The jetstream could help the hum propagate and even amplify it, I'm having a close look at weather charts regularly, the source of the hum could be somewhere in the Atlantic Ocean or under the sea west of Ireland.
Le dimanche 5 juillet 2015 12:04:54 UTC+2, John Dawes a écrit : > > I have recently made some measurements concerning the energy required to > produce the Hum > > The basic principle is the same as I have described before, that is to > measure the depth of modulation produced when the Hum energy interacts with > a vibrating spring. > > I have found that the average Hum energy measured indoors is about 0.12 > watts per square metre > Compare this to the results of Allan Frey who found the threshold of > microwave hearing to be 3E-4 Watts per square metre. > > The threshold of human hearing using sound waves is stated as 1E-12 Watts > per sq metre > > The question now is find what source is supplying this relatively high > amount of energy over such large areas. > > It would be of help to compare the figure I have given here with other > sources but so far I have found only one person who has estimated the > amount of energy needed to produce the Hum. > > > -- 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.
