What are electromagnetic waves and how do they propagate?
How do the different wavebands differ?
0:00 - preface
0:38 - Electromagnetic waves
1:50 - polarization
2:51 - Electromagnetic spectrum
3:51 - wavelength
6:04 - expansion
6:51 - long waves
8:23 - medium waves
9:31 - shortwave
11:57 - ultra short waves
31 май 2024