Slide from English
electromagnetic telegraphmorse coderadioa. s. popovp. l. schilling
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Tavsif
The first electromagnetic telegraph was invented by P. L. Schilling in 1832. Radio, invented by A. S. Popov in 1895, uses electromagnetic waves for wireless signal transmission
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- Abdulaziz アベ💥
- Qo'shilgan
- 23.05.2026
