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http://www.cnn.com/2003/TECH/science/09/08/ghosts.sounds.reut/index.html
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...weird sensations and shivers down the spine may not be due to the presence of ghosts in haunted houses but to very low frequency sound that is inaudible to humans.
Originally posted by Phobos
http://www.cnn.com/2003/TECH/science/09/08/ghosts.sounds.reut/index.html
Low frequency sound refers to sound waves with frequencies below 20 Hz. These sounds are inaudible to humans but can still be felt as vibrations in the body. Some people believe that exposure to low frequency sound can cause feelings of unease or fear, which may contribute to the perception of ghostly experiences.
Currently, there is no scientific evidence to support this connection. While some studies have shown that exposure to low frequency sound can cause physical discomfort and even hallucinations, there is no evidence to suggest that it can create supernatural experiences.
No, there is no evidence to suggest that low frequency sound can create the perception of ghosts or paranormal activity. While it may contribute to feelings of unease or fear, there is no scientific basis for the belief that it can create supernatural experiences.
There is no evidence to suggest that certain individuals are more sensitive to low frequency sound than others. However, it is possible that some people may be more susceptible to feelings of unease or fear caused by low frequency sound, which may contribute to their perception of ghostly experiences.
There are many factors that can contribute to the perception of ghostly experiences, including psychological factors, cultural beliefs, and environmental factors. These experiences are often subjective and can be influenced by a variety of factors, making it difficult to determine a single cause.