Dear Brooks, Thank you for bringing the Lung Flute to our attention. Wow, talk about simple execution of an elegant idea!
I think once the FDA and the pharmaceutical lobbyists get done with it, the inventor would do more good for people, at least in the US, if he licensed the design to Wham-O and had them sell it as a Party Trumpet for $10 (Not for medical or therapeutic use...). <sigh> As for making it, I imagine the "reed" can be pretty simple... some chosen thickness of painters' dropcloth from the hardware store. The body could be made of 4 pieces of thin acrylic sheet. Getting the mouthpiece right would involve getting a close look at one to see the exact geometry, but the gross components would probably be easily made from PVC pipe fittings. Tweaking the frequency should be easily done by using a microphone to record the slapping of the reed with your computer's sound card and applying some simple spectral analysis tools to the signal. 16 Hz should be about the same as an open 32 foot organ pipe or 16 foot closed pipe, but I bet it'd be tough to sound it with the lung capacity of a healthy person, let alone one with pulmonary challenges. I could imagine building something with a slotted or perforated drum inside a cylinder. You'd mount a mouthpiece on the side of the cyliner and turn the drum with a motor. The openings in the drum would alternately open or close the airway at a frequency equal to the number of slots times the revolutions per second. More complex, certainly, but you'd have a pretty precise idea what you're getting with little trial and error. I hope it becomes available to the general public at a reasonable cost. If not, it'd be pretty useful as an indictment of the system. Be well, Mike D. [Mike Devour, Citizen, Patriot, Libertarian] [mdev...@eskimo.com ] [Speaking only for myself... ] -- The Silver List is a moderated forum for discussing Colloidal Silver. Instructions for unsubscribing are posted at: http://silverlist.org To post, address your message to: silver-list@eskimo.com Address Off-Topic messages to: silver-off-topic-l...@eskimo.com The Silver List and Off Topic List archives are currently down... List maintainer: Mike Devour <mdev...@eskimo.com>
