Hearing an AM Radio Station Through Grass
ateijeiro0 · Demo · 2 min · 2012 · YouTube title: Listening radio with grass
Why it's here
HN commenters bring it out whenever AM radio, strong transmitters or accidental demodulation comes up, as the classic example of grass playing radio.
What it covers
Two experimenters hold blades of grass near a radio transmitter antenna and hear the AM station through the arc between antenna and grass. It is a short, informal demonstration of unintentional AM demodulation.