Original poster: "Dr. Resonance by way of Terry Fritz <teslalist-at-qwest-dot-net>" <resonance-at-jvlnet-dot-com> a typo --- it should have read 1800 RPM not 18000 RPM. Dr. Resonance Resonance Research Corporation E11870 Shadylane Rd. Baraboo WI 53913 > > Wow, 18 inches in diameter spinning at 18,800 rpm? That thing must be > huge, sensitive....and noisy! Do you have any photos of it? >