- "Tempest for Eliza" (http://www.erikyyy.de/tempest/) is a Linux program that shows rapidly alternating patterns of black and white on your CRT. If you sit a correctly-tuned AM radio nearby you can hear music. The latest version of this program can even transmit MP3s. Examples: https://www.youtube.com/watch?v=DlVM9xqGKx8 (original version, sound in 2nd half); https://www.youtube.com/watch?v=3xPfAnPW2wY (MP3 version - FLICKERING/FLASHING, epilepsy warning)
- Van Eck phreaking has been mentioned elsewhere in here; I also remember a YouTube video of someone showing that it's possible to get something out of an LCD ribbon cable via simple RTLSDR: https://www.youtube.com/watch?v=5N1C3WB8c0o
- Mythbusters did a thing on the brown note concept. Myth.
- I'm yet to play around with https://en.wikipedia.org/wiki/Binaural_beats at some point, but I don't have any headphones.
- I've put the first thing this article made me think of last: EMR sensitivity. I have this, it drives me nuts. I'm using a laptop with Wi-Fi right now and I'm completely fine, but I can't use PlayStation 2s, and I have absolutely no idea why. My nervous system goes ballistic: I get incredibly anxious, I feel like I've been awake for 3 weeks without a break, I can't focus on anything because I'm so exhausted and everything feels like a chore, and most catastrophically, my cognition falls completely apart. I also have unbelievable amounts of doom/gloom (I feel like I'm dying from the inside out), either triggered from the other effects or as its own thing.
I would describe myself as reasonable, not particularly unhinged, and with no major emotional issues. Probably the most interesting/telling thing that's happened with this issue is that I once told a family member "I don't know what's going on, but I might need to get off the computer" one day - and then a little while later I coincidentally discovered that a DVD player that had not been turned on for years had been accidentally knocked and turned on (it had a push on/off mains switch on the front panel). FWIW, I've tried both the original and slimline PS2s, and the slimline one uses an external PSU brick - which I'm fine with, if it's not connected to the PS2. Hence my great confusion (I thought this was a simple "can't use power supplies" thing).
I had to stop using all technology for 4 years (2008-2012) after using a PS2 for about 3 days and it having a catastrophic impact; it was, of all things, fish oil that made a quantitative difference and let me use computers every day again. I don't get it at all, but the theory I now have is that the myeolin sheathing around my nerves is somehow damaged. (Perhaps tellingly, at one point while writing this text both of my arms twitched upwards. My jaw sometimes twitches as I talk as well.)
I'm reminded of a TV show I saw years ago that was talking about how the repeated lapping of waves against an oil platform's pylons created resonance that caused the pylons to shatter. On a similar note, the wineglass thing also works (even with the human voice) if you use an amplifier.
Perhaps unsurprisingly, I cannot work due to this issue - I have no idea why PS2s, DVD players and other random devices cause this problem, so I can't tell an employer what I unambiguously can and cannot handle.
Unfortunately, I know of nowhere in Sydney, Australia that is interested in digging into it. If anyone wants a guinea pig or test case, I'm in. I'd like to get a job!