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mysterious acoustic wavesScienceBlog.com
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79% Informative
New research facilities are helping scientists better understand these mysterious acoustic waves that can circle the planet multiple times.
Researchers are using new facilities and monitoring networks to understand how these ultra-low frequency sound waves propagate through the atmosphere and potentially impact human health.
Infrasound waves can propagate over vast distances due to their long wavelengths.
The Krakatoa volcanic eruption in 1883 detected by weather stations in London over 10,000 kilometers away.
The minimum intensity (in decibels) required for humans to hear a 20 Hz infrasound is 88 -90decibels, equivalent to the noise level in a race car cockpit.
There are 60monitoring stations worldwide, with one of the most recent installed in Guadeloupe in 2020 .
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