How geoscience got to the bottom of a mysterious hum

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Topic: How geoscience got to the bottom of a mysterious hum (Read 400 times) previous topic - next topic

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Since the 1970s, low-frequency rumbles have been reportedly heard around the world — spawning numerous conspiracy theories about the source....

Re: How geoscience got to the bottom of a mysterious hum

So, that's what I hear when I plug my Rega into my receiver.