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Radio waves (formerly called Hertzian waves) are a type of electromagnetic radiation with the lowest frequencies and the longest wavelengths in the electromagnetic spectrum, typically with frequencies below 300 gigahertz (GHz) and wavelengths greater than .
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radio waves antenna electric propagation called wave frequency electromagnetic field frequencies used photons communication travel ghz receiver signal radiation different
| Subject | Predicate | Object | Confidence | Src |
|---|---|---|---|---|
| the Sun | instance of | and astronomical radio sources in space | 0.80 | text |
| galaxies | instance of | and astronomical radio sources in space | 0.80 | text |
| nebulas | instance of | and astronomical radio sources in space | 0.80 | text |
| light | instance of | like other electromagnetic radiation | 0.80 | text |
| radio waves can alternatively be regarded as streams of uncharged elementary particles called photons | instance of | like other electromagnetic radiation | 0.80 | text |
| atoms in a maser emitting microwave photons | instance of | except for certain molecular electron transition processes | 0.80 | text |
| radio wave emission | instance of | except for certain molecular electron transition processes | 0.80 | text |
| absorption is usually regarded as a continuous classical process | instance of | except for certain molecular electron transition processes | 0.80 | text |
| governed by Maxwell's equations | instance of | except for certain molecular electron transition processes | 0.80 | text |
| a building edge | instance of | Diffraction causes radio waves to bend around obstructions | 0.80 | text |
| a vehicle | instance of | Diffraction causes radio waves to bend around obstructions | 0.80 | text |
| or a turn in a hall | instance of | Diffraction causes radio waves to bend around obstructions | 0.80 | text |
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