Dear David, You are not alone with this problem, estimates made in the UK and the USA indicate that about one person in every hundred can hear the Hum to some extent and although some young people are affected, most people do not begin to hear the Hum until they reach their late forties. The most recent census of the UK shows that about ten million people are in this age group giving a figure of some 100,000 potential Hum sufferers and it is therefore surprising that this problem does not rate more attention.
I am sorry but I have no figures to indicate the number of Hum sufferers living in Ireland On Friday, March 6, 2015 at 2:40:48 PM UTC, David Hayes wrote: > > Hello John are you a sufferer? I hear the Hum all the time in Ireland and > Im having trouble getting the EPA to act. > > please join this group. > > https://www.facebook.com/groups/421777554665488/?fref=ts > > > On Thursday, 5 March 2015 21:32:45 UTC, John Dawes wrote: >> >> The Hum level is observed to make considerable variations that can be >> traced to three main causes. >> >> First is the daily cycle caused by the changing voltage on the power >> grid, this reaches a maximum at about 1 to 2 am each day. >> >> Second is the daily cycle of the ionosphere that takes place between >> sunset and sunrise. >> >> These two cycles are fairly constant and predicable, however, the >> ionosphere is dependant upon solar activity such as sunspots that can be >> very erratic. >> >> The third variation is caused by the weather, in particular the boundary >> between high and low pressure systems. It is possible to predict changes >> ijn Hum level using weather forecast charts. >> >> -- 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.
