I am sure we could get some answers by examining these devices: http://www.amazing1.com/ultra.htm
Though those produce more negative effects, it's a starting point. There's mention of 40KHz, but isn't that within the range of "conscious" human hearing anyhow? Also I own an ultrasonic dog barking deterrent (little wand called Easy Trainer, produces a barely-audible hum) that works well on animals and if I use it for more than five seconds or so I quickly feel "motion sick" and get a strange sort of headache. As we do not own a dog anymore I could butcher the device and see what makes it tick if that would be of any help. Perhaps there's an adjustable pot somewhere inside. silver-list@eskimo.com wrote: > i know that different ELF and ULF frequencies can produce different physiological effects, but does anyone know which frequency does what? Dennis -- The silver-list is a moderated forum for discussion of colloidal silver. To join or quit silver-list or silver-digest send an e-mail message to: silver-list-requ...@eskimo.com -or- silver-digest-requ...@eskimo.com with the word subscribe or unsubscribe in the SUBJECT line. To post, address your message to: silver-list@eskimo.com Silver-list archive: http://escribe.com/health/thesilverlist/index.html List maintainer: Mike Devour