Radio Telescopes and radio wires
Radio waves were detected in space for the first time in 1938. At the time, radio waves traveled around 60 light years away.
Radio Waves
Karl Jansky
Karl G. Janky
Radio waves
Radio waves are one example.
The electromagnetic waves native to Saturn are intense radio waves. In addition there are known to have changing frequencies which are detected by a Cassini wave instrument.
astronomy using radio waves, rather than visible light. visible light and radio waves are essentially the same, only radio waves have a much longer wavelength. not everything emits light in the visible band, many otherwise invisible objects can only be detected using extreme wavelengths.
"Sound waves" is the only item on that list that is not a form of electromagnetic radiation, so no form of 'telescope' works for sound.
no, mechanical waves are not radio waves
Transverse. Radio waves are electromagnetic waves, which are transverse.
Radio waves ARE electromagnetic waves.