę urodzin Marii Skłodowskiej-Curie. W Polsce i za granicą przez cały 2017 rok zorganizowano wiele wydarzeń, upamiętniających jej życie i osiągnięcia. Niektóre z nich, a także niektóre aspekty życia i pracy Skłodowskiej-Curie zostały opisane w niniejszym artykule.
Źródło:
Studia Historiae Scientiarum; 2018, 17
2451-3202
Pojawia się w:
Studia Historiae Scientiarum
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Rentgenowska dyfraktometria proszkowa w badaniach zabytkowych obiektów. Nowe możliwości badawcze na Wydziale Chemii UJ
Autorzy:
Grzesiak, Marta
Oszajca, Marcin
Rafalska-Łasocha, Alicja
Łasocha, Wiesław
Powiązania:
https://bibliotekanauki.pl/articles/636614.pdf
Data publikacji:
2011
Wydawca:
Uniwersytet Jagielloński. Wydawnictwo Uniwersytetu Jagiellońskiego
Tematy:
X-ray powder diffractometry
chemical analysis
Resurrected Christ from Bodzentyn
investigations of historic-objects
Opis:
Powder diffraction techniques in studies of historical objects can be applied to the investigations of such substances as pigments, corrosion products of metals and other crystalline artistic materials. Unlike techniques such as X-ray fluorescence (XRF) and other methods of chemical analysis that provide information on elemental composition, XRPD enables the identification and differentiation of materials with similar or even identical chemical compositions. Shell and limestone, are chemically the same (calcium carbonate), but the atoms are arranged differently in each of them. It would be difficult to tell these materials apart using elemental analysis. Some techniques, however, such as X-ray diffraction (XRD), provide information on the way atoms are arranged in a given sample and thanks to this knowledge it is possible to detect which sample contain limestone an which contain shell. As other examples one can mention several pigments; e.g., two types of lead-tin yellow, Pb2SnO4 and PbSnO3 polymorphic modifications of TiO2, or different kinds of verdigris. Precise information on the substance used in an artwork is sometimes of great importance in the dating and authentication a work of art, and in studying the origin of historical materials and in characterization of the artist’s workshop. Moreover, a description of secondary changes in the phase composition enables the study of the signs and causes of damage produced by environmental conditions and is vital to the proper conservation of the object, whether through preventive measures or restorative treatment. X-ray diffraction analysis requires a very small sample (in micro-diffraction measurements, often much less than the size of a pinhead). Moreover an identification of the investigated materials can be performed with the use of already present reference powder diffraction data (PDF Files), which are prepared and distributed by the International Centre for Diffraction Data (Pennsylvania, USA). In this paper the results of the investigations of a green paint in the Gothic panel painting Resurrected Christ from Bodzentyn (Chrystus Zmartwychwstały z Bodzentyna are presented as an example of application of micro-diffraction analysis to study the pigments. Obtained results allowed identification of lead tin yellow type I (Pb2SnO4, PDF[24-0589]), hydrocerussite ((PbCO3)2Pb(OH)2, PDF[13-131]), malachite (Cu(OH)2CuCO3, PDF[56-0001]) and cynabar (HgS, PDF [42-1408]).
Źródło:
Opuscula Musealia; 2011, 19; 25-36
0239-9989
2084-3852
Pojawia się w:
Opuscula Musealia
Dostawca treści:
Biblioteka Nauki
Artykuł
    Wyświetlanie 1-4 z 4

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