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Full Version: Bizarre Sounds from Frozen Lake Explained
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http://www.livescience.com/48309-acousti...rocks.html

SNIP: A self-proclaimed "professional YouTuber" has scored a viral video hit with his discovery of the sci-fi sounds produced by skipping rocks across a frozen lake. The winter phenomenon is old hat to kids from cold weather states, but for Cory Williams, the eerie pings and pews were jaw-droppingly bizarre....
I wonder what causes that. I used to skip rocks on rivers and lakes and never heard a sound like that.