Vibrations and how they get to your ears.
Noise for airports is a blog about culture, sound, music, and technology.
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Updated (sometimes) by Nick Seaver.
Ringing Rocks Park is a 128 acre park nestled in the woods in Upper Black Eddy. Located within the park is a field of boulders, about 7-8 acres in size, that have an unusual property. When the rocks are struck with a hammer or another rock, they sound as if they are metal and hollow and ring with a sound similar to a metal pipe being struck.(via Atlas Obscura, follow link above for video/audio samples)