Yeah the part about not requiring batteries was fascinating to me when I was little. My dad had located an old one from somewhere; I remember him showing it to

Yeah the part about not requiring batteries was fascinating to me when I was little. My dad had located an old one from somewhere; I remember him showing it to me and having grown up with what were more modern radios at that point, the fact it could work without batteries was somehow at the same time mystifying but also made the world of electronics seem more approachable. Reading about this leads me to wonder if there are certain benefits to many of these very old designs that have been lost due to overlooked priorities. As in, I'm not saying we should all be using crystal radios again but having a functional radio that doesn't require power seems like a plus at some level.