Saturday, February 4, 2012

Hoar frost

picture taken by Stan G

Minnesota has had mild weather and now we are experiencing dense fog in the morning until around 10 AM.  The results are a fairy tale world for our pleasure. Hoar frost develops.   Hoar frost refers to the white ice crystals, loosely deposited on the ground or exposed objects, that form on cold clear nights when heat losses into the open skies cause objects to become colder than the surrounding air. The name hoar comes from Old English and can be used as an adjective for showing signs of old age in reference to the frost which makes trees and bushes look like elderly white hair.

 

 



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