There is a new E book out called 'The Hum' that explores one controversial theory on the source of the hum worldwide. It can be found on Barnes and Noble, Amazon, i Books, ebookit. Check it out.
On Sunday, May 3, 2015 at 2:55:00 PM UTC-4, John Dawes wrote: > > One method that I have described before consists of allowing the energy of > the Hum to modulate a small mass that is in a state of vibration. > Knowing the energy of the vibrating mass and measuring the depth of > modulation it is possible to give a value to the intensity of the Hum. > I have attached a photo showing a typical modulation. > The depth of modulation can be made by direct measurement of the > oscilloscope display or by separating the modulation by means of an > electric circuit. > This can then form the basis of a complete portable Hum measuring > instrument such as the photo example I have attached > > -- You received this message because you are subscribed to the Google Groups "Hum Sufferers" group. To unsubscribe from this group and stop receiving emails from it, send an email to [email protected]. To post to this group, send email to [email protected]. Visit this group at http://groups.google.com/group/hum-sufferers. For more options, visit https://groups.google.com/d/optout.
