![refraction - In what media the speed of light is slower than the speed of radio waves, if any? - Physics Stack Exchange refraction - In what media the speed of light is slower than the speed of radio waves, if any? - Physics Stack Exchange](https://i.stack.imgur.com/L88qc.png)
refraction - In what media the speed of light is slower than the speed of radio waves, if any? - Physics Stack Exchange
Could radio waves traveling into space for 100 (or more) years still be understood? Or will the signal have degraded/dispersed too much? - Quora
![The velocity of all radiowaves in free space is `3xx10^(8),//s`, the frequency of a wave of - YouTube The velocity of all radiowaves in free space is `3xx10^(8),//s`, the frequency of a wave of - YouTube](https://i.ytimg.com/vi/NLF-iTaeT3Q/maxresdefault.jpg)