Dr. Stefan Banach

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  • เผยแพร่เมื่อ 27 ม.ค. 2025

ความคิดเห็น • 5

  • @mariojsworld
    @mariojsworld 6 หลายเดือนก่อน

    Nicely presented video.

    • @JanPBtest
      @JanPBtest  6 หลายเดือนก่อน

      Thanks. This is one of the oldest cemeteries in Europe, lots of famous Polish people there (including the Baczewski family, the one of the vodka fame, they moved their operations to Vienna after WWII). BTW, I'm in Switzerland too! Moved last year.

  • @ronald3836
    @ronald3836 3 หลายเดือนก่อน

    Now I know that you did not zoom in on pi^2/6 = sum 1/n^2 on the Berlin wall by accident ;-)

    • @JanPBtest
      @JanPBtest  3 หลายเดือนก่อน +1

      Haha, yes! But it was a bit unexpected. The day before I filmed Banach's grave I went to the Szkocka Cafe where the Polish mathematicians in Lviv in the 1930s would congregate and think about problems. They kept a notebook at that cafe and a facsimile copy of it is there today (the cafe still exists). So I ordered a cappuccino and a cheesecake (never mind Putin and air raid sirens almost every day, to which nobody ever paid any attention BTW) and started reading. Fascinating, with several foreign guests writing in their questions: von Neumann, Fréchet, others I forget, also some locals who later became famous in America: Ulam, Eilenberg, etc. There were usually prizes promised to whoever solves the given problem. Neumann's entry was something about measure theory and he first defines some "mass" function in those terms. And below he added: "Preis: eine Flasche Whisky vom Masse > 0" 🙂

  • @Mr.Westery
    @Mr.Westery ปีที่แล้ว

    Hey, buddy! If you're into true crime documentaries, don't miss my latest real crime documentary video! Your thoughts are essential to me, so I'm looking forward to your feedback. Take care of your health, and I hope you find the time to watch and support. Thank you; every criticism, positive or negative, is valued.