Completely Optional Knowledge

The podcast where we answer the questions you never knew you had. Produced by Andrew Norton with music by Breakmaster Cylinder.

http://completelyoptionalknowledge.org

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Why Do Frozen Lakes and Rivers Sound So Creepy?


Brigitta Green from the perennial winter wonderland of Minnesota has a fitting question for us about ice. After a mysterious, late night howling sound caused “mass slight curiosity” on the streets of St. Paul last winter, she wants to know how it is that a frozen body of water can produce such an eery noise. Chris Polashenski, Arctic researcher and expert on all things cold, has our answer.


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 2016-12-26  8m