radio waves

1. Waves at the end of the electromagnetic spectrum with the lowest frequency (less than 300 megahertz) and the longest wavelength (from a few feet to many miles). Because of their low frequency, radio waves carry very little energy compared to other electromagnetic waves. (See Planck's constant.)

Radio waves can pass through the atmosphere and therefore are very useful for communication. Commercial, short-wave, and citizens' band radio are broadcast with radio waves, as is television.

Example Sentences

For the first time, researchers at Tel Aviv University have predicted what might be discovered by detecting radio waves that originated in the early Universe.

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This unusual discovery revealed powerful and rapidly changing radio waves, showing that supermassive black holes can exist and stay active far beyond galactic centers.

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Unlike visible light, radio waves from hot gasses are not blocked that easily by cosmic dust.

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The satellites send out signals using radio waves, which are received by a GPS receiver.

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These imitations can come in flat-packs, be inflatable, 2D or create a radar illusion of a tank by reflecting radio waves in a special way.

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