Thanks for your comment. The whisker radio crystal tweaking notion came to mind for me too one day when I was searching around on my large Himalayan salt cooking block trying to find a spot that would resonate best with a hot metal object. Slight variations in roughness on the surface can affect the feedback, not being perfectly flat or perhaps the crystalline variations in the salt too. This little piece of silicon just barely starts to make some of the sounds I'm after if it would modulate more. th-cam.com/video/x7pfBGUeEPI/w-d-xo.html One time with a very thin aluminum pie pan and salt block the sensitivity was so receptive even lightly touching a finger on the top of my tool cart well over a foot away causes the sound to flipflop. It was so sensitive that it caused me to wonder, if perfected, merely moving my hands in the air above it could one day affect it, like playing a theremin. This account of The Vowel-Flame is an interesting, almost unbelievable sensitivity of flames to sound. The paragraph here. archive.org/details/sound-by-john-tyndall/page/n139/mode/1up
Peculiar.
Interesting, reminds me of someone poking at a whisker radio or chunk of silicon
Thanks for your comment.
The whisker radio crystal tweaking notion came to mind for me too one day when I was searching around on my large Himalayan salt cooking block trying to find a spot that would resonate best with a hot metal object. Slight variations in roughness on the surface can affect the feedback, not being perfectly flat or perhaps the crystalline variations in the salt too. This little piece of silicon just barely starts to make some of the sounds I'm after if it would modulate more.
th-cam.com/video/x7pfBGUeEPI/w-d-xo.html
One time with a very thin aluminum pie pan and salt block the sensitivity was so receptive even lightly touching a finger on the top of my tool cart well over a foot away causes the sound to flipflop. It was so sensitive that it caused me to wonder, if perfected, merely moving my hands in the air above it could one day affect it, like playing a theremin.
This account of The Vowel-Flame is an interesting, almost unbelievable sensitivity of flames to sound. The paragraph here.
archive.org/details/sound-by-john-tyndall/page/n139/mode/1up