Science glossary film: Radio Waves Glossary video

Radio Waves Glossary video

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The lowest frequency range of electromagnetic radiation, with wavelengths from millimeters to many kilometers.

The lowest frequency range of electromagnetic radiation, with wavelengths from millimeters to many kilometers. Radio waves travel very well through Earth's atmosphere, which is why they are so widely used for telecommunications. It is also why radio waves, along with visible and infrared light, are the only portion of the electromagnetic spectrum used for Earth-based astronomy.

Radio waves travel very well through Earth's atmosphere, which is why they are so widely used for telecommunications. It is also why radio waves, along with visible and infrared light, are the only portion of the electromagnetic spectrum used for Earth-based astronomy.

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