Смотрите видео "MIT Physics II: Electricity and Magnetism (8.02) - Walter Lewin - Lecture 26 - Traveling Waves, Standing Waves, Musical Instruments" в ОК. Плеер Видео

51:36

MIT Physics II: Electricity and Magnetism (8.02) - Walter Lewin - Lecture 26 - Traveling Waves, Standing Waves, Musical Instruments