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Old 09-08-2012, 04:36 PM  
Bill8
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Join Date: Oct 2001
Posts: 1,901
Quote:
Originally Posted by papill0n View Post
try again bill

i've lived in the worlds biggest mines over 30 years and never heard sounds like that

and the videos are global not just from canada
so you think it's what then?

I've heard steam and high pressure gasses coming from pipes, the sound is very much like that sound. And sounds reflecting off atmospheric inversion layers is a known phenomena.
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