Given the different contractions of the two different metals as a result of the cold, when it gets cold enough iron cannonballs will fall off a brass monkey.

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"In states where heat and humidity is the norm, people may not realize they are vulnerable when it gets cold, " said Gerald McGwin, a professor of epidemiology at University of Alabama.

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The Frogg Togg is scarf shaped and sort of clammy, and when you run it in under cold water (or dip it) it gets cold and stays that way for awhile.

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Before Saakashvili came to power, there were winters when Georgians stayed in the cold and dark due to lack of power and corruption among public servants but it rarely gets mentioned today.

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The Venezuelan slugger who jokes that he gets goose bumps when it's 80 degrees, much less half that, has played through snow, bitter cold and winds at Coors Field this season.

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