Can't remember where but I saw this somewhere recently... anyway... did anyone read the responses (not the stupid religious debate)? Someone mentions subsonic sounds and someone else (trying to sound scientific) states that they won't move the salt because they don't stimulate a membrane. Is it just me or is that totally incorrect? Just because we can't hear the sound doesn't mean it won't move some salt around does it?
Edit: Oops, my bad, they mentioned ultrasonic sound, not subsonic... still, you would think it would have some effect on the salt even if we can't hear it (maybe??)...
Wow neat; I'm sure the sub, infra and any other sonics will move salt, some faster than others. Has to do with energy transfer/coupling I'm sure, so a huge wave may have little perceptible effect on a grain of fine salt.
Was this on a solid surface or was the surface vibrating with the energy causing the salt to shift?
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