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There was no evidence of any detrimental effect other than middle ear discomfort. Tests of high-intensity infrasound on animals resulted in measurable changes, such as cell changes and ruptured blood vessel walls. Infrasound is one hypothesized cause of death for the nine Soviet hikers who were found dead at Dyatlov Pass in 1959. [56]
There is a belief that infrasound can cause symptoms, including tinnitus, stress, fatigue, memory loss, attention deficit, vertigo, migraines and sleep deprivation. [ 4 ] A panel of experts commissioned by the Massachusetts Department of Environmental Protection concluded in 2012 that "there is not an association between noise from wind ...
A pigeon typically flies at 20 km/h, so a turn could cause up to a 12% modulation of an infrasonic stimulus. According to response measurements, pigeons are able to distinguish frequency changes of 1-7% in the infrasonic range, showing that the use of Doppler shifts for infrasound localization may be within the pigeon's perceptive capabilities.
He discovered the cause of the "haunting" by accident. The next day Tandy, a keen fencer, was polishing his sword when he noticed that the blade was vibrating even when clamped in a vice. [10] [11] From this Tandy developed the idea that infrasound might be present in the laboratory. [8]
Death anxiety, in general, she explains, “refers to any negative feeling people may have about death or dying. This can include feelings of fear, dread or sadness.
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Death anxiety can mean fear of death, fear of dying, fear of being alone, fear of the dying process, etc. [29] Different people experience these fears in differing ways. There continues to be confusion on whether death anxiety is a fear of death itself or a fear of the process of dying. [30]
A chance discovery led officials in northern England to uncover well over 100 unexploded practice bombs from World War II buried underneath a children's playground.