- Karol Olszewski
Infobox Person
name = Karol Olszewski
image_size = 200px
caption = Karol Olszewski
birth_name = Karol Stanisław Olszewski
birth_date = birth date|1846|1|29
birth_place =Broniszów
death_date = death date and age|1915|3|24|1846|1|29
death_place =Krakau ,Austrian-Hungarian Empire
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nationality = Polish
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known_for = First to liquefy oxygen and nitrogen. First Polish X-ray Photographs
education =Jagiellonian University in KrakauHeidelberg University PhD
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occupation = Scientist
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title = Professor
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footnotes =Karol Stanisław Olszewski (b.
January 29 ,1846 inBroniszów -March 24 ,1915 inKrakau ,Austrian-Hungarian Empire (since 1919Kraków , Poland)) was an Austrian-born Polishchemist ,mathematician andphysicist .Olszewski studied at the
Jagiellonian University in Kraków in the Departments of Mathematics and Physics, and of Chemistry and Biology. He carried out his first experiments using a personally improved compressor, condensing and compressingcarbon dioxide . He defended his doctoral dissertation atUniversity of Heidelberg , after which he returned to Krakau where he obtained the title of extraordinary professor (associate professor ) [cite web|url=http://www.poland.gov.pl/Karol,Olszewski,and,Zygmunt,Wroblewski:,condensation,of,oxygen,and,nitrogen,1987.html |title= Polish Ministry of Culture, Science and Media website| accessdate=2008-03-05] .In 1883,
Zygmunt Wróblewski and Karol Olszewski were the first toliquefy oxygen ,nitrogen andcarbon dioxide from the atmosphere in a stable state (not, as had been the case up to then, in a dynamic state in the transitional form as vapor).In 1896, on hearing of
Roentgen 's work onx-rays , Olszewski replicated them within a few days in early February initiating the department of Radiology at the university [cite web|url=http://www.cm-uj.krakow.pl/radiologia/historia_en.html |title = Krakow Chair of Radiology History |accessdate=2008-03-05] [cite web|url=http://www.polradiologia.org/english/history/histor3.html |title= History of Polish Radiology |author =Stanisław Leszczyński and Andrzej Urbanik| accessdate=2008-03-05] .References
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