AM is a dynamic pulse of the same frequency, is it.
The radiowave sinewave has a specific frequency, but the top and bottum change in highed.
Just like an broken alternator can produce if you would modulate the rotor coil....
I always have been a fan of sinewaves because whole mother natur excists out of it....
In that perspective....
See what a wipe does when you hit with it.
Maybe we have to hit the watermolecules hard with the righ wipe