Yep, and on the receiving end, when I was nine, (many decades ago) I built my first radio receiver with only a
Gillette Blue Blade, a piece of pencil lead, a toilet paper tube -- and some scrap wire from an old transformer...
Today, I'd use a germanium diode, a tunable ferrite-core coil and add a variable capacitor for selectivity. And I might figure out a better antenna than the bedsprings I used as a kid... '-)
Give me a few months and I'd be building tetrodes and superhet receivers. ;)
We stand on the shoulders of giants.
/johnny