This is what makes the reference to Helmholtz resonators spurious. The magic bowls lack the fundamental structure of Helmholtz resonators.
The ART's page also mentions Tesla. Are you going to say these bowls are not Tesla?
FC, your logic completely escapes me. You make up numbers and you draw conclusions that no one should reach.
And though you remain shackled by the limitations of your existing "knowledge" you have come to the conclusdion the ART's system is bullshit.
Brilliant! Simply brilliant!