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How do microwaves enter the brain? Uncover the technology that allows people to hear voices in their heads!
When we talk about the source of sound, we naturally think of sound waves traveling through the air. However, have you ever thought that microwaves can also induce sounds in the human mind? This is called the Microwave Auditory Effect, and it's a surprising and complex phenomenon.
The microwave auditory effect refers to the ability of humans to hear sounds produced directly by pulsed or modulated radio frequencies, without the need for any external electronic device to receive them. This effect was first reported during World War II, when some people found themselves hearing strange noises when they were near radar transmitters. In 1961, American neuroscientist Allan H. Frey published his first study on the microwave auditory effect, revealing the existence of this phenomenon and its mechanism.
The microwave auditory effect is caused by thermal expansion of certain parts of the audio device, which remains to be further explored.
In Fury's experiments, his subjects were able to hear appropriately pulsed microwave radiation at distances ranging from a few inches to hundreds of feet from the microwave transmitter. Research shows that the main factor driving these sounds is peak power density, not average power density. At 1.245 GHz, the peak power density required for sensing is less than 80 mW/cm². The sounds heard by the subjects can be described as buzzing, clicking, hissing, or knocking, depending on a variety of transmission parameters.
With adjustments to the transmitter parameters, Fury was also able to induce the perception of strong head movements without causing vestibular symptoms such as dizziness or nausea.
This technology has attracted attention in electronic warfare. Between 2003 and 2004, WaveBand was commissioned by the U.S. Navy to design a microwave auditory effects system called MEDUSA, intended to temporarily paralyze personnel through remote application. However, some experts have questioned the effectiveness of this device, believing that it is not effective enough to achieve its intended purpose. Kenneth Foster, a professor of bioengineering at the University of Pennsylvania, believes that due to the biophysical limitations of the human body, such devices could cause harm before they cause noise.
The microwave auditory effect has also been used to explain a series of unexplained illnesses among U.S. diplomats in Cuba and China that have been reported since 2017 and 2018. However, this explanation still causes controversy in the academic community, and many bioengineering experts have different opinions, believing that microwaves are not the main cause of the disease.
To this day, many people claim that the government uses microwave signals to control them mentally and that it is a form of electronic harassment. They call this technology "Voice to Skull" or "V2K."
With the in-depth study of this phenomenon, many people have developed conspiracy theories about it. The internet is filled with support groups and websites for people who claim they have been affected by "mind control," which is amazing to consider. Is the microwave auditory effect a new milestone in technological advancement, or just another explanation for the conspiracy theory? As the researchers have asked, how will the real impact of this effect change the moral and legal boundaries of future society?
