M112

Hum and Schuman resonances

Annoying low frequency hum is a mysterious worldwide phenomenon. See for instance
http://www.earthpulse.com/science/taoshum.html (Taos hum refers to Tao in New Mexico)
http://www.eskimo.com/~billb/hum/hum.html and
www.eskimo.com/~billb/hum/bristol.html (points to LF modulated 150 Hz and 250 Hz and elderly hearers)
www.brummt.de
I am not sure whether there is a common cause of all reported cases of hum. When I myself was suffering from hum, the sources were obviously idle diesel engines, and I was worried by the peculiarity that a younger man within the same room claimed to be not disturbed at all. So I am aware of hugely varying sensitivity among individuals.

Some details might be worth to be checked for various reasons. Well, possibility of sound measurement has improved since for instance B&K extended the frequency range down to a few Hz. Nonetheless, I consider sensation of  low-frequency sound components and of low-frequency modulation anything but understood. May I hope for objections?
If the alleged direct perception of ELF electromagnetic waves is to blame, wouldn't this impair audiological measurement, too? What about Schumann resonances, I was stunned by the possibility that whispering gallery modes might propagate between the spheres and originally high frequencies might cause ELF as Andrew Bell reminded us of.

Eckard Blumschein
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Mark Germine, M.S., M.D. <MGerm97572@aol.com> wrote: Subject: Taos Hum;      Dear Friends,

I am a scientist who has worked in both geophysics and in medicine.  I know do work with the EEG (Brain Wave Machine).  Brain waves are driven at the same rate as frequecies of extremely low frequency (ELF) radio waves as well
as by rhythmic sounds and light flashes.  The pulses produce higher frequency harmonics.  With the ELFs, some people are effected and some are not.  The hum is propbably not caused directly by the ELF waves but rather by its physiological effect on the nervous system.  The most likely source of the ELF radiation is the Shumann resonances, which occur all over the planet but have local maximums and also periodic increases.
The Schuman resonances are standing extremely low frequency (ELF) electromagnetic waves.  There frequencies are in the same range as brain waves.  They vary in intensity locally and temporally, depending on the distance between the surface or the earth and the ionosphere, which form two conducting layers separated by an insulating layer.  These ELF waves seem to amplify brain waves, and through the quantum Zeeman-Stark Effect cause other changes.  They also drive brain waves of the same frequency and of harmonic frequencies.
Some recent work I have done with electroencephalography (EEG) indicates that observation or measurement in the quantum sense by the brain is associated with a 8 to12 Hz. or ELF frequency.  So, external ELF waves may actually
"scramble" conscious process.  Sounds or flashing lights of this frequency have also been reported to cause disorientation, consistent with an effect on consciousness.
Shuman resonances are best measured by the horizontal component of the atmospheric magnetic field.  They have been measured all over the earth.  Frequency peaks in cycles per second are reported at 8, 14, 22, 26, 32, and 38.  These waves little travel around the earth in a fraction of a second.  Lightning adds to the 8 Cycle Schuman resonance. The source of the Schuman resonance seems to be cosmic radiation caught up in the ionosphere.  Locally, it is possible that the radio wave output of our own brains me be making a contribution, but this seems unlikely.
I am very interested in the possible relation between the Hum, the Shuman resonance, and the human EEG and ERP (event related potential) profile, and hope I can be of service.
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Richard Larson desribed his experience:
The HUM has been very loud in Coal Valley this year.  The last two days it has been 7 on a scale of 10. At night, instead of sleeping, I rest with my eyes closed and listen to the HUM.  I can drowned it out with a white noise generator, but I have to turn it up so loud that the additional noise contributes to my lack of sleep. Not everybody can hear the HUM.  This we know from the conversations on this forum and in daily interaction with other people.  However, not everybody has the same hearing.  Some can still hear 15k and above, while others can hear below 20Hz.  Noting the difference in peoples hearing suggests that the bones and nerves in the hearing system may have slight variations.   Nerves can be irritated and become more sensitive to stimulus.  An example of this may be as simple as somebody that has a tooth sensitive to heat or cold.
In my case I can only hear the HUM in my right ear.  Both of my ears have been exposed to the same amount of noise my entire life.   This makes me think that something in the mechanics of the ear is slightly different, and that one of the bones or nerves in one ear has become more sensitive to the HUM than the other.  This increase in sensitivity is giving me a great deal of discomfort to the point that at night the HUM actually makes the side of my head hurt.  Even during normal daily activities if I am exposed to the same frequency as the HUM ie: a song on the radio, it also makes the pain more intense.
Schuman resonance  may be exactly what we are all experiencing. Has anybody noticed that the HUM seems to increase every time Clinton takes another leg of his World tour? Watch the news for stories about whales beaching themselves.
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