Radio Waves
Japanese Name:
電波
Romaji Name:
denpa
Description
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Electromagnetic Waves (Radio Waves), commonly known as radio waves, are a form of electromagnetic radiation that can travel through space, air, and other materials. They are used in various applications, including communication, broadcasting, and even medical technology. Radio waves are a type of electromagnetic wave in the electromagnetic spectrum, with longer wavelengths than microwaves and infrared radiation but shorter than infrared and visible light.
History
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Radio waves were first predicted by James Clerk Maxwell in the 1860s through his electromagnetic theory.
In 1888, Heinrich Hertz proved the existence of radio waves with laboratory experiments.
Guglielmo Marconi developed the first practical radio communication system in the 1890s.
By the early 1900s, radio waves were used for wireless telegraphy and maritime communication.
The first public radio broadcasts began in the 1920s, bringing news and music to homes.
Radar and other radio technologies played a major role during World War II.
Today, radio waves are used in communication, broadcasting, GPS, Wi-Fi, and more.