For all those not yet wearing tin foil hats check out the book "Mind Control World Control" by Jim Keith. Chapter 29 the title is "HUM JOBS AND
BALLS OF FIRE" Here is a small excerpt: pg 253 "Evidence that electromagnetic weapons are currently being
directed at civilian populations include strange sounds
described all over the world as "the Hum," "the Sound," or just
"It," a low, rumbling noise at the very edge of audibility. The
sound is described as persistent and maddening, as irritating as
the screech of fingernails on a blackboard.
In Taos, New Mexico, "the Hum" has been going on since
1991. "It sounds like a great, big American car engine that's on
idle," said Steven Walters. "When I first heard it, I thought I
was going crazy."
K.C. Grams, an area resident, says the sound can get so loud
that "my head buzzes, as if it were a beehive." books.google.com...
Schatzie Hubbell moved from Santa Fe, New Mexico, where
she was plagued by the sound, to Fort Worth, Texas. "After
living there for 32 years and being very involved in the
community, we had to leave," she said. "It's like a Chinese
torture treatment. It affects you at a level you can't get to.
Extreme irritation. Fingers across the chalkboard."
James Kelly, director of research on hearing at the University
of New Mexico says, "We now have two large populations who
hear these hums, here and in England. The people in Taos are
deeply disturbed by this. This is not trivial."
The noise is said to be incredibly annoying, and will not stop
unless you overwhelm it by playing the stereo or television
loudly, or doing something else to drown it out.
"The Hum" may have been even recorded by a Denver,
Colorado, acoustical engineer, between 17 and 70 cycles per
second, roughly the same audio level as distant thunder. This
study has been confirmed by a survey of people who have heard
the sound who, when it is simulated, place the frequency at
between 33 and 80 cycles per second"