Лекторий «Политеха»: Владимир Сурдин «Путешествие из Калуги на Луну»

New channel Политехнический музей: title sample judged 'whole' (Nearly all long uploads are substantive expert lectures and museum educational talks on science, history, and culture, f); 1 of 3 sampled transcripts showed teaching, 0 not; every title checked strictly; oEmbed verified.