Stamp: Amando Céspedes Marín, Radio Pioneer (Costa Rica 2020)
Amando Céspedes Marín, Radio Pioneer (Costa Rica 2020)
01 November (Costa Rica ) within release Legacy of Our Independence : Famous Costa Ricans (2020) goes into circulation Stamp Amando Céspedes Marín, Radio Pioneer face value 995 Costa Rican colón
| Stamp Amando Céspedes Marín, Radio Pioneer in catalogues | |
|---|---|
| Colnect codes: | Col: CR 2020-06c |
Stamp is square format.
stamp from souvenir sheetAlso in the issue Legacy of Our Independence : Famous Costa Ricans (2020):
- Souvenir Sheet - Legacy of Our Independence : Famous Costa Ricans face value 2,270;
- Stamp - Omar Dengo Guerrero, Educator and Author face value 610;
- Stamp - Ángela Acuña Braun, Lawyer and Women's Suffrage Activist face value 665;
- Stamp - Amando Céspedes Marín, Radio Pioneer face value 995;
Stamp Amando Céspedes Marín, Radio Pioneer it reflects the thematic directions:
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.
