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Industrial-facilities mechanical engineer Steve Kohlhase spent $30,000 on legal fees and equipment related to his independent investigation of the low-frequency hum. [19] Garret Harkawiks' 2019 documentary film Doom Vibrations focused on Kohlhase's ten year journey to figure out what was causing the noise, and his theory behind it. [ 20 ]
And ELFs – extremely low frequency waves that are used to communicate with submarines – have led to theories that the Hum is the accidental by-product of military technology.”
The report "A Review of Published Research on Low Frequency Noise and its Effects" [54] contains a long list of research about exposure to high-level infrasound among humans and animals. For instance, in 1972, Borredon exposed 42 young men to tones at 7.5 Hz at 130 dB for 50 minutes.
[79] [80] This noise pollution significantly raises the low-frequency ambient noise levels above those caused by wind. [81] Animals such as whales that depend on sound for communication can be affected by this noise in various ways. Higher ambient noise levels also cause animals to vocalize more loudly, which is called the Lombard effect ...
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What’s causing the hum? A local government’s lengthy investigation struggled to find answers. Skip to main content. News. Search. Need help? Call us! 800-290-4726. Login / Join. Mail ...
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