Mark Twain: “It’s easier to fool people than to convince them that they have been fooled.”
Pulsing pressure changes – wake – turbulence. Things you can’t hear or see have physical effects.
The Core Mechanism
When wind passes through a turbine, it doesn’t just “spin blades” — it gets disturbed. The blades extract kinetic energy from the air, and that alters both its velocity and pressure.
Each blade acts like a rotating airfoil (similar to an airplane wing), creating alternating regions of:
- Low pressure on the suction side (front side relative to rotation),
- Higher pressure on the trailing side.
As these pressure zones rotate through the air, they generate periodic pressure pulses — a rhythmic compression and decompression of the surrounding air. This happens roughly once per blade per rotation.
🔹 The Wake Effect
Behind the turbine, the airflow slows down and becomes turbulent — a churning region called the wake.
Within that wake:
- Air pressure fluctuates as large rotating vortices form and shed off the blade tips and hub.
- These vortices interact and create a repeating “pulsing” pattern in both pressure and velocity.
Think of it as a rotating corkscrew of disturbed air that trails for hundreds or even thousands of feet downwind.
🔹 Why It’s “Pulsing” or Rhythmic
The rhythmic component comes from blade-pass frequency — the number of blades × rotational speed.
For example:
- A 3-blade turbine spinning at 20 RPM →
3 blades × 20 rotations/min = 60 pressure pulses per minute (1 Hz).
That’s a low-frequency thump once per second, which aligns with the “infrasound” range (below 20 Hz) — too low to hear, but definitely physical.
Each pulse corresponds to a change in aerodynamic load as a blade passes the tower and moves through uneven wind shear (since wind speed and angle vary with height). This reinforces the oscillation in pressure.
🔹 Secondary Effects
- Tower Shadow: As a blade passes in front of the tower, it momentarily moves through slower, disturbed air. This causes a quick dip and rise in aerodynamic force — another pressure fluctuation.
- Tip Vortices: The swirling air at each blade tip forms small tornados that interact and shed downstream — adding secondary pulsing effects.
- Atmospheric Coupling: These low-frequency pulses propagate through both the air and the ground, because air pressure waves can couple into the soil or structures.
🔹 In Plain Terms
Behind a turbine, you’ve got a huge, slow-turning fan that’s constantly chopping the wind into pulses. Each time a blade sweeps by, it compresses and decompresses the air slightly. Those repeating disturbances combine into a pressure pattern that can:
- Travel long distances downwind,
- Interfere with nearby turbines (reducing efficiency),
- And, yes — be physically perceptible as pressure oscillations, especially at low frequencies.
The Biological Relevance of Pressure Pulses
All living organisms — humans, animals, even plants — are sensitive to pressure variations in their environment.
These pulses from turbines fall into the infrasound range (<20 Hz), which you can’t “hear,” but your body can feel and respond to physiologically.
🔹 For Humans
Low-frequency pressure fluctuations can:
- Resonate with body cavities and tissues — lungs, inner ear, even fluid compartments — producing discomfort or dizziness.
- Affect the vestibular (balance) system, since the inner ear detects more than just sound; it senses pressure changes and motion.
- Influence sleep, heart rate, and stress hormones, according to some field studies and lab findings (though controversial because industry-funded research often minimizes these effects).
Essentially, the body treats infrasonic pulsing like a continuous physical stressor, even if you’re not consciously aware of it. People often describe it as pressure in the head, chest tightness, or feeling “unsettled.”
🔹 For Animals
Animals, especially those with acute low-frequency hearing or pressure sensitivity, can be even more affected:
- Livestock and wildlife: Studies show changes in cortisol (stress hormone) levels, altered grazing, and avoidance of turbine areas.
- Birds and bats: The turbulent wake can physically disrupt flight paths and pressure-sensitive navigation.
- Marine life (if turbines are offshore): Pulsing pressure propagates through water efficiently, where fish and marine mammals are especially sensitive.
🔹 For Plants and Microorganisms
There’s limited research, but theoretically, prolonged pressure oscillations could:
- Alter microclimates (humidity, CO₂ diffusion),
- Affect soil microbiota near turbine bases through mechanical vibration coupling,
- Influence pollination if insects change activity patterns due to vibration or noise fields.
🔹 The Mechanistic Link
It all comes down to resonance and stress response. Biological systems operate in narrow equilibrium ranges. Repeated infrasonic pulses — even tiny ones — can:
- Trigger the autonomic nervous system,
- Cause subtle fluid shifts or membrane tension changes,
- Lead to chronic stress adaptation, which in nature often means avoidance or physiological strain.
🔹 In Plain Talk
Behind a turbine, the air itself is “breathing” unnaturally — expanding and compressing rhythmically at low frequency. Anything living in that environment — human, animal, or otherwise — gets subtly “pushed and pulled” by those pressure changes over and over. Over time, it’s not crazy to expect biological effects.
“Those who benefit from the lie will always fight the truth the hardest.”
Biological bodies – human bodies are sensitive, finely tuned quantum bio-electric, light beings – totally responsive & interactive to the environment of frequencies in the field. We get code from our environment that instructs our body how to work – health.
BOOKS to Learn about THIS in detail:
The Invisible Rainbow: A History of Electricity and Life
The Influence of Ocular Light Perception on Metabolism in Man and in Animals
Light in Shaping Life – hard to find. Ebay maybe?