Radio wave
![](http://upload.wikimedia.org/wikipedia/commons/thumb/a/a6/Dipole_xmting_antenna_animation_4_408x318x150ms.gif/220px-Dipole_xmting_antenna_animation_4_408x318x150ms.gif)
Radio waves bi a taip of elektromagnetik radiashion with di longest wavelengths for di elektromagnetik spektrum, taipikally with frequencies of 300 gigahertz (GHz) and below.[1] At 300 GHz, di korresponding wavelength bi 1mm, wen dé shorta than di diameta of a grain of rais. At 30 Hz di korresponding wavelength bi ~10,000 kilometas (6,200 miles), wen dé longa than di reidius of di Earth. Wavelength of a radio wave dé invasly proporshional to it frequency, bekaus it velocity dé konstant. Like all elektromagnetik waves, radio waves for a vakuum dé travel at di speed of light, and for di Earth's atmosfe at a slaightly slowa speed. Radio waves dé jenerated by charjd partikuls wen dé undago accelerashion, such as taim-varying elektrik kurrents. Naturally okkurring radio waves dé emitted by lightning and astronomikal objects, and dé part of di blakbodi radiashion wen all warm objekts dé emit.
![](http://upload.wikimedia.org/wikipedia/commons/thumb/9/93/Radio_waves.svg/300px-Radio_waves.svg.png)
Referens
[chenj-am | chenj-am for orijin]- ↑ Manning, Catherine (2015-05-06). "What are radio waves?". NASA (in Ínglish). Retrieved 2023-09-21.