There are little electronic kits for children and I got one as a kid. Remember the AM radio? You clip little wires in the little slinky holders and there's an antenna, a crystal, a tuner and earpiece.
In recent years I was thunderstruck to review that, and there's no battery! Seriously, the radio energy is strong enough to be captured by the antenna, get tuned and drive a coil so hard the diaphragm vibrates loud enough for your ear to hear.
When I first realized that years ago, the thought naturally occurred to me that all of the radio waves going on at once, coupled with the human head's lack if EMI or RF shielding, maybe that could be a factor in problems people have. I got over that tangent because you'd have to go to Antarctica to test it and it already takes a odd brain to want to go there... moving right along...
But with the little Linux devices running on such low power, I thought to ask how many antennas would it take to harvest so many frequencies it could power a tiny Pi or similar computer?
I thought I've only asked this at an audio forum and there were people who claimed there's a science called something like energy harvesting. But it maybe makes sense, especially considering how valuable low-powered devices can benefit etc.
Got that off my chest and apologies if I've mentioned it before, but I'm not through with that subject and I'd love to hear thoughts if I could persuade your unshielded brain to action LOL
In recent years I was thunderstruck to review that, and there's no battery! Seriously, the radio energy is strong enough to be captured by the antenna, get tuned and drive a coil so hard the diaphragm vibrates loud enough for your ear to hear.
When I first realized that years ago, the thought naturally occurred to me that all of the radio waves going on at once, coupled with the human head's lack if EMI or RF shielding, maybe that could be a factor in problems people have. I got over that tangent because you'd have to go to Antarctica to test it and it already takes a odd brain to want to go there... moving right along...
But with the little Linux devices running on such low power, I thought to ask how many antennas would it take to harvest so many frequencies it could power a tiny Pi or similar computer?
I thought I've only asked this at an audio forum and there were people who claimed there's a science called something like energy harvesting. But it maybe makes sense, especially considering how valuable low-powered devices can benefit etc.
Got that off my chest and apologies if I've mentioned it before, but I'm not through with that subject and I'd love to hear thoughts if I could persuade your unshielded brain to action LOL