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Baguley said for example the noise can be attributed to environmental causes, such as industrial machinery at a nearby factory or an industrial fan. [1] [19] But he also found that the majority of cases remain unexplained. Baguley said, "I think most people view the hum as a fringe belief because it's so subjective — people say they hear ...
The torsional deflection of a simple cylinder cannot radiate efficiently acoustic noise, but with particular boundary conditions the stator can radiate acoustic noise under torque ripple excitation. [8] Structure-borne noise can also be generated by torque ripple when rotor shaft line vibrations propagate to the frame [9] and shaft line.
Upsweep is an unidentified sound detected on the American NOAA's equatorial autonomous hydrophone arrays. This sound was present when the Pacific Marine Environmental Laboratory began recording its sound surveillance system, SOSUS, in August 1991. It consists of a long train of narrow-band upsweeping sounds of several seconds in duration each.
Videos of eerie noises erupting from the skies have recently surfaced on YouTube, sending people into a panic around the world. The video above shows a particularly frightening episode of this ...
A woman noticed a "weird noise" coming from a tiny hole in her apartment. It turned out to be a familiar friend. Woman discovers source of 'weird noise' in her wall: 'I had the exact same happen ...
The human brain evolved to recognize patterns, and if a person listens to enough noise the brain will detect words, even when there is no intelligent source for them. [48] [49] Expectation also plays an important part in making people believe they are hearing voices in random noise. [50] Apophenia is related to, but distinct from pareidolia. [51]
Wilmore, who boarded the Starliner, picked up the sound on his microphone. "Alright Butch, that one came through," Mission Control said. "It was kind of like a pulsing noise, almost like a sonar ...
The term phonophobia comes from Greek φωνή - phōnē, "voice" or "sound" [3] and φόβος - phobos, "fear". [4] Ligyrophobics may be fearful of devices that can suddenly emit loud sounds, such as computer speakers or fire alarms.