3 THINGS YOU DIDN’T KNOW….Frigid Factoids

·        Seawater freezes at 29°F.

·        Because mercury freezes at –38°F, alcohol is used inthermometers in colder zones. It freezes at –173°F.

·        Fifty to 70 percent of body heat is lost through the top of yourhead, but only if the rest of your body is covered up. (Your mother was right,as usual.) 

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