Webster's Dictionary defines infrasonic, or infrasound, as "1: having or relating to a frequency below the audibility range of the human ear. 2: utilizing or produced by infrasonic waves or vibrations." Theories on Infrasound and its Effect on Humans

Infrasound waves hug the ground, and travel for long distances without losing strength. Not much amplitude is needed to produce negative effects in the human body, and even mild infrasound exposure requires several hours, or possibly even days, to reverse symptoms.

Man-made structures, such as engines, cars, trains, motorcycles, and airplanes also produce infrasound. John Cody noted that pilots exposed to infrasonic vibrations of jet chassis experience a reduction in "vision, speech, intelligence, orientation, equilibrium, and the ability to accurately discern situations, and make reasonable decisions."

Depending on the pitch, infrasound can cause physical pressure,  fear, disorientation, and negative physical and mental symptoms.

Please note there are varying degrees in the infrasound range and those that cause the most negative and damaging effects is not a common occurrence. It is something that can often be noticed physically, but in low levels the vibrations may not noticeably felt, but nonetheless it may still affect you.

Infrasound disrupts the normal functioning of the middle and inner ear, and may lead to nausea, imbalance, impaired equilibrium, immobilization, and disorientation. Exposure to even mild doses of infrasound can lead to illness in some people.

The Infrasound frequency can appear frequently under natural conditions. Infrasound may arise when strong gusts of wind clash with chimneys or towers. I’m sure you’ve all experienced this at one time or another during your life. This heavy base sound penetrates even through very thick walls. Such sound waves start rumbling in tunnel-shaped corridors.

Long pipe organs, such as those found in churches and cathedrals produce infrasound. In one UK study, the extreme bass frequencies instilled strange feelings at a concert hall. Effects were "extreme sense of sorrow, coldness, anxiety, and even shivers down the spine." (source; Organ Music Instills Religious Feelings,' by Jonathan Amos, 9/8/2003)

Some cars are equipped with a boom type device initiated with a  button. These devices generate large amplitude pressure/low frequency noise. When the “burp button” is used, it activates a low-band pass-filter which forces all of the amplifier's power through the sub-woofer speakers at frequencies lower than a certain number of Hertz. At extremely low frequencies, it becomes infrasound. Thus you feel the blast of noise, as well as hear it. Which may explain why some humans like booming subwoofers in their vehicles and/or homes, and it is not just a “cool and popular” status meaning as we as a society have come to believe. We’ve all tried to block the sound from these cars when next to them stopped at a traffic light. Rolling up the wondow to block the sound doesn’t work, because you still continue to feel the vibrations and of course, how much it annoys us.

Infrasonic vibrations can also be pleasantly stimulating in mild levels. The effects of brief, mild exposure can give a feeling of invigoration for hours. While a person may feel euphoric, the body is being subjected to an elevated heart rate, elevated blood pressure, and a release of endorphins which is similar to the "fight or flight" adrenaline response. Feeling the effects of high-intensity/low-frequency sound can be addictive,  partially due to the release of endorphins in the body.

Interestingly, Walt Disney and his artists accidentally experienced infrasound on one occasion. A cartoon sound effect was slowed from 60 cycles per second to 12 cycles per second via a tape-editing machine and was amplified through the theater system. The resulting tone, though brief in duration, produced in the entire crowd nausea that lingered for several days. 100 Cycles Per Second (Hz) - At this level, a person experiences irritation, "mild nausea, giddiness, skin flushing, and body tingling." Following this, a person undergoes "vertigo, anxiety, extreme fatigue, throat pressure, and respiratory dysfunction." (Source; the Sonic Weapon of Vladimir Gavreau, by Gerry Vassilatos)

 There are still a lot of theories about infrasound in question, but it is important that people and paranormal investigators in particular are aware of its existence and affects.

Physicists studying the effects of infrasound upon the human body have reported that  participants in their experiments complained of weariness,  pressure in the eyes and in the ears, but there was never a mention of hallucinations or ghosts. More results from other studies revealed the following.

Infrasound Toxicological Summary, November 2001 - "When male volunteers were exposed to simulated industrial infrasound of 5 and 10 Hz and levels of 100 and 135 dB for 15 minutes, feelings of fatigue, apathy, and depression, pressure in the ears, loss of concentration, drowsiness, and vibration of internal organs were reported. In addition, effects were found in the central nervous system, the cardiovascular system, and the respiratory system. Synchronization phenomena were enhanced in the left hemisphere. Visual motor responses to stimuli were prolonged, and the strength of the effect was reduced. Heart rate was increased during the initial minutes of exposure. Heart muscle contraction strength was reduced. Respiration rate was significantly reduced after the first minute of exposure." (Sorry, I failed to note the citation for this paragraph of information)

Human reactions to infrasound

20 Hz is considered the normal low frequency limit of human hearing. When pure sine waves are reproduced under ideal conditions and at very high volume, a human listener will be able to identify tones as low as 12 Hz. Below 10 Hz it is possible to perceive the single cycles of the sound, along with a sensation of pressure at the eardrums.

Infrasound has been known to cause feelings of awe or fear in humans. Since it is not consciously perceived, it can make people feel vaguely that supernatural events are taking place.

The Ghost in the Machine

Research by Vic Tandy, a lecturer at Coventry University, suggested that the frequency 19 Hz was responsible for many ghost sightings. He was working late one night alone in a supposedly haunted laboratory at Warwick, when he felt very anxious and could detect a grey blob out of the corner of his eye. When he turned to face it, there was nothing.

The following day, he was working on his fencing foil, with the handle held in a vice. Although there was nothing touching it, the blade started to vibrate wildly. Further investigation led him to discover that the extraction fan was emitting a frequency of 18.98 Hz, very close to the resonant frequency of the eye (given as 18 Hz in NASA Technical Report 19770013810). This was why he saw a ghostly figure — it was an optical illusion caused by his eyeballs resonating. The room was exactly half a wavelength in length, and the desk was in the centre, thus causing a standing wave which was detected by the foil.

Tandy investigated this phenomenon further and wrote a paper entitled The Ghost in the Machine. He carried out a number of investigations at various sites believed to be haunted, including the basement of the Tourist Information Bureau next to Coventry Cathedral and Edinburgh Castle.

Understanding UV/IR & Its Use in the Field

  In the field of paranormal investigating infrared lights, cameras, etc. are commonly used to try and capture a photo or video of entities ….referred to by most as ghost. However, in the past two years and in particular the past year the focus has been on the UV light spectrum. This has occurred for several reasons, and as an investigator and student of the field I’m glad to see the wheels spinning and results happening as the scientist and technical engineers, etc. are diligently tackling the exploration of the UV spectrum and its uses as well as the development of UV devices. Full spectrum cameras have become available but are still very expensive and do not truly reach the highest frequency of the UV range we need to see in. It has become a breakthrough technology that has open yet another window for us human to see through into the unknown.

As I have gathered solid evidence, mostly of EVP (electronic voice phenomena) rather than many questionable photos I have, and study the data and information of the cases I’ve worked on I began to form some theories on how to improve the “capture” of whatever it is on “the other side” that occasionally makes itself known to me. One of these theories formed a couple of years ago was that they move and speak in not a lower, but a higher frequency than we do as human. However, until recently, that technology wasn’t available to the general public and most definitely was not affordable to the average paranormal investigator and ghost hunter.

Thus far, there has been a higher success rate of the capture of anomalies in the UV range versus the infrared range. We are now seeing many more photo and video anomalies, than we were able to see in just the IR range. It has opened a window to a world previously unknown to our human eyes. It all looks to be a very promising path that we still need to move on to reach the true and highest UV spectrum that more than likely holds the key to unlocking so many mysteries.

Almost everything emits, reflects, or transmits some kind of light. The Electromagnetic (EM) Spectrum is the measurement of the frequency range of EM radiation of an object. The frequency is measured in wavelengths.

The long wavelengths/low frequency is: the Radio, Microwave, and Infrared waves.

The short wavelengths/high frequency is: Ultraviolet, X-ray and Gamma Rays.

The Visible Spectrum is the range of the Electromagnetic Spectrum that is visible by the human eye

The simplest way to explain the light spectrum in its application of trying to view “the other side” is this:

UV (UltraViolet) equates to high frequency in short wavelength

IR (infraRed) equates to low frequency in long wavelength

We don’t see the entities with our eyes because the capability of our eyes to brain speed is only capable of seeing in a very limited range. Essentially the entities move at a faster speed than we can process with our eyes/brain. We may occasionally catch a glimpse of a “ghost” and then they are gone. Why? Think of viewing someone moving around in a strobe lighted room. You see them in that particular corner and than they are gone right before your eyes and within a blink seemed to have moved all the way across the room elsewhere before your eyes can even catch up with them. Now take that same scenario but now the person is moving around at even a faster pace.

This same theory would explain why they see us.  I’ve verified this several times with EVPs in which I asked: Can you see us/hear us? With responses that have stated “yes”.

They see us because we are moving like turtles to them.

There are so many more pieces to this puzzle that is connected to the whys and hows of this all. For instance, the movement of cells/atoms in extreme temperature ranges, like absolute zero and the documented cold spots, etc. or external factors like solar flares, etc., but I’ll save that for another entry at another time. For now I will try to just focus on the specifics of UV/IR.

Visable light waves are the only electromagnetic waves we can see. We see these waves as the colors of the rainbow. Each color has a different wavelength. Red has the longest wavelength and violet has the shortest wavelength. When all the waves are seen together, they make white light.

When white light shines through a prism, the white light is broken apart into the colors of the visible light spectrum. Water vapor in the atmosphere can also break apart wavelengths creating a rainbow.

Scientists are searching for, and finding life in unlikely places, by mimicking the way certain animals see the world.

In the same way that dogs can hear sounds outside the range of audible sounds to humans, bees can see things in the world that we cannot. Scientists would like to have better vision outside the range of visible light, for a variety of reasons, one of which is to look for signs of life on other planets

 Light travels in waves called photons, with varying speeds and sizes. Ultraviolet (UV) waves are shorter than the light waves we can see, but other living thing can see UV light. While UV waves are shorter than what we can see, infrared waves are just a bit longer than the red waves we can detect with our eyes, and therefore are invisible to humans. But snakes can see them. In another example of scientists seeing the world like animals do, Paul Falkowski and colleagues at Rutgers University in New Jersey used infrared cameras to discover a new marine life form. They now can see what the ocean "looks" like when examined with eyes that see what our eyes cannot.