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The Source of Earth's 'Hum' Finally Discovered
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Source: softpedia
August 10, 2009
Though our ears are too insensitive to perceive it, the planet is constantly generating a low-frequency humming noise, which was first discovered with instruments in 1998. At a frequency of around 10 millihertz, the sound is far outside our hearing range, as we can only perceive sounds as low as 20 hertz. Now, scientists have finally been able to determine the source of the humming noise, and also the regions where it can be heard most loudly. The find puts an end to rumors and conspiracy theories about some unnatural event that may be causing the hum.
Ur_VA_IT_Guy
3 months ago
32 comments
Wow. So scientists have discovered what causes a noise we otherwise never would have known existed. Isn't that like trying to prove the question, "If a tree falls in the forest and no one is around, does anyone care?" :-P