by Tony Smith
For material on this page,
I have benefited from communications with J. C. Paul,
Michael Gibbs, and Jim Branson (e-mail: email@example.com).
However, they are not responsible for any incorrect
Just as a tuning fork has natural
frequencies for sound, the planet Earth has natural frequencies,
called Schumann resonances, for electromagnetic radiation.
also has natural frequencies for electromagnetic radiation.
It turns out that the Earth’s Schumann resonances are “in tune” with
the Human Brains’s Alpha States and Theta States.
The fundamental frequency of the Schumann resonance is roughly the
fundamental frequency of a spherical shell whose inside boundary is
the surface of the Earth and whose outside boundary is the
ionosphere, acting as a spherical shell electromagnetic waveguide
The fundamental frequency ought to be roughly the time it takes
electromagnetic radiation to go all the way around the spherical
Since the speed of light is about 300,000 km/sec and one cycle is
the circumference of the Earth, which is about 40,000 km/cycle the
fundamental frequency should be on the order
of 300,000 km/sec
________________ = 7.5 cycle/sec
A cycle/sec is just a Hz, so that 7.5
cycle/sec is 7.5 Hz.
The Schumann Resonances are actually observed by experiment
to occur at several frequencies between 6 and 50 cycles per second;
specifically 7.8, 14, 20, 26, 33, 39 and 45 Hertz, with a daily
variation of about +/- 0.5 Hertz.
The 7.8 Hz observed fundamental resonance is close to the rough
theoretical estimate of 7.5 Hz.
So long as the properties of Earth’s electromagnetic cavity remains
about the same, these frequencies remain the same. The
solar sunspot cycle may change the frequencies, because
the Earth’s ionosphere changes in response to the 11-year cycle of
The fundamental frequency could be varied due to a number of things:
If you look at the interior of the
Earth, you see that there is a
differential physical rotation of the solid
inner core with respect to the surface of the Earth.
However, it takes about 400 years for the inner core to make a
complete revolution inside the Earth, so that its frequency is only
one cycle per 400 years.
It is more interesting to look at the frequency of currents at the
boundary between the solid inner core and the liquid outer core.
Since the inner core has radius of about 1,200 kilometers, its
circumference is about 7,500 kilometers.
How long would it take an electrical current, traveling at the speed
of light (300,000 km/sec), to go once around the circumference of
the inner core (7,500 km)?
That is about 7,500 km / 300,000 km/sec, or 1/40 sec. In other
words, the natural frequency of the Earth at the boundary of the
inner core is about 40 cycles/sec, which is at the upper end of the
range of frequencies measured for the Schumann resonances: 7.8, 14,
20, 26, 33, 39 and 45 Hertz.
Therefore, the Schumann resonance frequencies correspond to the
range of natural frequencies of the Earth from its surface to the
boundary of its solid inner core.
Research on Schumann resonances is done by Dave Sentman and
Matt Heavner in Alaska.
The weakening of the Earth’s magnetic field over the past 2,000
years that has been observed may indicate the onset of another
magnetic field reversal. The last reversal of Earth’s magnetic field
was about 788,000 years ago.
The map (taken from the cover of Nature, illustrating the article of
Lau, Mazaud, Weeks, Fuller, and Herrero-Bervera, Nature vol. 351 -6
June 1991- page 447) shows movement of virtual geomagnetic pole
(VGP) from its present position near the Earth’s axial north
pole during excursions and reversals that occurred about 120,000
years ago, about 1.8 million years ago, about 6.5 million years ago,
and about 11 million years ago.
The VGP primarily moves between the Mid-Atlantic Ridge and the
Pacific West Coast of the Americas, but secondarily it moves along
the Asian Pacific Rim, and sometimes it seems to be located at the
antipodal area of the center of the Pacific Ocean, in the region of
Jim Branson has noted that
Schumann Resonance data from
quake.geo.berkeley.edu show a daily
periodicity for the peaks of BT1 (North-South component) and BT2
The BT1 peaks (East-West Schumann component) seem to be when the
subsolar longitude (local noon) is about 8 hours west of Greenwich,
which is along the North American West Coast, where the tectonic
motion is North-South shearing.
The BT2 peaks (North-South Schumann component) seem to be when the
subsolar longitude (local noon) is about 2 hours west of
Greenwich, which is along the Mid-Atlantic Ridge, where the tectonic
motion is East-West spreading.
Therefore, the BT1 and BT2 peak longitudes seem to mark the
boundaries of the primary zone of VGP movement during geomagnetic
excursions and reversals.
The natural frequencies of the
Human Brain are:
Beta waves (14 to 30 Hz)
Alpha waves (8 to 13 Hz)
Theta waves (4 to 7 Hz)
Delta waves (1 to 3 Hz)
Alpha frequencies have been associated
with meditation and relaxation. Theta frequencies have been
associated with a dreamy, creative states.
According to a web page related to an October 2002 Physics News
“...EEGs can now record brainwaves
without the need for electrodes to be inserted into the brain or
even for them to be placed on the scalp. The figure shows a
brainwave trace for periods when the eyes are open and when they
The red regions respond to the alpha wave (eyes closed) at a
frequency of around 9 Hz. (Courtesy University of Sussex) ...”.
The Beta and Alpha waves
(8 to 30 Hz) seem to correspond to the Schumann resonances: 7.8, 14,
20, 26, 33, 39 and 45 Hertz. The 30 Hz high end of the Beta waves is
roughly coincident with the frequency of cats’ purrs:
According to an 18 March 2001
article in the London Telegraph by David Harrison:
“... the purring of cats is a 'natural healing mechanism'...
between 27 and 44 hertz... was the dominant frequency for a
house cat, and 20-50Hz for the puma, ocelot, serval, cheetah and
caracal. This reinforces studies confirming that exposure to
frequencies of 20-50Hz strengthens human bones and helps them to
grow... Almost all cats purr, including lions and cheetahs,
though not tigers...”
However, according to a Bengal
Tiger web page: “...[Bengal] tigers purr. Domestic cats purr
when breathing in and out - tigers purr only when [breathing]
out... the roar of a Bengal tiger can be heard 2 miles away...
the Siberian tiger, a cousin of the Bengal tiger, is the world’s
What about the Theta and Delta Waves (1
to 7 Hz)?
The 1 Hz frequency of the Delta waves is 7.5 times lower than the
7.5 Hz natural frequency at the surface of the Earth. Since the
radius of the Earth is about 6,400 km, the radius for a 1 Hz natural
frequency is about 7.5 x 6,400 = 48,000 km.
Here are some natural frequencies that seem to correspond to the
Delta and Theta waves of the Human Brain.
Plasma Sheet (opposite Sun),
inner radius = 60,000 km 0.8 Hz
Magnetopause (toward Sun),
radius = 60,000 km 0.8 Hz
Geosynchronous orbit, radius =
35,000 km 1.4 Hz
Outer Van Allen electron belt,
outer radius = 25,000 km 2 Hz
Inner Van Allen proton belt,
outer radius = 12,000 km 4 Hz
Inner Van Allen proton belt,
inner radius = 8,400 km 5.7 Hz
As to the following frequencies:
Magnetopause (opposite Sun),
radius = 380,000 km 0.125 Hz
Plasma Sheet (opposite Sun),
outer radius = 380,000 km 0.125 Hz
Moon orbit, radius = 384,000 km
It is interesting that 0.125 Hz is about
8 seconds per cycle, which is roughly the same period as the 5
second delay that has been observed between the onset of a 1 to 2
millitesla magnetic field (about 100 times stronger than Earth’s
magnetic field) and the first bursts of brain activity responding to
the magnetic field.
(See Science 260-1590 - 11 June 1993)
Low-frequency electromagnetic waves of humans may be associated with
Qi. If so, Qi may be detectable physically.
Qi Field is one of the promising
New Technologies. The microtubule structure of brains and other
cells may be the key to phenomena such as consciousness.
Human brain wave activity can be compared to that of Dolphins. Some
experiments show connections between the brain states and resonant
electromagnetic waves, raising the possibility that the Human Brain
has evolved to be “in tune” with Planet Earth.
Dolphin and Human Brains may contain
BioMagnetite that could give them
an electromagnetic sense that could provide a link between Brains
and many types of electromagnetic phenomena, including but not
limited to Schumann Resonance Phenomena.
Steve Mizrach (Seeker1) has web pages that describe Mind
Machines, or devices that affect state of mind by stimuli such as
light, sound, electricity, and chemicals. Dave Siever (Comptronic
Devices) has web pages that describe some of the history of mind
stimulation by light and sound. An example of mind stimulation by
light is part of the initiation ceremony of Zoroastrianism.
Some of these matters were dealt with in the Tucson Conferences in
1994 and 1996 on the phenomena of consciousness. A third Tucson
Conference is planned for 1998.
Related Mind and Consciousness phenomena include
Parapsychological Phenomena such as found by: