The magical acoustic secrets of a famous cave known as the "Devil's Church" have been revealed by researchers. The Devil's Cave, also known Pirunkirkko, is situated in the Koli mountain range in ...
Mammoth Cave served as "nature's muse" for audio engineer Yuri Lysoivanov There is an organ in Luray Caverns in the Shenandoah valley. Evidently it uses the rock to make sound. I've never heard it ...
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