Excerpt from: "Lost Science"   by Gerry Vassilatos 

Chapter 8 
"Deadly Sounds"    Dr. Vladimir Gavreau

Not much amplitude is required for infrasound to produce physiological malady. Several researchers accidentally did themselves great harm when, by deliberate intent or accident, they succeeded in generating infrasonic vibrations. Tesla used vibrating platforms as an aid to vitality. He delighted in "toning the body" with vibrational platforms of his own design. Mounted on heavy rubber pads, these platforms were vibrated by simple motorized "eccentric" wheels.

Their mild use, for a minute, could be pleasantly stimulating. The effects invigorating the whole body for hours thereafter. Excessive use would produce grave illness however, excessive aggravations of the heart being the most dangerous aspect of the stimulation. The entire body "rang" for hours with an elevated heart rate and greatly stimulated blood pressure. The effects could be deadly.

In one historic instance, Samuel Clemens, Tesla's close friend, refused to descend from the vibrating platform. Tesla was sorry he had allowed him to mount it. After repeated warnings, Tesla's concern was drowned out by both the vibrating machine and Clemens' jubilant exaltations and praises. Several more seconds and Clemens nearly soiled his white suit, the effects of infrasound being "duly recorded".

Tesla often went to great lengths in describing the effects of infrasounds to newspaper reporters who, behind his back, scoffed at the notion that a "little sound" could effect such devastations. Yet, it was precisely with such a "little sound" that Tesla nearly brought down his laboratory on Houston Street. His compact infrasonic impulsers were terribly efficient. Tesla later designed and tested infrasonic impulse weapons capable of wrecking buildings and whole cities on command.

Walt Disney and his artists were once made seriously ill when a sound effect, intended for a short cartoon scene, was slowed down several times on a tape machine and amplified through a theater sound system. The original sound source was a soldering iron, whose buzzing 60-cycle tone was lowered five times to 12 cycles. This tone produced a lingering nausea in the crew, which lasted for days.

Physiology seems to remain paralyzed by infrasound. Infrasound stimu­lates middle ear disruptions, ruining organismic equilibrium. The effect is like severe and prolonged seasickness. Infrasound immobilizes its victims. Restoration to normal vitality requires several hours, or even days. Exposure to mild infrasound intensities produces illness, but increased intensities re­sult in death. Alarming responses to infrasound have been accurately recorded by military medical experts. Tolerances from 40 to 100 cycles per second have been recorded by military examiners. The results are sobering ones. As infrasonic pitches decrease, the deadly symptoms increase. Altered cardiac rhythms, with pulse rates rising to 40 percent of their rest values, are the precursors to other pre-lethal states. Mild nausea, giddiness, skin flushing, and body tingling occur at 100 cycles per second. Vertigo, anxiety, extreme fatigue, throat pressure, and respiratory dysfunction follow. Coughing, se­vere sternal pressure, choking, excessive salivation, extreme swallowing pains, inability to breathe, headache, and abdominal pain occur between 60 and 73 cycles per second. Post exposure fatigue is marked. Certain subjects contin­ued to cough for half an hour, while many continued the skin-flush manifes­tation for up to four hours.

Significant visual acuity decrements are noted when humans are exposed to infrasounds between 43 and 73 cycles per second. Intelligibility scores for persons exposed, fall to a low of 77 percent their normal scores. Spatial orientation becomes completely distorted. Muscular coordination and equilibrium falter considerably. Depressed manual dexterity and slurred speech have been noted before individuals blackout. Just before this point, a significant loss in intelligibility is noted.

Vladimir Gavreau, a French Scientist, experimented with the effects of very low frequency sound, inaudible sound waves below 20 Hertz. Many speculated he was working on a non-lethal weapon for the military. Officials soon realized it was difficult to control the dispersion of omni-directional infrasound and abandoned it. It killed the operator as well as the enemy. Infrasound travels faster through water and solids and does not dissipate. Its physical and psychological effects are varied but the overt characteristic is an intense feeling of oppression. Fatigue, blurred vision, irritability, headache, nausea, difficulty concentrating, tingling skin, and aching limbs are all effects of infrasound.

Low frequency electro-magnetic waves have similar effects. David S. Walonick did a study of the effects of 6-10 Hz ELF on brain waves. Brain electrical activity in the theta and alpha (the creative, insightful and meditative states) centers around 6-8 Hz. Most of our awake thinking is in the Beta range, above 12 Hz. Brain wave frequency ranges can be associated with mood or thought patterns. He determined the brain "locks onto" artificial electro-magnetic energy. It attempts to fight the invasion, then locks onto the electric energy. Likewise it can work at the cellular level causing disease.

The findings of Dr. Gavreau in the infrasonic range between 1 and 10 cycles per second are truly shocking. Lethal infrasonic pitch lies in the 7-cycle range. Small amplitude increases affect human behavior in this pitch range. Intellectual activity is first inhibited, blocked, and then destroyed. As the amplitude is increased, several disconcerting responses had been noted. These responses begin as complete neurological interference. The action of the medulla is physiologically blocked, its autonomic functions cease.

For history of infra-sound research in America see:


For insight how it's being used in Canada against dissent, see: