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Radio, sound communication by radio waves, usually through the transmission of music, news, and other types of programs from single broadcast stations to multitudes of individual listeners equipped with radio receivers. Learn more about the history of radio in this article.
The early history of radio is the history of technology that produces and uses radio instruments that use radio waves. Within the timeline of radio, many people contributed theory and inventions in what became radio. Radio development began as "wireless telegraphy".
1 de fev. de 2024 · Scientists initially used the term ‘radio’ to explain electromagnetic radiations employed in innovations such as radio-telegraphy (this was a means of transmitting messages in the absence of poles, cables, or wires). Simply put, it was used to mean radiation or radiant.
4 de out. de 2023 · The radio is an innovation that fundamentally transformed the landscape of communication and entertainment worldwide. Its invention is credited to an Italian electrical engineer, Guglielmo Marconi.
Radio technology, transmission and detection of communication signals consisting of electromagnetic waves that travel through the air in a straight line or by reflection from the ionosphere or from a communications satellite. Learn more about the history, development, and principles of radio technology in this article.
Radio is the technology of communicating using radio waves. [1] [2] [3] 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 the waves.
