Stefan Mazurkiewicz (25 September 1888 – 19 June 1945) was a Polish mathematician who worked in mathematical analysis, topology, and probability. He was a student of Wacław Sierpiński and a member of the Polish Academy of Learning (PAU). His students included Karol Borsuk, Bronisław Knaster, Kazimierz Kuratowski, Stanisław Saks, and Antoni Zygmund. For a time Mazurkiewicz was a professor at the University of Paris; however, he spent most of his career as a professor at the University of Warsaw. The Hahn–Mazurkiewicz theorem, a basic result on curves prompted by the phenomenon of space-filling curves, is named for Mazurkiewicz and Hans Hahn. His 1935 paper Sur l'existence des continus indécomposables is generally considered the most elegant piece of work in point-set topology. During the Polish–Soviet War (1919–21), Mazurkiewicz as early as 1919 broke the most common Russian cipher for the Polish General Staff's cryptological agency. Thanks to this, orders issued by Soviet commander Mikhail Tukhachevsky's staff were known to Polish Army leaders. This contributed substantially, perhaps decisively, to Polish victory at the critical Battle of Warsaw and possibly to Poland's survival as an independent country. (Wikipedia).
Chopin Nocturne No. 20 perf. by Wladyslaw Szpilman - "The Pianist" - Original Recording
http://www.szpilman.net Wladyslaw Szpilman plays F. Chopin: Nocturne C sharp-minor Op. posth. Recorded in Warsaw at home in 1997. Cameraman Jaroslaw Mazur. Copyright 1998 by Andrzej Szpilman Wladyslaw Szpilman (Wladek) played this music in the last live broadcast for the Polish Radio on 2
From playlist Classical Music
Konstantin Mischaikow interviewed by Tomas Gedeon (October 26, 2022)
Konstantin Mischaikow interviewed by Tomas Gedeon (October 26, 2022) For more on the interview series, along with the advertisement posters, please see https://www.aatrn.net/interviews
From playlist AATRN Interviews
Bourbaki - 21/03/15 - 3/3 - Denis Charles CISINSKI
Catégories supérieures et théorie des topos
From playlist Bourbaki - 21 mars 2015
Interview at Cirm: Howard Masur
Howard Masur is an American mathematician who works on topology, geometry and combinatorial group theory. Masur was an invited speaker at the 1994 International Congress of Mathematicians in Zürich. and is a fellow of the American Mathematical Society. Along with Yair Minsky, Masur is one
From playlist English interviews - Interviews en anglais
Masterview by Jeff Barczewski - MWRC 2007
Help us caption & translate this video! http://amara.org/v/FGfy/
From playlist MWRC 2007
How Impossible Meat is Actually Made
So what is Impossible Meat actually made of? When it comes to creating vegetarian meat substitutes, flavor is only one hurdle—smell and texture are also major factors, and scientists have been making breakthroughs on creating a convincing meatless meat experience. For this episode of Sci
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Murat Erdemsel & Sigrid Van Tilbeurgh - Vals
From playlist Tango
Episode 13: Digging Deeper with Michael Pyrcz
Episode 13: Digging Deeper with Michael Pyrcz, Associate Professor, The University of Texas at Austin, and 2019-2020 AAPG-AAPG Foundation Distinguished Lecturer. AAPG Energy Insights podcast features people who are defining, influencing and leading today's world of geosciences. Listen to
From playlist Random Talks
Remembering Częstochowa, Poland
Seven survivors from Częstochowa, Poland describe their lives before the war; German invasion; ghettoization; mass killings; deportations; slave labor in German factories established in Częstochowa; liberation by Soviet troops, and their losses. This edited program was prepared for an exhi
From playlist Fortunoff Video Archive for Holocaust Testimonies
Inferences: Entailment - Semantics in Linguistics
In this video on #semantics in #linguistics, we talk about our first type of inference: entailment, and do a few examples with the contradiction test. Join this channel to get access to perks: https://www.youtube.com/channel/UCGYSfZbPp3BiAFs531PBY7g/join Instagram: http://instagram.com/T
From playlist Semantics in Linguistics
3 Ways We Could Transform the Future of Food
This video was sponsored by Google Science Fair. Enter the 2018 Google Science Fair at https://bit.ly/2DtDi05 and check out their YouTube page at https://www.youtube.com/user/GoogleScienceFair/featured. See official rules for full details: https://bit.ly/2MNOggg As the population grows, t
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Is The Mirror Test Just a Reflection of Human Nature?
The mirror test is supposed to be a way to figure out when an animal is self-aware, but there might be only one particular animal this test works well on: humans. Check out the episode about fish intelligence over on the main SciShow channel: https://youtu.be/Ut6B5PVJ3hE Hosted by: Brit
From playlist SciShow Psych
Serbian & Croatian Monarchs Family Tree
Buy the chart: https://usefulcharts.com/products/european-royal-family-tree-north-east Watch Serbia & Croatia Compared by Mr. Beat: https://www.youtube.com/watch?v=D7jOK7WGr6Y CREDITS: Chart: Matt Baker Script/Narration: @JackRackam Intro animation: @AlMuqaddimahYT Intro music: "Lord
From playlist Royal Family Trees
Time to Reimagine Sustainable Development?
Time to reimagine sustainable development? On the eve of the UN General Assembly" Event description: The 76th session of the United Nations General Assembly opened on Tuesday, September 14, for leaders from around the world to discuss progress on the Sustainable Development Goals. Adopted
From playlist The Yale Development Dialogues
Previously, the law formulated by Ernst Abbe in 1873 was regarded as the absolute lower limit. Objects lying closer to each other than 200 millionths of a millimetre, i.e. about one two hundredth of a hair's breadth, can no longer be distinguished from one another. The STED (Stimulated Emi
From playlist Most popular videos
8ECM EMS Prize Lecture: Joaquim Serra
From playlist 8ECM EMS Prize Lectures
Seminar In the Analysis and Methods of PDE (SIAM PDE): Alessio Figalli
Date: December 3, 2020 Speaker: Alessio Figalli, ETH Zurich Title: Generic regularity in obstacle problems Abstract: The classical obstacle problem consists of finding the equilibrium position of an elastic membrane whose boundary is held fixed and constrained to lie above a given obsta
From playlist Seminar In the Analysis and Methods of PDE (SIAM PDE)