The hum are distant industrial sources ~6 miles, the cause is thermal inversion
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Home › Forums › Strange Sounds from the Sky › The hum are distant industrial sources ~6 miles, the cause is thermal inversion
Antonio GimenoThe hum : no longer a mystery. I've found a succesful methodology to locate the source of hum everywhere around the world, and the science that is behind it. pic.twitter.com/40IifNK9IF
— Antonio Gimeno (@agntui) May 23, 2020