Stamp: Alexander S. Popov (1859-1905), Inventor of Radio (Soviet Union, USSR 1925)
Alexander S. Popov (1859-1905), Inventor of Radio (Soviet Union, USSR 1925)
01 October (Soviet Union, USSR ) within release 30th Anniversary of Invention of Radio by A. S. Popov goes into circulation Stamp Alexander S. Popov (1859-1905), Inventor of Radio face value 7 Russian kopek
| Stamp Alexander S. Popov (1859-1905), Inventor of Radio in catalogues | |
|---|---|
| Michel: | Mi:SU 300 |
Stamp is vertical format.
Also in the issue 30th Anniversary of Invention of Radio by A. S. Popov:
- Stamp - Alexander S. Popov (1859-1905), Inventor of Radio face value 7;
- Stamp - Alexander S. Popov (1859-1905), Inventor of Radio face value 14;
Stamp Alexander S. Popov (1859-1905), Inventor of Radio it reflects the thematic directions:
A scientist is a person who researches to advance knowledge in an area of the natural sciences
Radio is the technology of communicating using radio waves. Radio waves are electromagnetic waves of frequency between 3 hertz (Hz) and 300 gigahertz (GHz). They are generated by an electronic device called a transmitter connected to an antenna which radiates oscillating electrical energy, often characterized as a wave. They can be received by other antennas connected to a radio receiver, this is the fundamental principle of radio communication. In addition to communication, radio is used for radar, radio navigation, remote control, remote sensing, and other applications.
