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Resource Documents by Bell, Andrew

Bell, Andrew
Constructive interference of tonal infrasound from synchronised wind farm turbines: evidence and implications
SUMMARY. Noise from wind farms is contentious: people who live nearby complain of annoyance, and yet broadband measurements of infrasound seem to indicate the noise is generally not above audibility criteria. The paradox can be resolved by supposing that wind farms generate a strong tonal signal at the blade passing frequency, 0.8 Hz, and that this infrasound, with a wavelength of 400 m, can constructively interfere if two or more wind turbines operate in synchrony and the path lengths differ . . . Complete article »

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