> piezoelectric - when hit with a shock force,
> generates a high voltage spike
> conversely
> when injected with a high voltage spike,
> it generates a shock vibration
If you exercise air the upper limit must be when oxygen/hydrogen
vibrate, if you exercise Ether...it's depending on medium.
Water bath can improve vibrational transfer. Sonars use this tech.
Maybee there is a common dominator here for The Roger's Radio,
it was two plates put underwater, with a calculated distance between.
(Like capacitor plates) but apart depending on freq. of transmitter,
some kind of standing waves? The plates was exercised by voltage.
Have also seen some health terapeutic unit working with plates
in water, to put foots in.
Roger